{"title":"E.C.A","description":"\u003cp style=\"text-align: justify;\"\u003eE.C.A is an established manufacturer of electric heating solutions, supplying efficient and compact systems for modern residential properties. Known for practical engineering and reliable performance, electric boilers are designed to provide dependable space heating and hot water without the need for gas connections, making them suitable for a wide range of installation environments.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eThe E.C.A Arceus range includes electric system boilers and electric combi boilers available in 12kW and 15kW outputs. These units are designed for quiet operation, straightforward installation, and consistent heating performance. With compact dimensions and integrated components, E.C.A electric boilers are well suited for apartments, new builds, and properties seeking an alternative to traditional fossil-fuel heating systems.\u003c\/p\u003e\n\n\u003cp style=\"text-align: justify;\"\u003eExplore our range of E.C.A electric system boilers and electric combi boilers for efficient heating performance and practical electric heating solutions.\u003c\/p\u003e","products":[{"product_id":"e-c-a-arceus-ek-12-mt-electric-combi-boiler-12kw","title":"E.C.A Arceus EK 12, MT Electric Combi Boiler – 12kW","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eE.C.A Arceus EK 12, MT Electric Combi Boiler – 12kW \u003c\/strong\u003eis a compact, wall‑mounted electric combi boiler designed to provide central heating and instantaneous domestic hot water without the need for gas. The MT (Monothermic Type) design incorporates separate heating circuits within a stainless steel tank‑type heat exchanger, delivering quiet (around 38 dB), zero‑emission operation for modern homes and apartments.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12kW electric combi boiler\u003c\/strong\u003e – provides central heating and instantaneous domestic hot water in one compact appliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMT monothermic design\u003c\/strong\u003e – dual water heating circuits inside a stainless steel tank heat exchanger for space heating and DHW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% efficient at point of use\u003c\/strong\u003e – all electrical energy is converted into heat within the system, with no flue losses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange‑rateable output\u003c\/strong\u003e – heating side can be range‑rated (e.g. from 12kW down to 6kW) to improve ErP rating and better match property demand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStaged electric elements\u003c\/strong\u003e – multiple resistors are switched in stages for simple, reliable modulation and load management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery quiet operation\u003c\/strong\u003e – approximately 38 dB sound level, suitable for installation in utility rooms, cupboards or kitchens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS‑approved\u003c\/strong\u003e – compliant for use on UK potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpenTherm compatible\u003c\/strong\u003e – supports OpenTherm smart room thermostats, improving control and reducing energy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑in smart modulator\u003c\/strong\u003e – optimises element staging and temperature control for stable comfort and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic filling loop \u0026amp; bypass\u003c\/strong\u003e – integrated components simplify installation and help protect the system and boiler.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrost protection \u0026amp; ECO modes\u003c\/strong\u003e – frost protection for the boiler and ECO\/COMFORT modes on the domestic hot water circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance \u0026amp; Application\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating output:\u003c\/strong\u003e 12kW nominal, suitable for well‑insulated small to medium properties (typical heated area up to ~90–100 m², load‑dependent).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDHW performance:\u003c\/strong\u003e maximum domestic hot water flow rate around 7.0–7.4 litres per minute at 35°C temperature rise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP ratings:\u003c\/strong\u003e ErP D for space heating; ErP C for domestic hot water efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for all‑electric homes\u003c\/strong\u003e – properties without a gas supply, flats, or projects pairing an electric boiler with renewables and smart tariffs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e E.C.A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Arceus EK 12, MT Electric Combi Boiler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 8116270010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat output:\u003c\/strong\u003e 12kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e 230V single‑phase or 400V three‑phase (model range supports both; wiring to be configured to site supply)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler type:\u003c\/strong\u003e wall‑hung, dual‑circuit (central heating and DHW)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum hot water flow rate:\u003c\/strong\u003e approx. 7–7.4 l\/min at 35°C ΔT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeasonal efficiency:\u003c\/strong\u003e ~36% seasonal (space heating) with D‑class ErP; water heating ErP class C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat exchanger:\u003c\/strong\u003e stainless steel tank‑type with removable electric elements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e advanced LCD control panel, built‑in diagnostics, ECO\/COMFORT modes, OpenTherm interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e 3‑bar safety valve, automatic bypass, frost protection, overheat protection, pressure sensor and fault diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e approx. 678 x 410 x 288 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprox. weight:\u003c\/strong\u003e around 27–30 kg (dry)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e CE, WRAS and other regional approvals (TSE, EAC, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMust be installed and commissioned by a competent, qualified engineer in accordance with the manufacturer’s installation manual and local wiring\/plumbing regulations.