{"title":"Heat Pumps Cylinders","description":"\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eDiscover our premium range of heat pump cylinders, engineered to optimise hot water storage and delivery for energy-efficient heating systems. Designed specifically for heat pumps, these cylinders offer superior insulation and corrosion-resistant stainless steel construction for durability and long service life. Available in various capacities, including compact slimline and high-volume models, our cylinders provide rapid heat recovery and consistent hot water supply. Many come pre-plumbed with essential components for easy installation and superior performance. Fully compliant with British standards and built to enhance system efficiency, these cylinders help reduce energy costs while supporting low-carbon heating solutions.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:pb-2\"\u003eShop now for reliable heat pump cylinders with fast delivery across the UK.\u003c\/p\u003e","products":[{"product_id":"telford-pre-plumbed-indirect-cylinder-with-50l-integrated-buffer-170l","title":"Telford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 170L","description":"\u003ch2\u003eTelford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 170L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 170L Pre-Plumbed Indirect Cylinder with 50L Integrated Buffer\u003c\/strong\u003e is a premium, installer-friendly solution for homes using air source heat pumps or renewable energy systems. This cylinder features a high-performance 2m² coil, integrated 50L buffer store, and factory-fitted components for rapid installation and reliable, mains pressure hot water.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e170 litre primary hot water storage + 50 litre integrated buffer\u003c\/li\u003e\n\u003cli\u003ePre-plumbed with all key components for fast installation\u003c\/li\u003e\n\u003cli\u003eLarge surface area coil for efficient heat transfer from heat pumps\u003c\/li\u003e\n\u003cli\u003eDuplex stainless steel inner vessel for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eSupplied with expansion vessel, unvented kit, and 3kW immersion heater\u003c\/li\u003e\n\u003cli\u003eWhite steel case, fully insulated for minimal heat loss\u003c\/li\u003e\n\u003cli\u003eLifetime vessel warranty (2 years on components)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity (Primary)\u003c\/th\u003e\n\u003ctd\u003e170L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer Volume\u003c\/th\u003e\n\u003ctd\u003e50L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003e2 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1315 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e580 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (empty\/full)\u003c\/th\u003e\n\u003ctd\u003e79 \/ 247 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater\u003c\/th\u003e\n\u003ctd\u003e1 x 3kW (factory-fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Coil Connections\u003c\/th\u003e\n\u003ctd\u003e22mm compression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Working Pressure\u003c\/th\u003e\n\u003ctd\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime (vessel), 2 years (components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":57976742642013,"sku":"TELPPID170","price":1900.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestpre-plumbedheatpumpcylinder_combined50litrebuffer.webp?v=1762971707"},{"product_id":"telford-pre-plumbed-indirect-cylinder-with-50l-integrated-buffer-200l","title":"Telford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 200L","description":"\u003ch2\u003eTelford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 200L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 200L Pre-Plumbed Indirect Cylinder with 50L Integrated Buffer\u003c\/strong\u003e is designed for medium to large homes and is purpose-built for use with heat pumps and renewable systems. With a high-efficiency 2.3m² coil and integrated buffer, it delivers rapid reheat times and consistent mains pressure hot water.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e200 litre primary hot water storage + 50 litre integrated buffer\u003c\/li\u003e\n\u003cli\u003ePre-plumbed for quick, hassle-free installation\u003c\/li\u003e\n\u003cli\u003eLarge coil for maximum heat transfer from renewables\u003c\/li\u003e\n\u003cli\u003eDuplex stainless steel inner vessel for durability\u003c\/li\u003e\n\u003cli\u003eSupplied with expansion vessel, unvented kit, and 3kW immersion heater\u003c\/li\u003e\n\u003cli\u003eWhite steel case, fully insulated for low heat loss\u003c\/li\u003e\n\u003cli\u003eLifetime vessel warranty (2 years on components)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity (Primary)\u003c\/th\u003e\n\u003ctd\u003e200L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer Volume\u003c\/th\u003e\n\u003ctd\u003e50L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003e2.3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1530 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e580 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (empty\/full)\u003c\/th\u003e\n\u003ctd\u003e90 \/ 290 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater\u003c\/th\u003e\n\u003ctd\u003e1 x 3kW (factory-fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Coil Connections\u003c\/th\u003e\n\u003ctd\u003e22mm compression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Working Pressure\u003c\/th\u003e\n\u003ctd\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime (vessel), 2 years (components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":57976749261149,"sku":"TELPPID200","price":1950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestpre-plumbedheatpumpcylinder_combined50litrebuffer_d1642611-fc9b-48ef-a83b-3fa3b3e40f5d.webp?v=1762971713"},{"product_id":"telford-pre-plumbed-indirect-cylinder-with-50l-integrated-buffer-250l","title":"Telford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 250L","description":"\u003ch2\u003eTelford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 250L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 250L Pre-Plumbed Indirect Cylinder with 50L Integrated Buffer\u003c\/strong\u003e is ideal for larger homes or properties with higher hot water demand. Its 2.7m² coil and integrated buffer ensure maximum efficiency and compatibility with modern heat pumps and renewable systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e250 litre primary hot water storage + 50 litre integrated buffer\u003c\/li\u003e\n\u003cli\u003eFactory pre-plumbed and pre-wired for rapid installation\u003c\/li\u003e\n\u003cli\u003eLarge surface area coil for fast heat transfer\u003c\/li\u003e\n\u003cli\u003eDuplex stainless steel vessel for long life\u003c\/li\u003e\n\u003cli\u003eSupplied with expansion vessel, unvented kit, and 3kW immersion heater\u003c\/li\u003e\n\u003cli\u003eWhite steel case, fully insulated\u003c\/li\u003e\n\u003cli\u003eLifetime vessel warranty (2 years on components)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity (Primary)\u003c\/th\u003e\n\u003ctd\u003e250L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer Volume\u003c\/th\u003e\n\u003ctd\u003e50L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003e2.7 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1840 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e580 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (empty\/full)\u003c\/th\u003e\n\u003ctd\u003e105 \/ 355 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater\u003c\/th\u003e\n\u003ctd\u003e1 x 3kW (factory-fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Coil Connections\u003c\/th\u003e\n\u003ctd\u003e22mm compression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Working Pressure\u003c\/th\u003e\n\u003ctd\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime (vessel), 2 years (components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":57976757354845,"sku":"TELPPID250","price":2050.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestpre-plumbedheatpumpcylinder_combined50litrebuffer_616d9988-6594-4087-8a4d-0ca6c80c124f.webp?v=1762971673"},{"product_id":"telford-tempest-pre-plumbed-indirect-heat-pump-cylinder-with-50l-integrated-buffer-300l","title":"Telford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 300L","description":"\u003ch2\u003eTelford Tempest Pre-Plumbed Indirect Heat Pump Cylinder with 50L Integrated Buffer – 300L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 300L Pre-Plumbed Indirect Cylinder with 50L Integrated Buffer\u003c\/strong\u003e is the ultimate solution for large homes or light commercial properties with substantial hot water needs. With a 3.1m² coil and integrated buffer, it ensures rapid reheat and high flow rates for the most demanding systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e300 litre primary hot water storage + 50 litre integrated buffer\u003c\/li\u003e\n\u003cli\u003ePre-plumbed and pre-wired for quick, tidy installation\u003c\/li\u003e\n\u003cli\u003eExtra-large coil for maximum heat pump efficiency\u003c\/li\u003e\n\u003cli\u003eDuplex stainless steel vessel for exceptional durability\u003c\/li\u003e\n\u003cli\u003eSupplied with expansion vessel, unvented kit, and 3kW immersion heater\u003c\/li\u003e\n\u003cli\u003eWhite steel case, fully insulated\u003c\/li\u003e\n\u003cli\u003eLifetime vessel warranty (2 years on components)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity (Primary)\u003c\/th\u003e\n\u003ctd\u003e300L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBuffer Volume\u003c\/th\u003e\n\u003ctd\u003e50L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003e3.1 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e2100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e580 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (empty\/full)\u003c\/th\u003e\n\u003ctd\u003e120 \/ 420 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater\u003c\/th\u003e\n\u003ctd\u003e1 x 3kW (factory-fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePrimary Coil Connections\u003c\/th\u003e\n\u003ctd\u003e22mm compression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Working Pressure\u003c\/th\u003e\n\u003ctd\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime (vessel), 2 years (components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":57976767840605,"sku":"TELPPID300","price":2100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestpre-plumbedheatpumpcylinder_combined50litrebuffer_78755948-b1c5-4776-8b7f-9e2ffaed5308.webp?v=1762960018"},{"product_id":"joule-kodiak-indirect-slim-pre-plumbed-high-gain-cylinder-150l","title":"Joule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 150L","description":"\u003ch2\u003eJoule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 150L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eJoule Kodiak 150L Indirect Standard Pre Plumbed High Gain Cylinder\u003c\/strong\u003e (HUKH-G6150-L3C) is designed for efficient hot water delivery in modern homes and heat pump systems. Its patented pre-plumbed manifold ensures rapid installation and optimal zoning.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: 150 litres\u003c\/li\u003e\n\u003cli\u003eStandard diameter: 840 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 1150 mm\u003c\/li\u003e\n\u003cli\u003ePre-plumbed 3-zone manifold for fast, modular installation\u003c\/li\u003e\n\u003cli\u003eHigh gain coil for rapid heat-up\u003c\/li\u003e\n\u003cli\u003eStainless steel construction\u003c\/li\u003e\n\u003cli\u003e7-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e150L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e840 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003eHUKH-G6150-L3C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e7 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEAN\u003c\/th\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":57984807272797,"sku":"KOIDSTD150HG","price":2700.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JouleKodiakIndirectSlimPrePlumbedHighGainCylinder_1ac56970-1f11-465c-80f1-ea8036db8ac8.png?v=1752051236"},{"product_id":"joule-kodiak-indirect-standard-pre-plumbed-high-gain-cylinder-170l","title":"Joule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 170L","description":"\u003ch2\u003eJoule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 170L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eJoule Kodiak 170L Indirect Standard Pre Plumbed High Gain Cylinder\u003c\/strong\u003e (HUKH-G6170-L3C) is engineered for homes needing efficient, zoned hot water delivery. Its standard profile and pre-plumbed design make installation quick and straightforward.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: 170 litres\u003c\/li\u003e\n\u003cli\u003eStandard diameter: 530 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 1270 mm\u003c\/li\u003e\n\u003cli\u003ePre-plumbed 3-zone manifold\u003c\/li\u003e\n\u003cli\u003eHigh gain coil for fast recovery\u003c\/li\u003e\n\u003cli\u003eStainless steel tank\u003c\/li\u003e\n\u003cli\u003e7-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e170L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e530 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003eHUKH-G6170-L3C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e7 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEAN\u003c\/th\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":57984865927517,"sku":"KOIDSTD170HG","price":2850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JouleKodiakIndirectSlimPrePlumbedHighGainCylinder_97ee885b-4e79-4e73-bf1c-994084908108.png?v=1752051200"},{"product_id":"joule-kodiak-indirect-standard-pre-plumbed-high-gain-cylinder-200l","title":"Joule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 250L","description":"\u003ch2\u003eJoule Kodiak Indirect Standard Pre Plumbed High Gain Cylinder – 250L\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eJoule Kodiak 250L Indirect Standard Pre Plumbed High Gain Cylinder\u003c\/strong\u003e (HUKH-G6250-L3C) is a next-generation hot water storage solution, purpose-built for air source heat pump systems. Its patented, modular, pre-plumbed zonal control manifold allows for fast installation and optimal heat distribution across multiple zones. The high gain coil ensures rapid heat-up and recovery, while the robust stainless steel construction guarantees long-term reliability. This cylinder features a 3-zone, Generation 6 design for superior performance and installer access.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: 250 litres\u003c\/li\u003e\n\u003cli\u003eStandard diameter: 530 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 1770 mm\u003c\/li\u003e\n\u003cli\u003eHigh gain 3-zone Generation 6 design\u003c\/li\u003e\n\u003cli\u003ePre-plumbed for rapid, modular installation\u003c\/li\u003e\n\u003cli\u003ePatented modular zonal control manifold\u003c\/li\u003e\n\u003cli\u003eIncludes 2-port valve and motors, ERP-rated 7m circulating pump, pre-plumbed hot water pipework, bypass valve, filling point, and automatic air vent\u003c\/li\u003e\n\u003cli\u003eIncludes immersion heater (2.7–3.0 kW)\u003c\/li\u003e\n\u003cli\u003eDurable high efficiency stainless steel coil\u003c\/li\u003e\n\u003cli\u003eOperating pressure: 7 bar\u003c\/li\u003e\n\u003cli\u003eWarranty: 7 years (up to 25 years on vessel with registration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e250L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e530 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1770 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eFloor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMPN\u003c\/th\u003e\n\u003ctd\u003eHUKH-G6250-L3C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e7 years (up to 25 years on vessel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEAN\u003c\/th\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":57984871072093,"sku":"KOIDSTD250HG","price":2950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JouleKodiakIndirectSlimPrePlumbedHighGainCylinder_004a36f7-58d6-4029-b116-12e2af2a471b.png?v=1752051139"},{"product_id":"joule-kodiak-indirect-standard-pre-plumbed-high-gain-cylinder-250l","title":"Joule Kodiak Indirect Standard High Gain Pre Plumbed Cylinder – 300L","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eJoule Kodiak Indirect Standard High Gain Pre Plumbed Cylinder Cylinder – 300L (HUKH-G6300-L3C)\u003c\/strong\u003e is a 300 litre tall, indirect, unvented, high-gain pre-plumbed hot water cylinder from Joule’s Kodiak Generation 6 range. It is supplied factory-assembled with an integrated hydraulic and zoning pack to simplify installation with modern heat pump and low-temperature heating systems.\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e300 litre indirect unvented pre plumbed cylinder in the “Standard” tall configuration, suitable for medium to large properties with higher hot water demand.\u003c\/li\u003e\n\u003cli\u003ePre-plumbed “Kodiak” package with pipework, valves and hydraulic components built onto the front of the cylinder to minimise on-site labour.\u003c\/li\u003e\n\u003cli\u003eHigh-gain primary coil optimised for low-temperature heat sources such as air source heat pumps, providing fast heat-up and efficient operation.\u003c\/li\u003e\n\u003cli\u003eDesigned as a complete hot water and distribution solution, ready to connect to the heat pump, heating circuits and mains water supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneration 6 high-gain coil\u003c\/strong\u003e – large-surface-area indirect coil designed to maximise heat transfer at lower flow temperatures, improving recovery times with heat pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed and pre-wired layout\u003c\/strong\u003e – factory-assembled pipework, motorised valves, circulation pump and ancillary fittings reduce installation time and errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 3-zone arrangement\u003c\/strong\u003e – configured to serve multiple heating zones and domestic hot water from a single packaged unit (typically radiators, underfloor and cylinder load).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency insulation\u003c\/strong\u003e – thick polyurethane foam insulation and steel outer case to minimise standing heat losses and improve system efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel pre plumbed cylinder construction\u003c\/strong\u003e – corrosion-resistant inner vessel with long design life and extended shell warranty (subject to terms and correct installation).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-fitted immersion heater\u003c\/strong\u003e – electric backup \/ boost immersion (around 3 kW) for emergency hot water, legionella pasteurisation or tariff-optimised operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HUKH-G6300-L3C – Kodiak Indirect Standard High Gain Pre Plumbed Cylinder, 300L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal capacity:\u003c\/strong\u003e 300 litres (actual water volume slightly lower due to coil and fittings).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Indirect, unvented, high-gain, pre plumbed cylinder for use with external primary heat source (typically ASHP or boiler).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrientation:\u003c\/strong\u003e Vertical, tall “Standard” pattern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking pressure:\u003c\/strong\u003e Typically 7 bar operating pressure with suitable unvented kit (expansion vessel, PRV, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary coil:\u003c\/strong\u003e High-surface-area, high-gain stainless steel coil designed for low-temperature systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Rigid polyurethane foam with steel outer case in white\/grey finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e 230V 1-phase supply for immersion heater and controls (details depend on control pack specification).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate weights:\u003c\/strong\u003e Heavy-duty construction; significant weight when full, so suitable base and floor support are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Long-term pre plumbed cylinder shell warranty (often up to 25 years) with shorter cover on components, when installed and maintained to manufacturer’s instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIntegrated Hydraulic \u0026amp; Control Pack\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePre-mounted circulating pump for the primary heating circuit, selected to suit low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eFactory-fitted motorised valves for zone control (domestic hot water and multiple heating zones).\u003c\/li\u003e\n\u003cli\u003ePre-plumbed distribution manifold \/ header to manage flows between zones and cylinder.\u003c\/li\u003e\n\u003cli\u003eAncillary items such as automatic air vents, filling points, drain points and isolation valves to assist commissioning and servicing.\u003c\/li\u003e\n\u003cli\u003eClean pipe layout on the cylinder face, providing clearly labelled connections for quick hook-up to the heat pump, system pipework and mains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAir source heat pump installations in new-build or deep retrofit projects requiring a packaged hot water and zoning solution.\u003c\/li\u003e\n\u003cli\u003eMedium to large dwellings with multiple heating zones (e.g. underfloor and radiator circuits) and relatively high domestic hot water demand.\u003c\/li\u003e\n\u003cli\u003eProjects where reduced installation time, tidy plantroom appearance and manufacturer-optimised hydraulics are key design drivers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMust be installed by a suitably qualified engineer holding unvented hot water certification, following current building regulations and manufacturer instructions.\u003c\/li\u003e\n\u003cli\u003eRequires a level, structurally sound base capable of supporting the full operating weight of the cylinder, water and pre-plumbed components.\u003c\/li\u003e\n\u003cli\u003eProvide sufficient clearance at the front and sides for pipe connections, electrical wiring, servicing and future maintenance.\u003c\/li\u003e\n\u003cli\u003eConnect to the dedicated unvented kit (expansion vessel, pressure reducing valve, safety valve set, tundish and discharge pipework) to the required standards.\u003c\/li\u003e\n\u003cli\u003eCommission in line with Joule’s procedures, including flushing, filling, setting controls, checking safety devices and recording benchmark documentation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":57984883982685,"sku":"KOIDTA300HG","price":3200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JouleKodiakIndirectSlimPrePlumbedHighGainCylinder.png?v=1752051042"},{"product_id":"gledhill-stainlesslite-plus-heat-pump-180l-cylinder","title":"Gledhill StainlessLite Plus Heat Pump 180L Cylinder","description":"\u003ch1\u003eGledhill StainlessLite Plus Heat Pump 180L Cylinder\u003c\/h1\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eGledhill StainlessLite Plus Heat Pump 180L Cylinder\u003c\/strong\u003e is a high-quality stainless steel unvented hot water cylinder tailored for heat pump applications. This efficiently provides mains pressure domestic hot water by maximizing heat transfer from the lower temperature flow typical of air source and ground source.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Approximately 178–180 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable duplex stainless steel construction resistant to corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e Multi-pass corrugated stainless steel coil optimized for low temperature output (~50–60°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3 kW Incoloy immersion heater with thermostat pocket for backup heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Height 1306 mm, Diameter 550 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 34 kg empty, 212 kg full\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e 50 mm HCFC-free insulation for reduced heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Compression fittings, pressure \u0026amp; temperature relief valve, elbow on hot water draw-off, flexible hose for expansion vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years for peace of mind\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Notes:\u003c\/strong\u003e Supports legionella risk prevention with immersion heater thermostat controls (cuts in below heat pump max temp, cuts off at 60–65°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eDomestic or light commercial hot water from air source or ground source\u003c\/li\u003e\n\u003cli\u003eSystems requiring mains pressure DHW with efficient heat transfer at lower temperatures\u003c\/li\u003e\n\u003cli\u003eCompatible with heat pumps unable to regularly reach 60°C stored water temperature\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ctable style=\"width: 100%; height: 176.344px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eModel Code\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003ePLUHP180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eCapacity\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e~180 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eHeight\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e1306 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eDiameter\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e550 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e34 kg (empty)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eHeat Loss\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003eApprox. 55 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eImmersion Heater Power\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e3 kW Incoloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 66.5068%; height: 19.5938px;\"\u003eWarranty\u003c\/th\u003e\n\u003ctd style=\"width: 30.6361%; height: 19.5938px;\"\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cp\u003eThis cylinder offers a durable, efficient, and easy-to-install solution for heat pump domestic hot water systems, combining Gledhill’s trusted StainlessLite design with heat pump-optimised technology.\u003c\/p\u003e","brand":"Gledhill","offers":[{"title":"Default Title","offer_id":58017840365917,"sku":"PLUHP180","price":1130.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/GledhillStainlessLitePlusHeatPumpCylinder.jpg?v=1753960510"},{"product_id":"gledhill-stainlesslite-plus-heat-pump-210l-cylinder","title":"Gledhill StainlessLite Plus Heat Pump 210L Cylinder","description":"\u003ch2\u003eGledhill StainlessLite Plus Heat Pump 210L Cylinder\u003c\/h2\u003e\n\u003cp\u003eThe Gledhill StainlessLite Plus Heat Pump 210L Cylinder Model: \u003cstrong\u003ePLUHP210\u003c\/strong\u003e, is a high-performance, unvented hot water storage solution specifically engineered for use with air source or ground source heat pumps. Its unique, high-efficiency corrugated coil maximises heat transfer from lower temperature heat pump systems, ensuring fast recovery and energy savings. The unit is designed for robust residential hot water supply and meets current ERP and building regulation requirements.\u003c\/p\u003e\n\u003ch3\u003eTechnical Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e StainlessLite Plus Heat Pump 210L (PLUHP210)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 210 litres (nominal: 208L)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1,494mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 550mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 38kg (empty), 246kg (full), 49kg (gross inc. packaging)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Surface Area:\u003c\/strong\u003e 3.0 m² (high-efficiency corrugated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary return:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3kW Incoloy (back-up\/legionella cycle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Rating:\u003c\/strong\u003e ERP B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e High density, HCFC-free Envirofoam\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years (cylinder, subject to T\u0026amp;Cs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePurpose-built for use with low temperature heat pumps (air or ground source)\u003c\/li\u003e\n\u003cli\u003eHigh recovery coil design for rapid heating\u003c\/li\u003e\n\u003cli\u003eMains pressure hot water (unvented)\u003c\/li\u003e\n\u003cli\u003eSupplied with full kit: expansion vessel, PRV, controls, 3kW immersion, drain\/flexi\/90° elbow, tundish, thermostat pocket\u003c\/li\u003e\n\u003cli\u003eSupplied with secondary return tapping (recirculation compatible)\u003c\/li\u003e\n\u003cli\u003eImmersion heater recommended for periodic legionella protection cycles\u003c\/li\u003e\n\u003cli\u003eSlimline version (475mm Ø) available for space-restricted installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGledhill StainlessLite Plus HP 210L cylinder\u003c\/li\u003e\n\u003cli\u003e3kW immersion heater\u003c\/li\u003e\n\u003cli\u003eExpansion vessel\/wall mounting kit\u003c\/li\u003e\n\u003cli\u003ePRV combination\/expansion relief valve\u003c\/li\u003e\n\u003cli\u003ePressure \u0026amp; temperature relief valve\u003c\/li\u003e\n\u003cli\u003eDrain\/flexi\/90° elbow\u003c\/li\u003e\n\u003cli\u003eTundish\u003c\/li\u003e\n\u003cli\u003eControl thermostat\u003c\/li\u003e\n\u003cli\u003eUser\/installation guide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gledhill","offers":[{"title":"Default Title","offer_id":58017840693597,"sku":"PLUHP210","price":1170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/GledhillStainlessLitePlusHeatPumpCylinder.jpg?v=1753960510"},{"product_id":"gledhill-stainlesslite-plus-heat-pump-250l-cylinder","title":"Gledhill StainlessLite Plus Heat Pump 250L Cylinder","description":"\u003ch1\u003eGledhill StainlessLite Plus Heat Pump 250L Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eGledhill StainlessLite Plus Heat Pump 250L Cylinder\u003c\/strong\u003e is a high-quality unvented stainless steel hot water cylinder specifically engineered for use with air source and ground source heat pumps. It delivers mains pressure domestic hot water by efficiently transferring heat from the lower temperature output typical of heat pump systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Approximately 248–250 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable duplex stainless steel construction resistant to corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e High-efficiency multi-pass corrugated stainless steel coil designed to maximise heat transfer from heat pump flow temperatures around 50–60°C while minimising pressure loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3 kW Incoloy immersion heater with thermostat pocket for emergency or backup heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Height approx. 1744 mm, Diameter 550 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Empty weight approx. 42 kg (commonly reported, may vary by source)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Typically fitted with 50 mm HCFC-free insulation for reduced heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Compression fittings, pressure and temperature relief valve, 90° elbow for hot water draw-off, flexible hose for expansion vessel connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Notes:\u003c\/strong\u003e Features immersion heater thermostat control to activate backup heating below heat pump max temperature and cutoff at 60–65°C to reduce direct electricity use while preventing legionella risk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariants:\u003c\/strong\u003e Standard diameter and Slimline version (approx. 475 mm diameter) for restricted space installations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years manufacturer guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for residential or light commercial hot water systems using air or ground source heat pumps\u003c\/li\u003e\n\u003cli\u003eDesigned for systems requiring mains pressure domestic hot water with efficient low temperature heat transfer\u003c\/li\u003e\n\u003cli\u003eSuitable where heat pumps may not regularly raise stored water temperature to 60°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Code\u003c\/th\u003e\n\u003ctd\u003ePLUHP250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number (MPN)\u003c\/th\u003e\n\u003ctd\u003ePLUHP250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEAN\u003c\/th\u003e\n\u003ctd\u003eNot publicly listed - please confirm with supplier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003eApprox. 248–250 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1744 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e550 mm (standard); Slimline variant approx. 475 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (Empty)\u003c\/th\u003e\n\u003ctd\u003eApprox. 42 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat Loss\u003c\/th\u003e\n\u003ctd\u003eApprox. 74 watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater Power\u003c\/th\u003e\n\u003ctd\u003e3 kW Incoloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis cylinder provides a robust, energy-efficient solution designed for heat pump applications, combining Gledhill’s proven StainlessLite Plus unvented cylinder technology with heat pump optimised heat exchange and backup controls to ensure safe, reliable mains pressure hot water.\u003c\/p\u003e","brand":"Gledhill","offers":[{"title":"Default Title","offer_id":58017840988509,"sku":"PLUHP250","price":1200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/GledhillStainlessLitePlusHeatPumpCylinder.jpg?v=1753960510"},{"product_id":"gledhill-stainlesslite-plus-heat-pump-300l-cylinder","title":"Gledhill StainlessLite Plus Heat Pump 300L Cylinder","description":"\u003ch1\u003eGledhill StainlessLite Plus Heat Pump 300L Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eGledhill StainlessLite Plus Heat Pump 300L Cylinder\u003c\/strong\u003e is a high-quality, unvented stainless steel hot water cylinder specifically designed for use with air source and ground source heat pumps. It delivers mains pressure domestic hot water efficiently by maximizing heat transfer from the lower temperature output typical of heat pump systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e Approximately 300 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable duplex stainless steel construction resistant to corrosion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e High-efficiency multi-pass corrugated stainless steel coil designed to maximize heat transfer from heat pump flow temperatures around 50–60°C while minimizing pressure loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3 kW Incoloy immersion heater with thermostat pocket for emergency or backup heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Height approx. 1990 mm, Diameter 550 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 46.6 kg empty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Typically fitted with high density, HCFC-free Envirofoam insulation for reduced heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Compression fittings, pressure \u0026amp; temperature relief valve, 90° elbow for hot water draw-off, flexible hose for expansion vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP Rating:\u003c\/strong\u003e C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years manufacturer guarantee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Notes:\u003c\/strong\u003e Supports legionella risk prevention with immersion heater thermostat controls that activate backup heating below heat pump max temperature and switch off at 60–65°C, minimizing direct electricity use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariants:\u003c\/strong\u003e Standard and Slimline version available (Slimline model has reduced diameter around 475 mm for restricted space)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for residential and light commercial hot water systems using air source or ground source heat pumps\u003c\/li\u003e\n\u003cli\u003eDesigned for systems requiring mains pressure domestic hot water with efficient low temperature heat transfer\u003c\/li\u003e\n\u003cli\u003eSuitable for heat pump systems that may not regularly raise stored water temperature to 60°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Code\u003c\/th\u003e\n\u003ctd\u003ePLUHP300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEAN\u003c\/th\u003e\n\u003ctd\u003e5056188305685\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003eApprox. 300 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1990 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e550 mm (standard), Slimline approx. 475 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight (Empty)\u003c\/th\u003e\n\u003ctd\u003eApprox. 46.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeat Loss\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater Power\u003c\/th\u003e\n\u003ctd\u003e3 kW Incoloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eErP Rating\u003c\/th\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis cylinder offers a robust, efficient, and easy-to-install solution tailored for heat pump domestic hot water systems. It combines the trusted Gledhill StainlessLite Plus design with heat pump-optimized technology, ensuring energy savings and reliable mains pressure hot water supply.\u003c\/p\u003e","brand":"Gledhill","offers":[{"title":"Default Title","offer_id":58017841512797,"sku":"PLUHP300","price":1230.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/GledhillStainlessLitePlusHeatPumpCylinder.jpg?v=1753960510"},{"product_id":"flowcyl-170l-unvented-high-quality-stainless-steel-heat-pump-cylinder","title":"FlowCyl 170L Slimline Unvented High Quality Stainless Steel Heat Pump Cylinder","description":"\u003ch1\u003e170L Slimline Unvented High Quality Stainless Steel Heat Pump Cylinder - FlowCyl by UK Cylinders\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eFlowCyl Heat Pump Cylinder 170L\u003c\/strong\u003e by UK Cylinders is a premium unvented hot water cylinder designed specifically for use with air source and ground source heat pumps. Manufactured in the UK from high-grade duplex stainless steel, it offers superior corrosion resistance and durability for long-lasting, efficient hot water storage at mains pressure.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: 170 litres\u003c\/li\u003e\n\u003cli\u003eMaterial: High-grade Duplex Stainless Steel ensuring excellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003eHeat Exchanger: Market-leading, highly efficient primary coil with a multi-pass corrugated stainless steel design for rapid heat exchange from heat pumps operating at low flow temperatures (~50–60°C)\u003c\/li\u003e\n\u003cli\u003eImmersion Heater: Long-life 3 kW Incoloy immersion heater supplied as standard with thermostat pocket for backup heating\u003c\/li\u003e\n\u003cli\u003eInsulation: Fully insulated with 50mm thick 100% CFC and HCFC free polyurethane to minimize heat loss and improve energy efficiency\u003c\/li\u003e\n\u003cli\u003eDimensions: Approximately 1674 mm height x 475 mm diameter (slimline design optimized for easier installation in restricted spaces)\u003c\/li\u003e\n\u003cli\u003eWeight: Lightweight construction with a high-quality, 100% recyclable silver casing\u003c\/li\u003e\n\u003cli\u003eConnections: 28mm coil connections, 22mm hot and cold water connections, and a 12mm sensor pocket for heat pump controls\u003c\/li\u003e\n\u003cli\u003eSafety and Compliance: Supplied with all necessary safety controls as per UK Building Regulations for unvented cylinders\u003c\/li\u003e\n\u003cli\u003eClear Markings: All plumbing connections are clearly identified and embossed on the cylinder casing for easy installation\u003c\/li\u003e\n\u003cli\u003eWarranty: 25 years manufacturer-backed warranty on the cylinder and 2 years on parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed to meet the demanding requirements of heat pump hot water systems\u003c\/li\u003e\n\u003cli\u003eIdeal for residential and light commercial installations using air source or ground source heat pumps\u003c\/li\u003e\n\u003cli\u003eDesigned to supply efficient mains pressure domestic hot water even when heat pump flow temperatures are low\u003c\/li\u003e\n\u003cli\u003eSlimline design suitable for installation where space is limited\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003eFlowCyl Heat Pump Cylinder 170L (Slimline Model)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eUK Cylinders Ltd.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eDuplex Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e170 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1674 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e475 mm (Slimline)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsulation Thickness\u003c\/th\u003e\n\u003ctd\u003e50 mm Polyurethane (CFC and HCFC free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Connections\u003c\/th\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHot\/Cold Water Connections\u003c\/th\u003e\n\u003ctd\u003e22 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater Power\u003c\/th\u003e\n\u003ctd\u003e3 kW Incoloy (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor Pocket\u003c\/th\u003e\n\u003ctd\u003e12 mm diameter, suitable for heat pump controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStanding Heat Loss\u003c\/th\u003e\n\u003ctd\u003eApprox. 71 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e25 years on cylinder, 2 years on parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe FlowCyl 170L Heat Pump Cylinder is engineered for optimal performance with all heat pump brands, ensuring quick heat-up times and energy-efficient operation. Its durable stainless steel construction combined with thick insulation reduces heat loss and extends system longevity. Clear connection markings and included safety controls facilitate compliance and ease of installation.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote:\u003c\/em\u003e This product is supplied with a comprehensive manufacturer warranty and meets all relevant UK safety and building regulations for unvented cylinders designed for heat pump applications.\u003c\/p\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":58136387420509,"sku":"FCHPS3170","price":1220.