\u003c\/li\u003e\n\u003cli\u003eSuitable for sealed central heating systems; ensure appropriate expansion vessel, safety valve and system treatment are provided.\u003c\/li\u003e\n\u003cli\u003eElectrical supply sizing, protective devices and cable selection must be calculated to suit the 12kW load and supply type (single‑phase or three‑phase).\u003c\/li\u003e\n\u003cli\u003ePair with a suitable OpenTherm or on\/off room thermostat and, where applicable, smart controls or tariffs for best running cost and comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"E.C.A","offers":[{"title":"Default Title","offer_id":62857693102429,"sku":"8116270010","price":1430.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ECAArceusEK12MTElectricCombiBoiler.jpg?v=1765520702"},{"product_id":"e-c-a-arceus-ek-15-mt-electric-combi-boiler-15kw","title":"E.C.A Arceus EK 15, MT Electric Combi Boiler – 15kW","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eE.C.A Arceus EK 15, MT Electric Combi Boiler – 15kW (MPN: 8116271010)\u003c\/strong\u003e is a high‑efficiency, wall‑mounted electric combi boiler designed for properties without a gas supply or where an all‑electric solution is preferred. The MT (Monothermic Type) configuration incorporates two water heating circuits within a stainless steel tank‑formed heat exchanger, enabling the boiler to act as both a central heating source and instantaneous domestic hot water heater in one compact appliance.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15kW electric combi boiler\u003c\/strong\u003e – delivers both central heating and instantaneous domestic hot water from a single compact wall‑hung unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonothermic tank design\u003c\/strong\u003e – dual water circuits inside a stainless steel tank‑type heat exchanger provide separate CH and DHW functions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% point‑of‑use efficiency\u003c\/strong\u003e – all electrical input is converted to heat on site, with no flue losses or combustion emissions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStaged electric elements\u003c\/strong\u003e – multiple resistors are switched in stages for simple, reliable modulation and smoother load management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange‑rateable output\u003c\/strong\u003e – heating output can be range‑rated to better match property demand and improve ErP efficiency rating when configured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery low noise level\u003c\/strong\u003e – quiet operation at approximately 38 dB makes it suitable for use in kitchens, cupboards and utility rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWRAS‑approved\u003c\/strong\u003e – certified for use on UK potable water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑in smart modulator\u003c\/strong\u003e – optimises staging of elements, helping maintain stable temperatures and improve comfort and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpenTherm compatible\u003c\/strong\u003e – supports OpenTherm smart room thermostats, improving control and offering potential 15–20% energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic filling loop and bypass\u003c\/strong\u003e – factory‑integrated components simplify installation and help protect the boiler and system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrost protection \u0026amp; ECO modes\u003c\/strong\u003e – built‑in frost protection and ECO\/COMFORT modes on the domestic hot water circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral heating output:\u003c\/strong\u003e approx. 14.9kW (about 50,840 BTU\/h), suitable for well‑insulated small to medium properties (typical heated area up to ~110–120 m², load‑dependent).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomestic hot water:\u003c\/strong\u003e maximum DHW output around 14.9kW with a flow rate up to about 9.3 litres per minute at a 35°C temperature rise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP ratings:\u003c\/strong\u003e ErP D for space heating seasonal efficiency, ErP C for domestic hot water efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal applications:\u003c\/strong\u003e all‑electric homes, apartments, off‑grid and low‑carbon projects, or properties pairing electric heating with PV, batteries and smart tariffs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e E.C.A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Arceus EK 15, MT Electric Combi Boiler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 8116271010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN \/ EAN‑13:\u003c\/strong\u003e 8682182000980\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal output:\u003c\/strong\u003e 14.9–15kW (central heating and DHW)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply options:\u003c\/strong\u003e 400V three‑phase or 230V single‑phase (up to 15kW, configured according to site supply and wiring design)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler type:\u003c\/strong\u003e wall‑hung electric combi, sealed system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat exchanger:\u003c\/strong\u003e stainless steel tank‑type, with electric elements that can be removed and cleaned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e digital front panel with LCD, built‑in diagnostics, ECO\/COMFORT modes, OpenTherm interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety features:\u003c\/strong\u003e 3‑bar safety valve, automatic bypass, frost protection, overheat thermostat, pressure sensor, flow sensor and error logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e approx. 678 x 410 x 288 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e around 27 kg (approx. 30 kg gross with packaging)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e typically 3–5 years depending on distributor and registration (check specific T\u0026amp;Cs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e CE, WRAS and other regional conformity marks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation and commissioning must be carried out by a suitably qualified engineer in accordance with the E.C.A installation manual and local electrical and plumbing regulations.\u003c\/li\u003e\n\u003cli\u003eDesigned for sealed central heating systems; ensure an appropriately sized expansion vessel, safety valve and system treatment (inhibitor) are provided.\u003c\/li\u003e\n\u003cli\u003eElectrical supply, cable sizing and protective devices must be correctly selected for the 15kW load and supply type (single‑phase or three‑phase).\u003c\/li\u003e\n\u003cli\u003eFor best efficiency and comfort, pair the boiler with an OpenTherm thermostat and consider integration with smart tariffs or home energy management where available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"E.C.A","offers":[{"title":"Default Title","offer_id":62857697067357,"sku":"8116271010","price":1495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ECAArceusEK12MTElectricCombiBoiler.jpg?v=1765520702"},{"product_id":"e-c-a-arceus-ek-15-st-electric-system-boiler-15kw","title":"E.C.A Arceus EK 15, ST Electric System Boiler – 15kW","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eE.C.A Arceus EK 15, ST Electric System Boiler – 15kW (MPN: 8116285010)\u003c\/strong\u003e is a compact, wall‑mounted electric system boiler for sealed central heating systems with an external indirect cylinder. The ST (Storage Tank) configuration combines space heating with control of a separate hot water storage cylinder via an internal 3‑way valve, keeping stored domestic hot water at the desired temperature while delivering quiet, zero‑emission electric heating.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15kW electric system boiler\u003c\/strong\u003e – provides central heating and controls an external hot water storage cylinder rather than producing instantaneous DHW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eST (Storage Tank) design\u003c\/strong\u003e – no internal plate heat exchanger; instead, an integrated 3‑way valve diverts primary water to the cylinder coil when cylinder temperature falls below setpoint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% efficient at point of use\u003c\/strong\u003e – all electrical input is converted to heat on site, with no flue losses or combustion gases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange‑rateable output\u003c\/strong\u003e – boiler output can be reduced (range‑rated) to better match system demand and improve ErP efficiency when configured correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑in Smart modulator\u003c\/strong\u003e – manages staged electric elements and temperature control for smoother operation and energy saving.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpenTherm compatible\u003c\/strong\u003e – supports OpenTherm smart room thermostats, typically improving efficiency and comfort by 15–20%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilent, compact operation\u003c\/strong\u003e – low noise level around 38 dB and small footprint make it suitable for cupboards, kitchens and utility rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEconomy \/ energy‑saving mode\u003c\/strong\u003e – selectable operating modes for reduced energy consumption when full comfort is not required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrost protection\u003c\/strong\u003e – integrated freeze protection for the boiler and system water within the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel heating tank \u0026amp; special‑alloy elements\u003c\/strong\u003e – robust tank‑type heat exchanger with durable electric resistors for long life and reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral heating output:\u003c\/strong\u003e approx. 14.9kW (around 50,840 BTU\/h), suitable for well‑insulated small to medium homes (typical heated area up to ~110–120 m², load‑dependent).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomestic hot water:\u003c\/strong\u003e via external unvented or vented cylinder; boiler maintains cylinder temperature rather than producing instantaneous hot water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP classification:\u003c\/strong\u003e seasonal space heating ErP class D (typical for direct‑electric boilers of this type).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for:\u003c\/strong\u003e all‑electric homes, properties without gas, and systems pairing electric heating with PV, batteries or low‑carbon tariffs, where a separate cylinder is preferred.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e E.C.A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Arceus EK 15, ST Electric System Boiler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 8116285010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN \/ EAN‑13:\u003c\/strong\u003e 8682182001123\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal output (CH):\u003c\/strong\u003e approx. 14.9–15kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply options:\u003c\/strong\u003e 400V three‑phase or 230V single‑phase up to 15kW (configured to suit site supply and electrical design)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler type:\u003c\/strong\u003e sealed system boiler with internal expansion vessel, pump and 3‑way valve for cylinder control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat exchanger:\u003c\/strong\u003e stainless steel storage‑type heating tank with special‑alloy electric elements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e digital control panel with LCD display, Smart modulator, OpenTherm interface, economy mode and diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety features:\u003c\/strong\u003e automatic bypass, 3‑bar safety valve, frost protection, overheat protection, pump protection and fault diagnostics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e approx. 678 x 410 x 288 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 27 kg (around 30 kg gross with packaging)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e typically 3 years, subject to manufacturer terms and correct installation\/commissioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApprovals:\u003c\/strong\u003e CE, WRAS and other regional conformity certificates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMust be installed and commissioned by a suitably qualified engineer in line with E.C.A installation instructions and local electrical and plumbing regulations.\u003c\/li\u003e\n\u003cli\u003eDesigned for sealed central heating systems with an external cylinder; ensure appropriate expansion vessel volume, safety valve and system treatment are provided where required.