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/170LUnventedSlimlineHighQualityStainlessSteelHeatPumpCylinder-FlowCylbyUKCylinders.jpg?v=1766120995"},{"product_id":"flowcyl-120l-unvented-high-quality-stainless-steel-heat-pump-cylinder","title":"FlowCyl 120L Unvented High Quality Stainless Steel Heat Pump Cylinder","description":"\u003ch1\u003e120L Unvented High Quality Stainless Steel Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003e120L Unvented Stainless Steel Cylinder\u003c\/strong\u003e is a durable and efficient hot water storage solution ideal for domestic and light commercial applications requiring mains pressure hot water. Manufactured from high-grade duplex stainless steel, this cylinder offers excellent corrosion resistance and long service life. It is designed to provide reliable hot water supply with low standing heat loss and comes with a comprehensive 25-year warranty.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 120 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade duplex stainless steel for superior corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (HxD):\u003c\/strong\u003e Approx. 888 mm height × 545 mm diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmpty Weight:\u003c\/strong\u003e Approx. 27.0 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Weight:\u003c\/strong\u003e Approx. 145.0 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Surface Area:\u003c\/strong\u003e 1.61 m² (if applicable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanding Heat Loss:\u003c\/strong\u003e Approximately 1.06 kWh per 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP Band:\u003c\/strong\u003e B (energy efficiency rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Typically includes 50 mm thick CFC and HCFC free insulation to minimise heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years manufacturer-backed guarantee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e Meets UK building regulations for unvented cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for use with heat pumps, boilers, or other heating systems requiring unvented pressurized hot water storage.\u003c\/li\u003e\n\u003cli\u003eConstructed to provide efficient heat retention and reliable water supply in various domestic heating setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003e120L Unvented Stainless Steel Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e120 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e888 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e545 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmpty Weight\u003c\/th\u003e\n\u003ctd\u003e27.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFull Weight\u003c\/th\u003e\n\u003ctd\u003eApprox. 145.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStanding Heat Loss\u003c\/th\u003e\n\u003ctd\u003e1.06 kWh\/24h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003e1.61 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e25 years manufacturer-backed guarantee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis high-quality 120L stainless steel cylinder is perfect for users needing reliable mains pressure hot water storage. Its robust construction, energy-efficient insulation, and comprehensive warranty provide confidence in long-term performance.\u003c\/p\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":58136398889309,"sku":"FCHPD3120","price":1030.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"flowcyl-200l-unvented-high-quality-stainless-steel-heat-pump-cylinder","title":"FlowCyl 200L Unvented High Quality Stainless Steel Heat Pump Cylinder","description":"\u003ch1\u003e200L Unvented High Quality Stainless Steel Heat Pump Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003e200L Unvented Stainless Steel Heat Pump Cylinder\u003c\/strong\u003e is a premium hot water storage solution specifically designed for use with air source and ground source heat pumps. Constructed from high-grade duplex 2304 stainless steel for superior corrosion resistance and durability, it delivers mains pressure domestic hot water efficiently, optimized for the lower temperature output typical of heat pumps.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 200 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 2304 Duplex Stainless Steel with excellent anti-corrosive properties\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e High-efficiency coils with 22mm compression fittings designed for rapid heat transfer and high flow rates up to 55 litres per minute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Tested to 15 bar, working pressure 3 bar, relief valve operates at 7 bar \/ 90-95°C for safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Height approx. 1120 mm, Diameter approx. 580 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories Included:\u003c\/strong\u003e Expansion vessel and kit, dual high limit stat, 3 kW immersion heater (240V single phase), temperature \u0026amp; pressure relief valve, 3 bar inlet control group, two-port motorized valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Rate:\u003c\/strong\u003e Suitable for demanding showers and hot water needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime warranty on cylinder (with annual servicing), 2 years warranty on parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Ideal for residential and light commercial systems using air or ground source heat pumps requiring mains pressure hot water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003e200L Indirect Telford Tempest Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e2304 Duplex Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003eApprox. 200 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e580 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaximum Pressure\u003c\/th\u003e\n\u003ctd\u003eTested to 15 bar, working pressure 3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003ctd\u003eUp to 55 litres per minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater\u003c\/th\u003e\n\u003ctd\u003e3 kW, 240 V single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003eLifetime warranty on cylinder (with annual servicing), 2 years on component parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis cylinder offers a robust, safe, and energy-efficient hot water solution optimized for heat pump systems. It features high flow rates suitable for modern domestic demands and includes all relevant safety components for peace of mind. Its corrosion-resistant stainless steel build and included accessories facilitate long-term durability and reliable performance in both residential and light commercial installations.\u003c\/p\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":58136413077853,"sku":"FCHPD3200","price":1190.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"flowcyl-300l-unvented-high-quality-stainless-steel-heat-pump-cylinder","title":"FlowCyl 300L Unvented High Quality Stainless Steel Heat Pump Cylinder","description":"\u003ch1\u003e300L Unvented High Quality Stainless Steel Heat Pump Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003e300L Unvented High Quality Stainless Steel Heat Pump Cylinder\u003c\/strong\u003e is a robust and efficient hot water storage solution specifically designed for air source and ground source heat pumps. Made from high-grade stainless steel, it provides mains pressure domestic hot water with excellent corrosion resistance and long service life. This cylinder maximizes heat transfer from the heat pump’s lower temperature output, ensuring reliable, energy-efficient performance.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 300 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-grade stainless steel for durability and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e Multi-pass corrugated stainless steel coil designed to optimize heat transfer from heat pump flow temperatures around 50–60°C while minimizing pressure loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3 kW Incoloy immersion heater with thermostat pocket for emergency or backup heating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Height approx. 1924 mm, Diameter 545 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 50 kg empty, 330 kg full\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Surface Area:\u003c\/strong\u003e 2.97 m²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanding Heat Loss:\u003c\/strong\u003e Approximately 2.26 kWh per 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Factory fitted insulation for reduced heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years manufacturer-backed guarantee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for heat pump systems requiring efficient mains pressure domestic hot water\u003c\/li\u003e\n\u003cli\u003eSuitable for residential and light commercial installations\u003c\/li\u003e\n\u003cli\u003eOptimized for heat pumps that operate at lower flow temperatures to maximize energy savings\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":58136427364701,"sku":"FCHPD3300","price":1345.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"flowcyl-400l-unvented-high-quality-stainless-steel-heat-pump-cylinder","title":"FlowCyl 400L Unvented High Quality Stainless Steel Heat Pump Cylinder","description":"\u003ch1\u003e400L Unvented High Quality Stainless Steel Heat Pump Cylinder\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003e400L Unvented Stainless Steel Heat Pump Cylinder\u003c\/strong\u003e is a premium hot water storage cylinder designed specifically for use with air source and ground source heat pumps. Manufactured from high-grade duplex stainless steel, it offers superior corrosion resistance, durability, and efficient heat transfer suitable for the lower temperature output of heat pump systems.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 400 litres\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality duplex stainless steel ensuring excellent corrosion resistance and long service life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Exchanger:\u003c\/strong\u003e Large multi-pass corrugated stainless steel coil with a surface area of approximately 2.97 m² for rapid and efficient heat transfer at heat pump flow temperatures around 50–60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion Heater:\u003c\/strong\u003e 3 kW Incoloy immersion heater with thermostat pocket for emergency or backup heating, supporting legionella control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (HxD):\u003c\/strong\u003e Approximately 1613 mm height × 690 mm diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Empty weight approx. 54.0 kg, full weight approx. 453.0 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Full 50 mm CFC \u0026amp; HCFC free polyurethane insulation to minimize heat loss\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanding Heat Loss:\u003c\/strong\u003e Around 2.20 kWh per 24 hours\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP Band:\u003c\/strong\u003e C (energy efficiency rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 25 years cylinder warranty and 2 years on parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e WRAS approved, includes 12 mm sensor probe pocket, compression fittings, expansion vessel, high limit stat, temperature \u0026amp; pressure relief valve, and 2 port motorized zone valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign Benefits:\u003c\/strong\u003e Optimized coil design reduces pressure loss while maximizing heat exchange; insulation maintains cylinder temperature efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for residential and light commercial installations using air source or ground source heat pumps\u003c\/li\u003e\n\u003cli\u003eDesigned to deliver mains pressure domestic hot water efficiently at lower heat pump temperatures\u003c\/li\u003e\n\u003cli\u003eSuitable for use where heat pumps may not regularly achieve high water temperatures, with backup heating for legionella risk management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel Name\u003c\/th\u003e\n\u003ctd\u003e400L Unvented Stainless Steel Heat Pump Cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eUK Cylinders Ltd.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer Part Number (MPN)\u003c\/th\u003e\n\u003ctd\u003eESHPD3400 \/ PLUHP400 (varies by supplier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003ctd\u003e400 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e1613 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e690 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmpty Weight\u003c\/th\u003e\n\u003ctd\u003e54.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFull Weight\u003c\/th\u003e\n\u003ctd\u003e453.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoil Surface Area\u003c\/th\u003e\n\u003ctd\u003eApprox. 2.97 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStanding Heat Loss\u003c\/th\u003e\n\u003ctd\u003e2.20 kWh\/24h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInsulation Thickness\u003c\/th\u003e\n\u003ctd\u003e50 mm polyurethane (100% CFC \u0026amp; HCFC free)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImmersion Heater Power\u003c\/th\u003e\n\u003ctd\u003e3 kW Incoloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eERP Rating\u003c\/th\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e25 years cylinder, 2 years parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis 400L stainless steel heat pump cylinder combines durable construction, energy-efficient insulation, and optimized coil design for excellent performance in modern heat pump domestic hot water systems. Its comprehensive standard components and long warranty provide peace of mind and ease of installation.\u003c\/p\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":58136437915997,"sku":"FCHPD4400","price":1995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"baxi-210l-air-source-heat-pump-cylinder","title":"Baxi 210L Air Source Heat Pump Cylinder","description":"\u003cdiv style=\"font-size: 16px; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif; color: #222; line-height: 1.55; max-width: 900px; margin: 0 auto;\"\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eThe \u003cstrong\u003eBaxi ASHP Cylinder\u003c\/strong\u003e is a duplex stainless steel unvented hot water cylinder engineered specifically for air source heat pump systems. Available in \u003cstrong\u003e210, 250 and 300 litre capacities\u003c\/strong\u003e, it features a \u003cstrong\u003ehigh-surface-area 'coil-in-coil' heat exchanger\u003c\/strong\u003e for exceptionally fast recovery and includes \u003cstrong\u003etwo 3 kW immersion heaters\u003c\/strong\u003e — a lower main element and an upper boost — to support the heat pump for continuous hot water and Legionella protection. Manufactured by \u003cstrong\u003eMegaflo and Heatrae Sadia\u003c\/strong\u003e, with \u003cstrong\u003e60 mm of high-efficiency PU insulation\u003c\/strong\u003e and supplied with a complete Immersion Heater Relay Kit for straightforward integration.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e2 + 3 m²\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eCoil-in-coil surface area\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e2 × 3 kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eDual immersion heaters\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e60 mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003ePU foam insulation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003eSec. return\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eAvailable on all sizes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f59e0b; padding: 14px 18px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #7a4d00; margin-bottom: 6px;\"\u003eCylinder only — designed for installer-built control schemes\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6; font-size: 14px;\"\u003eThis is the \u003cstrong\u003ecylinder vessel and immersion heater relay kit\u003c\/strong\u003e, intended for installations where the heating manifold, diverter valve and controls are designed and assembled separately by the installer. If you'd prefer an all-in-one solution with the diverter valve, expansion vessel and integrated controller already factory-fitted, look at the \u003cstrong\u003eBaxi ASHP Pre-plumbed Cylinder\u003c\/strong\u003e instead.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eEngineered for heat pumps\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eCoil-in-coil heat exchanger\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eA high-performance \u003cstrong\u003e'coil-in-coil' design\u003c\/strong\u003e delivers a large heat-transfer surface area in a compact footprint. The 250L and 300L models use a \u003cstrong\u003e3 m² coil\u003c\/strong\u003e; the 210L uses a 2 m² coil — both delivering \u003cstrong\u003eexceptionally fast recovery times\u003c\/strong\u003e from heat pump flow temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDual immersion heaters\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eA \u003cstrong\u003e3 kW lower immersion\u003c\/strong\u003e works with the heat pump for primary backup heating; a \u003cstrong\u003e3 kW upper immersion\u003c\/strong\u003e provides a high-temperature boost for fast top-up and the Legionella cycle. Total backup heating capacity is \u003cstrong\u003e6 kW\u003c\/strong\u003e when both elements run.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eImmersion Heater Relay Kit included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eEach cylinder ships with the Baxi \u003cstrong\u003eImmersion Heater Relay Kit\u003c\/strong\u003e — relay, relay box and \u003cstrong\u003eDHW temperature probe extension\u003c\/strong\u003e — so the immersion control logic and sensor wiring required to interface with the Baxi heat pump is included in the box.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDuplex stainless steel build\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eInner vessel manufactured by \u003cstrong\u003eMegaflo and Heatrae Sadia\u003c\/strong\u003e from corrosion-resistant duplex stainless steel for long, low-maintenance service life — the same proven build quality used across Baxi's residential cylinder range.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eSecondary return and 60 mm insulation\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eAll three capacities support a \u003cstrong\u003esecondary return circuit\u003c\/strong\u003e for properties with long pipe runs to outlets. \u003cstrong\u003e60 mm of PU foam\u003c\/strong\u003e keeps standing losses low — from \u003cstrong\u003e1.5 kWh\/24h on the 210L\u003c\/strong\u003e up to 2.05 kWh\/24h on the 300L.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eAir source heat pump compatibility\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eDesigned to pair with the full Baxi air source heat pump portfolio — the \u003cstrong\u003eHP40 standard-temperature monobloc\u003c\/strong\u003e, the \u003cstrong\u003eBaxi Assure HP50\u003c\/strong\u003e, the \u003cstrong\u003eHP55 high-temperature monobloc\u003c\/strong\u003e and the \u003cstrong\u003eHP60 high-temperature monobloc\u003c\/strong\u003e. The cylinder is also suitable for use with other heat pump brands when sized correctly: refer to the heat pump's specification sheet for required coil rating and flow rates. \u003cstrong\u003eFlow rates of up to 76 L\/min at 3 bar\u003c\/strong\u003e can be achieved when the cylinder is supplied with a 3.5 bar pressure-reducing valve and adequate cold mains supply.\u003c\/p\u003e\n\u003cdiv style=\"color: #005c54; font-size: 17px; font-weight: bold; margin: 18px 0 10px;\"\u003eSpecifications by capacity\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e210L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e250L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e300L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eProduct code\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837416\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837491\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837562\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eNominal capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e210 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e250 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e300 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStorage volume\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e209 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e246 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e287 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHot water at \u0026gt;40 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e204 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e242 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e289 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil heat-up time\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e21.5 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e22.8 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e27.8 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil surface area\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e33.2 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e36.8 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e35.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.5 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.78 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2.05 kWh\/24h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eEnergy efficiency class\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eB\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eExternal expansion vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e18 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e24 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e24 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1516 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1767 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2082 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (empty)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e46 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e54 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e62 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (full)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e255 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e300 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e349 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #005c54; font-size: 17px; font-weight: bold; margin: 18px 0 10px;\"\u003eCommon specifications (all capacities)\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600; width: 45%;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e579 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInsulation thickness\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e60 mm CFC\/HCFC-free PU foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eLower immersion heater\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eUpper immersion (boost)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eBoost immersion heat-up time\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e67 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eSecondary return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003eYes — supported on all sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eConnections\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3\/4\" BSP male flow \u0026amp; return · 22 mm \/ 3\/4\" BSP cold inlet · 22 mm \/ 3\/4\" BSP DHW outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInner vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003eDuplex stainless steel — by Megaflo \/ Heatrae Sadia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003eImmersion Heater Relay, Relay Box, DHW probe extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #666; margin-top: -6px; margin-bottom: 14px;\"\u003eCoil heat-up times measured at 15 L\/min. Cylinders tested in conformance to Annex A, BS EN 12897:2016. Energy efficiency class measured per European Commission regulations 814\/2013 and 812\/2013. Manufacturer warranty applies — see baxi.co.uk\/terms for details.\u003c\/div\u003e\n\u003cdiv style=\"background: #fef2f2; border-left: 4px solid #dc2626; padding: 14px 18px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #7f1d1d; margin-bottom: 6px;\"\u003eInstallation requirements\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6; font-size: 14px;\"\u003eInstallation, commissioning and annual servicing must be carried out by a \u003cstrong\u003ecompetent person\u003c\/strong\u003e — typically G3 unvented hot water qualified, and MCS registered for grant-funded heat pump installations. The unit must be installed in accordance with \u003cstrong\u003eBuilding Regulations Part G\u003c\/strong\u003e, BS EN 12897:2016 and the Baxi Installation \u0026amp; Service Manual. An \u003cstrong\u003eexternal expansion vessel\u003c\/strong\u003e (18 L on the 210L; 24 L on the 250L \/ 300L) and a 3.5 bar pressure-reducing valve are required and must be sized and fitted by the installer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eFrequently asked questions\u003c\/div\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eShould I choose the standard ASHP cylinder or the pre-plumbed version?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eChoose this \u003cstrong\u003estandard cylinder\u003c\/strong\u003e if you want flexibility to design and assemble your own heating manifold, diverter valve scheme and controls — common on bespoke or larger installations. Choose the \u003cstrong\u003eBaxi ASHP Pre-plumbed Cylinder\u003c\/strong\u003e if you want a faster, lower-labour install with the diverter valve, expansion vessel and integrated controller already factory-fitted. Both share the same duplex stainless steel inner vessel build.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat does the 'coil-in-coil' heat exchanger do?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eA coil-in-coil arrangement places a finer secondary coil inside a primary coil, which significantly \u003cstrong\u003eincreases heat-transfer surface area\u003c\/strong\u003e within a compact footprint. This matters for heat pumps because they deliver heat at lower flow temperatures than a gas boiler, so a large, efficient coil is essential to recover hot water in a reasonable time — the design here delivers \u003cstrong\u003erecovery times of 21–28 minutes\u003c\/strong\u003e depending on capacity.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhy does this cylinder have two immersion heaters?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe \u003cstrong\u003elower 3 kW immersion\u003c\/strong\u003e is positioned to heat the bulk of the cylinder volume, providing primary backup if the heat pump is unavailable. The \u003cstrong\u003eupper 3 kW boost immersion\u003c\/strong\u003e sits higher in the vessel and only heats the top portion — useful for a fast hot-water top-up and for running the high-temperature Legionella cycle without consuming as much energy as heating the whole tank. Together they offer \u003cstrong\u003eflexible backup heating\u003c\/strong\u003e tailored to the situation.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat size cylinder do I need?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eAs a guide: \u003cstrong\u003e210L\u003c\/strong\u003e matches a typical 3-bed, 1-bathroom home; \u003cstrong\u003e250L\u003c\/strong\u003e is a strong fit for a 3–4 bed property with two bathrooms; and \u003cstrong\u003e300L\u003c\/strong\u003e serves a 4-bed home with two or more bathrooms or an en-suite. For ASHP systems we recommend sizing slightly larger than you would for a gas boiler installation, because heat pumps reheat more slowly and benefit from drawing on a larger reservoir of pre-heated water.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat's included with the cylinder, and what do I need to source separately?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe cylinder ships with the \u003cstrong\u003eImmersion Heater Relay Kit\u003c\/strong\u003e (relay, relay box and DHW temperature probe extension) and both factory-fitted immersion heaters. You'll typically need to supply separately: an \u003cstrong\u003eexternal expansion vessel\u003c\/strong\u003e (18L for 210L cylinder; 24L for 250L\/300L), a \u003cstrong\u003e3.5 bar pressure-reducing valve\u003c\/strong\u003e, a 6 bar pressure relief valve, a tundish, a 3-port motorised diverter valve, the heat pump's room\/cylinder thermostat, and any zone valves or wiring centres needed for your control scheme.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Baxi","offers":[{"title":"Default Title","offer_id":62733952221533,"sku":"7837416","price":1900.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/BaxiAirSourceHeatPumpCylinder.png?v=1764223010"},{"product_id":"baxi-300l-air-source-heat-pump-cylinder","title":"Baxi 300L Air Source Heat Pump Cylinder","description":"\u003cdiv style=\"font-size: 16px; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif; color: #222; line-height: 1.55; max-width: 900px; margin: 0 auto;\"\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eThe \u003cstrong\u003eBaxi ASHP Cylinder\u003c\/strong\u003e is a duplex stainless steel unvented hot water cylinder engineered specifically for air source heat pump systems. Available in \u003cstrong\u003e210, 250 and 300 litre capacities\u003c\/strong\u003e, it features a \u003cstrong\u003ehigh-surface-area 'coil-in-coil' heat exchanger\u003c\/strong\u003e for exceptionally fast recovery and includes \u003cstrong\u003etwo 3 kW immersion heaters\u003c\/strong\u003e — a lower main element and an upper boost — to support the heat pump for continuous hot water and Legionella protection. Manufactured by \u003cstrong\u003eMegaflo and Heatrae Sadia\u003c\/strong\u003e, with \u003cstrong\u003e60 mm of high-efficiency PU insulation\u003c\/strong\u003e and supplied with a complete Immersion Heater Relay Kit for straightforward integration.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e2 + 3 m²\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eCoil-in-coil surface area\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e2 × 3 kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eDual immersion heaters\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e60 mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003ePU foam insulation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003eSec. return\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eAvailable on all sizes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f59e0b; padding: 14px 18px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #7a4d00; margin-bottom: 6px;\"\u003eCylinder only — designed for installer-built control schemes\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6; font-size: 14px;\"\u003eThis is the \u003cstrong\u003ecylinder vessel and immersion heater relay kit\u003c\/strong\u003e, intended for installations where the heating manifold, diverter valve and controls are designed and assembled separately by the installer. If you'd prefer an all-in-one solution with the diverter valve, expansion vessel and integrated controller already factory-fitted, look at the \u003cstrong\u003eBaxi ASHP Pre-plumbed Cylinder\u003c\/strong\u003e instead.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eEngineered for heat pumps\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eCoil-in-coil heat exchanger\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eA high-performance \u003cstrong\u003e'coil-in-coil' design\u003c\/strong\u003e delivers a large heat-transfer surface area in a compact footprint. The 250L and 300L models use a \u003cstrong\u003e3 m² coil\u003c\/strong\u003e; the 210L uses a 2 m² coil — both delivering \u003cstrong\u003eexceptionally fast recovery times\u003c\/strong\u003e from heat pump flow temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDual immersion heaters\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eA \u003cstrong\u003e3 kW lower immersion\u003c\/strong\u003e works with the heat pump for primary backup heating; a \u003cstrong\u003e3 kW upper immersion\u003c\/strong\u003e provides a high-temperature boost for fast top-up and the Legionella cycle. Total backup heating capacity is \u003cstrong\u003e6 kW\u003c\/strong\u003e when both elements run.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eImmersion Heater Relay Kit included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eEach cylinder ships with the Baxi \u003cstrong\u003eImmersion Heater Relay Kit\u003c\/strong\u003e — relay, relay box and \u003cstrong\u003eDHW temperature probe extension\u003c\/strong\u003e — so the immersion control logic and sensor wiring required to interface with the Baxi heat pump is included in the box.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDuplex stainless steel build\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eInner vessel manufactured by \u003cstrong\u003eMegaflo and Heatrae Sadia\u003c\/strong\u003e from corrosion-resistant duplex stainless steel for long, low-maintenance service life — the same proven build quality used across Baxi's residential cylinder range.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eSecondary return and 60 mm insulation\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eAll three capacities support a \u003cstrong\u003esecondary return circuit\u003c\/strong\u003e for properties with long pipe runs to outlets. \u003cstrong\u003e60 mm of PU foam\u003c\/strong\u003e keeps standing losses low — from \u003cstrong\u003e1.5 kWh\/24h on the 210L\u003c\/strong\u003e up to 2.05 kWh\/24h on the 300L.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eAir source heat pump compatibility\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eDesigned to pair with the full Baxi air source heat pump portfolio — the \u003cstrong\u003eHP40 standard-temperature monobloc\u003c\/strong\u003e, the \u003cstrong\u003eBaxi Assure HP50\u003c\/strong\u003e, the \u003cstrong\u003eHP55 high-temperature monobloc\u003c\/strong\u003e and the \u003cstrong\u003eHP60 high-temperature monobloc\u003c\/strong\u003e. The cylinder is also suitable for use with other heat pump brands when sized correctly: refer to the heat pump's specification sheet for required coil rating and flow rates. \u003cstrong\u003eFlow rates of up to 76 L\/min at 3 bar\u003c\/strong\u003e can be achieved when the cylinder is supplied with a 3.5 bar pressure-reducing valve and adequate cold mains supply.\u003c\/p\u003e\n\u003cdiv style=\"color: #005c54; font-size: 17px; font-weight: bold; margin: 18px 0 10px;\"\u003eSpecifications by capacity\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e210L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e250L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e300L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eProduct code\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837416\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837491\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7837562\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eNominal capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e210 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e250 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e300 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStorage volume\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e209 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e246 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e287 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHot water at \u0026gt;40 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e204 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e242 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e289 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil heat-up time\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e21.5 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e22.8 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e27.8 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil surface area\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e33.2 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e36.8 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e35.5 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.5 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.78 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2.05 kWh\/24h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eEnergy efficiency class\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eB\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eExternal expansion vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e18 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e24 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e24 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1516 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1767 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2082 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (empty)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e46 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e54 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e62 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (full)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e255 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e300 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e349 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #005c54; font-size: 17px; font-weight: bold; margin: 18px 0 10px;\"\u003eCommon specifications (all capacities)\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600; width: 45%;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e579 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInsulation thickness\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e60 mm CFC\/HCFC-free PU foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eLower immersion heater\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eUpper immersion (boost)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e3 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eBoost immersion heat-up time\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e67 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eSecondary return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003eYes — supported on all sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eConnections\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3\/4\" BSP male flow \u0026amp; return · 22 mm \/ 3\/4\" BSP cold inlet · 22 mm \/ 3\/4\" BSP DHW outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInner vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003eDuplex stainless steel — by Megaflo \/ Heatrae Sadia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eIncluded accessories\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003eImmersion Heater Relay, Relay Box, DHW probe extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #666; margin-top: -6px; margin-bottom: 14px;\"\u003eCoil heat-up times measured at 15 L\/min. Cylinders tested in conformance to Annex A, BS EN 12897:2016. Energy efficiency class measured per European Commission regulations 814\/2013 and 812\/2013. Manufacturer warranty applies — see baxi.co.uk\/terms for details.\u003c\/div\u003e\n\u003cdiv style=\"background: #fef2f2; border-left: 4px solid #dc2626; padding: 14px 18px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #7f1d1d; margin-bottom: 6px;\"\u003eInstallation requirements\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6; font-size: 14px;\"\u003eInstallation, commissioning and annual servicing must be carried out by a \u003cstrong\u003ecompetent person\u003c\/strong\u003e — typically G3 unvented hot water qualified, and MCS registered for grant-funded heat pump installations. The unit must be installed in accordance with \u003cstrong\u003eBuilding Regulations Part G\u003c\/strong\u003e, BS EN 12897:2016 and the Baxi Installation \u0026amp; Service Manual. An \u003cstrong\u003eexternal expansion vessel\u003c\/strong\u003e (18 L on the 210L; 24 L on the 250L \/ 300L) and a 3.5 bar pressure-reducing valve are required and must be sized and fitted by the installer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eFrequently asked questions\u003c\/div\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eShould I choose the standard ASHP cylinder or the pre-plumbed version?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eChoose this \u003cstrong\u003estandard cylinder\u003c\/strong\u003e if you want flexibility to design and assemble your own heating manifold, diverter valve scheme and controls — common on bespoke or larger installations. Choose the \u003cstrong\u003eBaxi ASHP Pre-plumbed Cylinder\u003c\/strong\u003e if you want a faster, lower-labour install with the diverter valve, expansion vessel and integrated controller already factory-fitted. Both share the same duplex stainless steel inner vessel build.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat does the 'coil-in-coil' heat exchanger do?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eA coil-in-coil arrangement places a finer secondary coil inside a primary coil, which significantly \u003cstrong\u003eincreases heat-transfer surface area\u003c\/strong\u003e within a compact footprint. This matters for heat pumps because they deliver heat at lower flow temperatures than a gas boiler, so a large, efficient coil is essential to recover hot water in a reasonable time — the design here delivers \u003cstrong\u003erecovery times of 21–28 minutes\u003c\/strong\u003e depending on capacity.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhy does this cylinder have two immersion heaters?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe \u003cstrong\u003elower 3 kW immersion\u003c\/strong\u003e is positioned to heat the bulk of the cylinder volume, providing primary backup if the heat pump is unavailable. The \u003cstrong\u003eupper 3 kW boost immersion\u003c\/strong\u003e sits higher in the vessel and only heats the top portion — useful for a fast hot-water top-up and for running the high-temperature Legionella cycle without consuming as much energy as heating the whole tank. Together they offer \u003cstrong\u003eflexible backup heating\u003c\/strong\u003e tailored to the situation.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat size cylinder do I need?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eAs a guide: \u003cstrong\u003e210L\u003c\/strong\u003e matches a typical 3-bed, 1-bathroom home; \u003cstrong\u003e250L\u003c\/strong\u003e is a strong fit for a 3–4 bed property with two bathrooms; and \u003cstrong\u003e300L\u003c\/strong\u003e serves a 4-bed home with two or more bathrooms or an en-suite. For ASHP systems we recommend sizing slightly larger than you would for a gas boiler installation, because heat pumps reheat more slowly and benefit from drawing on a larger reservoir of pre-heated water.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat's included with the cylinder, and what do I need to source separately?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe cylinder ships with the \u003cstrong\u003eImmersion Heater Relay Kit\u003c\/strong\u003e (relay, relay box and DHW temperature probe extension) and both factory-fitted immersion heaters. You'll typically need to supply separately: an \u003cstrong\u003eexternal expansion vessel\u003c\/strong\u003e (18L for 210L cylinder; 24L for 250L\/300L), a \u003cstrong\u003e3.5 bar pressure-reducing valve\u003c\/strong\u003e, a 6 bar pressure relief valve, a tundish, a 3-port motorised diverter valve, the heat pump's room\/cylinder thermostat, and any zone valves or wiring centres needed for your control scheme.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Baxi","offers":[{"title":"Default Title","offer_id":62733958054237,"sku":"7837562","price":1990.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/BaxiAirSourceHeatPumpCylinder.png?v=1764223010"},{"product_id":"vaillant-unistor-heat-pump-cylinders","title":"Vaillant uniSTOR Heat Pump Cylinders","description":"\u003cp\u003eThe \u003cstrong\u003eVaillant uniSTOR Heat Pump Cylinder\u003c\/strong\u003e range is designed to work seamlessly with Vaillant heat pumps, offering highly efficient hot water storage with large surface area and smooth coil design for optimal heat transfer. Available in pre-plumbed and standard versions, capacities range from 150L to 300L with models suitable for many property sizes.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapacities: 150L, 200L, 250L, 300L (pre-plumbed available for 150-300L)\u003c\/li\u003e\n\u003cli\u003eDurable, 100% recyclable stainless steel inner cylinder with ultra-hard-wearing outer shell\u003c\/li\u003e\n\u003cli\u003eThermal injected polyurethane insulation for low heat loss and environmental friendliness (GWP \u0026lt; 5)\u003c\/li\u003e\n\u003cli\u003eLarge diameter, smooth bore coil enhances heat transfer and reduces scaling\u003c\/li\u003e\n\u003cli\u003ePre-plumbed models include expansion vessel, sensor pockets, three-way valve and mounting plate for controls\u003c\/li\u003e\n\u003cli\u003eOptimized for Vaillant heat pumps to ensure maximum efficiency and lower running costs\u003c\/li\u003e\n\u003cli\u003e25-year cylinder tank warranty with reliable long-term performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications \u0026amp; Model Numbers\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; height: 117.563px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.8953%; height: 19.5938px;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"width: 72.7437%; height: 19.5938px;\"\u003eType\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.8953%; height: 19.5938px;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"width: 72.7437%; height: 19.5938px;\"\u003eStandard \u0026amp; Pre-plumbed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.8953%; height: 19.5938px;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"width: 72.7437%; height: 19.5938px;\"\u003eStandard \u0026amp; Pre-plumbed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.8953%; height: 19.5938px;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"width: 72.7437%; height: 19.5938px;\"\u003eStandard \u0026amp; Pre-plumbed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.8953%; height: 19.5938px;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"width: 72.7437%; height: 19.5938px;\"\u003eStandard \u0026amp; Pre-plumbed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhy Buy\u003c\/h2\u003e\n\u003cp\u003eVaillant uniSTOR heat pump cylinders combine advanced stainless steel construction with innovative coil design for high efficiency and durable hot water solutions. The pre-plumbed options simplify installation, while superior insulation and environmental considerations reduce heat loss and energy bills.\u003c\/p\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMedium to large homes using Vaillant heat pumps\u003c\/li\u003e\n\u003cli\u003eInstallations requiring efficient, pre-plumbed hot water cylinders\u003c\/li\u003e\n\u003cli\u003eProperties aiming for sustainable, low heat loss water storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose Vaillant uniSTOR heat pump cylinders for reliable, efficient hot water storage optimized for heat pump systems with extended warranties.\u003c\/p\u003e","brand":"Vaillant","offers":[{"title":"150L Standard Heat Pump Cylinder","offer_id":62741829157213,"sku":"20235271","price":1150.0,"currency_code":"GBP","in_stock":true},{"title":"250L Standard  Heat Pump Cylinder","offer_id":62741790523741,"sku":"20235273","price":1470.0,"currency_code":"GBP","in_stock":true},{"title":"300L Standard  Heat Pump Cylinder","offer_id":62741790556509,"sku":"20235274","price":1570.0,"currency_code":"GBP","in_stock":true},{"title":"150L Heat Pump Pre-Plumbed Cylinder","offer_id":62741829189981,"sku":"20237129","price":1530.0,"currency_code":"GBP","in_stock":true},{"title":"200L Heat Pump Pre-Plumbed Cylinder","offer_id":62741790589277,"sku":"20237130","price":1690.0,"currency_code":"GBP","in_stock":true},{"title":"250L Heat Pump Pre-Plumbed Cylinder","offer_id":62741790622045,"sku":"20237131","price":1800.0,"currency_code":"GBP","in_stock":true},{"title":"300L Heat Pump Pre-Plumbed Cylinder","offer_id":62741829222749,"sku":"20237132","price":1975.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/VaillantuniSTORUnventedHotWaterCylinder.jpg?v=1764322142"},{"product_id":"oso-delta-geocoil-dgc200-200l-heat-pump-cylinder","title":"OSO Delta GeoCoil DGC200 200L Heat Pump Cylinder","description":"\u003cdiv style=\"font-family:Arial,sans-serif;font-size:16px;color:#222;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eOSO Delta GeoCoil DGC200\u003c\/strong\u003e is a \u003cstrong\u003e200-litre ErP A-rated heat pump cylinder\u003c\/strong\u003e built to squeeze every last unit of efficiency from your heat pump installation. The only heat pump cylinder in its class to achieve an \u003cstrong\u003eErP \"A\" rating at 200 litres\u003c\/strong\u003e, it combines OSO's award-winning \u003cstrong\u003eVacuum Insulation Panels\u003c\/strong\u003e with a \u003cstrong\u003e2.6m² tube heat exchanger\u003c\/strong\u003e optimised for low-temperature heat pump operation up to \u003cstrong\u003e15kW\u003c\/strong\u003e. With a standing heat loss of just \u003cstrong\u003e1.08 kWh per day\u003c\/strong\u003e, the DGC200 saves around \u003cstrong\u003e400 kWh annually\u003c\/strong\u003e compared to standard glass-wool insulated cylinders — energy savings that accumulate over the cylinder's 25-year warranted lifespan.\u003c\/p\u003e\n\n  \u003c!-- Stat Strip --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:24px 0;\"\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e200L\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eStorage Volume\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003eErP A\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eEnergy Rating\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e15kW\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eMax Heat Pump Input\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e2.6m²\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eHX Surface Area\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e25 yr\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eTank Warranty\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Callout: ErP A unique at 200L --\u003e\n  \u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377CF;border-radius:6px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cstrong style=\"color:#005c54;\"\u003eOnly ErP \"A\" Rated Heat Pump Cylinder at 200L\u003c\/strong\u003e\u003cbr\u003e\n    OSO is one of the only manufacturers to have achieved an \u003cstrong\u003eErP \"A\" rating at 200 litres\u003c\/strong\u003e in a heat pump cylinder. This is critical for housebuilders and developers under Part L pressure, and for homeowners wanting to achieve the highest possible EPC rating alongside a heat pump system.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature Cards --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:28px 0 14px;font-size:17px;font-weight:700;\"\u003eKey Features\u003c\/div\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:28px;\"\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🌡️ VIP Vacuum Insulation Panels\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eOSO's \u003cstrong\u003eaward-winning Vacuum Insulation Panels\u003c\/strong\u003e (H\u0026amp;V News Product of the Year) reduce heat conduction to an absolute minimum. Combined with NANOPUR foam, standing heat loss is just \u003cstrong\u003e49W \/ 1.08 kWh per day\u003c\/strong\u003e — the best in class at this capacity.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e♨️ 2.6m² Tube Heat Exchanger\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe \u003cstrong\u003e2.6m² smooth tube heat exchanger\u003c\/strong\u003e is engineered for heat pump primary circuits, providing excellent heat transfer at low flow temperatures without the performance compromise of a smaller coil — vital for maximising COP.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e⚡ INCOTEC Electric Backup\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eA \u003cstrong\u003e3kW INCOTEC immersion heater\u003c\/strong\u003e at the bottom of the tank provides peak-load backup for the heat pump and enables regular \u003cstrong\u003elegionella pasteurisation\u003c\/strong\u003e at temperatures above 60°C — controlled externally via the building management or heating controller.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🔒 ULTRAWELD Stainless Steel Tank\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe \u003cstrong\u003e1.3mm thick stainless steel inner vessel\u003c\/strong\u003e is fabricated using OSO's ULTRAWELD process — delivering superior weld quality and long-term corrosion resistance. Backed by a \u003cstrong\u003e25-year tank warranty\u003c\/strong\u003e across all UK water hardness zones.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🔗 Full G3 Kit Included\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eSupplied with a \u003cstrong\u003ecomplete G3 unvented kit\u003c\/strong\u003e: Honeywell motorised valve, electronic dual cylinder thermostat, T\u0026amp;P relief valve (10 bar \/ 90–95°C), strainer, PRV, expansion relief, drain cock, tundish, and expansion vessel (12–24L). Ready for S or Y plan systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🌡️ Dual Sensor Pockets\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eTwo \u003cstrong\u003e6\/8mm sensor pockets\u003c\/strong\u003e allow precise integration of heat pump temperature probes for controller-managed heating — compatible with sensors from all major heat pump manufacturers including Vaillant, Viessmann, Daikin, Mitsubishi, and Samsung.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e📊 SAP \u0026amp; Part L Support\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe DGC200's \u003cstrong\u003eErP A rating and low heat loss\u003c\/strong\u003e support improved SAP scores and EPC ratings — helping housebuilders demonstrate Part L compliance on new build and deep retrofit projects connected to a heat pump primary source.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e📏 Smooth Limescale-Resistant Coil\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe tube heat exchanger has a \u003cstrong\u003esmooth internal surface\u003c\/strong\u003e that discourages limescale adhesion — essential for maintaining long-term heat transfer efficiency, especially in hard water regions without a water softener.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- Red Installer Callout --\u003e\n  \u003cdiv style=\"background:#fff5f5;border-left:4px solid #c0392b;border-radius:6px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cstrong style=\"color:#c0392b;\"\u003e⚠️ G3 Unvented Installation Required\u003c\/strong\u003e\u003cbr\u003e\n    Must be installed by a \u003cstrong\u003eG3 registered competent engineer\u003c\/strong\u003e. All work must comply with Building Regulation G3 and Water Regulations. The immersion heater must be \u003cstrong\u003econtrolled externally\u003c\/strong\u003e — it must not be wired for independent operation without heat pump controller supervision. See the installation manual for full wiring and commissioning instructions.\n  \u003c\/div\u003e\n\n  \u003c!-- Spec Table --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:28px 0 14px;font-size:17px;font-weight:700;\"\u003eTechnical Specifications\u003c\/div\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;\"\u003e\n    \u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n      \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eModel \/ Product No.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eDGC 200 — OSO 11009121\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStorage Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e191 litres (nominal 200L)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e595 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e1,270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight Empty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e43 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight Full\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e237 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eHeat Exchanger Surface Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e2.6 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eMax Heat Pump Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e15 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eImmersion Heater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e3 kW INCOTEC \/ 1 × 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eThermostat Set Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e60°C (adjustable 20–70°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStanding Heat Loss\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e49W \/ 1.08 kWh per day (EN 12897)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eErP Energy Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eT\u0026amp;P Relief Valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e10 bar \/ 90–95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eSensor Pockets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e2 × 6\/8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eExpansion Vessel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e12–24L supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eAppliance Feet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eAdjustable 0–40mm, factory fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eTank Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e25 years (stainless steel inner vessel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:32px 0 14px;font-size:17px;font-weight:700;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eIs the DGC200 suitable for air source heat pumps as well as ground source?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eYes — despite the \"Geo\" name, the DGC200 is suitable for \u003cstrong\u003eall heat pump types\u003c\/strong\u003e including air source (ASHP), ground source (GSHP), and water source heat pumps. The 2.6m² heat exchanger is designed to work efficiently at the lower primary flow temperatures produced by both ASHP and GSHP systems.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eIs 200L sufficient for a typical family home with a heat pump?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eThe DGC200 is suited to \u003cstrong\u003e3–4 person households\u003c\/strong\u003e with average hot water demand. Because heat pumps heat water more slowly than gas boilers, a slightly larger buffer volume helps avoid morning peak issues. For larger households, consider the \u003cstrong\u003eDGC300\u003c\/strong\u003e. OSO's online water calculator can help size the correct cylinder for your specific usage patterns.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhy must the immersion heater be controlled externally?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eIn a heat pump system, the immersion heater must be \u003cstrong\u003emanaged by the heat pump controller or building management system\u003c\/strong\u003e — not simply switched on by an occupant. Unmanaged use of the immersion would circumvent the heat pump entirely, wasting energy. The controller ensures the immersion only operates for legionella cycles or as peak backup when the heat pump is insufficient.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat is ULTRAWELD and why does it matter?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eULTRAWELD is OSO's \u003cstrong\u003eproprietary stainless steel welding technology\u003c\/strong\u003e that creates stronger, smoother welds throughout the inner tank. Smoother welds are less prone to crevice corrosion and limescale adhesion at stress points — the main failure modes in stainless steel cylinders. This is why OSO can offer a genuine \u003cstrong\u003e25-year warranty\u003c\/strong\u003e on the inner vessel.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eDoes the DGC200 qualify for the Boiler Upgrade Scheme (BUS)?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eThe BUS grant applies to the \u003cstrong\u003eheat pump unit\u003c\/strong\u003e, not the cylinder. However, a correctly specified cylinder — such as the DGC200 — is a \u003cstrong\u003erequired component\u003c\/strong\u003e of any BUS-funded heat pump installation. A properly sized, heat-pump-optimised cylinder is often required by the heat pump manufacturer to validate their product warranty and MCS compliance.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":62784994574685,"sku":"DGC200","price":1570.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OsoDeltaGeoCoilDGCHeatPumpCylinder.jpg?v=1764833152"},{"product_id":"oso-delta-geocoil-dgc300-300l-heat-pump-cylinder","title":"OSO Delta GeoCoil DGC300 300L Heat Pump Cylinder","description":"\u003cdiv style=\"font-family:Arial,sans-serif;font-size:16px;color:#222;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n  \u003cp\u003eThe \u003cstrong\u003eOSO Delta GeoCoil DGC300\u003c\/strong\u003e is a \u003cstrong\u003e300-litre ErP A-rated heat pump cylinder\u003c\/strong\u003e — the most energy-efficient unvented hot water cylinder OSO produces. Featuring their award-winning \u003cstrong\u003eVacuum Insulation Panels (VIP) and NANOPUR insulation\u003c\/strong\u003e, it saves approximately \u003cstrong\u003e400 kWh per year\u003c\/strong\u003e in heat loss compared to glass-wool insulated products — enough energy savings over its lifetime to offset the entire cost of the cylinder. Designed around a massive \u003cstrong\u003e3.1m² tube heat exchanger\u003c\/strong\u003e, the DGC300 extracts heat from pumps up to \u003cstrong\u003e18kW\u003c\/strong\u003e with exceptional efficiency, while the INCOTEC immersion heater provides electric backup and legionella protection at all times.\u003c\/p\u003e\n\n  \u003c!-- Stat Strip --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:24px 0;\"\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e300L\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eStorage Volume\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003eErP A\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eEnergy Rating\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e18kW\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eMax Heat Pump Input\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e3.1m²\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eHX Surface Area\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:120px;background:#008377CF;color:#fff;border-radius:8px;padding:16px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:26px;font-weight:700;\"\u003e25 yr\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eTank Warranty\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Callout: ErP A --\u003e\n  \u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377CF;border-radius:6px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cstrong style=\"color:#005c54;\"\u003eOnly ErP \"A\" Rated Heat Pump Cylinder at 300L\u003c\/strong\u003e\u003cbr\u003e\n    The OSO Delta GeoCoil DGC300 is among a very select group of cylinders to achieve an \u003cstrong\u003eErP \"A\" energy rating at 300 litres\u003c\/strong\u003e. This is made possible by the combination of Vacuum Insulation Panels and NANOPUR foam — reducing standing heat loss to just \u003cstrong\u003e1.18 kWh per day\u003c\/strong\u003e. The result: lower running costs and improved SAP\/EPC scores.\n  \u003c\/div\u003e\n\n  \u003c!-- Feature Cards --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:28px 0 14px;font-size:17px;font-weight:700;\"\u003eKey Features\u003c\/div\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:28px;\"\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🌡️ VIP Vacuum Insulation Panels\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eOSO's unique \u003cstrong\u003eVacuum Insulation Panels (VIP)\u003c\/strong\u003e — an innovation that won the H\u0026amp;V News Product of the Year award — eliminate heat conduction through the insulation layer, achieving a standing heat loss of just \u003cstrong\u003e49W\u003c\/strong\u003e. This saves approximately 400 kWh per year vs glass-wool alternatives.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e♨️ 3.1m² Tube Heat Exchanger\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe \u003cstrong\u003elarge-surface tube heat exchanger (3.1m²)\u003c\/strong\u003e is specifically designed for heat pump operation, extracting heat efficiently from refrigerant at low primary temperatures — essential for maximising heat pump COP and overall system performance.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e⚡ INCOTEC Immersion Backup\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eAn \u003cstrong\u003eultra-grade INCOTEC 3kW immersion heater\u003c\/strong\u003e sits above the heating coil, providing electric backup when the heat pump cannot meet demand. It also enables \u003cstrong\u003eregular legionella pasteurisation cycles\u003c\/strong\u003e at temperatures above 60°C, as required by health regulations.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🔒 ULTRAWELD Stainless Construction\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe inner tank is fabricated using OSO's \u003cstrong\u003eULTRAWELD welding process\u003c\/strong\u003e, delivering superior corrosion resistance in all UK water hardness zones. Combined with the 1.3mm thick stainless steel construction, this underpins the \u003cstrong\u003e25-year tank warranty\u003c\/strong\u003e.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🔗 S \u0026amp; Y Plan Compatible\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eShips with a \u003cstrong\u003eHoneywell motorised valve\u003c\/strong\u003e, electronic dual cylinder thermostat, T\u0026amp;P relief valve (10 bar \/ 90–95°C), full G3 kit, adjustable expansion vessel (12–24L), and factory-fitted adjustable feet. Compatible with both \u003cstrong\u003eS-plan and Y-plan\u003c\/strong\u003e systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e📊 Smooth Scale-Resistant Coil\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe \u003cstrong\u003esmooth-surface tube heat exchanger\u003c\/strong\u003e resists limescale adhesion, maintaining heat transfer efficiency over the long term without the maintenance burden of a corrugated coil — particularly important in hard water areas.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🏗️ SAP Compliance Support\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe DGC300's \u003cstrong\u003eErP A rating and low heat loss figures\u003c\/strong\u003e are specifically valued by housebuilders and developers aiming to meet Part L and SAP energy requirements. The cylinder is cited in OSO's SAP support documentation.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:18px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#005c54;margin-bottom:6px;\"\u003e🌡️ Dual Sensor Pockets\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eFitted with \u003cstrong\u003etwo sensor pockets (6\/8mm)\u003c\/strong\u003e for heat pump controller temperature probes, plus an adjustable digital thermostat (20–70°C, preset 60°C) — enabling precise integration with heat pump control systems from all major manufacturers.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- Red Installer Callout --\u003e\n  \u003cdiv style=\"background:#fff5f5;border-left:4px solid #c0392b;border-radius:6px;padding:16px 20px;margin:20px 0;\"\u003e\n    \u003cstrong style=\"color:#c0392b;\"\u003e⚠️ G3 Unvented Installation Required\u003c\/strong\u003e\u003cbr\u003e\n    This is an \u003cstrong\u003eunvented hot water cylinder\u003c\/strong\u003e. Installation must be carried out by a \u003cstrong\u003eG3 registered engineer\u003c\/strong\u003e (e.g. registered with CIPHE, APHC, or an equivalent Competent Persons Scheme). All work must comply with Building Regulation G3. The immersion heater must be controlled externally — consult the installation manual for wiring details.\n  \u003c\/div\u003e\n\n  \u003c!-- Spec Table --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:28px 0 14px;font-size:17px;font-weight:700;\"\u003eTechnical Specifications\u003c\/div\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;\"\u003e\n    \u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n      \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n      \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eValue\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eModel \/ Product No.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eDGC 300 — OSO 11009123\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStorage Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e279 litres (nominal 300L)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e595 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e1,750 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight Empty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e63 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eWeight Full\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e340 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eHeat Exchanger Surface Area\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e3.1 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eMax Heat Pump Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e18 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eImmersion Heater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e3 kW INCOTEC \/ 1 × 240V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eThermostat Set Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e60°C (adjustable 20–70°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eStanding Heat Loss\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e49W \/ 1.18 kWh per day (EN 12897)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eErP Energy Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eT\u0026amp;P Relief Valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e10 bar \/ 90–95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eSensor Pockets\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e2 × 6\/8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eExpansion Vessel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e12–24L supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003e\u003cstrong\u003eAppliance Feet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;border-bottom:1px solid #c8e6e3;\"\u003eAdjustable 0–40mm, factory fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eTank Warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e25 years (stainless steel inner vessel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:6px;margin:32px 0 14px;font-size:17px;font-weight:700;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhy is a large heat exchanger so important for heat pump cylinders?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eHeat pumps operate most efficiently at \u003cstrong\u003elower primary flow temperatures\u003c\/strong\u003e (e.g. 45–55°C). A large heat exchanger surface area — like the DGC300's 3.1m² — maximises heat transfer at these lower temperatures, reducing the need for the heat pump to reach higher temperatures. This directly improves the system COP and reduces running costs.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eCan the DGC300 also be used with a gas or oil boiler?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eYes. While optimised for heat pumps, the DGC300 is fully compatible with \u003cstrong\u003egas and oil boilers\u003c\/strong\u003e connected via the primary coil — including as a future-proof option during a phased transition from gas. The INCOTEC immersion also provides all-electric backup independently.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eHow does the DGC300 achieve an ErP A rating at 300 litres?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eThe ErP A rating results from the combination of \u003cstrong\u003eVacuum Insulation Panels (VIP)\u003c\/strong\u003e and \u003cstrong\u003eNANOPUR polyurethane foam\u003c\/strong\u003e. VIPs eliminate heat conduction through the insulation, achieving thermal resistance far beyond conventional foam alone. At 300L, the DGC300 stands out as one of very few cylinders to achieve the A rating in this size class.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat does INCOTEC mean and why does it matter in hard water?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eINCOTEC is OSO's proprietary immersion heater technology with \u003cstrong\u003eenhanced anti-limescale properties\u003c\/strong\u003e and superior durability in hard and chlorinated water conditions. Compared to standard titanium or copper elements, INCOTEC heaters are designed for a significantly longer service life — reducing replacement costs over the cylinder's lifetime.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;overflow:hidden;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:13px 16px;cursor:pointer;font-weight:600;list-style:none;\"\u003eDoes the DGC300 include a full G3 unvented kit?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eYes. The cylinder ships with a \u003cstrong\u003ecomplete G3 unvented kit\u003c\/strong\u003e including: strainer, pressure reducing valve (PRV), expansion relief valve, drain cock, and tundish. The motorised Honeywell zone valve and expansion vessel (12–24L) are also included — minimising additional parts procurement for the installer.\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":62785006960989,"sku":"DGC300","price":1730.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OsoDeltaGeoCoilDGCHeatPumpCylinder.jpg?v=1764833152"},{"product_id":"oso-maxi-geocoil-mgc400-400l-heat-pump-cylinder-high-capacity-15kw-3-phase-unvented-hot-water-storage","title":"OSO Maxi GeoCoil MGC400 400L Heat Pump Cylinder | High Capacity 15kW 3-Phase Unvented Hot Water Storage","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eOSO Maxi GeoCoil MGC400\u003c\/strong\u003e is a \u003cstrong\u003e400 litre unvented heat pump cylinder\u003c\/strong\u003e optimised for maximum hot water production from heat pumps up to 25 kW (with larger models up to 40 kW). Featuring \u003cstrong\u003e3.1 m² large smooth scale-resistant titanium alloy coil\u003c\/strong\u003e and superior \u003cstrong\u003evacuum insulation panel (VIP) and NANOPUR foam insulation\u003c\/strong\u003e, it delivers ultra-efficient, rapid recovery and low heat loss.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 litre capacity\u003c\/strong\u003e provides high-volume hot water storage for large homes and commercial properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh heat pump compatibility\u003c\/strong\u003e up to 25 kW ensures maximum efficiency and flexible system integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced insulation technology\u003c\/strong\u003e combining VIP and NANOPUR foam for minimal standing heat loss, saving up to 650 kWh\/year.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.1 m² smooth scale-resistant primary coil\u003c\/strong\u003e designed for rapid heat transfer and durability in hard water areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-phase 15 kW electric immersion heater option\u003c\/strong\u003e for high power backup and quick recovery times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable thermostat (60-90°C)\u003c\/strong\u003e with anti-legionella and holiday modes for optimal hygiene and energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact diameter 595 mm but tall 2170 mm height\u003c\/strong\u003e designed to fit standard airing cupboards while maximising capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-fitted comprehensive unvented control pack\u003c\/strong\u003e including expansion vessel, safety valves, motorised valve and temperature controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy the OSO Maxi GeoCoil MGC400?\u003c\/h2\u003e\n\u003cp\u003eThis cylinder is built for \u003cstrong\u003emaximum hot water production and energy efficiency\u003c\/strong\u003e, ideal for large residential buildings or commercial applications requiring high capacity and rapid recovery combined with compliance to the strictest building and energy regulations.\u003c\/p\u003e\n\u003cp\u003eThe use of \u003cstrong\u003ehigh-grade materials and advanced insulation\u003c\/strong\u003e ensures long service life and significantly reduced operating costs.\u003c\/p\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge homes and light commercial properties\u003c\/strong\u003e with high hot water requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump systems up to 25 kW\u003c\/strong\u003e needing large capacity indirect unvented cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew build and retrofit projects\u003c\/strong\u003e requiring future-proofed, high-efficiency hot water solutions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallations needing 3-phase electric immersion backup\u003c\/strong\u003e for rapid hot water availability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: \u003cstrong\u003eOSO Hotwater\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel: \u003cstrong\u003eMaxi GeoCoil MGC400 (Product code: 11008988)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eType: \u003cstrong\u003eIndirect unvented heat pump cylinder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCapacity: \u003cstrong\u003e400 litres\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeat Pump Compatibility: \u003cstrong\u003eUp to 25 kW\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnergy Rating: \u003cstrong\u003eA (ErP)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrimary Coil Size: \u003cstrong\u003e3.1 m² smooth scale-resistant titanium alloy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions: \u003cstrong\u003eDiameter 595 mm x Height 2170 mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: \u003cstrong\u003eApprox. 101 kg empty\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eImmersion Heater: \u003cstrong\u003e15 kW 3-phase (optional)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStanding Heat Loss: \u003cstrong\u003eLow heat loss from VIP + foam insulation\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThermostat: \u003cstrong\u003eAdjustable 60-90°C with anti-legionella \u0026amp; holiday modes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eExpansion Vessel: \u003cstrong\u003eIncluded in control pack\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWarranty: \u003cstrong\u003e25 years tank \/ 2 years components\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Compliance\u003c\/h2\u003e\n\u003cp\u003eSupplied complete with a \u003cstrong\u003efull G3-compliant unvented control pack\u003c\/strong\u003e to ensure safe, efficient installation by qualified professionals, including all safety valves, expansion vessel, and controls for professional heat pump integration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":62785019806045,"sku":"MGC400","price":4900.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OsoHotwaterMaxiGeoCoilMGCcommercialcylinderheatpump.jpg?v=1764833721"},{"product_id":"oso-maxi-geocoil-mgc1000-1000l-commercial-heat-pump-cylinder-15kw-3-phase-high-capacity-unvented-storage","title":"OSO Maxi GeoCoil MGC1000 1000L Commercial Heat Pump Cylinder | 15kW 3-Phase High-Capacity Unvented Storage","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eOSO Maxi GeoCoil MGC1000\u003c\/strong\u003e is a \u003cstrong\u003e1000 litre commercial unvented heat pump cylinder\u003c\/strong\u003e from OSO's class-leading MAXI commercial range, designed for maximum hot water production from heat pumps up to 40 kW. Featuring a massive \u003cstrong\u003e7.0 m² smooth scale-resistant titanium alloy coil\u003c\/strong\u003e and advanced \u003cstrong\u003eVIP + NANOPUR insulation\u003c\/strong\u003e, it delivers rapid recovery and exceptional energy efficiency for demanding commercial applications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1000 litre capacity\u003c\/strong\u003e serves large commercial properties, hotels, schools and multiple dwellings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7.0 m² oversized primary coil\u003c\/strong\u003e optimised for heat pumps up to 40 kW and solar collectors up to 40 m².\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass-leading C-rated efficiency\u003c\/strong\u003e with 141W standing heat loss through advanced VIP and foam insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 kW 3-phase immersion heaters (2 x 7.5 kW)\u003c\/strong\u003e positioned above coil as booster and backup for legionella protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 bar design pressure\u003c\/strong\u003e with EVERLAST™ high-alloy stainless steel and ULTRAWELD™ technology for extreme corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostat adjustable 60-90°C\u003c\/strong\u003e with anti-legionella cycle and holiday mode for hygiene compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 1000 mm diameter x 2100 mm height\u003c\/strong\u003e maximises capacity in commercial plant rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete factory-fitted controls\u003c\/strong\u003e including expansion vessel, safety valves and motorised zoning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy the OSO Maxi GeoCoil MGC1000?\u003c\/h2\u003e\n\u003cp\u003eAs part of OSO's proven \u003cstrong\u003e50-year commercial MAXI series\u003c\/strong\u003e, the MGC1000 offers unmatched durability, efficiency and customisability for high-demand hot water systems while meeting stringent commercial hygiene and energy regulations.\u003c\/p\u003e\n\u003cp\u003eThe combination of \u003cstrong\u003eoversized heat exchanger, high-power electric backup and superior insulation\u003c\/strong\u003e ensures reliable performance with significant lifetime energy savings in the most demanding applications.\u003c\/p\u003e\n\u003ch2\u003eSuitable For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial properties\u003c\/strong\u003e – hotels, restaurants, schools, hospitals, leisure centres with high hot water demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple occupancy buildings\u003c\/strong\u003e – student accommodation, care homes, HMO's serving 50+ people.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge heat pump systems up to 40 kW\u003c\/strong\u003e requiring high-capacity indirect storage with solar integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFacilities requiring legionella compliance\u003c\/strong\u003e through high-temperature boost capability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: \u003cstrong\u003eOSO Hotwater\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModel: \u003cstrong\u003eMaxi GeoCoil MGC1000 (15 kW 3x230V + HX 7.0 m²)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eType: \u003cstrong\u003eCommercial indirect unvented heat pump cylinder\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCapacity: \u003cstrong\u003e1000 litres (865L actual volume)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnergy Rating: \u003cstrong\u003eC (ErP)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStanding Heat Loss: \u003cstrong\u003e141W \/ ~3.4 kWh\/24hrs (EN12897)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions: \u003cstrong\u003eØ1000 mm x 2100 mm height\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: \u003cstrong\u003e225 kg empty \/ ~1225 kg full\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePrimary Coil: \u003cstrong\u003e7.0 m² smooth scale-resistant titanium alloy\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHeat Pump Capacity: \u003cstrong\u003eUp to 40 kW + solar up to 40 m²\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eImmersion Heaters: \u003cstrong\u003e2 x 7.5 kW (15 kW total 3-phase 230\/400V)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesign Pressure: \u003cstrong\u003e10 bar\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThermostat: \u003cstrong\u003e70°C setpoint (adjustable 60-90°C) with safety cut-out\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eTank Material: \u003cstrong\u003eEVERLAST™ high-alloy stainless steel with ULTRAWELD™\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWarranty: \u003cstrong\u003e5-10 years commercial tank warranty\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Compliance\u003c\/h2\u003e\n\u003cp\u003eFactory-assembled with \u003cstrong\u003ecomplete commercial G3 controls package\u003c\/strong\u003e including oversized expansion vessel, multiple safety valves and zoning controls for professional installation in compliance with UK Building Regulations and commercial hygiene standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":62785028161885,"sku":"MGC1000","price":6990.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OsoHotwaterMaxiGeoCoilMGCcommercialcylinderheatpump_b17a8b7a-5eb0-42a1-a4df-7a459a2252f3.jpg?v=1764834066"},{"product_id":"ideal-heating-logic-air-dhw-pre-plumbed-210l-1-zone-heat-pump-cylinder-c-w-buffer","title":"Ideal Heating Logic Air DHW Pre‑Plumbed 210L 1 Zone Heat Pump Cylinder c\/w Buffer","description":"\u003cdiv class=\"product-single__description rte\"\u003e\n\u003ch1\u003eIdeal Heating Logic Air DHW Pre‑Plumbed 210L 1 Zone Heat Pump Cylinder c\/w Buffer\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e236208 | 210L pre‑plumbed domestic hot water cylinder with integrated buffer for Ideal Logic Air heat pump systems, supplied as a 1‑zone, high‑efficiency, ready‑to‑install package.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e210 litre domestic hot water capacity, suitable for medium to large homes using heat pump heating.\u003c\/li\u003e\n\u003cli\u003ePre‑plumbed assembly to minimise on‑site pipework, reduce installation time and ensure consistent quality.\u003c\/li\u003e\n\u003cli\u003e1 heating zone configuration, ideal for straightforward system layouts.\u003c\/li\u003e\n\u003cli\u003eIntegrated buffer tank to stabilise flow temperatures, reduce heat pump cycling and improve seasonal efficiency.\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for use with heat pump systems, optimised for Ideal Logic Air units.\u003c\/li\u003e\n\u003cli\u003eHigh‑grade insulation and construction for low heat loss and long service life.\u003c\/li\u003e\n\u003cli\u003eLong 25‑year cylinder warranty (subject to Ideal Heating terms and conditions).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Data\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIdeal Heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLogic Air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLogic Air DHW Pre‑Plumbed 210L 1 Zone c\/w Buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e236208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeat pump cylinder, pre‑plumbed, with buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal DHW Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e210 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo. of Heating Zones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 zone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty (Cylinder)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 years (subject to manufacturer’s T\u0026amp;Cs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross Weight (inc. packaging)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e61.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2095 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e644 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Width \/ Footprint\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e702 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGTIN \/ EAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5022142362087\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for homes using Ideal Logic Air air‑source heat pumps requiring a dedicated DHW cylinder with built‑in buffer volume.\u003c\/li\u003e\n\u003cli\u003eBest suited to households with moderate to high domestic hot water demand and a single heating zone layout.\u003c\/li\u003e\n\u003cli\u003eProvides a neat, energy‑efficient pre‑engineered solution that simplifies design, installation and ongoing maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMPN:\u003c\/strong\u003e 236208\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e Ideal Heating Logic Air DHW Pre‑Plumbed 210L 1 Zone Heat Pump Cylinder with Buffer\u003cbr\u003e\u003cstrong\u003eEAN\/GTIN:\u003c\/strong\u003e 5022142362087\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePre‑plumbed 210L Logic Air cylinder and buffer package offering a clean, time‑saving install and stable, efficient operation for modern heat pump‑based heating systems.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ideal Heating","offers":[{"title":"Default Title","offer_id":62835360039261,"sku":"236208","price":2900.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/IdealHeatingLogicAirDHWPre-PlumbedHeatPumpCylinderwithBuffer.jpg?v=1765266745"},{"product_id":"ideal-heating-logic-air-dhw-pre-plumbed-300l-2-zone-heat-pump-cylinder-c-w-buffer","title":"Ideal Heating Logic Air DHW Pre‑Plumbed 300L 2 Zone Heat Pump Cylinder c\/w Buffer","description":"\u003cdiv class=\"product-single__description rte\"\u003e\n\u003ch1\u003eIdeal Heating Logic Air DHW Pre‑Plumbed 300L 2 Zone Heat Pump Cylinder c\/w Buffer\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e236213 | 300L pre‑plumbed domestic hot water cylinder with integrated buffer tank and 2 heating zones, designed for high‑efficiency operation with air‑source heat pump systems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e300 litre domestic hot water capacity, ideal for larger households with higher DHW demand.\u003c\/li\u003e\n\u003cli\u003eFactory pre‑plumbed assembly with pipework and key components pre‑installed to speed up installation and reduce on‑site labour.\u003c\/li\u003e\n\u003cli\u003e2‑zone configuration for independently controlled heating areas (for example, upstairs and downstairs).\u003c\/li\u003e\n\u003cli\u003eIntegrated 63.5 litre buffer tank to stabilise system flow, reduce heat pump cycling and improve seasonal efficiency.\u003c\/li\u003e\n\u003cli\u003eSpecifically optimised for use with air‑source heat pumps, ensuring compatibility and reliable performance.\u003c\/li\u003e\n\u003cli\u003eHigh‑efficiency insulation to minimise standing heat loss and reduce running costs.\u003c\/li\u003e\n\u003cli\u003eConstructed from high‑quality, corrosion‑resistant materials for long‑term reliability.\u003c\/li\u003e\n\u003cli\u003eLong 25‑year cylinder warranty (subject to Ideal Heating terms and conditions).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Data\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIdeal Heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLogic Air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLogic Air DHW Pre‑Plumbed 300L 2 Zone c\/w Buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e236213\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeat pump cylinder, pre‑plumbed, with buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal DHW Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffer Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e63.5 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Zones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 zones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty (Cylinder)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 years (subject to manufacturer’s T\u0026amp;Cs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGross Weight (inc. packaging)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e83.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2128 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCylinder Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e705 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverall Width \/ Footprint\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e780 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGTIN \/ EAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5022142362131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eBenefits \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePre‑engineered package reduces design complexity and installation time for heat pump systems.\u003c\/li\u003e\n\u003cli\u003eTwo heating zones allow tailored temperature and scheduling for different areas of the property.\u003c\/li\u003e\n\u003cli\u003eIntegrated buffer improves comfort and system efficiency, particularly in well‑insulated or low‑load homes.\u003c\/li\u003e\n\u003cli\u003eIdeal for properties using an air‑source heat pump as the primary source of heating and hot water with higher capacity requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMPN:\u003c\/strong\u003e 236213\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e Ideal Heating Logic Air DHW Pre‑Plumbed 300L 2 Zone Heat Pump Cylinder with Buffer\u003cbr\u003e\u003cstrong\u003eEAN\/GTIN:\u003c\/strong\u003e 5022142362131\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHigh‑capacity pre‑plumbed Logic Air cylinder and buffer solution, providing a neat, time‑saving and efficient hot water and heating package for modern two‑zone heat pump installations.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ideal Heating","offers":[{"title":"Default Title","offer_id":62835374063965,"sku":"236213","price":3400.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/IdealHeatingLogicAirDHWPre-PlumbedHeatPumpCylinderwithBuffer.jpg?v=1765266745"},{"product_id":"uk-cylinders-500l-flowcyl-standard-cylinder","title":"UK Cylinders 500L FlowCyl Standard Cylinder","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eUK Cylinders 500L FlowCyl Standard Cylinder (FCHPD4500)\u003c\/strong\u003e is a large-capacity, unvented hot water cylinder designed for high-demand homes and light commercial properties. Built in the UK from high‑grade stainless steel and fully insulated, it delivers powerful mains‑pressure hot water with excellent efficiency.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e500 litre capacity\u003c\/strong\u003e – ideal for multiple bathrooms and high, simultaneous hot water demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh quality stainless steel\u003c\/strong\u003e – Duplex stainless steel construction for long life and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 mm polyurethane insulation\u003c\/strong\u003e – 100% CFC\/HCFC‑free foam and a 100% recyclable silver casing for low standing heat losses and a tidy plantroom finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart L compliant\u003c\/strong\u003e – highly insulated and designed to meet current Building Regulations energy efficiency requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25-year cylinder warranty\u003c\/strong\u003e – supplied with a 25‑year manufacturer cylinder warranty and 2‑year parts warranty (terms apply).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved, ISO 9001 manufacture\u003c\/strong\u003e – independently approved product from a quality‑certified UK manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCold water inlet control set.\u003c\/li\u003e\n\u003cli\u003eTwo‑port zone valve (recommended to swap for a Mut Meccanica Tovo SV for optimum reliability).\u003c\/li\u003e\n\u003cli\u003eHigh‑limit thermostat.\u003c\/li\u003e\n\u003cli\u003eTundish.\u003c\/li\u003e\n\u003cli\u003e3 kW immersion heater.\u003c\/li\u003e\n\u003cli\u003eTemperature and pressure relief (T\u0026amp;P) valve.\u003c\/li\u003e\n\u003cli\u003eExpansion vessel and wall bracket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct code\u003c\/td\u003e\n\u003ctd\u003eFCHPD4500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e500 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDry weight\u003c\/td\u003e\n\u003ctd\u003e92 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight full\u003c\/td\u003e\n\u003ctd\u003e592 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e1.98 m (approx. 1975–1980 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e690 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder warranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParts warranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eHydraulic \u0026amp; Performance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot and cold connectors\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor probe pocket\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary coil surface area\u003c\/td\u003e\n\u003ctd\u003e4.0 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary coil rating\u003c\/td\u003e\n\u003ctd\u003e54 kW (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd\u003e2.42 kWh\/24 h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eERP efficiency band\u003c\/td\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDesign \u0026amp; Application\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimised for use with modern low‑temperature heat sources, providing excellent heat transfer via a large surface‑area primary coil.\u003c\/li\u003e\n\u003cli\u003eSuitable for larger domestic systems or small commercial applications requiring high draw‑off at mains pressure.\u003c\/li\u003e\n\u003cli\u003eSupplied as a complete unvented package and intended for installation by a G3‑qualified engineer in accordance with UK Building Regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":62934121054557,"sku":"FCHPD4500","price":2700.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"uk-cylinders-600l-flowcyl-standard-cylinder","title":"UK Cylinders 600L FlowCyl Standard Cylinder","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eUK Cylinders 600L FlowCyl Standard Cylinder (FCHPD4600)\u003c\/strong\u003e is a large‑capacity unvented hot water cylinder designed for high‑demand homes and light commercial properties. Manufactured in the UK from high‑grade Duplex stainless steel and fully insulated, it delivers powerful mains‑pressure hot water with excellent efficiency and reliability.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600 litre capacity\u003c\/strong\u003e – ideal for multiple bathrooms and heavy simultaneous hot water draw‑off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh quality stainless steel\u003c\/strong\u003e – Duplex stainless steel inner vessel for long life and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 mm polyurethane insulation\u003c\/strong\u003e – 100% CFC\/HCFC‑free foam with a 100% recyclable silver casing for low standing heat losses and a neat plantroom finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart L compliant\u003c\/strong\u003e – highly insulated to meet current Building Regulations for energy efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25‑year cylinder warranty\u003c\/strong\u003e – backed by a 25‑year manufacturer’s cylinder warranty and 2‑year parts warranty (terms apply).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved, ISO 9001 manufacture\u003c\/strong\u003e – independent approvals and quality‑assured UK production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCold water inlet control set.\u003c\/li\u003e\n\u003cli\u003eTwo‑port zone valve \u003cem\u003e(typically recommended to be upgraded to a Mut Meccanica Tovo SV for high‑flow heat pump systems)\u003c\/em\u003e.\u003c\/li\u003e\n\u003cli\u003eHigh‑limit thermostat.\u003c\/li\u003e\n\u003cli\u003eTundish.\u003c\/li\u003e\n\u003cli\u003e3 kW immersion heater.\u003c\/li\u003e\n\u003cli\u003eTemperature and pressure (T\u0026amp;P) relief valve.\u003c\/li\u003e\n\u003cli\u003eExpansion vessel and wall bracket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eGeneral\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct code\u003c\/td\u003e\n\u003ctd\u003eFCHPD4600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e600 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDry weight\u003c\/td\u003e\n\u003ctd\u003e103 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight full\u003c\/td\u003e\n\u003ctd\u003e703 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e2.139 m (approx. 2139 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e690 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCylinder warranty\u003c\/td\u003e\n\u003ctd\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParts warranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\"\u003eHydraulic \u0026amp; Performance\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot and cold connectors\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor probe pocket\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary coil surface area\u003c\/td\u003e\n\u003ctd\u003e4.0 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary coil rating\u003c\/td\u003e\n\u003ctd\u003e54 kW (typical large‑coil rating for this range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd\u003e2.68 kWh\/24 h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eErP efficiency band\u003c\/td\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDesign \u0026amp; Application\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimised for use with modern low‑temperature heat sources such as heat pumps, using a large surface‑area primary coil for rapid heat transfer.\u003c\/li\u003e\n\u003cli\u003eSuitable for larger domestic systems or small commercial\/MDU applications requiring high hot water availability at mains pressure.\u003c\/li\u003e\n\u003cli\u003eSupplied as a complete unvented package for installation by a G3‑qualified engineer in accordance with UK Building Regulations and the manufacturer’s instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"UK Cylinders","offers":[{"title":"Default Title","offer_id":62934133506397,"sku":"FCHPD4600","price":2950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/FlowCylHeatpumpCylinders.png?v=1753961820"},{"product_id":"telford-tempest-pre-plumbed-300l-cylinder-50l-buffer-for-samsung-heat-pump","title":"Telford Tempest Pre Plumbed 300L Cylinder 50L Buffer For Samsung Heat Pump","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 300L\/50L Pre‑Plumbed Cylinder for Samsung\u003c\/strong\u003e (product code \u003cstrong\u003eTSMI300\/50\/HP\/PP\/SAM\u003c\/strong\u003e) is a 300L Tempest unvented stainless‑steel heat pump cylinder with an integrated 50L buffer vessel, pre‑plumbed and pre‑wired for quick installation with Samsung air source heat pumps, including a dedicated Samsung control package.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre‑plumbed Tempest cylinder\u003c\/strong\u003e – factory‑assembled pipework and wiring significantly reduce installation time and site labour compared with loose‑component builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer\u003c\/strong\u003e – built‑in 50L buffer store optimises system volume and flow, improving heat pump cycling, defrost performance and system stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised coil\u003c\/strong\u003e – large surface‑area coil specifically designed for low‑temperature heat pumps to maximise heat transfer into the stored water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex stainless‑steel construction\u003c\/strong\u003e – high‑grade stainless steel cylinder body for excellent corrosion resistance and long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime inner vessel warranty\u003c\/strong\u003e – lifetime manufacturing warranty on the inner container with 2‑year warranty on components, subject to Telford terms and registration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung‑specific configuration\u003c\/strong\u003e – supplied pre‑plumbed and pre‑wired around Samsung controls and hydraulics, simplifying compliant Samsung system builds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePre‑Installed Components\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung control box and wired controller (MIM‑E03EN)\u003c\/strong\u003e – dedicated Samsung mono controller and room interface, pre‑mounted and pre‑wired for direct integration with Samsung heat pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre‑wired 3‑port diverter valve\u003c\/strong\u003e – Midsummer 3‑port diverter valve fitted and wired for automatic DHW \/ heating changeover control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary circulation pump\u003c\/strong\u003e – Grundfos pump (approx. 7.5 m head) fitted on the secondary circuit to ensure adequate cylinder and system circulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer vessel\u003c\/strong\u003e – factory‑built buffer section within the cylinder assembly to provide additional system volume and hydraulic decoupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilling loop and pressure gauge\u003c\/strong\u003e – pre‑installed filling loop and pressure gauge simplify system filling, pressurisation and routine checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and inlet components\u003c\/strong\u003e – 15–22mm tundish, T\u0026amp;P relief valve, 22mm inlet group valve and automatic air vent are factory‑fitted for safety and compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion heaters\u003c\/strong\u003e – 3kW immersion heaters in both the main tank and buffer provide backup heat and legionella protection options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Included Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung flow sensor\u003c\/strong\u003e – supplied flow sensor for correct monitoring and control by the Samsung heat pump system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotable expansion vessel\u003c\/strong\u003e – separate expansion vessel provided to manage potable hot‑water expansion, typically supplied with bracket for wall mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCylinder Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal cylinder capacity:\u003c\/strong\u003e 300L domestic hot‑water storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated buffer volume:\u003c\/strong\u003e 50L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmpty weight:\u003c\/strong\u003e approximately 122kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull weight:\u003c\/strong\u003e approximately 417kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e around 2040mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e approximately 580mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary coil size:\u003c\/strong\u003e about 3m² heat‑pump coil surface area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e TSMI300\/50\/HP\/PP\/SAM (Tempest Heat Pump with 50L Buffer Samsung Pre‑Plumbed).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanding heat loss:\u003c\/strong\u003e approximately 2.28kWh\/24h (around 95W) under standard test conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum primary pressure:\u003c\/strong\u003e 3 bar on the primary (heat pump) side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT\u0026amp;P relief valve setting:\u003c\/strong\u003e typically 7 bar, with factory‑fitted 7 bar \/ 90°C T\u0026amp;P valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion heater rating:\u003c\/strong\u003e 3kW in the main tank and 3kW in the buffer section.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible heat pumps:\u003c\/strong\u003e specifically configured for Samsung Gen6, Gen7 and HTQ air source heat pumps; not suitable for Samsung integrated heat pumps which incorporate their own cylinder package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e indirect unvented mains‑pressure hot‑water cylinder for use with Samsung ASHP as primary heat source, with integrated buffer for space‑heating hydraulic stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation use case:\u003c\/strong\u003e ideal for new‑builds and retrofits where a fast, tidy, Samsung‑approved pre‑plumbed cylinder solution is required to minimise site wiring and first‑fix complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWarranty \u0026amp; Registration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty cover:\u003c\/strong\u003e lifetime manufacturing warranty on the inner stainless‑steel container and 2‑year warranty on factory‑fitted components, subject to Telford’s terms and correct installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistration:\u003c\/strong\u003e the cylinder must be registered with Telford after installation, via the Telford product registration portal, to activate the full warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":62934268903773,"sku":"TSMI300\/50\/HP\/PP\/SAM","price":3050.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestPrePlumbedCylinderwith50LBufferForSamsungHeatPump.jpg?v=1766128717"},{"product_id":"telford-tempest-pre-plumbed-250l-cylinder-50l-buffer-for-samsung-heat-pump","title":"Telford Tempest Pre Plumbed 250L Cylinder 50L Buffer For Samsung Heat Pump","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 250L\/50L Pre‑Plumbed Cylinder for Samsung\u003c\/strong\u003e (product code \u003cstrong\u003eTSMI250\/50\/HP\/PP\/SAM\u003c\/strong\u003e) is a 250L Tempest unvented stainless‑steel heat pump cylinder with an integrated 50L buffer vessel, factory pre‑plumbed and pre‑wired to provide a fast, tidy installation with Samsung air source heat pumps.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre‑plumbed Tempest cylinder\u003c\/strong\u003e – duplex stainless‑steel unvented cylinder with pre‑fabricated 28mm pipework and wiring to minimise on‑site labour and first‑fix time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer\u003c\/strong\u003e – built‑in 50L buffer store improves system volume, protects against short‑cycling and enhances heat pump defrost and flow stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised coil\u003c\/strong\u003e – large‑surface‑area coil specifically designed for low‑temperature heat pumps to maximise heat transfer and system efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains‑pressure hot water\u003c\/strong\u003e – delivers high‑flow, mains‑pressure domestic hot water suitable for modern bathrooms and multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong‑life construction\u003c\/strong\u003e – Duplex stainless‑steel inner vessel with high‑performance insulation and robust fittings for durability and low standing heat losses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePre‑Installed Components\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung control box and wired controller (MIM‑E03EN)\u003c\/strong\u003e – Samsung mono controller and user interface pre‑mounted and pre‑wired for seamless integration with compatible Samsung heat pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3‑port diverter valve (pre‑wired)\u003c\/strong\u003e – factory‑wired diverter valve to manage DHW \/ heating priority without additional wiring centres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary circulation pump\u003c\/strong\u003e – Grundfos pump (approx. 7.5m head) fitted on the secondary circuit to ensure correct flow through the cylinder and heating system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer\u003c\/strong\u003e – internal buffer vessel within the cylinder assembly, eliminating the need for a separate external buffer tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilling loop and pressure gauge\u003c\/strong\u003e – pre‑installed filling kit and pressure gauge for easy filling, pressurisation and ongoing system checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and control components\u003c\/strong\u003e – 15–22mm tundish, temperature and pressure relief (T\u0026amp;P) valve, 22mm inlet group valve and automatic air vent, factory‑fitted for compliance and safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion heaters\u003c\/strong\u003e – 3kW immersion heater in the main tank and 3kW immersion heater in the buffer section for backup heating and pasteurisation cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Included Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung flow sensor\u003c\/strong\u003e – dedicated flow sensor included for correct control and monitoring by the Samsung heat pump system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotable expansion vessel\u003c\/strong\u003e – expansion vessel supplied to manage domestic hot‑water expansion, typically complete with wall‑mounting bracket.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCylinder Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal DHW capacity:\u003c\/strong\u003e 250L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated buffer volume:\u003c\/strong\u003e 50L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmpty weight:\u003c\/strong\u003e approximately 110kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull weight:\u003c\/strong\u003e approximately 357kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e around 1778mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e approximately 580mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary coil size:\u003c\/strong\u003e around 3m² heat‑pump coil surface area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details \u0026amp; Performance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e TSMI250\/50\/HP\/PP\/SAM (Tempest Heat Pump with 50L Buffer Samsung Pre‑Plumbed, 250L).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStanding heat loss:\u003c\/strong\u003e approximately 2.11kWh\/24h (about 88W) under standard test conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum primary pressure:\u003c\/strong\u003e 3 bar on the primary (heat pump) circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT\u0026amp;P valve setting:\u003c\/strong\u003e typically 7 bar \/ 90°C via the factory‑fitted T\u0026amp;P relief valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImmersion heater rating:\u003c\/strong\u003e 3kW in the main cylinder and 3kW in the buffer vessel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible heat pumps:\u003c\/strong\u003e specifically configured for Samsung Gen6, Gen7 and HTQ air source heat pumps and not suitable for Samsung integrated heat pumps which already incorporate a cylinder package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e indirect, unvented mains‑pressure hot‑water cylinder with integrated buffer, designed for use with a Samsung ASHP as the primary heat source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal use cases:\u003c\/strong\u003e small to medium dwellings where a 250L cylinder with an integrated 50L buffer provides an optimal balance of DHW storage, plant‑room footprint and system stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWarranty \u0026amp; Registration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime manufacturing warranty on the inner stainless‑steel vessel and 2‑year warranty on factory‑fitted components (terms and conditions apply).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistration:\u003c\/strong\u003e the cylinder must be registered with Telford after installation via the Telford online registration portal to validate the extended warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":62934292791645,"sku":"TSMI250\/50\/HP\/PP\/SAM","price":2970.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestPrePlumbed300LCylinder50LBufferForSamsungHeatPumpUK.webp?v=1766128717"},{"product_id":"telford-tempest-pre-plumbed-200l-cylinder-50l-buffer-for-samsung-heat-pump","title":"Telford Tempest Pre Plumbed 200L Cylinder 50L Buffer For Samsung Heat Pump","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eTelford 200L\/50L Pre‑Plumbed Cylinder for Samsung\u003c\/strong\u003e (\u003cstrong\u003eTSMI200\/50\/HP\/PP\/SAM\u003c\/strong\u003e) is a 200L Tempest unvented stainless‑steel heat pump cylinder with an integrated 50L buffer, factory pre‑plumbed and pre‑wired to deliver a fast, neat installation with Samsung air source heat pumps.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre‑plumbed Tempest cylinder\u003c\/strong\u003e – duplex stainless‑steel unvented cylinder with press‑fit pre‑fabricated 28mm pipework and pre‑wiring, designed to minimise installation time and reduce on‑site errors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer\u003c\/strong\u003e – built‑in 50L buffer vessel increases system volume and stabilises flow for improved heat pump cycling and defrost performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised coil\u003c\/strong\u003e – purpose‑designed large surface‑area coil to maximise heat transfer from a low‑temperature heat pump into the stored water, supporting high system efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains‑pressure hot water\u003c\/strong\u003e – unvented design provides high‑flow, mains‑pressure domestic hot water suitable for modern bathrooms and multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact storage volume\u003c\/strong\u003e – 200L DHW capacity with 50L buffer makes this model well suited to smaller homes or properties with limited plant‑room space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePre‑Installed Components\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung control box and wired controller – MIM‑E03EN\u003c\/strong\u003e – Samsung mono controller and room interface pre‑mounted and pre‑wired for direct integration with compatible Samsung heat pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMidsummer 3‑port diverter valve (pre‑wired)\u003c\/strong\u003e – factory‑wired 3‑port diverter valve to manage DHW and space‑heating priority without additional wiring centres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary circulation Grundfos pump (7.5m head)\u003c\/strong\u003e – pre‑installed circulation pump on the secondary circuit to ensure correct flow through cylinder and heating system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer\u003c\/strong\u003e – internal buffer store incorporated into the cylinder assembly, removing the need for a separate buffer vessel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilling loop and pressure gauge\u003c\/strong\u003e – fitted filling kit and pressure gauge simplify initial filling, commissioning and routine pressure checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and inlet components\u003c\/strong\u003e – 15–22mm tundish, temperature and pressure (T\u0026amp;P) relief valve, 22mm inlet group valve and automatic air vent are factory‑fitted for compliance and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOther Included Accessories\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung flow sensor\u003c\/strong\u003e – supplied flow sensor for correct monitoring and control by the Samsung heat pump controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotable expansion vessel\u003c\/strong\u003e – separate expansion vessel provided to manage domestic hot‑water expansion, typically complete with bracket for wall mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible heat pumps:\u003c\/strong\u003e pre‑configured specifically for Samsung air source heat pumps that use the MIM‑E03EN mono control platform; not compatible with Samsung integrated heat pumps which include their own cylinder package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e indirect, unvented mains‑pressure hot‑water cylinder with integrated buffer, designed for use with a Samsung ASHP as the primary heat source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal use cases:\u003c\/strong\u003e smaller dwellings or lower‑demand properties where a 200L cylinder and 50L buffer provide sufficient hot‑water storage and hydraulic stability in a compact footprint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConstruction, Warranty \u0026amp; Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Duplex stainless‑steel inner vessel with high‑performance insulation and robust external steel case for durability and low standing heat losses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e lifetime manufacturing warranty on the inner container and 2‑year warranty on components, subject to Telford terms and correct installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegistration:\u003c\/strong\u003e the cylinder must be registered with Telford via the online registration portal after commissioning to activate the full warranty cover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":62934348726621,"sku":"TSMI200\/50\/HP\/PP\/SAM","price":2850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestPrePlumbed300LCylinder50LBufferForSamsungHeatPumpUK.webp?v=1766128717"},{"product_id":"telford-tempest-indirect-horizontal-heat-pump-cylinders","title":"Telford Tempest Indirect Horizontal Heat Pump Cylinder 170L 200L 250L 300L 400L 500L","description":"\u003cdiv style=\"font-size:16px;font-family:Arial,sans-serif;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n  \u003c!-- Intro --\u003e\n  \u003cp\u003eThe \u003cstrong\u003eTelford Tempest Indirect Horizontal Heat Pump Cylinder\u003c\/strong\u003e is a \u003cstrong\u003eUK-manufactured, Duplex stainless-steel unvented hot water storage cylinder\u003c\/strong\u003e designed specifically for installation on its side — solving the problem of loft rooms, low-ceiling plant rooms, and airing cupboards where a full-height vertical cylinder will not fit. Available in \u003cstrong\u003esix capacities from 170 L to 500 L\u003c\/strong\u003e, each model features a \u003cstrong\u003epurpose-designed large-surface-area heat pump coil\u003c\/strong\u003e (2 m² on the 170 L; 3 m² on all larger sizes) for fast, efficient transfer of low-temperature energy from an air source or ground source heat pump into stored water. The cylinder is supplied complete with a \u003cstrong\u003efull G3 unvented kit, two mounting cradles, and a factory-fitted 3 kW immersion heater\u003c\/strong\u003e for electric back-up. Built to Telford's premium Tempest specification — with steel up to \u003cstrong\u003e40% thicker\u003c\/strong\u003e than some competitors — and backed by a \u003cstrong\u003elifetime manufacturing warranty\u003c\/strong\u003e on the inner vessel.\u003c\/p\u003e\n\n  \u003c!-- Stat strip --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:20px 0;\"\u003e\n    \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003e6 sizes\u003c\/div\u003e\n      \u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003e170 L – 500 L\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003e3 m²\u003c\/div\u003e\n      \u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eHP coil surface (200–500 L)\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003eHorizontal\u003c\/div\u003e\n      \u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eLoft \u0026amp; low-ceiling install\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003eLifetime\u003c\/div\u003e\n      \u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eInner vessel warranty\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:20px;font-weight:700;\"\u003eUK-made\u003c\/div\u003e\n      \u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eTelford, Shropshire\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Red callout --\u003e\n  \u003cdiv style=\"background:#fff3f3;border-left:4px solid #cc0000;padding:14px 16px;border-radius:6px;margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#cc0000;\"\u003eInstaller requirement:\u003c\/strong\u003e Unvented hot water cylinders must be installed and commissioned by a \u003cstrong\u003eG3-qualified engineer\u003c\/strong\u003e under Building Regulations Part G. The Benchmark Commissioning Checklist must be completed and handed to the customer at handover.\n  \u003c\/div\u003e\n\n  \u003c!-- Amber callout --\u003e\n  \u003cdiv style=\"background:#fffbea;border-left:4px solid #e6a817;padding:14px 16px;border-radius:6px;margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#b07d00;\"\u003eStructural loading:\u003c\/strong\u003e Horizontal cylinders lie on their cradles and impose a point load on the supporting structure. The \u003cstrong\u003e500 L model weighs 562 kg when full\u003c\/strong\u003e. Always confirm the supporting floor, beam or rack structure can bear the full loaded weight before installation — particularly in loft spaces where rafter spans and boarding may not be rated for this load.\n  \u003c\/div\u003e\n\n  \u003c!-- Teal callout --\u003e\n  \u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377CF;padding:14px 16px;border-radius:6px;margin:16px 0;\"\u003e\n    \u003cstrong style=\"color:#005c54;\"\u003eHeat pump coil sizing:\u003c\/strong\u003e The 200–500 L models all share a \u003cstrong\u003e3 m² coil surface area\u003c\/strong\u003e — more than double the coil of a standard indirect boiler cylinder. This larger surface enables the low-temperature flow from an ASHP (typically 35–55 °C) to transfer sufficient heat into the stored volume at a useful rate. If pairing with solar thermal as well, ask about the \u003cstrong\u003etwin-coil option\u003c\/strong\u003e.\n  \u003c\/div\u003e\n\n  \u003c!-- Features header --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eKey Features\u003c\/div\u003e\n\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:24px;\"\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eHorizontal Installation — Loft \u0026amp; Low-Ceiling Ready\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe defining feature of this range is its \u003cstrong\u003ehorizontal orientation\u003c\/strong\u003e. Where headroom is insufficient for a 1.5–2 m+ vertical cylinder, the Tempest Horizontal sits on two supplied cradles and uses \u003cstrong\u003elength rather than height\u003c\/strong\u003e to store volume. This makes it the natural choice for \u003cstrong\u003eloft spaces, under-eave plant rooms, integral garages, and any installation where floor-to-ceiling clearance is limited\u003c\/strong\u003e — a scenario that is increasingly common in heat pump retrofits where the airing cupboard has been repurposed.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003ePurpose-Designed 3 m² Heat Pump Coil\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eA standard indirect boiler cylinder typically has a coil of 1–1.5 m². The Tempest Horizontal HP features a \u003cstrong\u003epurpose-designed coil of up to 3 m²\u003c\/strong\u003e (3.3 m² quoted by some distributors for the 200 L+) — more than double — to compensate for the lower flow temperatures delivered by an air or ground source heat pump. \u003cstrong\u003eLarger coil area = faster heat transfer\u003c\/strong\u003e even when the primary circuit is operating at 35–50 °C rather than the 60–80 °C typical of a boiler.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eDuplex Stainless Steel — Up to 40% Thicker Wall\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eTelford's Tempest flagship range is manufactured from \u003cstrong\u003eDuplex stainless steel with walls up to 40% thicker than some competing products\u003c\/strong\u003e. Duplex combines the corrosion resistance of austenitic stainless with the strength of ferritic grades, delivering a vessel that handles aggressive water chemistry and mechanical stress across decades of service. The \u003cstrong\u003e316L grade stainless-steel 22 mm compression fittings and coil\u003c\/strong\u003e match this premium standard throughout.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eFactory-Fitted 3 kW Electric Back-up Immersion\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eEvery size includes a \u003cstrong\u003efactory-fitted 3 kW immersion heater at 240 V\u003c\/strong\u003e, ready for connection to a time switch or smart controller. This serves two purposes: it provides \u003cstrong\u003eelectric back-up heating\u003c\/strong\u003e when the heat pump is in defrost or maintenance mode, and it enables \u003cstrong\u003eanti-legionella pasteurisation cycles\u003c\/strong\u003e by heating the cylinder above 60 °C periodically — a requirement under HSG274 for some occupied buildings.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eFull Unvented Kit — Cradles Included\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eEvery cylinder ships with the \u003cstrong\u003ecomplete G3 unvented kit\u003c\/strong\u003e: inlet control group (including 3 bar PRV), acetal tundish, dual probe thermostat (dual high-limit stat), factory-fitted T\u0026amp;P relief valve (7 bar \/ 90 °C), 2-port motorised valve, remote expansion vessel with wall-mounting bracket, and — uniquely for a horizontal cylinder — \u003cstrong\u003etwo mounting cradles\u003c\/strong\u003e so the cylinder can be sited directly from the box without sourcing separate supports.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eWRAS Approved — Mains Pressure Performance\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe Tempest range is \u003cstrong\u003eWRAS approved\u003c\/strong\u003e, confirming suitability for connection to the UK mains water supply. As an unvented indirect cylinder, it delivers \u003cstrong\u003efull mains-pressure hot water\u003c\/strong\u003e to all outlets simultaneously — no pump required, no gravity-fed trickle — matching the performance expectation of modern heat pump installations where underfloor heating and efficient domestic hot water are specified together.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eTwin-Coil Option Available\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eFor hybrid installations combining a heat pump with \u003cstrong\u003esolar thermal collectors\u003c\/strong\u003e, or for those wishing to retain a gas or oil boiler as a supplementary heat source, Telford offers a \u003cstrong\u003etwin-coil variant\u003c\/strong\u003e of the Horizontal HP. The second coil serves the boiler or solar circuit independently of the heat pump primary circuit. Contact us to confirm availability in the required capacity.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n      \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eLifetime Inner Vessel Warranty\u003c\/div\u003e\n      \u003cp style=\"margin:0;font-size:15px;\"\u003eThe \u003cstrong\u003einner stainless-steel vessel carries a lifetime manufacturing warranty\u003c\/strong\u003e — one of the strongest guarantees in the UK market. Controls and components carry a 2-year guarantee. This warranty is transferable if the property changes hands. Terms and conditions apply; always retain the installation paperwork and Benchmark Commissioning record as evidence of compliant installation.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eTechnical Specifications\u003c\/div\u003e\n\n  \u003cdiv style=\"overflow-x:auto;margin-bottom:24px;\"\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;min-width:600px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n        \u003cth style=\"padding:10px 10px;text-align:left;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e170 L\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e200 L\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e250 L\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e300 L\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e400 L\u003c\/th\u003e\n        \u003cth style=\"padding:10px 8px;text-align:center;\"\u003e500 L\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eProduct code\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI170H\/HP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI200H\/HP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI250H\/HP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI300H\/HP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI400H\/HP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003eTSMI500H\/HP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eNominal capacity (L)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e170\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e200\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e250\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e300\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e400\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e500\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eActual capacity (L)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e168\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e194\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e246\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e294\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e391\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e485\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eLength (mm)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1200\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1500\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1800\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2020\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1590\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1835\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eDiameter Ø (mm)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e554\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e554\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e554\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e554\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e660\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e660\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eHeight on cradles B (mm)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e654\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e654\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e654\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e654\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e760\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e760\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eEmpty weight (kg)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e44\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e48\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e57\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e63\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e70\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e77\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eFull weight (kg)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e212\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e242\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e303\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e357\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e461\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e562\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eStanding heat loss (kWh\/24h)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1.97\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e1.85\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2.00\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2.22\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2.42\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2.49\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eStanding loss (W)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e82\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e77\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e83\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e92\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e101\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e104\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eEnergy efficiency class\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003eC (all sizes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eOperating pressure (bar)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e3 bar (all sizes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eMax incoming supply pressure (bar)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e12 bar (all sizes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eT\u0026amp;P relief valve setting\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e7 bar \/ 90 °C (factory-fitted)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eImmersion heater\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e3 kW @ 240 V (factory-fitted, all sizes)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eHP coil surface area\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e2 m²\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e3 m²\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e3 m²\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e3 m²\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e3 m²\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 8px;text-align:center;\"\u003e3 m²\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003ePrimary connections\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e1\" BSP F (HP flow and return); 400 \u0026amp; 500 L: 1\" F cons \u0026amp; unvented kit as standard\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eSecondary connections\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003e22 mm (hot draw-off, cold feed, secondary return)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eCylinder material\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003eDuplex stainless steel; 316L grade fittings and coils\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n        \u003ctd style=\"padding:8px 10px;\"\u003e\u003cstrong\u003eInner vessel warranty\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd colspan=\"6\" style=\"padding:8px 8px;text-align:center;\"\u003eLifetime manufacturing warranty (2 years on components)\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- What's in the box --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eWhat Is Supplied\u003c\/div\u003e\n\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;margin-bottom:24px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n        \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eItem\u003c\/th\u003e\n        \u003cth style=\"padding:10px 12px;text-align:left;\"\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eAcetal tundish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFor T\u0026amp;P discharge pipe routing\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eInlet control group\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e3 bar PRV; strainer; expansion relief valve; non-return valve\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003e2-port motorised valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFor zone control\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eExpansion vessel + wall bracket\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eRemote vessel with factory-fitted bracket\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eDual probe thermostat\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eDual high-limit stat configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eT\u0026amp;P relief valve\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFactory-fitted; 7 bar \/ 90 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003e3 kW immersion heater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFactory-fitted; 240 V single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eTwo mounting cradles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eFor horizontal installation; included as standard\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003c!-- FAQ --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhy does a heat pump cylinder need a larger coil than a boiler cylinder?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      A gas or oil boiler delivers primary flow temperatures of 60–80 °C, giving a large temperature difference (delta-T) across the coil — so even a small coil surface area can transfer sufficient heat quickly. An air source heat pump typically delivers flow at \u003cstrong\u003e35–55 °C\u003c\/strong\u003e, dramatically reducing the available delta-T. To maintain the same heat transfer rate with a lower temperature difference, the coil surface area must be \u003cstrong\u003esubstantially larger\u003c\/strong\u003e. The Tempest HP's 3 m² coil on the 200–500 L models is purpose-designed for this application and is why this cylinder should not be substituted with a standard boiler cylinder on heat pump installations.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat clearance do I need around a horizontal cylinder in a loft?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      The cylinder diameter sits at \u003cstrong\u003e554 mm (170–300 L) or 660 mm (400–500 L)\u003c\/strong\u003e, and sits on cradles that bring the overall height to \u003cstrong\u003e654 mm or 760 mm\u003c\/strong\u003e respectively — measured from floor to top. As well as this height, allow a minimum service clearance on each side, typically \u003cstrong\u003e300 mm\u003c\/strong\u003e at each end for pipework connections and future servicing access, and \u003cstrong\u003e200 mm\u003c\/strong\u003e top clearance for the immersion heater removal path (check the installation manual for the specific size). The cylinder itself can pass through a narrow loft hatch on its side if the cradles are removed and refitted in situ.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eCan this cylinder be used with a gas boiler if the heat pump is added later?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      The standard single-coil Tempest HP Horizontal is optimised for heat pump use. However, Telford offers a \u003cstrong\u003etwin-coil variant\u003c\/strong\u003e that can connect both a heat pump and a gas or oil boiler to independent coils. This is the recommended configuration for \u003cstrong\u003ehybrid heat pump installations\u003c\/strong\u003e where a boiler provides peak load or back-up. If a twin-coil version is required, contact us before ordering to confirm stock availability and the correct product code.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat size cylinder do I need for my heat pump installation?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      The MCS guidance and most heat pump manufacturers recommend between \u003cstrong\u003e45–60 L of cylinder volume per person\u003c\/strong\u003e for heat pump applications — more than the 35–45 L rule of thumb for boiler-fed cylinders. This is because heat pumps heat the cylinder slowly at lower temperature, so a larger buffer is needed to cover morning and evening peak demand. For a 3-person home, 200 L is the typical starting point; 4–5 people typically require 250–300 L. Your MCS-certified heat pump installer will size the cylinder as part of the system design.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eIs annual servicing required?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      Yes — as an unvented cylinder, the Tempest Horizontal HP requires \u003cstrong\u003eannual servicing by a G3-qualified engineer\u003c\/strong\u003e. The service covers the T\u0026amp;P relief valve, expansion relief valve, inlet PRV, expansion vessel pre-charge, motorised valve operation, and immersion thermostat calibration. Annual servicing is required to maintain both Building Regulations compliance and the component warranty.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eDoes the Tempest Horizontal HP meet BUS (Boiler Upgrade Scheme) cylinder requirements?\u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003e\n      The Boiler Upgrade Scheme (BUS) requires that heat pump installations include a \u003cstrong\u003ecorrectly sized heat pump cylinder\u003c\/strong\u003e with an appropriately sized coil for heat pump operation. The Tempest HP Horizontal — with its 2–3 m² purpose-designed HP coil and factory-fitted immersion — meets the technical requirements for use within BUS-funded installations, provided it is correctly sized for the property and paired with an MCS-certified heat pump by an MCS-certified installer. Always confirm specific BUS eligibility with your installer.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Telford","offers":[{"title":"170L","offer_id":62934376186205,"sku":"TSMI170H\/HP","price":1120.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":62934376218973,"sku":"TSMI200H\/HP","price":1250.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":62934376251741,"sku":"TSMI250H\/HP","price":1350.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":62934376284509,"sku":"TSMI300H\/HP","price":1475.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempesthorizontalheatpumpcylinderinaloftukhome.jpg?v=1766131038"},{"product_id":"samsung-mono-climatehub-200l-storage-tank-single-phase","title":"Samsung Mono ClimateHub 200L Storage Tank - Single Phase","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung EHS Mono ClimateHub 1‑Phase 200L Storage Tank\u003c\/strong\u003e (MPN \u003cstrong\u003eAE200CNWMEG\/EU\u003c\/strong\u003e) is an all‑in‑one indoor hydro unit and 200L domestic hot‑water tank for Samsung EHS Mono R290 systems, combining cylinder, hydraulics, controls and integrated Wi‑Fi in a single slimline floor‑standing unit.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll‑in‑one indoor unit\u003c\/strong\u003e – integrates 200L stainless‑steel DHW cylinder, hydro unit, pump, expansion vessel and electric backup heater in a single compact cabinet for neat plant‑room layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Wi‑Fi \u0026amp; smart control\u003c\/strong\u003e – built‑in Wi‑Fi module enables connection to Samsung SmartThings \/ AI Home for app‑based control, scheduling and energy monitoring when connected to the internet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle‑phase supply\u003c\/strong\u003e – designed for 230V 50Hz single‑phase operation, pairing with single‑phase Samsung EHS Mono R290 outdoor units in typical UK domestic installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh‑temperature operation\u003c\/strong\u003e – works with R290 EHS Mono units to deliver high DHW temperatures suitable for cylinders, with integrated booster heater to support hot water in extreme conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact ClimateHub format\u003c\/strong\u003e – approximately 595mm wide and 1800mm high, allowing installation alongside other appliances and within standard utility spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e AE200CNWMEG\/EU (EHS Mono ClimateHub 200L, 1‑phase, integrated Wi‑Fi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 200L domestic hot‑water accumulator in SUS 316L stainless steel for high corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e 230V, 50Hz, single‑phase connection for the hydro unit, pumps, controls and backup heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup heater:\u003c\/strong\u003e integrated electric booster heater (typically 2–6kW, model‑dependent) to support DHW and space‑heating in peak load or emergency operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e around 128–130kg empty and approximately 330–340kg when full.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e roughly 595mm × 1800mm × 700mm, with a slim footprint that fits in line with standard white‑goods depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder warranty:\u003c\/strong\u003e typically up to 7 years on the tank (and 2 years on other components) subject to Samsung terms and proper installation\/commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHydraulic \u0026amp; System Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated hydraulics:\u003c\/strong\u003e includes brazed plate heat exchanger, circulation pump and expansion vessel for the heating circuit, reducing the need for separate internal components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHW production:\u003c\/strong\u003e 200L internal cylinder with high‑efficiency heat exchanger, designed to work with EHS Mono R290 units for rapid hot‑water recovery and good DHW efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise \u0026amp; comfort:\u003c\/strong\u003e designed to pair with outdoor units featuring multi‑stage quiet modes, supporting low overall system noise in residential applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConnectivity \u0026amp; Control\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi‑Fi and app control:\u003c\/strong\u003e integrated Wi‑Fi allows remote monitoring, mode selection and scheduling via Samsung SmartThings \/ Samsung climate apps, including viewing energy usage trends where supported.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem integration:\u003c\/strong\u003e designed to work with Samsung room controllers (such as MWR‑WW10N) and AI Home panels, and to interface with smart grids and PV‑linked control strategies on compatible systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible outdoor units:\u003c\/strong\u003e intended for use with Samsung EHS Mono R290 single‑phase outdoor units (for example AE050CXYDEK\/EU, AE080CXYDEK\/EU, AE120CXYDEK\/EU) to create a complete heating and hot‑water package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical properties:\u003c\/strong\u003e suitable for small to medium‑sized homes requiring an integrated 200L DHW store and compact internal plant, especially where clean aesthetics and connected control are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62934825468253,"sku":"AE200CNWMEG","price":2995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsungEHSMonoClimateHubStorageTank.jpg?v=1766135216"},{"product_id":"samsung-mono-climatehub-260l-storage-tank-single-phase","title":"Samsung Mono ClimateHub 260L Storage Tank - Single Phase","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung EHS Mono ClimateHub 1‑Phase 260L Storage Tank\u003c\/strong\u003e (MPN \u003cstrong\u003eAE260CNWMEG\/EU\u003c\/strong\u003e) is a tank‑integrated indoor hydro unit with a 260L domestic hot‑water cylinder, factory‑mounted hydraulics and \u003cstrong\u003eintegrated Wi‑Fi\u003c\/strong\u003e, designed to pair with Samsung EHS Mono R290 single‑phase outdoor units for space heating, cooling and hot water.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e260L integrated DHW tank\u003c\/strong\u003e – large 260‑litre stainless‑steel hot‑water store sized for medium to larger dwellings with higher domestic hot‑water demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank‑integrated hydro unit\u003c\/strong\u003e – combines cylinder, brazed plate heat exchanger, circulation pump, primary expansion vessel and controls in a single compact floor‑standing appliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Wi‑Fi\u003c\/strong\u003e – built‑in Wi‑Fi module enables direct connection to Samsung SmartThings for app‑based control, monitoring, scheduling and energy‑use visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle‑phase operation\u003c\/strong\u003e – indoor unit powered from a 230V, 50Hz, single‑phase supply, matching single‑phase Samsung EHS Mono R290 outdoor units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh‑temperature capable\u003c\/strong\u003e – designed for use with R290 EHS Mono systems that can deliver high flow temperatures suitable for radiators and high‑temperature DHW production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e – slim cabinet (approx. 595mm wide, 1800mm high, 700mm deep) for straightforward installation in plant rooms, utilities or larger cupboards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e AE260CNWMEG\/EU (EHS Mono ClimateHub 260L, 1‑phase, integrated Wi‑Fi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 260L nominal domestic hot‑water volume, with internal heat‑exchange coil\/plate sized for heat‑pump operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply (indoor):\u003c\/strong\u003e 220–240V, 50Hz, 1‑phase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup heater:\u003c\/strong\u003e integrated electric backup resistor (typically 2kW or 6kW depending on configuration) for DHW and space‑heating support in peak load or emergency mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy efficiency:\u003c\/strong\u003e indoor unit designed to achieve high system ErP performance when matched with compatible Samsung EHS Mono outdoor units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e approximately 595 × 1800 × 700mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHydraulic \u0026amp; System Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated hydraulics:\u003c\/strong\u003e high‑efficiency brazed plate heat exchanger, variable‑speed circulation pump and primary expansion tank are factory‑mounted for rapid installation and simplified pipework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHW performance:\u003c\/strong\u003e large 260L cylinder volume supports multiple bathrooms and higher draw‑off rates when combined with suitable reheat from the heat pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet system operation:\u003c\/strong\u003e designed to pair with EHS Mono units featuring multi‑step quiet modes, helping whole‑system sound levels meet residential noise requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConnectivity \u0026amp; Smart Control\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartThings integration:\u003c\/strong\u003e integrated Wi‑Fi allows remote control via Samsung SmartThings, including on\/off control, mode selection, scheduling and viewing operating information.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced energy functions:\u003c\/strong\u003e compatible system features include PV‑enabled operation, Smart Grid readiness and two‑zone temperature control when supported by the chosen outdoor unit and controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal interfaces:\u003c\/strong\u003e works with Samsung touch controllers (for example AI Home or wired room controllers) for on‑site configuration and daily user interaction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible outdoor units:\u003c\/strong\u003e intended for use with Samsung EHS Mono R290 single‑phase outdoor units (such as 5kW, 8kW and 12kW models) to form a complete, packaged heating and hot‑water system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical properties:\u003c\/strong\u003e ideal for medium to larger homes that require generous hot‑water storage, integrated hydraulics and smart, connected control in a single neat indoor unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62934910370141,"sku":"AE260CNWMEG","price":3130.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsungEHSMonoClimateHubStorageTank.jpg?v=1766135216"},{"product_id":"samsung-mono-climatehub-260l-storage-tank-three-phase","title":"Samsung Mono ClimateHub 260L Storage Tank - Three Phase","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung EHS Mono ClimateHub 1‑Phase 260L Storage Tank\u003c\/strong\u003e (MPN \u003cstrong\u003eAE260CNWMEG\/EU\u003c\/strong\u003e) is a tank‑integrated indoor hydro unit with a 260L domestic hot‑water cylinder, factory‑mounted hydraulics and \u003cstrong\u003eintegrated Wi‑Fi\u003c\/strong\u003e, designed to pair with Samsung EHS Mono R290 single‑phase outdoor units for space heating, cooling and hot water.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e260L integrated DHW tank\u003c\/strong\u003e – large 260‑litre stainless‑steel hot‑water store sized for medium to larger dwellings with higher domestic hot‑water demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank‑integrated hydro unit\u003c\/strong\u003e – combines cylinder, brazed plate heat exchanger, circulation pump, primary expansion vessel and controls in a single compact floor‑standing appliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Wi‑Fi\u003c\/strong\u003e – built‑in Wi‑Fi module enables direct connection to Samsung SmartThings for app‑based control, monitoring, scheduling and energy‑use visibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle‑phase operation\u003c\/strong\u003e – indoor unit powered from a 230V, 50Hz, single‑phase supply, matching single‑phase Samsung EHS Mono R290 outdoor units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh‑temperature capable\u003c\/strong\u003e – designed for use with R290 EHS Mono systems that can deliver high flow temperatures suitable for radiators and high‑temperature DHW production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e – slim cabinet (approx. 595mm wide, 1800mm high, 700mm deep) for straightforward installation in plant rooms, utilities or larger cupboards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e AE260CNWMEG\/EU (EHS Mono ClimateHub 260L, 1‑phase, integrated Wi‑Fi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 260L nominal domestic hot‑water volume, with internal heat‑exchange coil\/plate sized for heat‑pump operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply (indoor):\u003c\/strong\u003e 220–240V, 50Hz, 1‑phase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackup heater:\u003c\/strong\u003e integrated electric backup resistor (typically 2kW or 6kW depending on configuration) for DHW and space‑heating support in peak load or emergency mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy efficiency:\u003c\/strong\u003e indoor unit designed to achieve high system ErP performance when matched with compatible Samsung EHS Mono outdoor units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W × H × D):\u003c\/strong\u003e approximately 595 × 1800 × 700mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHydraulic \u0026amp; System Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated hydraulics:\u003c\/strong\u003e high‑efficiency brazed plate heat exchanger, variable‑speed circulation pump and primary expansion tank are factory‑mounted for rapid installation and simplified pipework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHW performance:\u003c\/strong\u003e large 260L cylinder volume supports multiple bathrooms and higher draw‑off rates when combined with suitable reheat from the heat pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet system operation:\u003c\/strong\u003e designed to pair with EHS Mono units featuring multi‑step quiet modes, helping whole‑system sound levels meet residential noise requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConnectivity \u0026amp; Smart Control\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartThings integration:\u003c\/strong\u003e integrated Wi‑Fi allows remote control via Samsung SmartThings, including on\/off control, mode selection, scheduling and viewing operating information.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced energy functions:\u003c\/strong\u003e compatible system features include PV‑enabled operation, Smart Grid readiness and two‑zone temperature control when supported by the chosen outdoor unit and controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal interfaces:\u003c\/strong\u003e works with Samsung touch controllers (for example AI Home or wired room controllers) for on‑site configuration and daily user interaction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible outdoor units:\u003c\/strong\u003e intended for use with Samsung EHS Mono R290 single‑phase outdoor units (such as 5kW, 8kW and 12kW models) to form a complete, packaged heating and hot‑water system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical properties:\u003c\/strong\u003e ideal for medium to larger homes that require generous hot‑water storage, integrated hydraulics and smart, connected control in a single neat indoor unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62934916956509,"sku":"AE260CNWMGG","price":3700.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsungEHSMonoClimateHubStorageTank.jpg?v=1766135216"},{"product_id":"samsung-optional-4kw-tank-backup-heater-for-climate-hub","title":"Samsung Optional 4kW Tank Backup Heater for Climate Hub","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung Optional 4kW Tank Backup Heater for Climate Hub\u003c\/strong\u003e (model \u003cstrong\u003eMHC‑400FE\u003c\/strong\u003e) is an auxiliary electric immersion heater designed to increase hot‑water and heating backup capacity in compatible Samsung ClimateHub tanks, providing additional resilience in cold weather and during peak demand.\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MHC‑400FE Optional Tank Backup Heater for Samsung ClimateHub (4kW).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e electric immersion‑type backup heater module for tank‑integrated ClimateHub systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower rating:\u003c\/strong\u003e 4kW single‑phase backup heater, typically powered from a 230V AC supply via a suitably rated circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e used with Samsung ClimateHub 1.5 Mono (R32\/R290) and compatible ClimateHub tanks to supplement the built‑in booster heater when conditions or loads demand it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra heating capacity\u003c\/strong\u003e – provides an additional 4kW of electric heating, helping maintain DHW temperature and supporting space‑heating output during very low outdoor temperatures or high load periods.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimised for ClimateHub\u003c\/strong\u003e – specifically designed as an optional accessory for Samsung ClimateHub tanks, with appropriate physical and electrical compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegionella support\u003c\/strong\u003e – works alongside the tank’s existing immersion\/booster heater to help achieve periodic high‑temperature cycles for hygienic operation and legionella protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and lightweight\u003c\/strong\u003e – low installed weight (approx. 2kg, around 3.3kg gross with packaging) for easy handling and installation in tight plant spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel number \/ MPN:\u003c\/strong\u003e MHC‑400FE.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower output:\u003c\/strong\u003e 4kW nominal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical:\u003c\/strong\u003e single‑phase 230V operation (installer must provide appropriately rated protective devices and cabling in line with local regulations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 1.95kg net; around 3.3kg including packaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e tank backup heater \/ auxiliary heater for ClimateHub.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e typically 2‑year manufacturer’s warranty, subject to Samsung terms and correct installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN \/ EAN:\u003c\/strong\u003e 8806090050046.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e intended only for use with compatible Samsung ClimateHub tanks (such as ClimateHub 1.5 Mono R32\/R290 units) that provide the correct boss, wiring provision and control logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e installs into the designated immersion\/backup heater port on the ClimateHub tank, with electrical connection to the dedicated backup‑heater terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e operation is managed by the ClimateHub’s internal controller, which can call on the backup heater automatically based on temperature, load, or defined backup logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62934971613533,"sku":"MHC‑400FE","price":470.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsubngBackupHeater3kW.png?v=1766137816"},{"product_id":"samsung-6kw-tank-backup-heater-for-climate-hub","title":"Samsung 6kW Tank Backup Heater for Climate Hub","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung Optional 6kW Tank Backup Heater for Climate Hub\u003c\/strong\u003e (MPN \u003cstrong\u003eMHC‑600FE\u003c\/strong\u003e) is a high‑output electric auxiliary heater designed to provide an additional 6kW of backup or booster capacity for compatible Samsung ClimateHub tanks, enhancing resilience in cold climates and high‑demand applications.\u003c\/p\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MHC‑600FE Optional Tank Backup Heater for Samsung ClimateHub.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e electric auxiliary \/ backup immersion heater for ClimateHub hot‑water tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower rating:\u003c\/strong\u003e 6kW backup heater for rapid DHW reheating and strong backup heating support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse with:\u003c\/strong\u003e Samsung ClimateHub v1.5 and compatible ClimateHub tank systems as an optional upgrade to the built‑in electric heater capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh backup capacity\u003c\/strong\u003e – 6kW of electric heating provides robust support during extreme cold, high DHW draw‑off or if the outdoor heat pump is limited or unavailable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimateHub‑optimised\u003c\/strong\u003e – specifically intended for Samsung ClimateHub tanks, with mechanical and control compatibility for seamless integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport for emergency mode\u003c\/strong\u003e – allows the ClimateHub system to maintain heating and hot water on electric backup if the heat pump is in fault or offline, when configured in the controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegionella and high‑temp cycles\u003c\/strong\u003e – assists the system in achieving high‑temperature sterilisation cycles for DHW hygiene where required by design or regulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e MHC‑600FE.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower output:\u003c\/strong\u003e 6kW nominal backup capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase configuration:\u003c\/strong\u003e supports three‑phase operation (intended primarily for 3‑phase ClimateHub\/heat pump installations; electrical design must follow Samsung documentation and local regulations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication class:\u003c\/strong\u003e tank backup heater accessory for Samsung ClimateHub hot‑water cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical installation weight:\u003c\/strong\u003e light, immersion‑style element suitable for mounting directly into the designated tank port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation \u0026amp; Integration\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e only for compatible Samsung ClimateHub tanks that provide the correct boss, wiring terminals and control options for the 6kW backup heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical fit:\u003c\/strong\u003e installs into the dedicated backup‑heater connection point on the ClimateHub tank in accordance with Samsung’s installation instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical connection:\u003c\/strong\u003e must be wired to the appropriate backup‑heater terminals and protective devices sized for 6kW operation, by a qualified electrician\/installer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl logic:\u003c\/strong\u003e operation is managed by the ClimateHub controller, which can call the backup heater automatically for support, emergency running or legionella cycles as configured.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62935005331805,"sku":"MHC‑600FE","price":535.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsubngBackupHeater3kW.png?v=1766137816"},{"product_id":"samsung-mono-1-phase-hydro-unit-1-zone","title":"Samsung Mono 1‑Phase Hydro Unit – 1 Zone","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSamsung Mono 1‑Phase Hydro Unit – 1 Zone\u003c\/strong\u003e (MPN \u003cstrong\u003eAE160DNYMPK\/EU\u003c\/strong\u003e) is a compact wall‑mounted indoor hydro unit for Samsung EHS Mono R290 heat pumps, providing all primary hydraulics, controls, Wi‑Fi and a 7″ touch display for a single heating zone when used with a separate third‑party hot‑water cylinder.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydro unit only:\u003c\/strong\u003e indoor wall‑mounted hydro module without an integrated DHW tank, designed to work with an external unvented cylinder of your choice.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle‑phase system:\u003c\/strong\u003e suitable for 230V 50Hz single‑phase supplies, matching single‑phase Samsung EHS Mono R290 outdoor units from 5kW up to 16kW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1‑zone configuration:\u003c\/strong\u003e factory configured for a single heating zone; a mixing valve and MOS‑T1 2‑zone kit can be added if a second mixed‑temperature zone is required later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Wi‑Fi and 7″ touch control:\u003c\/strong\u003e includes Wi‑Fi connectivity and a 7‑inch colour touch screen (AI‑style controller) for local control, commissioning and SmartThings app integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHydraulic \u0026amp; System Components\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑in circulating pump:\u003c\/strong\u003e high‑efficiency variable‑speed circulation pump sized for the connected EHS Mono R290 outdoor unit range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansion vessel:\u003c\/strong\u003e integrated expansion vessel (around 10L) for the primary heating circuit, reducing the need for additional external vessels in many domestic systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric backup heater:\u003c\/strong\u003e built‑in electric backup\/booster heater (typically 2 + 2kW) providing support for space heating and DHW production in extreme conditions or emergency mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety components:\u003c\/strong\u003e comes with key hydraulic safety items such as safety valve and internal filter\/magnetic filtration to protect the system side of the heat pump circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ MPN:\u003c\/strong\u003e AE160DNYMPK\/EU (EHS Mono Hydro Unit S2, Standard, 1‑zone, 1‑phase).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity range:\u003c\/strong\u003e indoor hydro unit matched to outdoor units from 5kW to 16kW within the Samsung EHS Mono R290 line‑up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply (indoor):\u003c\/strong\u003e 220–240V, 50\/60Hz, single‑phase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature range (system):\u003c\/strong\u003e designed for operation with outdoor temperatures down to around ‑25°C in heating mode (dependent on the matched outdoor unit) and for high leaving‑water temperatures up to 75°C for high‑temperature radiators and DHW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical size:\u003c\/strong\u003e compact wall‑mount format, approximately 530mm wide × 840mm high × 350mm deep, suitable for utility rooms or plant spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eControl \u0026amp; Connectivity\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 7″ interface:\u003c\/strong\u003e front‑mounted touch screen for commissioning, parameter adjustment, viewing operating data and daily user control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmartThings enabled:\u003c\/strong\u003e built‑in Wi‑Fi allows connection to the Samsung SmartThings platform for remote control, scheduling and access to AI Energy features where available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZoning options:\u003c\/strong\u003e supplied as a standard 1‑zone hydro unit; when adding a mixing valve for a second low‑temperature circuit, the MOS‑T1 2‑Zone Thermistor Kit is required for proper control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e used in split‑type configurations with Samsung EHS Mono R290 outdoor units, providing heating, cooling and DHW (via an external cylinder) through a single 1‑zone hydro module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal installations:\u003c\/strong\u003e properties that already have, or intend to install, a separate DHW cylinder and want a compact, wall‑mounted indoor unit with integrated hydraulics and smart control for a single main heating circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Samsung","offers":[{"title":"Default Title","offer_id":62935069327709,"sku":"AE160DNYMPK","price":2300.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SamsungMono1_PhaseHydroUnit_1Zone.jpg?v=1766139546"},{"product_id":"worcester-bosch-compress-5800i-aw-180l-slim-pre-plumbed-cylinder-indoor-unit","title":"Worcester Bosch Compress 5800i AW 180L Slim Pre-plumbed Cylinder Indoor Unit","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWorcester Bosch Compress 5800i AW 180L Slim Pre-plumbed Cylinder Indoor Unit \u003c\/strong\u003eis a compact, pre-plumbed indoor cylinder designed for integration with the Compress 5800i AW air-to-water heat pump system, providing efficient hot water storage for residential applications.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Compress 5800i AW indoor Pre-plumbed Cylinder unit features a slim 180L pre-plumbed cylinder that minimises installation time and space requirements, making it ideal for modern homes. It includes factory-fitted components like the expansion vessel, pump, and valves for hassle-free setup. With Connect-Key K30 connectivity as standard, this Pre-plumbed Cylinder enables easy commissioning and remote monitoring via the Bosch EasyAir app. This all-in-one solution supports low-GWP R290 refrigerant and delivers reliable DHW up to 65°C, compliant with UK building regulations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-assembled with pump, expansion vessel, and valves for quick installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim footprint:\u003c\/strong\u003e Compact dimensions fit tight spaces like cupboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect-Key K30:\u003c\/strong\u003e Integrated connectivity for app-based setup and monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity:\u003c\/strong\u003e 180L storage for family hot water needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise:\u003c\/strong\u003e Quiet operation with sound diffuser in the outdoor unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP A+++ rated:\u003c\/strong\u003e Energy-efficient for low running costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with R290:\u003c\/strong\u003e Eco-friendly refrigerant for reduced GWP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather optimised:\u003c\/strong\u003e Performs in UK climates down to -25°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WB-7731600271 – Compress 5800i AW 180L Slim Indoor Unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 180 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DHW temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP rating:\u003c\/strong\u003e A+++.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R290 (GWP 3).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Connect-Key K30 (Bluetooth\/WiFi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -25°C to +43°C (system).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise level:\u003c\/strong\u003e \u0026lt;50 dB(A) at 1m.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 400 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 290 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 700 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~50 kg (empty).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for pairing with Compress 5800i AW outdoor unit in space-constrained homes.\u003c\/li\u003e\n\u003cli\u003eCompatible with underfloor heating, radiators, and low-loss headers.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; supports smart controls for efficiency.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified heat pump engineers following Worcester Bosch guidelines.\u003c\/li\u003e\n\u003cli\u003eQualifies for Boiler Upgrade Scheme grants; 7-year warranty on cylinder.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Worcester Bosch","offers":[{"title":"Default Title","offer_id":63346979832157,"sku":"WB-7731600271","price":3050.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WorcesterBoschCompress5800iAWPre-plumbedCylinder.avif?v=1770553711"},{"product_id":"worcester-bosch-compress-5800i-aw-210l-slim-pre-plumbed-cylinder-indoor-unit","title":"Worcester Bosch Compress 5800i AW 210L Slim Pre-plumbed Cylinder Indoor Unit","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWorcester Bosch Compress 5800i AW 210L Pre-plumbed Cylinder Indoor Unit\u003c\/strong\u003e is a compact, pre-plumbed indoor cylinder designed for integration with the Compress 5800i AW air-to-water heat pump system, providing efficient hot water storage for residential applications.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Compress 5800i AW indoor Pre-plumbed Cylinder unit features a 210L pre-plumbed cylinder that minimises installation time and space requirements, making it ideal for modern homes. It includes factory-fitted components like the expansion vessel, pump, and valves for hassle-free setup. With Connect-Key K30 connectivity as standard, this Pre-plumbed Cylinder enables easy commissioning and remote monitoring via the Bosch EasyAir app. This all-in-one solution supports low-GWP R290 refrigerant and delivers reliable DHW up to 65°C, compliant with UK building regulations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-assembled with pump, expansion vessel, and valves for quick installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e Slim dimensions fit tight spaces like cupboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect-Key K30:\u003c\/strong\u003e Integrated connectivity for app-based setup and monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity:\u003c\/strong\u003e 210L storage for family hot water needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise:\u003c\/strong\u003e Quiet operation with sound diffuser in the outdoor unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP A+++ rated:\u003c\/strong\u003e Energy-efficient for low running costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with R290:\u003c\/strong\u003e Eco-friendly refrigerant for reduced GWP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather optimised:\u003c\/strong\u003e Performs in UK climates down to -25°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WB-7731600272 – Compress 5800i AW 210L Indoor Unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 210 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DHW temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP rating:\u003c\/strong\u003e A+++.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R290 (GWP 3).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Connect-Key K30 (Bluetooth\/WiFi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -25°C to +43°C (system).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise level:\u003c\/strong\u003e \u0026lt;50 dB(A) at 1m.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 400 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 290 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 800 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~60 kg (empty).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for pairing with Compress 5800i AW outdoor unit in space-constrained homes.\u003c\/li\u003e\n\u003cli\u003eCompatible with underfloor heating, radiators, and low-loss headers.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; supports smart controls for efficiency.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified heat pump engineers following Worcester Bosch guidelines.\u003c\/li\u003e\n\u003cli\u003eQualifies for Boiler Upgrade Scheme grants; 7-year warranty on cylinder.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Worcester Bosch","offers":[{"title":"Default Title","offer_id":63346990219613,"sku":"WB-7731600272","price":3100.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WorcesterBoschCompress5800iAWPre-plumbedCylinder.avif?v=1770553711"},{"product_id":"worcester-bosch-compress-5800i-aw-250l-slim-pre-plumbed-cylinder-indoor-unit","title":"Worcester Bosch Compress 5800i AW 250L Slim Pre-plumbed Cylinder Indoor Unit","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWorcester Bosch Compress 5800i AW 250L Pre-plumbed Cylinder Indoor Unit\u003c\/strong\u003e is a compact, pre-plumbed indoor cylinder designed for integration with the Compress 5800i AW air-to-water heat pump system, providing efficient hot water storage for residential applications.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe Compress 5800i AW indoor Pre-plumbed Cylinder unit features a 250L pre-plumbed cylinder that minimises installation time and space requirements, making it ideal for modern homes. It includes factory-fitted components like the expansion vessel, pump, and valves for hassle-free setup. With Connect-Key K30 connectivity as standard, this Pre-plumbed Cylinder enables easy commissioning and remote monitoring via the Bosch EasyAir app. This all-in-one solution supports low-GWP R290 refrigerant and delivers reliable DHW up to 65°C, compliant with UK building regulations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-assembled with pump, expansion vessel, and valves for quick installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim footprint:\u003c\/strong\u003e Compact dimensions fit tight spaces like cupboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect-Key K30:\u003c\/strong\u003e Integrated connectivity for app-based setup and monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity:\u003c\/strong\u003e 250L storage for larger family hot water needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise:\u003c\/strong\u003e Quiet operation with sound diffuser in the outdoor unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eERP A+++ rated:\u003c\/strong\u003e Energy-efficient for low running costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with R290:\u003c\/strong\u003e Eco-friendly refrigerant for reduced GWP.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather optimised:\u003c\/strong\u003e Performs in UK climates down to -25°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e WB-7731600273 – Compress 5800i AW 250L Indoor Unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 250 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum DHW temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP rating:\u003c\/strong\u003e A+++.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R290 (GWP 3).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e Connect-Key K30 (Bluetooth\/WiFi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -25°C to +43°C (system).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise level:\u003c\/strong\u003e \u0026lt;50 dB(A) at 1m.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 400 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 290 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 900 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~70 kg (empty).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for pairing with Compress 5800i AW outdoor unit in space-constrained homes.\u003c\/li\u003e\n\u003cli\u003eCompatible with underfloor heating, radiators, and low-loss headers.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; supports smart controls for efficiency.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified heat pump engineers following Worcester Bosch guidelines.\u003c\/li\u003e\n\u003cli\u003eQualifies for Boiler Upgrade Scheme grants; 7-year warranty on cylinder.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Worcester Bosch","offers":[{"title":"Default Title","offer_id":63346995790173,"sku":"WB-7731600273","price":3200.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/WorcesterBoschCompress5800iAWPre-plumbedCylinder.avif?v=1770553711"},{"product_id":"mcdonald-water-storage-170-litre-heat-pump-steelflow-cylinder-with-integrated-30l-buffer","title":"McDonald Water Storage 170 Litre STEELFlow Heat Pump Cylinder with integrated 30L Buffer","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcDonald Water Storage 170 Litre STEELFlow Heat Pump Cylinder with integrated 30L Buffer \u003c\/strong\u003eis a pre-plumbed, unvented stainless steel cylinder designed for air source or ground source heat pumps, featuring an integrated 30L buffer tank for enhanced system performance and efficiency.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe STEELflow Heat Pump Cylinder is manufactured from duplex stainless steel for superior corrosion resistance, specifically engineered for low-temperature heat pump applications. With a 170L main cylinder and integrated 30L buffer, it optimises flow rates and reduces cycling, improving overall system efficiency. Pre-plumbed with essential components like expansion vessel, pump, and valves, this STEELFlow Heat Pump Cylinder ensures quick installation and compliance with UK building regulations. Ideal for residential new builds or retrofits, it supports sustainable heating with minimal maintenance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex stainless steel:\u003c\/strong\u003e High-grade material for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 30L buffer:\u003c\/strong\u003e Enhances heat pump performance by stabilising flow and reducing short cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-fitted with pump, expansion vessel, and safety valves for rapid installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnvented mains pressure:\u003c\/strong\u003e Provides high-flow hot water for multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised:\u003c\/strong\u003e Low thermal mass for faster heat-up times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact slimline:\u003c\/strong\u003e Space-saving design for tight locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved:\u003c\/strong\u003e Certified for potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-year warranty:\u003c\/strong\u003e On cylinder body for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e CCS170\/30HPTOTSLIM – STEELflow Heat Pump Cylinder with Buffer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal capacity:\u003c\/strong\u003e 200 litres (170L cylinder + 30L buffer).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 3 bar (cylinder), 6 bar (buffer).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e 50mm CFC-free foam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 22mm primary coil, 15mm secondary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e WRAS approved, UKCA marked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 475 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1660 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (empty):\u003c\/strong\u003e ~35 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (full):\u003c\/strong\u003e ~205 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for air or ground source heat pumps in residential systems requiring buffer storage.\u003c\/li\u003e\n\u003cli\u003eCompatible with most heat pump brands; pre-plumbed for immediate use.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; optimises low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified plumbers following McDonald guidelines; G3 unvented certification required.\u003c\/li\u003e\n\u003cli\u003eEnhances efficiency with integrated buffer; 10-year cylinder warranty, 2-year on components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"McDonald Water Storage","offers":[{"title":"Default Title","offer_id":63347670745437,"sku":"CCS170\/30HPTOTSLIM","price":2170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/McDonaldWaterStorageHeatPumpSTEELFlowCylinderPre-Plumbed.jpg?v=1770562239"},{"product_id":"mcdonald-water-storage-200-litre-heat-pump-steelflow-cylinder-with-integrated-50l-buffer","title":"McDonald Water Storage 200 Litre STEELFlow Heat Pump Cylinder with integrated 50L Buffer","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcDonald Water Storage 200 Litre STEELFlow Heat Pump Cylinder with integrated 50L Buffer \u003c\/strong\u003eis a pre-plumbed, unvented duplex stainless steel cylinder designed for air source or ground source heat pumps, featuring an integrated 50L buffer tank for enhanced system performance and efficiency.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe STEELflow Heat Pump Cylinder is manufactured from duplex stainless steel for superior corrosion resistance, specifically engineered for low-temperature heat pump applications. With a 200L main cylinder and integrated 50L buffer, it optimises flow rates and reduces cycling, improving overall system efficiency. Pre-plumbed with essential components like expansion vessel, pump, and valves, this Heat Pump Cylinder ensures quick installation and compliance with UK building regulations. Ideal for residential new builds or retrofits, it supports sustainable heating with minimal maintenance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex stainless steel:\u003c\/strong\u003e High-grade material for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 50L buffer:\u003c\/strong\u003e Enhances heat pump performance by stabilising flow and reducing short cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-fitted with pump, expansion vessel, and safety valves for rapid installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnvented mains pressure:\u003c\/strong\u003e Provides high-flow hot water for multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised:\u003c\/strong\u003e Low thermal mass for faster heat-up times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact slimline:\u003c\/strong\u003e Space-saving design for tight locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved:\u003c\/strong\u003e Certified for potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-year warranty:\u003c\/strong\u003e On cylinder body for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e CCS200\/50HPTOTSLIM – STEELflow Heat Pump Cylinder with Buffer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal capacity:\u003c\/strong\u003e 250 litres (200L cylinder + 50L buffer).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 3 bar (cylinder), 6 bar (buffer).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e 50mm CFC-free foam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 22mm primary coil, 15mm secondary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e WRAS approved, UKCA marked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 475 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1860 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (empty):\u003c\/strong\u003e ~40 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (full):\u003c\/strong\u003e ~240 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for air or ground source heat pumps in residential systems requiring buffer storage.\u003c\/li\u003e\n\u003cli\u003eCompatible with most heat pump brands; pre-plumbed for immediate use.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; optimises low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified plumbers following McDonald guidelines; G3 unvented certification required.\u003c\/li\u003e\n\u003cli\u003eEnhances efficiency with integrated buffer; 10-year cylinder warranty, 2-year on components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"McDonald Water Storage","offers":[{"title":"Default Title","offer_id":63347860898141,"sku":"CCS200\/50HPTOT","price":2300.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/McDonaldWaterStorageHeatPumpSTEELFlowCylinderPre-Plumbed.jpg?v=1770562239"},{"product_id":"mcdonald-300-litre-heat-pump-steelflow-pre-plumbed-cylinder","title":"McDonald 300 Litre Heat Pump STEELflow Pre-Plumbed Cylinder","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcDonald Water Storage 300 Litre Heat Pump STEELflow Pre-Plumbed Cylinder (MPN: STEELPP300)\u003c\/strong\u003e is a pre-plumbed, unvented duplex stainless steel cylinder designed for air source or ground source heat pumps, providing high-capacity hot water storage with integrated components for enhanced system efficiency.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe STEELflow Heat Pump Cylinder is manufactured from duplex stainless steel for superior corrosion resistance, specifically engineered for low-temperature heat pump applications. With a 300L capacity, it optimises flow rates and reduces cycling, improving overall system performance. Pre-plumbed with essential components like expansion vessel, pump, and valves, it ensures quick installation and compliance with UK building regulations. Ideal for larger residential new builds or retrofits, it supports sustainable heating with minimal maintenance and low thermal mass for faster heat-up times.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex stainless steel:\u003c\/strong\u003e High-grade material for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-fitted with pump, expansion vessel, and safety valves for rapid installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnvented mains pressure:\u003c\/strong\u003e Provides high-flow hot water for multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised:\u003c\/strong\u003e Low thermal mass for faster heat-up and better efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e Space-saving for utility rooms or cupboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved:\u003c\/strong\u003e Certified for potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated coil:\u003c\/strong\u003e High-surface area for efficient heat transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-year warranty:\u003c\/strong\u003e On cylinder body for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e STEELPP300 – STEELflow Heat Pump Pre-Plumbed Cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 300 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 3 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e 50mm CFC-free foam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 22mm primary coil, 15mm secondary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e WRAS approved, UKCA marked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 550 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 2100 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (empty):\u003c\/strong\u003e ~50 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (full):\u003c\/strong\u003e ~350 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for air or ground source heat pumps in larger residential systems.\u003c\/li\u003e\n\u003cli\u003eCompatible with most heat pump brands; pre-plumbed for immediate use.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; optimises low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified plumbers following McDonald guidelines; G3 unvented certification required.\u003c\/li\u003e\n\u003cli\u003eEnhances efficiency with pre-plumbed setup; 10-year cylinder warranty, 2-year on components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"McDonald Water Storage","offers":[{"title":"Default Title","offer_id":63348020642141,"sku":"STEELPP300","price":2450.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/McDonaldWaterStorageHeatPumpSTEELFlowCylinderPre-Plumbed.jpg?v=1770562239"},{"product_id":"mcdonald-250-litre-heat-pump-steelflow-pre-plumbed-cylinder","title":"McDonald 250 Litre Heat Pump STEELflow Pre-Plumbed Cylinder","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMcDonald Water Storage 250 Litre Heat Pump STEELflow Pre-Plumbed Cylinder\u003c\/strong\u003e is a pre-plumbed, unvented duplex stainless steel cylinder designed for air source or ground source heat pumps, providing high-capacity hot water storage with integrated components for enhanced system efficiency.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe STEELflow Heat Pump Cylinder is manufactured from duplex stainless steel for superior corrosion resistance, specifically engineered for low-temperature heat pump applications. With a 250L capacity, it optimises flow rates and reduces cycling, improving overall system performance. Pre-plumbed with essential components like expansion vessel, pump, and valves, it ensures quick installation and compliance with UK building regulations. Ideal for larger residential new builds or retrofits, it supports sustainable heating with minimal maintenance and low thermal mass for faster heat-up times.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex stainless steel:\u003c\/strong\u003e High-grade material for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed design:\u003c\/strong\u003e Factory-fitted with pump, expansion vessel, and safety valves for rapid installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnvented mains pressure:\u003c\/strong\u003e Provides high-flow hot water for multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised:\u003c\/strong\u003e Low thermal mass for faster heat-up and better efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact design:\u003c\/strong\u003e Space-saving for utility rooms or cupboards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved:\u003c\/strong\u003e Certified for potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated coil:\u003c\/strong\u003e High-surface area for efficient heat transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-year warranty:\u003c\/strong\u003e On cylinder body for long-term reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e STEELPP250 – STEELflow Heat Pump Pre-Plumbed Cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 250 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Duplex stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 3 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e 50mm CFC-free foam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 22mm primary coil, 15mm secondary.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e WRAS approved, UKCA marked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 550 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1960 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (empty):\u003c\/strong\u003e ~45 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (full):\u003c\/strong\u003e ~295 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for air or ground source heat pumps in larger residential systems.\u003c\/li\u003e\n\u003cli\u003eCompatible with most heat pump brands; pre-plumbed for immediate use.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; optimises low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified plumbers following McDonald guidelines; G3 unvented certification required.\u003c\/li\u003e\n\u003cli\u003eEnhances efficiency with pre-plumbed setup; 10-year cylinder warranty, 2-year on components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"McDonald Water Storage","offers":[{"title":"Default Title","offer_id":63348032340317,"sku":"STEELPP250","price":2350.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/McDonaldWaterStorageHeatPumpSTEELFlowCylinderPre-Plumbed.jpg?v=1770562239"},{"product_id":"mitsubishi-ecodan-150l-pre-plumbed-slimline-cylinder-ehpt15x-ukhldw","title":"Mitsubishi ECODAN 150L Pre-Plumbed Slimline Cylinder - EHPT15X-UKHLDW","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMitsubishi 150L R32 1Ph Mono Pre-Plumbed Cylinder Slimline Wifi EHPT15X-UKHLDW\u003c\/strong\u003e is a compact, pre-plumbed slimline unvented hot water cylinder designed for integration with Mitsubishi Ecodan R32 monobloc air source heat pumps, providing efficient domestic hot water (DHW) storage with WiFi connectivity for remote control.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThe EHPT15X-UKHLDW is a self-contained, plug-and-play pre-plumbed DHW cylinder optimised for Ecodan R32 1-phase monobloc units, featuring a slimline design for space-constrained installations. It includes factory-fitted components like the Flow Temperature Controller (FTC6), main controller, temperature sensors, magnetic \u0026amp; cyclonic filter, and pumps for rapid setup. With premium insulation for minimal heat loss and flexible 2-zone space heating control, it supports efficient, rapid heating up to 65°C. WiFi-enabled for remote monitoring via the MELCloud app, it ensures low maintenance and compliance with UK regulations.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-plumbed slimline:\u003c\/strong\u003e Factory-assembled with FTC6 controller, sensors, filter, and pumps for quick installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi connectivity:\u003c\/strong\u003e MELCloud app for remote control, monitoring, and diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel construction:\u003c\/strong\u003e Durable and corrosion-resistant for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnvented mains pressure:\u003c\/strong\u003e High-flow hot water for multiple outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat pump optimised:\u003c\/strong\u003e Low thermal mass for faster heat-up and energy efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated filtration:\u003c\/strong\u003e Magnetic \u0026amp; cyclonic filter protects system from debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-zone control:\u003c\/strong\u003e Flexible space heating management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS approved:\u003c\/strong\u003e Certified for potable water systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e EHPT15X-UKHLDW – 150L Slimline Pre-Plumbed Cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 150 litres.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum pressure:\u003c\/strong\u003e 3 bar.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum temperature:\u003c\/strong\u003e 65 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation:\u003c\/strong\u003e Premium foam for low heat loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e WiFi via MELCloud app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController:\u003c\/strong\u003e FTC6 with temperature sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e WRAS approved, UKCA marked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions \u0026amp; Weights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 475 mm (slimline).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1500 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (empty):\u003c\/strong\u003e ~40 kg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (full):\u003c\/strong\u003e ~190 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for Mitsubishi Ecodan R32 1-phase monobloc heat pumps in residential systems.\u003c\/li\u003e\n\u003cli\u003eCompatible with underfloor heating or radiators; supports 2-zone control.\u003c\/li\u003e\n\u003cli\u003eSuitable for new builds and retrofits; optimises low-temperature systems.\u003c\/li\u003e\n\u003cli\u003eInstallation by qualified plumbers following Mitsubishi guidelines; G3 unvented certification required.\u003c\/li\u003e\n\u003cli\u003eEnhances efficiency with pre-plumbed setup; 5-year cylinder warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":63348146536797,"sku":"EHPT15X-UKHLDW","price":3230.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/MitsubishiECODAN150LPre-PlumbedStandardCylinder-22mmEHPT15X-UKHEWS.webp?v=1770563780"},{"product_id":"oso-optima-ogc300-combined-heat-pump-cylinder-buffer-tank-225l-dhw-65l-buffer","title":"OSO Optima OGC300 Combined Heat Pump Cylinder \u0026 Buffer Tank | 225L DHW + 65L Buffer","description":"\u003cstyle\u003e\n ── Reset ── ,\n.qh-pd, .qh-pd *::before, .qh-pd *::after { box-sizing: border-box; margin: 0; padding: 0; }\n.qh-pd { font-family: inherit; font-size: 16px; line-height: 1.65; color: #1a1a1a; }\n\n ── Brand tokens ── ,\n Primary #008377 | Dark #005f55 | Light bg #e6f4f3 | Amber #f4a921 | Warn #e65100 | Blue #1565c0 ,\n\n ── Badges ── ,\n.qh-pd .badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 1.25rem; }\n.qh-pd .badge { display: inline-block; font-size: 11px; font-weight: 700; border-radius: 4px;\n  padding: 3px 10px; letter-spacing: 0.05em; text-transform: uppercase; }\n.qh-pd .b-teal    { background: #008377; color: #fff; }\n.qh-pd .b-dark    { background: #005f55; color: #fff; }\n.qh-pd .b-amber   { background: #f4a921; color: #1a1a1a; }\n.qh-pd .b-grey    { background: #555;    color: #fff; }\n.qh-pd .b-blue    { background: #1565c0; color: #fff; }\n.qh-pd .b-outline { background: transparent; color: #008377; border: 1.5px solid #008377; }\n\n ── Section label ── ,\n.qh-pd .section-label {\n  font-size: 10.5px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase;\n  color: #008377; margin-bottom: 0.55rem; margin-top: 1.7rem;\n  padding-bottom: 4px; border-bottom: 2px solid #008377; }\n\n ── Intro text ── ,\n.qh-pd .prod-desc { font-size: 15.5px; color: #2a2a2a; margin-bottom: 1.4rem; line-height: 1.8; }\n.qh-pd .prod-desc strong { color: #005f55; }\n\n ── Feature list ── ,\n.qh-pd .feat-list { list-style: none; margin-bottom: 1.4rem; padding: 0; }\n.qh-pd .feat-list li { padding: 5px 0 5px 22px; position: relative; font-size: 15px; line-height: 1.65; }\n.qh-pd .feat-list li::before { content: \"✓\"; position: absolute; left: 0;\n  color: #008377; font-weight: 800; font-size: 15px; }\n Bold hook styling — inherits from inline \u003cstrong\u003e ,\n.qh-pd .feat-list li strong { color: #005f55; }\n\n ── Variant spec table ── ,\n.qh-pd .table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 1.5rem; }\n.qh-pd .spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 420px; }\n.qh-pd .spec-table th, .qh-pd .spec-table td { padding: 7px 11px; border-bottom: 1px solid #d4eeeb; vertical-align: top; }\n.qh-pd .spec-table thead th { background: #005f55; color: #fff; font-weight: 700; text-align: left; }\n.qh-pd .spec-table thead th:first-child { min-width: 200px; }\n.qh-pd .spec-table tbody tr:nth-child(even) td { background: #e6f4f3; }\n.qh-pd .spec-table tbody tr:nth-child(odd)  td { background: #fff; }\n.qh-pd .spec-table tbody td:first-child { font-weight: 600; color: #005f55; }\n\n ── Split spec table (DHW vs Buffer) ── ,\n.qh-pd .spec-table thead th.col-dhw  { background: #007a6e; }\n.qh-pd .spec-table thead th.col-buf  { background: #3a7c73; }\n\n ── Callouts ── ,\n.qh-pd .callout { padding: 0.85rem 1.15rem; border-radius: 0 6px 6px 0; margin: 0.9rem 0;\n  font-size: 14.5px; line-height: 1.7; }\n.qh-pd .callout-teal  { background: #e6f4f3; border-left: 4px solid #008377; color: #00443d; }\n.qh-pd .callout-amber { background: #fef8ec; border-left: 4px solid #f4a921; color: #4a3000; }\n.qh-pd .callout-warn  { background: #fff3e0; border-left: 4px solid #e65100; color: #4a1800; }\n.qh-pd .callout-blue  { background: #e8f4fd; border-left: 4px solid #1565c0; color: #0a2a50; }\n\n ── Steps (flexbox — Shopify safe) ── ,\n.qh-pd .steps { list-style: none; padding: 0; margin-bottom: 1.4rem; counter-reset: step; }\n.qh-pd .steps li { counter-increment: step; display: flex; align-items: flex-start; gap: 0.85rem;\n  padding: 0.75rem; border-radius: 6px; margin-bottom: 0.5rem;\n  font-size: 14.5px; line-height: 1.7; background: #fff; border: 1px solid #d4eeeb; }\n.qh-pd .steps li::before { content: counter(step);\n  display: flex; align-items: center; justify-content: center;\n  flex: 0 0 28px; width: 28px; height: 28px; min-width: 28px; border-radius: 50%;\n  background: #008377; color: #fff; font-size: 13px; font-weight: 800; line-height: 1; margin-top: 3px; }\n.qh-pd .steps li strong { color: #005f55; }\n\n ── FAQ ── ,\n.qh-pd .faq-item { border-bottom: 1px solid #d4eeeb; padding: 0.85rem 0; }\n.qh-pd .faq-item:last-child { border-bottom: none; }\n.qh-pd .faq-q { font-size: 14.5px; font-weight: 700; color: #005f55;\n  padding-left: 1.4rem; position: relative; }\n.qh-pd .faq-q::before { content: \"Q\"; position: absolute; left: 0; color: #008377; font-weight: 900; }\n.qh-pd .faq-a { font-size: 14px; color: #2a2a2a; margin-top: 0.4rem; padding-left: 1.4rem; line-height: 1.7; }\n\n ── Box grid (what's included) ── ,\n.qh-pd .box-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));\n  gap: 0.6rem; margin-bottom: 1.4rem; }\n.qh-pd .box-item { background: #e6f4f3; border: 1px solid #b2dcd8; border-radius: 6px;\n  padding: 0.6rem 0.75rem; font-size: 13.5px; color: #00443d;\n  display: flex; align-items: flex-start; gap: 0.4rem; }\n.qh-pd .box-item::before { content: \"✔\"; color: #008377; font-weight: 900; flex-shrink: 0; margin-top: 1px; }\n\n ── Benefit strip (4-column) ── ,\n.qh-pd .benefit-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px,1fr));\n  gap: 0.6rem; margin-bottom: 1.4rem; }\n.qh-pd .benefit-card { background: #005f55; color: #fff; border-radius: 6px;\n  padding: 0.75rem 0.9rem; font-size: 13px; line-height: 1.5; }\n.qh-pd .benefit-card .bc-title { font-weight: 800; font-size: 13.5px; color: #7fe8df;\n  margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.04em; }\n\n ── Adv pills ── ,\n.qh-pd .adv-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.4rem; }\n.qh-pd .adv-pill { background: #005f55; color: #fff; border-radius: 20px;\n  padding: 5px 14px; font-size: 13px; font-weight: 700; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"qh-pd\"\u003e\n\n\u003c!-- BADGES --\u003e\n\u003cdiv class=\"badge-row\"\u003e\n  \u003cspan class=\"badge b-teal\"\u003eHeat Pump Cylinder\u003c\/span\u003e\n  \u003cspan class=\"badge b-dark\"\u003e225L DHW + 65L Buffer\u003c\/span\u003e\n  \u003cspan class=\"badge b-amber\"\u003eSingle Footprint\u003c\/span\u003e\n  \u003cspan class=\"badge b-teal\"\u003eEnergy Rating A\/A\u003c\/span\u003e\n  \u003cspan class=\"badge b-blue\"\u003e36.5 kW Coil Output\u003c\/span\u003e\n  \u003cspan class=\"badge b-grey\"\u003eUp to 15 kW Heat Pump\u003c\/span\u003e\n  \u003cspan class=\"badge b-outline\"\u003e10-Year Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003c!-- INTRO --\u003e\n\u003cp class=\"prod-desc\"\u003eThe OSO Optima OGC300 is a unique \u003cstrong\u003ecombined domestic hot water cylinder and buffer\/volumiser tank in a single footprint\u003c\/strong\u003e, purpose-built for air source and ground source heat pump installations. Rather than requiring a separate cylinder and buffer tank with linking pipework between them, the OGC300 integrates a \u003cstrong\u003e225-litre DHW cylinder (upper section)\u003c\/strong\u003e and a \u003cstrong\u003e65-litre buffer\/volumiser vessel (lower section)\u003c\/strong\u003e within a single insulated stainless steel casing, 595mm in diameter and 1,776mm tall. This dramatically reduces the space, pipework, and labour required compared to a conventional two-tank heat pump system. The buffer pre-heats the DHW cylinder continuously, which keeps the heat pump's Coefficient of Performance (COP) high by maintaining a steady load. When domestic hot water is called for, the heat pump reaches the required temperature faster because the cylinder is never fully cold — reducing the time the property is deprived of space heating during DHW mode. The OGC300 can serve heat pumps up to 15 kW output, supports a 36.5 kW rated coil, and is backed by a \u003cstrong\u003e10-year cylinder warranty\u003c\/strong\u003e. A 2.8 kW INCOTEC backup immersion heater — connectable to solar PV — provides supplementary DHW heating when required.\u003c\/p\u003e\n\n\u003c!-- 4-CARD BENEFIT STRIP --\u003e\n\u003cdiv class=\"section-label\"\u003eThe Four Key Advantages\u003c\/div\u003e\n\u003cdiv class=\"benefit-strip\"\u003e\n  \u003cdiv class=\"benefit-card\"\u003e\n    \u003cdiv class=\"bc-title\"\u003eSpace Saving\u003c\/div\u003e\n    One unit replaces a separate cylinder and buffer tank — halving the footprint and eliminating inter-tank pipework.\n  \u003c\/div\u003e\n  \u003cdiv class=\"benefit-card\"\u003e\n    \u003cdiv class=\"bc-title\"\u003eCost Saving\u003c\/div\u003e\n    Lower installation cost than buying two separate tanks, less labour, fewer fittings, and simpler pipework routing.\n  \u003c\/div\u003e\n  \u003cdiv class=\"benefit-card\"\u003e\n    \u003cdiv class=\"bc-title\"\u003eHigher Efficiency\u003c\/div\u003e\n    Buffer pre-heating keeps the heat pump COP high and reduces heat loss from exposed inter-tank pipework.\n  \u003c\/div\u003e\n  \u003cdiv class=\"benefit-card\"\u003e\n    \u003cdiv class=\"bc-title\"\u003eGreater Comfort\u003c\/div\u003e\n    Pre-warmed DHW cylinder means shorter DHW-mode cycles — less time without space heating, faster hot water delivery.\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- KEY FEATURES --\u003e\n\u003cdiv class=\"section-label\"\u003eKey Features\u003c\/div\u003e\n\u003cul class=\"feat-list\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-footprint, two-tank design\u003c\/strong\u003e — 225L DHW cylinder and 65L buffer\/volumiser in one 595mm diameter unit, eliminating a separate buffer tank and all the pipework between them\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-heating keeps COP high\u003c\/strong\u003e — the buffer continuously pre-warms the DHW cylinder, maintaining a steady heat pump load, avoiding cold-start efficiency losses and preserving the optimal Coefficient of Performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShorter DHW-mode cycles\u003c\/strong\u003e — because the cylinder is never fully cold, the heat pump reaches the required DHW temperature faster, reducing the time the property goes without space heating\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with heat pumps up to 15 kW\u003c\/strong\u003e — suitable for the majority of domestic ASHP and GSHP systems currently installed in the UK\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e36.5 kW rated heating coil\u003c\/strong\u003e — high-capacity primary coil for fast heat-up and recovery (19-minute heat-up from 10°C; 13-minute 70% recovery time)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e355-litre effective hot water capacity at 40°C\u003c\/strong\u003e — significantly more usable hot water than the nominal 225L cylinder volume, thanks to OSO's high-temperature stratification\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual A energy ratings\u003c\/strong\u003e — both DHW cylinder (upper) and buffer (lower) achieve ErP A class, supporting Building Regulations compliance and SAP calculations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.8 kW INCOTEC backup immersion heater\u003c\/strong\u003e — provides DHW boost or backup when the heat pump is in maintenance, service, or defrost mode; connectable to solar PV for maximum self-consumption\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSolar PV ready\u003c\/strong\u003e — immersion heater position allows 100% of the DHW cylinder to be heated from solar PV or mains, maximising renewable self-consumption\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNANOPUR + VIP insulation\u003c\/strong\u003e — combination of PUR foam and Vacuum Insulation Panels (VIP) for exceptional standby heat retention, achieving just 45W \/ 1.08 kWh per day (DHW) and 20W \/ 0.74 kWh per day (buffer)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eULTRAWELD stainless steel construction\u003c\/strong\u003e — laser-welded Duplex stainless steel cylinder resists corrosion in all water conditions; 10-year cylinder warranty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eS-DESIGN hidden connections\u003c\/strong\u003e — all pipework connections are concealed, keeping the plant room installation clean and professional\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated G3 Building Regulations kit\u003c\/strong\u003e — 18L expansion vessel, inlet control valve (strainer, PRV, expansion relief), and tundish all factory-fitted, simplifying compliance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeparate pressure circuits\u003c\/strong\u003e — upper DHW cylinder rated to 10 bar; lower buffer circuit rated to 2.5 bar (0.20 MPa), correctly matched to heat pump system pressures\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature sensor slots\u003c\/strong\u003e — two sensor pockets (6mm and 8mm) pre-fitted for heat pump controller compatibility, supporting most ASHP and GSHP control systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTARIFF-READY immersion\u003c\/strong\u003e — backup immersion heater can be connected to off-peak electricity tariffs for cost-effective DHW top-up\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- TECHNOLOGY PILLS --\u003e\n\u003cdiv class=\"section-label\"\u003eOSO Technology Advantages\u003c\/div\u003e\n\u003cdiv class=\"adv-grid\"\u003e\n  \u003cspan class=\"adv-pill\"\u003eS-DESIGN — All Connections Hidden\u003c\/span\u003e\n  \u003cspan class=\"adv-pill\"\u003eNANOPUR + VIP — Premium Insulation\u003c\/span\u003e\n  \u003cspan class=\"adv-pill\"\u003eULTRAWELD — Superior Corrosion Resistance\u003c\/span\u003e\n  \u003cspan class=\"adv-pill\"\u003eINCOTEC — Hard Water Durability\u003c\/span\u003e\n  \u003cspan class=\"adv-pill\"\u003eTARIFF-READY — Solar \u0026amp; Off-Peak Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003c!-- WHAT'S INCLUDED --\u003e\n\u003cdiv class=\"section-label\"\u003eWhat's Included\u003c\/div\u003e\n\u003cdiv class=\"box-grid\"\u003e\n  \u003cdiv class=\"box-item\"\u003eOGC300 combined cylinder\/buffer unit\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003e2.8 kW INCOTEC immersion heater (factory-fitted)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eT\u0026amp;P safety valve — 7 bar \/ 90–95°C (factory-fitted)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003e18L expansion vessel (factory-fitted)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eG3 inlet group kit (strainer, PRV, expansion relief)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eTundish\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eSafety cut-out — upper and lower circuits\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eTemperature sensor pockets × 2 (6mm \u0026amp; 8mm)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eAdjustable feet (factory-fitted, 0–40mm range)\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eStrain relievers × 2\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eInstallation \u0026amp; commissioning manual\u003c\/div\u003e\n  \u003cdiv class=\"box-item\"\u003eService \u0026amp; commissioning logbook\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c!-- HOW IT WORKS --\u003e\n\u003cdiv class=\"section-label\"\u003eHow the OGC300 Works with a Heat Pump\u003c\/div\u003e\n\u003cdiv class=\"callout callout-teal\"\u003e\n  ℹ️ \u003cstrong\u003eTwo vessels, one system:\u003c\/strong\u003e The lower 65L buffer acts as the heat pump's primary thermal store — absorbing heat from the pump and smoothing out cycling. The upper 225L DHW vessel is pre-warmed by the buffer through its internal coil, so it's never starting from cold when the household calls for hot water. When the heat pump switches into DHW mode via its three-way valve, the cylinder reaches temperature quickly — and space heating resumes sooner.\n\u003c\/div\u003e\n\u003col class=\"steps\"\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eHeat pump runs in space heating mode:\u003c\/strong\u003e Heat is circulated through the lower buffer vessel, maintaining it at heat pump flow temperature. The buffer is slowly pre-heating the DHW cylinder via the internal coil.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eDHW demand is triggered\u003c\/strong\u003e (by timer or temperature drop): The heat pump's three-way valve diverts flow into dedicated DHW mode, now heating the pre-warmed DHW cylinder via the primary coil. Because the cylinder is already partially warm, this cycle is significantly shorter than with a cold cylinder.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eDHW cylinder reaches setpoint:\u003c\/strong\u003e The heat pump returns to space heating mode. The shorter DHW cycle means less time the property goes without space heating — improving comfort, particularly in colder weather.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eBackup immersion provides top-up or boost:\u003c\/strong\u003e If the heat pump cannot meet DHW demand (e.g. during defrost, maintenance, or extreme cold), the 2.8 kW INCOTEC immersion heater activates to maintain DHW temperature. This can also be triggered by solar PV export for maximum self-consumption.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eCOP remains high throughout:\u003c\/strong\u003e Because the buffer always provides a heat pump load, the heat pump avoids short-cycling and operates at larger, more efficient run cycles — maintaining peak COP rather than degrading through frequent starts and stops.\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003c!-- TECHNICAL SPECIFICATIONS --\u003e\n\u003cdiv class=\"section-label\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003cdiv class=\"table-scroll\"\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003cthead\u003e\n  \u003ctr\u003e\n    \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003cth\u003eUnit\u003c\/th\u003e\n    \u003cth class=\"col-dhw\"\u003eDHW Cylinder (Upper)\u003c\/th\u003e\n    \u003cth class=\"col-buf\"\u003eBuffer \/ Volumiser (Lower)\u003c\/th\u003e\n  \u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct Number\u003c\/td\u003e\n\u003ctd\u003eOSO\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e11003523\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eOGC300 — Optima\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eVolume\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEffective Capacity at 40°C\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e355 (combined)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e595\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1,776\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight (empty)\u003c\/td\u003e\n\u003ctd\u003ekg\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWeight (full \/ net)\u003c\/td\u003e\n\u003ctd\u003ekg\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e355\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eStandby Heat Loss\u003c\/td\u003e\n\u003ctd\u003eW\u003c\/td\u003e\n\u003ctd\u003e45\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eStandby Heat Loss \/ 24 hrs\u003c\/td\u003e\n\u003ctd\u003ekWh\/day\u003c\/td\u003e\n\u003ctd\u003e1.08\u003c\/td\u003e\n\u003ctd\u003e0.74\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eThermostat Setpoint (immersion)\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003ctd\u003e40–70 (adjustable)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSafety Thermostat Cut-out\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e°C\u003c\/td\u003e\n\u003ctd\u003e70\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Design Pressure\u003c\/td\u003e\n\u003ctd\u003ebar\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eT\u0026amp;P Valve Rating\u003c\/td\u003e\n\u003ctd\u003ebar \/ °C\u003c\/td\u003e\n\u003ctd\u003e7 \/ 90–95\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePrimary Coil Power Output\u003c\/td\u003e\n\u003ctd\u003ekW\u003c\/td\u003e\n\u003ctd\u003e36.5\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePrimary Coil Surface Area\u003c\/td\u003e\n\u003ctd\u003em²\u003c\/td\u003e\n\u003ctd\u003e2.6\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003ePrimary Flow Rate (design)\u003c\/td\u003e\n\u003ctd\u003eL\/h\u003c\/td\u003e\n\u003ctd\u003e900\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHeat-up Time from 10°C (coil)\u003c\/td\u003e\n\u003ctd\u003emin\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eRecovery Time to 70% (coil)\u003c\/td\u003e\n\u003ctd\u003emin\u003c\/td\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBackup Immersion Power\u003c\/td\u003e\n\u003ctd\u003ekW\u003c\/td\u003e\n\u003ctd\u003e2.8 @ 230V \/ 3.0 @ 240V\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eImmersion Heater Material\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eIncoloy 825 (INCOTEC)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eElectrical Supply\u003c\/td\u003e\n\u003ctd\u003eV \/ Hz\u003c\/td\u003e\n\u003ctd\u003e220–240 VAC \/ 50 Hz\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIP Classification\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eIP21\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInsulation Material\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003ePUR + Vacuum Insulation Panels (VIP)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInsulation Thickness (average)\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e50\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eExpansion Vessel (supplied)\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBuffer Connections\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eG 1\" female (upper \u0026amp; lower)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDHW Cold Water Inlet\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003eG ¾\" female\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDHW Hot Water Outlet\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003eG ¾\" female\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCoil Connections (upper \u0026amp; lower)\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003eG ¾\" female\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eImmersion Heater Connection\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003eG 1¼\" female\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eT\u0026amp;P Valve Connection\u003c\/td\u003e\n\u003ctd\u003einch BSP\u003c\/td\u003e\n\u003ctd\u003eG ½\" female (factory-fitted)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTemperature Sensor Pockets\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2 × (6mm and 8mm compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAdjustable Feet Range\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0–40 (factory-fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMin Servicing Clearance (front)\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e400\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMin Servicing Clearance (above)\u003c\/td\u003e\n\u003ctd\u003emm\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eKIWA Watertec — Building \u0026amp; Water Regulations approved\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eUKCA Marking\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eQuality \/ Environmental\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eISO 9001 \/ ISO 14001 \/ ISO 45001\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCylinder Warranty\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e10 years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eComponents Warranty\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003c!-- INSTALLATION CALLOUT --\u003e\n\u003cdiv class=\"section-label\"\u003eInstallation Overview\u003c\/div\u003e\n\u003cdiv class=\"callout callout-warn\"\u003e⚠️ \u003cstrong\u003eQualified installer required:\u003c\/strong\u003e The OGC300 is an unvented hot water cylinder. Installation of the DHW section must be carried out by a G3-qualified unvented hot water installer. Heat pump connections must be carried out by a competent heat pump engineer. All electrical work must comply with BS 7671 and IET Wiring Regulations (minimum 16A dedicated supply, 20A double-pole isolation switch with 3mm contact separation). Mains cable must be rated to 90°C continuously.\u003c\/div\u003e\n\n\u003col class=\"steps\"\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eSiting and floor preparation:\u003c\/strong\u003e Position the OGC300 on a solid, level floor capable of supporting 355 kg (full weight). Allow 400mm clearance in front of the junction box covers and 150mm above the top of the unit. Unscrew the adjustable feet a minimum of 15mm from the base before levelling.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eFill the upper DHW cylinder first:\u003c\/strong\u003e Open the furthest hot water outlet and the mains cold supply stop cock. Allow water to flow until air is purged from the upper cylinder, then close taps and check all connections for leaks. The upper cylinder must be filled with water before the power is switched on.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eConnect the heat pump primary circuit:\u003c\/strong\u003e Connect the heat pump flow and return to the coil connections (E and F — G¾\" female). Connect the buffer tank connections (C and D — G1\" female) to the heat pump heating circuit as applicable. Fit a drain cock at the lowest point of the buffer circuit (not supplied). Fill and bleed the buffer\/heating circuit in accordance with the heat pump manufacturer's instructions.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eInstall temperature sensors:\u003c\/strong\u003e Fit 6mm or 8mm heat pump temperature sensors into the sensor pockets as required by your heat pump controller. Pull out the sensor bracket, insert the sensor, and refit ensuring full contact with the inner stainless steel wall surface.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eConnect DHW cold water inlet and hot water outlet:\u003c\/strong\u003e Connect mains cold water supply to connection H (G¾\" female). Connect hot water outlet to connection K (G¾\" female). A mixing valve (not supplied) is strongly recommended to prevent scalding at draw-off points — maximum stored temperature is 70°C.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eConnect T\u0026amp;P valve discharge and tundish:\u003c\/strong\u003e Connect the T\u0026amp;P valve discharge to a tundish and discharge pipe in accordance with Building Regulations Part G. Ensure a continuous fall to drain and a clear, visible discharge point. Discharge pipe must be metal rated to the relevant temperature.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eElectrical connections:\u003c\/strong\u003e Wire the 2.8 kW immersion heater to a dedicated 16A+ supply with a 20A double-pole isolation switch (3mm separation). Mains cable must withstand 90°C. Fit strain relievers (supplied) to both junction box cable entries. Do not switch on power until both vessels are filled with water.\u003c\/div\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cdiv\u003e\n\u003cstrong\u003eCommission and test:\u003c\/strong\u003e Verify all pipe connections for tightness and leaks. Test T\u0026amp;P valve by turning the knob counter-clockwise and confirming free flow to drain. Adjust immersion thermostat (40–70°C, minimum 60°C for Legionella prevention). Complete the G3 commissioning logbook (supplied) and hand all documentation to the customer.\u003c\/div\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cdiv class=\"callout callout-amber\"\u003e💡 \u003cstrong\u003eMixer valve recommendation:\u003c\/strong\u003e The OGC300 stores DHW at up to 70°C. A thermostatic mixing valve (TMV) preset to a maximum of 60°C at draw-off is strongly recommended to prevent scalding risk, particularly where children or elderly users are present. This is a requirement under Part G of the Building Regulations for most domestic installations.\u003c\/div\u003e\n\n\u003cdiv class=\"callout callout-blue\"\u003eℹ️ \u003cstrong\u003eAnnual servicing:\u003c\/strong\u003e The OGC300 requires annual inspection and maintenance by a competent person to validate the 10-year cylinder warranty. This includes testing both safety valves, checking and recharging the expansion vessel (target 3 bar pre-charge), cleaning the line strainer, and recording service in the commissioning logbook. The immersion heater element must be removed for inspection after 5 years, then every 3 years thereafter — particularly important in hard water areas.\u003c\/div\u003e\n\n\u003c!-- FAQ --\u003e\n\u003cdiv class=\"section-label\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eWhat is the difference between the DHW cylinder, the buffer, and the coil in the OGC300?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eThe OGC300 contains three distinct but connected elements. The \u003cstrong\u003eupper 225L DHW cylinder\u003c\/strong\u003e stores potable domestic hot water for showers, baths, and taps. The \u003cstrong\u003elower 65L buffer\/volumiser\u003c\/strong\u003e is a closed heating circuit vessel — it stores heat pump flow water (non-potable) and acts as a thermal flywheel, smoothing heat pump cycling. The \u003cstrong\u003e36.5 kW internal coil\u003c\/strong\u003e transfers heat from the heat pump's primary circuit into the DHW cylinder — it is a heat exchanger, not a separate vessel. The three work together so that buffer heat continuously pre-warms the DHW cylinder through the coil.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eWhy does combining the cylinder and buffer in one unit improve efficiency?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eTwo reasons. First, \u003cstrong\u003eheat loss is reduced\u003c\/strong\u003e — in a conventional two-tank system, the pipework between the cylinder and buffer loses heat to the surrounding air (even if well lagged), whereas the OGC300 encapsulates both tanks within the same foam-insulated casing. Second, \u003cstrong\u003eCOP is maintained\u003c\/strong\u003e — because the buffer always provides a steady load to the heat pump, the heat pump runs in longer, more efficient cycles rather than short-cycling, which degrades efficiency. The OGC300 achieves both A-class ErP ratings for DHW and buffer.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eDoes the OGC300 work with both air source and ground source heat pumps?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eYes. The OGC300 is compatible with any heat pump — ASHP (air source) or GSHP (ground source) — up to 15 kW output that uses a three-way valve to switch between space heating and DHW modes. This covers the vast majority of domestic heat pump installations in the UK. Check your heat pump's flow rate and connection sizes against the OGC300's coil connections (G¾\" female, 900 L\/h design flow rate).\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eHow much usable hot water does the OGC300 actually provide?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eThe nominal DHW cylinder volume is 225L, but the effective usable hot water capacity at 40°C draw-off temperature is \u003cstrong\u003e355 litres\u003c\/strong\u003e. This is because the cylinder stores water at up to 70°C — when blended down to 40°C comfort temperature, the volume of usable water is significantly greater than the nominal 225L. OSO rates this as sufficient for approximately 5.5 persons, making the OGC300 appropriate for larger family homes.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eWhat is the maximum heat pump capacity the OGC300 can work with?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eThe OGC300 is designed for heat pumps up to \u003cstrong\u003e15 kW output\u003c\/strong\u003e. The primary heating coil has a rated power output of 36.5 kW at the design flow rate of 900 L\/h, which comfortably accommodates the thermal output of domestic heat pumps in this range. For heat pumps larger than 15 kW, consult OSO for an appropriate commercial cylinder specification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eCan I connect solar PV to the OGC300?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eYes. The 2.8 kW backup immersion heater can be connected to a solar PV diverter device, allowing excess solar generation to heat the DHW cylinder instead of being exported to the grid. The immersion heater position within the OGC300 is designed so that it can heat \u003cstrong\u003e100% of the DHW cylinder volume\u003c\/strong\u003e when operating from solar or mains — maximising self-consumption and reducing running costs.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eWhat are the two separate pressure ratings, and why do they differ?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eThe \u003cstrong\u003eupper DHW cylinder is rated to 10 bar\u003c\/strong\u003e — a standard mains-pressure unvented rating for potable hot water systems. The \u003cstrong\u003elower buffer circuit is rated to 2.5 bar\u003c\/strong\u003e — appropriate for a closed heating system connected to a heat pump, where operating pressures are typically 1–2 bar. These are physically separate circuits with no direct water connection, so the pressure difference is not a problem. Never attempt to connect mains water pressure to the buffer circuit.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eHow does the OGC300 compare to installing a separate cylinder and buffer tank?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eA conventional setup requires a DHW cylinder, a separate buffer tank, interconnecting pipework (and lagging), fittings for two G3 kits, and installation time for both units plus the pipework between them. The OGC300 eliminates all of this — single delivery, single installation footprint, single set of pipework connections, and one G3 kit included in the price. OSO reports significant reductions in both material cost and installation time. The combined insulation of both tanks within one casing also means less heat loss than two separately insulated tanks.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eWhat warranty comes with the OGC300?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eThe stainless steel cylinder carries a \u003cstrong\u003e10-year warranty\u003c\/strong\u003e against defects in materials and manufacture — provided the cylinder is serviced annually by a competent person and the service logbook (supplied) is updated at each service visit. Electrical components and valve gear carry a 2-year warranty. Warranty conditions include correct installation by a professional, use with compliant mains water (chloride \u0026lt;250 mg\/L, conductivity \u0026lt;750 µS\/cm at 25°C, pH 6.0–9.5), and hard water protection (max 10°dH hardness — a water softener is recommended above this).\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n  \u003cdiv class=\"faq-q\"\u003eDoes the OGC300 come with Building Regulations compliance documentation?\u003c\/div\u003e\n  \u003cdiv class=\"faq-a\"\u003eYes. The OGC300 is approved to Building Regulations and Water Regulations by \u003cstrong\u003eKIWA Watertec Ltd\u003c\/strong\u003e, the relevant UK notified body for unvented hot water systems. It carries UKCA marking and is supplied with a G3 inlet group kit (strainer, PRV, expansion relief, tundish) and an 18L expansion vessel, all factory-fitted. The supplied commissioning logbook, when completed by the G3-qualified installer, serves as the compliance record for Part G3 of the Building Regulations.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":63640041947485,"sku":"OGC300","price":1795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OSOOptimaOGC300HeatPumpCylinderwithBufferTank.webp?v=1772168082"},{"product_id":"telford-tempest-400l-indirect-unvented-heat-pump-cylinder-tsmi400-hp-duplex-stainless-steel-hot-water-cylinder","title":"Telford Tempest 400L Indirect Unvented Heat Pump Cylinder TSMI400\/HP – Duplex Stainless Steel Hot Water Cylinder","description":"\u003c!-- SEO Product Name: Telford Tempest 400L Indirect Unvented Heat Pump Cylinder TSMI400\/HP – Duplex Stainless Steel Hot Water Cylinder --\u003e\n\u003cdiv style=\"font-size: 16px; font-family: 'Segoe UI',Helvetica,Arial,sans-serif; color: #222; background: #fff; max-width: 900px; line-height: 1.5;\"\u003e\n\u003c!-- INTRO STRIP — Shopify H1 comes from product title field --\u003e\u003c!-- BADGES --\u003e\n\u003cdiv style=\"margin-bottom: 20px; line-height: 2.2;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003e400 Litre Capacity\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003eUnvented Mains Pressure\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003eDuplex Stainless Steel\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003e3 m² Heat Exchanger Coil\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003e3 kW Immersion Included\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003eErP Class C\u003c\/span\u003e \u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 4px; padding: 6px 14px; font-size: 14px; font-weight: bold; letter-spacing: 0.03em; margin: 3px 5px 3px 0;\"\u003eFull Unvented Kit Supplied\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!-- INTRO TEXT --\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.75; color: #333; margin: 0 0 18px;\"\u003eThe \u003cstrong\u003eTelford Tempest TSMI400\/HP\u003c\/strong\u003e is a \u003cstrong\u003e400-litre indirect unvented hot water cylinder\u003c\/strong\u003e engineered specifically for use with \u003cstrong\u003eair source and ground source heat pumps\u003c\/strong\u003e. Manufactured in the UK from \u003cstrong\u003eDuplex 2304 stainless steel\u003c\/strong\u003e — a grade that delivers superior corrosion resistance and greater strength compared to standard austenitic stainless — the Tempest provides \u003cstrong\u003emains-pressure hot water\u003c\/strong\u003e with high flow rates throughout the property. Its \u003cstrong\u003epurpose-designed 3 m² low-temperature heat exchanger coil\u003c\/strong\u003e maximises heat transfer efficiency from the heat pump's lower flow temperatures, while the \u003cstrong\u003efactory-fitted 3 kW immersion heater\u003c\/strong\u003e provides reliable back-up heat when required. Supplied complete with a \u003cstrong\u003efull unvented component kit\u003c\/strong\u003e, remote expansion vessel and wall-mounting bracket, the TSMI400\/HP is ready to commission straight from the pallet.\u003c\/p\u003e\n\u003c!-- SUPPLIED WITH CALLOUT --\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 8px 8px 0; padding: 16px 20px; margin-bottom: 22px; font-size: 15px; color: #005c54;\"\u003e\n\u003cdiv style=\"font-weight: bold; margin-bottom: 8px; font-size: 16px;\"\u003eSupplied Complete With:\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(220px,1fr)); gap: 6px 20px; color: #333;\"\u003e\n\u003cdiv\u003e✓  Acetal tundish\u003c\/div\u003e\n\u003cdiv\u003e✓  Inlet control group\u003c\/div\u003e\n\u003cdiv\u003e✓  Two-port motorised valve\u003c\/div\u003e\n\u003cdiv\u003e✓  Remote expansion vessel\u003c\/div\u003e\n\u003cdiv\u003e✓  Factory-fitted wall-mounting bracket\u003c\/div\u003e\n\u003cdiv\u003e✓  Dual-probe thermostat\u003c\/div\u003e\n\u003cdiv\u003e✓  Temperature \u0026amp; pressure relief valve (factory-fitted)\u003c\/div\u003e\n\u003cdiv\u003e✓  3 kW immersion heater (factory-fitted)\u003c\/div\u003e\n\u003cdiv\u003e✓  1\" Female BSP connections \u0026amp; unvented kit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- KEY FEATURES --\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; border-bottom: 3px solid #008377; padding-bottom: 8px; margin: 28px 0 14px; text-transform: uppercase; letter-spacing: 0.05em;\"\u003eKey Features \u0026amp; Benefits\u003c\/div\u003e\n\u003c!-- feature rows --\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eDuplex 2304 Stainless Steel Construction\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eSuperior corrosion resistance and greater strength at lower weight\u003c\/strong\u003e compared to standard 316L or duplex 2101 grades. The cylinder ends are precision-manufactured and welded to the body, producing a strong, reliable pressure vessel rated for a \u003cstrong\u003e3 bar operating pressure\u003c\/strong\u003e and up to \u003cstrong\u003e12 bar incoming supply pressure\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #f8f8f8; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003e3 m² Purpose-Designed Heat Pump Coil\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eLarge-area low-temperature heat exchanger coil\u003c\/strong\u003e optimised for the lower flow temperatures of air and ground source heat pumps. The \u003cstrong\u003e316L grade stainless-steel 22mm compression fittings and coil\u003c\/strong\u003e ensure maximum heat transfer into stored water, improving system efficiency and reducing heat pump run time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eFactory-Fitted 3 kW Immersion Heater Backup\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003ePre-installed 3 kW immersion heater\u003c\/strong\u003e provides reliable electric backup heat, ensuring hot water availability during heat pump servicing, periods of peak demand or extreme weather. The 400 L size can optionally be supplied with an \u003cstrong\u003eadditional off-peak immersion heater\u003c\/strong\u003e to enable economy tariff charging.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #f8f8f8; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eMains-Pressure Unvented Operation\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eSupplies hot water at full mains pressure\u003c\/strong\u003e, delivering powerful showers and high flow rates to multiple outlets simultaneously — without the need for a cold-water header tank or pump. Ideal for larger households, holiday lets, small commercial properties or any installation where \u003cstrong\u003ehigh hot water demand is expected\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eFully Insulated — Low Standing Heat Loss\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eHigh-performance foam insulation\u003c\/strong\u003e minimises heat loss from stored water, reducing the frequency of heat pump re-heat cycles and cutting running costs. The TSMI400\/HP achieves a \u003cstrong\u003estanding heat loss of just 2.42 kWh\/24h (101 W)\u003c\/strong\u003e — contributing to its \u003cstrong\u003eErP Class C energy efficiency rating\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #f8f8f8; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eRemote Expansion Vessel with Wall Bracket\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eExternal expansion vessel supplied factory-fitted with a wall-mounting bracket\u003c\/strong\u003e, keeping the cylinder footprint compact and making installation cleaner and more flexible. The remote vessel arrangement also simplifies future servicing and replacement.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 14px; align-items: flex-start; padding: 14px 16px; background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 6px 6px 0; margin-bottom: 8px;\"\u003e\n\u003cdiv style=\"flex-shrink: 0; width: 30px; height: 30px; background: #008377; border-radius: 50%; display: flex; align-items: center; justify-content: center;\"\u003e\u003csvg stroke-width=\"3\" stroke=\"#fff\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"15\" width=\"15\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eLifetime Warranty on the Inner Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eTelford backs the stainless steel inner container with a lifetime manufacturing warranty\u003c\/strong\u003e, with a 2-year warranty on all components. Made in Britain for over 30 years, Telford cylinders are a proven and trusted choice for heat pump installations across the UK. Terms \u0026amp; conditions apply.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- INSTALLATION SUITABILITY NOTE --\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f0a500; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 24px; font-size: 15px; color: #5a4000;\"\u003e\n\u003cstrong\u003e⚠ Professional Installation Required:\u003c\/strong\u003e Unvented hot water cylinders must be installed by a \u003cstrong\u003equalified G3-competent person\u003c\/strong\u003e in compliance with Building Regulations Part G3 and the manufacturer's installation instructions. A 3-port valve (not included) must be purchased separately for heat pump system connections.\u003c\/div\u003e\n\u003c!-- TECHNICAL SPECIFICATIONS --\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; border-bottom: 3px solid #008377; padding-bottom: 8px; margin: 28px 0 14px; text-transform: uppercase; letter-spacing: 0.05em;\"\u003eTechnical Specifications — TSMI400\/HP\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: 'Segoe UI',Helvetica,Arial,sans-serif;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eStorage \u0026amp; Capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; width: 45%; border-bottom: 1px solid #e0e0e0;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e400 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eActual Usable Capacity\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e391 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eThermostat Set Temperature\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eHeat Exchanger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eCoil Surface Area\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eCoil Material\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e316L grade stainless steel, 22mm compression wound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHeat Pump Flow \u0026amp; Return Connection\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1\" Female BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eImmersion Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eImmersion Heater\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1 × 3 kW (factory-fitted); optional additional off-peak immersion available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003ePressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eMax. Incoming Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e12 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eT\u0026amp;P Relief Valve\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e½\", 7 bar, factory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eEnergy Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eErP Energy Efficiency Class\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eStanding Heat Loss\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e2.42 kWh\/24h (101 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003ePhysical Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1590 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e710 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eEmpty Weight\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e53 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eFull Weight (water-filled)\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e444 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eInsulation Thickness\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e40 mm (adds 40 mm to stated diameter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003ePort Positions (from base)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eA — Cold Feed Centreline\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e233 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eB — Lower Thermostat Pocket\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eC — HP Return\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e645 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eD — HP Flow\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e740 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eE — Upper Thermostat \/ Immersion\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e810 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eF — Secondary Return\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1240 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eG — Hot Draw-Off\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1340 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eConnections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHeat Pump Flow \u0026amp; Return\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1\" Female BSP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHot Draw-Off\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eThermostat Pockets\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e22mm (× 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eT\u0026amp;P Relief Valve\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e½\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\" colspan=\"2\"\u003eWarranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eInner Vessel (stainless steel)\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eLifetime manufacturing warranty*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; font-weight: 600; color: #333; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eComponents\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e2 years*   \u003cspan style=\"font-size: 13px; color: #888;\"\u003e*Terms \u0026amp; Conditions apply\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- INSTALLATION NOTE --\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 8px 8px 0; padding: 14px 18px; margin-bottom: 26px; font-size: 15px; color: #005c54;\"\u003e\n\u003cstrong\u003eℹ Installation \u0026amp; Siting:\u003c\/strong\u003e Cylinder dimensions stated are for the vessel only and do not include the 40 mm foam insulation, which adds to the overall diameter. Ensure adequate floor-loading capacity is confirmed before installation — the TSMI400\/HP weighs 444 kg when full. The cylinder can be sited virtually anywhere in the property; allow sufficient clearance for maintenance access and immersion heater removal.\u003c\/div\u003e\n\u003c!-- FAQ --\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; border-bottom: 3px solid #008377; padding-bottom: 8px; margin: 28px 0 14px; text-transform: uppercase; letter-spacing: 0.05em;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #005c54; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; background: #f5fbfa;\"\u003e\u003cspan\u003eIs this cylinder compatible with any air source heat pump?\u003c\/span\u003e \u003csvg stroke-width=\"2.5\" stroke=\"#008377\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"18\" width=\"18\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px; font-size: 15px; color: #444; line-height: 1.65; border-top: 1px solid #cde3e1; background: #fff;\"\u003eYes. The TSMI400\/HP is designed for use with any \u003cstrong\u003eair source or ground source heat pump\u003c\/strong\u003e as the primary heat source. The 1\" Female BSP flow and return connections are compatible with the majority of heat pump manufacturers. Note that a \u003cstrong\u003e3-port valve (sold separately)\u003c\/strong\u003e is required for most heat pump system configurations.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #005c54; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; background: #f5fbfa;\"\u003e\u003cspan\u003eWhy is a 400 L cylinder recommended for heat pump systems?\u003c\/span\u003e \u003csvg stroke-width=\"2.5\" stroke=\"#008377\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"18\" width=\"18\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px; font-size: 15px; color: #444; line-height: 1.65; border-top: 1px solid #cde3e1; background: #fff;\"\u003eHeat pumps operate most efficiently when they run for longer, continuous cycles at lower temperatures rather than short bursts. A \u003cstrong\u003elarger cylinder stores more thermal energy per heat pump run\u003c\/strong\u003e, reducing cycling frequency and improving the overall coefficient of performance (CoP). The 400 L size is particularly suited to \u003cstrong\u003elarger households (4–6 bedrooms), holiday lets and small commercial premises\u003c\/strong\u003e with higher hot water demand.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #005c54; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; background: #f5fbfa;\"\u003e\u003cspan\u003eWhat does the full unvented kit include, and what else do I need?\u003c\/span\u003e \u003csvg stroke-width=\"2.5\" stroke=\"#008377\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"18\" width=\"18\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px; font-size: 15px; color: #444; line-height: 1.65; border-top: 1px solid #cde3e1; background: #fff;\"\u003eThe cylinder is supplied with an \u003cstrong\u003eacetal tundish, inlet control group, two-port motorised valve, remote expansion vessel with wall bracket, dual-probe thermostat, factory-fitted T\u0026amp;P relief valve and factory-fitted 3 kW immersion heater\u003c\/strong\u003e. You will additionally need a \u003cstrong\u003e3-port zone valve\u003c\/strong\u003e (not included) for the heat pump primary circuit, plus appropriate pipework, electrical supply for the immersion and any required programmer or controls. Always confirm requirements with your heat pump manufacturer's installation guidance.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #005c54; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; background: #f5fbfa;\"\u003e\u003cspan\u003eCan a second immersion heater be added for off-peak electricity tariffs?\u003c\/span\u003e \u003csvg stroke-width=\"2.5\" stroke=\"#008377\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"18\" width=\"18\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px; font-size: 15px; color: #444; line-height: 1.65; border-top: 1px solid #cde3e1; background: #fff;\"\u003eYes. The 400–500 L Tempest heat pump cylinders can be supplied with an \u003cstrong\u003eadditional off-peak immersion heater\u003c\/strong\u003e, enabling the cylinder to be topped up or fully heated overnight using a cheaper Economy 7 or Agile-type electricity tariff. This is particularly useful when combined with solar PV or a smart energy tariff to further reduce running costs. Please specify the off-peak option at time of ordering.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; margin-bottom: 10px; overflow: hidden;\"\u003e\n\u003cdetails\u003e\n\u003csummary style=\"padding: 14px 18px; font-size: 15px; font-weight: bold; color: #005c54; cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; background: #f5fbfa;\"\u003e\u003cspan\u003eWhat is the difference between Duplex 2304 and standard stainless steel?\u003c\/span\u003e \u003csvg stroke-width=\"2.5\" stroke=\"#008377\" fill=\"none\" viewbox=\"0 0 24 24\" height=\"18\" width=\"18\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px 16px; font-size: 15px; color: #444; line-height: 1.65; border-top: 1px solid #cde3e1; background: #fff;\"\u003eDuplex 2304 stainless steel has a \u003cstrong\u003etwo-phase microstructure (austenitic + ferritic)\u003c\/strong\u003e that gives it approximately twice the yield strength of standard 316L austenitic stainless. This means \u003cstrong\u003ethinner walls can achieve the same pressure rating\u003c\/strong\u003e, reducing the cylinder's empty weight. It also provides \u003cstrong\u003esuperior resistance to stress corrosion cracking and pitting\u003c\/strong\u003e, which is particularly important for unvented cylinders in areas with aggressive or chlorinated water supplies. Telford uses 2304, a step up from the 2101 duplex grade used by some other manufacturers.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- RELATED PRODUCTS --\u003e\n\u003cdiv style=\"font-size: 16px; font-weight: bold; color: #005c54; border-bottom: 3px solid #008377; padding-bottom: 8px; margin: 28px 0 14px; text-transform: uppercase; letter-spacing: 0.05em;\"\u003eRelated Products\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(230px,1fr)); gap: 10px; margin-bottom: 10px;\"\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; padding: 16px 18px; text-align: center; background: #f5fbfa;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eTelford Tempest 300L Indirect HP Cylinder\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eSKU: TSMI300\/HP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; padding: 16px 18px; text-align: center; background: #f5fbfa;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eTelford Tempest 500L Indirect HP Cylinder\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eSKU: TSMI500\/HP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #cde3e1; border-radius: 8px; padding: 16px 18px; text-align: center; background: #f5fbfa;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eTelford Tempest HP Cylinder with Solar Coil\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eSKU: TSMI400\/HP\/S\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- end wrapper --\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":63889837457757,"sku":"TSMI400\/HP","price":1595.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempest400LIndirectHeatPumpCylinder.jpg?v=1773755544"},{"product_id":"joule-cyclone-platinum-high-gain-300l-short-indirect-unvented-cylinder-tcimvh-0300nfc","title":"Joule Cyclone Platinum High Gain 300L Short Indirect Unvented Cylinder – TCIMVH-0300NFC","description":"\u003c!-- SEO Product Name: Joule Cyclone Platinum High Gain 300L Short Indirect Unvented Cylinder – TCIMVH-0300NFC --\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; color: #1a1a1a; max-width: 900px; line-height: 1.7;\"\u003e\n\u003c!-- Intro --\u003e\n\u003cp style=\"font-size: 15px;\"\u003eThe \u003cstrong\u003eJoule Cyclone Platinum TCIMVH-0300NFC\u003c\/strong\u003e is a 300-litre high gain indirect unvented hot water cylinder in the compact Short (600) format — 1600mm tall × 600mm diameter. It is purpose-built for \u003cstrong\u003eair source heat pump systems\u003c\/strong\u003e, featuring Joule's high-recovery smooth stainless tube primary coil rated at \u003cstrong\u003e110 kW\u003c\/strong\u003e — one of the highest coil ratings in its class, enabling rapid heat transfer from low-temperature heat pump circuits even at flow temperatures of 35–55°C.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px;\"\u003eThe cylinder body is manufactured from \u003cstrong\u003ehigh-grade Duplex stainless steel\u003c\/strong\u003e — selected for its strength and resistance to both stress and crevice corrosion — with \u003cstrong\u003e50mm CFC-free polyurethane insulation\u003c\/strong\u003e achieving ErP Class C and a standing heat loss of just \u003cstrong\u003e17W\u003c\/strong\u003e. All Joule Cyclone Platinum cylinders are independently tested and certified by \u003cstrong\u003eKIWA\u003c\/strong\u003e to BS EN 12897:2006, confirming compliance with UK Building Regulations, Water Regulations, and ErP Legislation.\u003c\/p\u003e\n\u003c!-- Badge strip --\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0;\"\u003e\n\u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eMPN: TCIMVH-0300NFC\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003e300L High Gain Indirect\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eHeat Pump Ready\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003e110kW Primary Coil\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eKIWA Certified\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eErP Class C\u003c\/span\u003e \u003cspan style=\"background: #008377CF; color: #fff; padding: 7px 13px; border-radius: 20px; font-size: 12px; font-weight: bold;\"\u003eDuplex Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!-- HG vs Standard callout --\u003e\n\u003cdiv style=\"background: #f0faf9; border-left: 4px solid #008377CF; padding: 12px 16px; margin: 0 0 18px; font-size: 14px; border-radius: 0 4px 4px 0;\"\u003e\n\u003cstrong style=\"color: #008377cf;\"\u003eWhy High Gain for heat pumps?\u003c\/strong\u003e Standard indirect cylinders use corrugated coils rated at 20–27 kW — designed for high-temperature boiler circuits where fast heat transfer from a small coil area is possible. Heat pumps deliver water at 35–55°C at lower flow rates. A high-gain smooth tube coil with a much larger surface area (rated at 110 kW on this model) compensates for the lower temperature differential, recovering heat efficiently and keeping reheat times short — just \u003cstrong\u003e17 minutes\u003c\/strong\u003e on this cylinder.\u003c\/div\u003e\n\u003c!-- Short vs Standard callout --\u003e\n\u003cdiv style=\"background: #f0faf9; border-left: 4px solid #008377CF; padding: 12px 16px; margin: 0 0 24px; font-size: 14px; border-radius: 0 4px 4px 0;\"\u003e\n\u003cstrong style=\"color: #008377cf;\"\u003eShort (600) vs Standard (540) format:\u003c\/strong\u003e The Short format is 1600mm tall × 600mm diameter — wider and shorter than the Standard 540mm diameter models (which are typically 2040mm tall for 300L). The Short format is ideal where ceiling height is limited (e.g. airing cupboards, under-stairs installations, utility rooms) while the larger diameter maintains full 300L capacity. If height is not a constraint, the TCIMVH-0300LFC Tall (540) version is also available.\u003c\/div\u003e\n\u003c!-- Technical specifications --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 24px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eMPN\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eTCIMVH-0300NFC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eModel type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eHigh Gain Indirect — Short (600) — Unvented\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eNominal capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e300 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eActual water volume\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e282 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eHeight (A)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eDiameter (B)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eWeight — empty\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e74 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eWeight — full\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e372 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eMax mains water pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e10 Bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eOperating pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e7 Bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eT\u0026amp;P relief valve setting\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e90°C \/ 7 Bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003ePrimary coil rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e\n\u003cstrong\u003e110 kW\u003c\/strong\u003e — smooth stainless tube high-gain coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eReheat time (indirect)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e17 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eImmersion heater\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1× 3kW Incoloy @ 230V — with integral thermostat (backup \/ boost)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eInsulation\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e50mm CFC-free polyurethane foam (ODP zero)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e17W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eAnnual energy usage\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e2.21 kWh\/annum (standing loss)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eErP energy rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eClass C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eLoad profile\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eBody material\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eDuplex stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eCoil \/ fittings material\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e316L grade stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eTest standard\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eBS EN 12897:2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eKIWA (ISO\/IEC 17065) — Building Regs, Water Regs \u0026amp; ErP compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eNumber of immersion ports\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eConnections (all compression)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e22mm compression — supplied with fittings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eJoule UK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Connection positions --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eConnection Heights from Base\u003c\/h2\u003e\n\u003cp style=\"font-size: 13px; color: #555; margin-bottom: 12px;\"\u003eAll measurements in mm, taken from base of cylinder. All connections are at the \u003cstrong\u003efront\u003c\/strong\u003e of the cylinder and clearly labelled.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 24px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eRef\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eConnection\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #006b62;\"\u003eHeight from base (mm)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eCold water inlet\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e218mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eD\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003ePrimary coil flow (from heat pump \/ boiler — hot)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e608mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eE\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003ePrimary coil return (to heat pump \/ boiler — cooled)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e586mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eF\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eAquastat pocket (bottom thermostat position)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e383mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eG\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eT\u0026amp;P relief valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1333mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eI\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eImmersion heater (bottom) — 3kW Incoloy\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e673mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eK\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003eSecondary return (hot water out \/ secondary circulation)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3;\"\u003e1153mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Supplied components --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eSupplied Components\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 24px;\"\u003eThe TCIMVH-0300NFC is supplied as a complete pre-fitted unvented kit, including: \u003cstrong\u003e3kW Incoloy immersion heater with integral thermostat\u003c\/strong\u003e, \u003cstrong\u003eexpansion vessel\u003c\/strong\u003e (sized for the cylinder), \u003cstrong\u003etemperature \u0026amp; pressure relief valve\u003c\/strong\u003e (90°C \/ 7 Bar), \u003cstrong\u003e3 Bar inlet control group\u003c\/strong\u003e, \u003cstrong\u003etwo-port motorised zone valve\u003c\/strong\u003e, \u003cstrong\u003etundish\u003c\/strong\u003e, and \u003cstrong\u003e22mm compression fittings\u003c\/strong\u003e for all connections. All branded quality components — no own-label replacements.\u003c\/p\u003e\n\u003c!-- Key features grid --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003e110 kW smooth tube high-gain coil\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eJoule's proprietary smooth stainless tube coil technology delivers the highest heat transfer rate of any coil type available. The 110 kW rating enables rapid heat absorption from low-temperature heat pump circuits (35–55°C), achieving a 17-minute reheat time on a 300-litre cylinder — critical for maintaining comfort without oversizing the heat pump.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003eDuplex stainless steel body — lifetime durability\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eThe cylinder shell is made from high-grade Duplex stainless steel, chosen for its superior resistance to both stress corrosion and crevice corrosion compared to standard 304 or 316 stainless. The 316L grade fittings and coils are produced on separate dedicated machinery — no cross-contamination risk from other metals. Joule's zero-dirt production floor policy prevents any foreign debris from entering the metal during manufacturing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003eKIWA certified — full regulatory compliance\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eAll Joule Cyclone Platinum cylinders are tested and certified by KIWA — one of the world's top 25 TIC organisations — to BS EN 12897:2006 under ISO\/IEC 17065 accreditation. KIWA independently verified compliance with all UK Building Regulations, Water Regulations, and ErP Legislation. KIWA regularly audit Joule's production facilities to ensure ongoing conformity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003eShort (600) — space-efficient 1600mm height\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eAt 1600mm tall, the Short format fits in standard-height airing cupboards and utility rooms where the 2040mm Standard\/Tall models would not. The 600mm diameter maintains full 300-litre capacity. A flat base provides additional stability and allows installation directly on a level floor without a plinth. All pipework connections are at the \u003cstrong\u003efront\u003c\/strong\u003e of the cylinder, clearly identified and accessible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003e50mm PU foam insulation — 17W standing loss\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eThe 50mm CFC-free polyurethane foam insulation jacket achieves a standing heat loss of just 17W — significantly lower than older or budget cylinders. Over a year this contributes only 2.21 kWh of standby energy consumption. The metallic grey outer casing contains no cheap plastic panels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 6px; padding: 14px 16px;\"\u003e\n\u003cp style=\"margin: 0 0 5px; font-weight: bold; color: #008377cf; font-size: 14px;\"\u003eWorks with any air source heat pump\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eThe TCIMVH-0300NFC is compatible with any air-to-water ASHP system regardless of brand — including Vaillant, Daikin, Mitsubishi, Samsung, LG, Grant, Panasonic, Worcester Bosch, and Joule's own heat pump range. It can also be used with system boilers, solar thermal systems, or a combination of heat pump + boiler in a hybrid system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- High Gain range context --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eHigh Gain Range — Available Variants\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin-bottom: 24px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eMPN\u003c\/th\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eFormat\u003c\/th\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eH × D\u003c\/th\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eCoil kW\u003c\/th\u003e\n\u003cth style=\"padding: 9px 12px; text-align: left; border: 1px solid #006b62;\"\u003eReheat\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: bold; color: #008377;\"\u003eTCIMVH-0200NFC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eShort (600)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e1150 × 600mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e97 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e11 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: bold; color: #008377;\"\u003eTCIMVH-0250NFC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eShort (600)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e1400 × 600mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e110 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e14 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62; font-weight: bold;\"\u003eTCIMVH-0300NFC ✓\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62;\"\u003eShort (600)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62;\"\u003e1600 × 600mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62;\"\u003e110 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #006b62;\"\u003e17 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: bold; color: #008377;\"\u003eTCIMVH-0300LFC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eTall (540)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e2040 × 540mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e110 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e17 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: bold; color: #008377;\"\u003eTCIMVH-0400LFC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e400L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eStandard (710)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e1570 × 710mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e138 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e19 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Installation requirements --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eInstallation Requirements\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px;\"\u003eThe TCIMVH-0300NFC must be installed by a \u003cstrong\u003eG3-qualified unvented hot water installer\u003c\/strong\u003e only. The installation, commissioning, and servicing must comply with the Joule installation manual, BS 7593, the Water Supply (Water Fittings) Regulations 1999, and Part G of the Building Regulations. A Benchmark commissioning log must be completed and left with the homeowner on installation.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px;\"\u003eThe floor must be level and capable of bearing the full weight of \u003cstrong\u003e372 kg when full\u003c\/strong\u003e. At least two people must lift and position the cylinder to avoid injury. Install on a level base — the flat-base design provides inherent stability without a plinth. All connection pipework is 22mm compression. Ensure a thermostatic mixing valve (TMV) is installed to prevent scalding — domestic hot water may be stored above 60°C for Legionella control.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f59e0b; padding: 12px 16px; margin: 14px 0 24px; font-size: 14px; border-radius: 0 4px 4px 0;\"\u003e\n\u003cstrong style=\"color: #b45309;\"\u003eWater chemistry:\u003c\/strong\u003e The cylinder must be supplied with water conforming to Joule's water chemistry table in the installation manual. If Total Hardness or any other parameter exceeds the specified limits — regardless of whether the supply is from mains or another source — a \u003cstrong\u003eJoule Wellmaster cylinder\u003c\/strong\u003e (designed for hard or aggressive water) must be specified instead of the Cyclone Platinum.\u003c\/div\u003e\n\u003c!-- FAQ --\u003e\n\u003ch2 style=\"color: #fff; background: #008377CF; padding: 10px 16px; border-radius: 4px; font-size: 16px; margin: 28px 0 16px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 14px; border-left: 3px solid #008377CF; padding-left: 14px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eWill this cylinder work with my heat pump brand?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eYes — the TCIMVH-0300NFC is compatible with any air-to-water heat pump regardless of manufacturer. The 110 kW smooth tube coil is designed to work efficiently with heat pump flow temperatures from 35°C upwards. The primary coil connections are standard 22mm compression fittings, compatible with all heat pump hydraulic circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px; border-left: 3px solid #008377CF; padding-left: 14px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eWhat is the difference between this (TCIMVH-0300NFC Short) and the TCIMVH-0300LFC (Tall)?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eBoth cylinders hold 300L and share the same 110 kW coil and performance specifications. The Short (NFC) is 1600mm × 600mm diameter — wider and shorter, suited to installations with limited ceiling height. The Tall\/Standard (LFC) is 2040mm × 540mm — narrower and taller, suited to where floor space is tight but ceiling height is available. Choose based on the dimensions of your installation space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px; border-left: 3px solid #008377CF; padding-left: 14px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eCan this cylinder be used with a boiler as well as a heat pump?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eYes — the single primary coil on the TCIMVH-0300NFC can be connected to any indirect heat source: an ASHP, a system boiler, a combination of both (hybrid system), or even a solid fuel back boiler. In a hybrid system, both the heat pump and boiler share the primary coil and are controlled via the zone valve to prioritise the heat pump and use the boiler as a supplementary heat source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px; border-left: 3px solid #008377CF; padding-left: 14px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eWhat size heat pump do I need to supply this cylinder?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eThe coil is rated at 110 kW, but the actual heat pump capacity needed depends on the domestic hot water demand profile, the house heating load, and the operating temperatures. As a general guide for domestic use, a 5–16 kW ASHP is typical for a 300L cylinder with normal household demand. A heat pump designer or MCS-certified installer should confirm sizing based on the SAP or ASHP system design calculation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 14px; border-left: 3px solid #008377CF; padding-left: 14px;\"\u003e\n\u003cp style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003eIs the 3kW immersion heater always needed?\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 14px;\"\u003eThe immersion heater is provided for backup, boost, and anti-Legionella pasteurisation duty. During normal heat pump operation it does not need to run — the primary coil provides all the heating. It serves as an emergency backup if the heat pump is taken out of service, and can be used for a weekly 60°C+ pasteurisation cycle where required by the system design for Legionella compliance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Related products footer --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 16px 20px; border-radius: 4px; margin-top: 32px; font-size: 14px; line-height: 1.9;\"\u003e\n\u003cstrong\u003eRelated Products:\u003c\/strong\u003e\u003cbr\u003eJoule TCIMVH-0250NFC 250L High Gain Short Indirect Cylinder | Joule TCIMVH-0300LFC 300L High Gain Tall Indirect Cylinder | Joule TCIMVH-0400LFC 400L High Gain Indirect Cylinder | Zilmet Hydro-Pro Potable Expansion Vessel | Intatec IntaKlean HP Magnetic Filter | Thermostatic Mixing Valve 22mm | 3 Bar Inlet Control Group\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":63899721957725,"sku":"TCIMVH-0300NFC","price":1795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JoulePlatinumDirectShort200LSmartCycloneCylinder.jpg?v=1763042907"},{"product_id":"baxi-ashp-pre-plumbed-cylinder-170l-210l-250l-300l-stainless-steel-unvented-cylinders-for-air-source-heat-pumps","title":"Baxi ASHP Pre-plumbed Cylinder — 170L \/ 210L \/ 250L \/ 300L Stainless Steel Unvented Cylinders for Air Source Heat Pumps","description":"\u003cdiv style=\"font-size: 16px; font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif; color: #222; line-height: 1.55; max-width: 900px; margin: 0 auto;\"\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eThe \u003cstrong\u003eBaxi ASHP Pre-plumbed Cylinder\u003c\/strong\u003e is a fully integrated unvented hot water and heating control unit, engineered to work with Baxi's range of air source heat pumps. Available in \u003cstrong\u003e170, 210, 250 and 300 litre capacities\u003c\/strong\u003e, the cylinder arrives \u003cstrong\u003epre-wired, pre-plumbed and pre-fitted\u003c\/strong\u003e with all the components needed to manage heating and domestic hot water — including the \u003cstrong\u003ediverter valve, expansion vessel, pressure controls and integrated controller\u003c\/strong\u003e. Built from \u003cstrong\u003eduplex stainless steel\u003c\/strong\u003e by Megaflo and Heatrae Sadia, with \u003cstrong\u003e60 mm of high-efficiency PU foam insulation\u003c\/strong\u003e and built-in Bluetooth for fast commissioning via the Baxi Start app.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e76 L\/min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eMax flow at 3 bar\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e170–300 L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eFour capacity options\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003eErP B\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003e170L \u0026amp; 210L models\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 160px; background: #f0faf9; border-left: 4px solid #008377CF; padding: 14px 16px; border-radius: 6px;\"\u003e\n\u003cdiv style=\"font-size: 24px; font-weight: bold; color: #005c54;\"\u003e10 years\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #444;\"\u003eInner stainless steel tank*\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377CF; padding: 16px 20px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 8px;\"\u003eWhat you get in the box\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6;\"\u003eEach unit ships as a \u003cstrong\u003ecomplete cold control pack\u003c\/strong\u003e ready for installation: tundish, \u003cstrong\u003e3.5 bar pressure reducing valve\u003c\/strong\u003e, 6 bar pressure relief valve, \u003cstrong\u003e3-port motorised diverter valve\u003c\/strong\u003e, 24L external expansion vessel, \u003cstrong\u003e13m signal cable\u003c\/strong\u003e, immersion element spanner, compression nuts and olives. The integrated controller, immersion heater and all internal pipework are \u003cstrong\u003efactory-fitted and tested\u003c\/strong\u003e — no field assembly of the heating manifold is required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eDesigned for low-labour heat pump installations\u003c\/div\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); gap: 14px; margin: 18px 0 24px;\"\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDuplex stainless steel build\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eInner vessel manufactured by \u003cstrong\u003eMegaflo and Heatrae Sadia\u003c\/strong\u003e from corrosion-resistant duplex stainless steel and \u003cstrong\u003e100% pressure tested to 16 bar\u003c\/strong\u003e. The outer casing uses pre-coated steel with polypropylene mouldings for long service life.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003ePre-plumbed and pre-wired\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eAll controls, the \u003cstrong\u003ediverter valve, immersion heater, expansion vessel and safety valves\u003c\/strong\u003e are factory-fitted. Pipe connections take 22mm compression fittings or \u003cstrong\u003e3\/4\" BSP\u003c\/strong\u003e threaded fittings — cutting site labour and commissioning time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eBluetooth + Baxi Start App\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eBuilt-in Bluetooth lets the installer commission, configure and service the cylinder from a phone using the \u003cstrong\u003eBaxi Start app\u003c\/strong\u003e. Bluetooth can be deactivated once setup is complete to keep the unit secure.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eIntegrated 2-zone controller\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eThe on-board controller drives the \u003cstrong\u003eheat pump, DHW priority, immersion backup and automatic Legionella cycle\u003c\/strong\u003e. Heating output supports \u003cstrong\u003eup to two zones\u003c\/strong\u003e when paired with the optional Baxi 7879380 second zone kit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eHigh-efficiency PU insulation\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003e\n\u003cstrong\u003e60mm of CFC\/HCFC-free fire-retardant PU foam\u003c\/strong\u003e with zero ozone depletion potential keeps standing losses low — from \u003cstrong\u003e1.38 kWh\/24h on the 170L\u003c\/strong\u003e up to 2.02 kWh\/24h on the 300L.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f0faf9; border: 1px solid #c8e6e3; border-radius: 8px; padding: 16px 18px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #005c54; margin-bottom: 6px;\"\u003eDesigned for Baxi ASHPs\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55;\"\u003eOptimised to work with the \u003cstrong\u003eBaxi HP40, HP50, HP55 and HP60\u003c\/strong\u003e monobloc heat pumps. A 3kW immersion provides backup heating and runs the Legionella cycle when needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eAir source heat pump compatibility\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 14px; line-height: 1.6;\"\u003eThe pre-plumbed cylinder is the \u003cstrong\u003erecommended hot water and control package\u003c\/strong\u003e for the Baxi air source heat pump range — compatible with the \u003cstrong\u003eHP40 standard-temperature monobloc\u003c\/strong\u003e, the \u003cstrong\u003eBaxi Assure HP50\u003c\/strong\u003e, the \u003cstrong\u003eHP55 high-temperature monobloc\u003c\/strong\u003e and the \u003cstrong\u003eHP60 high-temperature monobloc\u003c\/strong\u003e. The integrated controller takes the heat pump's flow temperature signal, modulates the diverter valve between heating and DHW, and falls back to the \u003cstrong\u003e3 kW immersion\u003c\/strong\u003e for backup or the Legionella cycle. Pair with the Baxi \u003cstrong\u003euSense 2 smart room thermostat\u003c\/strong\u003e via OpenTherm for weather compensation and remote control through the MyBaxi app.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #008377CF; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e170L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e210L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e250L\u003c\/th\u003e\n\u003cth style=\"padding: 10px 12px; text-align: left; border: 1px solid #005c54;\"\u003e300L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eProduct code\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7853985\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7853986\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7853987\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e7853988\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eNominal capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e170 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e210 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e250 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e300 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStorage volume @ 3 bar\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e167 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e209 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e246 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e287 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHot water at \u0026gt;40 °C\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e239 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e293 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e333 L\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e417 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil heat-up time\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e18.7 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e21.8 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e23 min\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e27.5 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil surface area\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e3 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eCoil rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e31.3 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e32.5 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e37 kW\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e37.9 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eStanding heat loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.38 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.64 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1.86 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2.02 kWh\/24h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eEnergy efficiency class\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eB\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eB\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1280 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1516 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e1767 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e2082 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (empty)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e61 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e68 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e74 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e83 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWeight (full)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e228 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e277 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e320 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8;\"\u003e370 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #005c54; font-size: 17px; font-weight: bold; margin: 18px 0 10px;\"\u003eCommon specifications (all capacities)\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 8px 0 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600; width: 45%;\"\u003eWidth \/ diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e699 mm \/ 579 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInsulation thickness\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e60 mm CFC\/HCFC-free PU foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eImmersion element rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3 kW @ 240 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eMax flow rate\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e76 L\/min @ 3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003ePressure reducing valve \/ relief \/ T\u0026amp;P\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e3.5 bar \/ 6 bar \/ 10 bar \u0026amp; 90 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eExternal expansion vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003e24 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eConnections\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e28 mm flow \u0026amp; return · 22 mm cold inlet · 22 mm DHW outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f0faf9;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eInner vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #fff;\"\u003eDuplex stainless steel — 100% tested to 1.6 MPa (16 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; font-weight: 600;\"\u003eWarranty*\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #d4eae8; background: #f0faf9;\"\u003e2-year parts and labour, 10-year inner stainless steel tank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: #666; margin-top: -6px; margin-bottom: 14px;\"\u003e*Warranty subject to terms — see baxi.co.uk\/terms. ErP class per EU regulations 814\/2013 and 812\/2013. Coil heat-up times measured at 15 L\/min; cylinder tested per Annex A, BS EN 12897:2016.\u003c\/div\u003e\n\u003cdiv style=\"background: #fef2f2; border-left: 4px solid #dc2626; padding: 14px 18px; border-radius: 6px; margin: 18px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #7f1d1d; margin-bottom: 6px;\"\u003eInstallation requirements\u003c\/div\u003e\n\u003cdiv style=\"line-height: 1.6; font-size: 14px;\"\u003eInstallation, commissioning and annual servicing must be carried out by a \u003cstrong\u003ecompetent person\u003c\/strong\u003e — typically G3 unvented hot water qualified and Gas Safe \/ MCS registered as appropriate. The unit must be installed in accordance with \u003cstrong\u003eBuilding Regulations Part G\u003c\/strong\u003e, BS EN 12897:2016 and the Baxi Installation \u0026amp; Service Manual. Do not bypass any safety valve or thermal cut-out. A 22mm cold water supply (15mm acceptable subject to flow) and a discharge route from tundish to a safe, visible point are required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377CF; color: #ffffff; padding: 14px 20px; border-radius: 8px; margin: 32px 0 18px; font-size: 20px; font-weight: bold; letter-spacing: .2px;\"\u003eFrequently asked questions\u003c\/div\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat is the difference between the Baxi pre-plumbed cylinder and the standard ASHP cylinder?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe pre-plumbed cylinder arrives \u003cstrong\u003efully assembled\u003c\/strong\u003e with the diverter valve, immersion heater, expansion vessel, integrated controller, pressure controls and all internal pipework factory-fitted. The standard Baxi ASHP cylinder is the cylinder vessel only and requires the installer to assemble the heating manifold and controls separately. Choose pre-plumbed for the fastest, lowest-labour installation; choose the standard cylinder if you need flexibility to design a bespoke control scheme.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhich Baxi heat pumps is this cylinder compatible with?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe pre-plumbed cylinder is engineered for the full Baxi air source heat pump range — the \u003cstrong\u003eHP40 monobloc, the Baxi Assure HP50, the HP55 high-temperature monobloc and the HP60 high-temperature monobloc\u003c\/strong\u003e. The integrated controller is configured during commissioning via the Baxi Start app to match the connected heat pump model.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eCan the cylinder support two heating zones?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eYes — the integrated controller is designed to manage \u003cstrong\u003eup to two heating zones plus DHW priority\u003c\/strong\u003e. A second zone requires the optional Baxi \u003cstrong\u003esecond zone kit (part 7879380)\u003c\/strong\u003e, available as a separate accessory, which adds the additional zone valve, sensors and wiring needed for independent control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eHow is Legionella protection handled?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe integrated controller runs an \u003cstrong\u003eautomatic Legionella cycle\u003c\/strong\u003e that uses the 3kW immersion heater to raise the cylinder contents to a temperature high enough to neutralise legionella bacteria, even if the heat pump is in low-temperature operation. Frequency and target temperature are set during commissioning in line with BS 8580.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eWhat size cylinder do I need?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eAs a guide: the \u003cstrong\u003e170L\u003c\/strong\u003e suits a 1–2 bedroom property with a single bathroom; the \u003cstrong\u003e210L\u003c\/strong\u003e matches a typical 3-bed home with one bathroom; the \u003cstrong\u003e250L\u003c\/strong\u003e is a strong fit for a 3–4 bed property with two bathrooms; and the \u003cstrong\u003e300L\u003c\/strong\u003e is appropriate for a 4-bed home with two or more bathrooms. Final selection should be confirmed by a property heat-loss calculation and a hot water demand assessment (number of occupants, simultaneous draws, bath versus shower use).\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin: 8px 0; border: 1px solid #c8e6e3; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; cursor: pointer; font-weight: 600; list-style: none;\"\u003eDoes the Boiler Upgrade Scheme apply?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 18px; line-height: 1.6; background: #fff;\"\u003eThe Boiler Upgrade Scheme grant is paid against the \u003cstrong\u003eheat pump installation\u003c\/strong\u003e (Baxi HP40 \/ HP60), not the cylinder itself. The cylinder is, however, a normal part of an MCS-certified ASHP system, so its cost forms part of the installed package that qualifies for the grant. Always check current eligibility, grant value and scheme rules with your MCS-certified installer.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Baxi","offers":[{"title":"170L","offer_id":64573823320413,"sku":"7853985","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"210L","offer_id":64573823353181,"sku":"7853986","price":3100.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":64573823385949,"sku":"7853987","price":3300.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":64573823418717,"sku":"7853988","price":3600.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/BaxiASHPPre-plumbedCylinderStainlessSteelUnventedCylindersforAirSourceHeatPumps.webp?v=1777618550"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/GledhillStainlesslitePlusCylinder-tp.webp?v=1755019197","url":"https:\/\/qualityheating.co.uk\/collections\/heat-pumps-cylinders.oembed?page=2","provider":"AIZO Quality Heating","version":"1.0","type":"link"}