\u003c\/li\u003e\n\u003cli\u003eElectrical supply, cabling and protective devices must be sized correctly for the 15kW load and chosen supply (single‑phase or three‑phase).\u003c\/li\u003e\n\u003cli\u003eConnect the boiler’s cylinder control and 3‑way valve ports as per the manufacturer’s schematics, and pair with an appropriate room thermostat and cylinder thermostat for optimal control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"E.C.A","offers":[{"title":"Default Title","offer_id":62857758540125,"sku":"8116285010","price":1495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/e.c.a-arceus-electric-boiler.jpg?v=1765521911"},{"product_id":"e-c-a-arceus-ek-12-st-electric-system-boiler-12kw","title":"E.C.A Arceus EK 12, ST Electric System Boiler – 12kW","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eE.C.A Arceus EK 12, ST Electric System Boiler – 12kW (MPN: 8116284010)\u003c\/strong\u003e is a compact, wall‑mounted electric system boiler designed for sealed central heating systems with an external indirect hot water cylinder. The ST (Storage Tank) configuration uses an internal 3‑way valve to control cylinder charging, maintaining stored domestic hot water temperature while providing quiet, zero‑emission electric heating for modern all‑electric homes.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12kW electric system boiler\u003c\/strong\u003e – dedicated to central heating and cylinder charging; domestic hot water is supplied via a separate unvented or vented cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Tank (ST) design\u003c\/strong\u003e – integrated 3‑way valve diverts primary water to the cylinder coil whenever the cylinder thermostat calls for heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% efficient at point of use\u003c\/strong\u003e – no flue or combustion, so all electrical energy is converted to useful heat on site.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange‑rateable output\u003c\/strong\u003e – central heating output can be reduced from the 11.9–12kW nominal rating to better match property heat load and improve effective efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart modulator control\u003c\/strong\u003e – stages the electric elements to deliver smooth temperature control and avoid unnecessary cycling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpenTherm compatible\u003c\/strong\u003e – supports OpenTherm smart thermostats for finer temperature control and potential energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow noise operation\u003c\/strong\u003e – around 38 dB sound level, making it suitable for installation in kitchens, cupboards and utility spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEconomy \/ energy‑saving mode\u003c\/strong\u003e – selectable operating mode to reduce consumption when full comfort is not required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt‑in frost protection\u003c\/strong\u003e – protects the boiler and primary circuit inside the unit during cold weather.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless heating tank with special‑alloy elements\u003c\/strong\u003e – durable tank‑type heat exchanger designed for long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerformance \u0026amp; Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral heating output:\u003c\/strong\u003e nominal 11.9–12kW (around 40,600 BTU\/h), suitable for well‑insulated small to medium properties (typically up to ~90–100 m², heat‑loss dependent).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDomestic hot water:\u003c\/strong\u003e provided via an external hot water cylinder; the boiler maintains cylinder temperature rather than producing instantaneous DHW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErP classification:\u003c\/strong\u003e space‑heating ErP class D; overall system label can improve when combined with appropriate controls and cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal applications:\u003c\/strong\u003e all‑electric homes, properties without gas, and projects pairing electric heating with PV, batteries and smart electricity tariffs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e E.C.A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Arceus EK 12, ST Electric System Boiler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMPN:\u003c\/strong\u003e 8116284010\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGTIN \/ EAN‑13:\u003c\/strong\u003e 8682182001116\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal CH output:\u003c\/strong\u003e 11.9–12kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical supply:\u003c\/strong\u003e configurable for 230V single‑phase or 400V three‑phase (up to 15kW), subject to site design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoiler type:\u003c\/strong\u003e sealed system boiler with integral pump, expansion components and 3‑way valve for cylinder control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat exchanger:\u003c\/strong\u003e stainless steel heating tank with special‑alloy electric elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls:\u003c\/strong\u003e digital front control panel, Smart modulator, ECO\/COMFORT modes, OpenTherm interface and fault diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety features:\u003c\/strong\u003e automatic bypass, 3‑bar safety valve, overheat protection, frost protection and system pressure monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (H x W x D):\u003c\/strong\u003e approx. 678 x 410 x 288 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e around 27 kg (approximately 30 kg gross with packaging).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, WRAS and other regional conformity approvals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical warranty:\u003c\/strong\u003e 3 years, subject to correct installation, commissioning and registration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation and commissioning should only be carried out by a suitably qualified engineer following the E.C.A installation manual and local electrical and plumbing regulations.\u003c\/li\u003e\n\u003cli\u003eDesigned for sealed systems with an external cylinder; ensure adequate expansion vessel capacity, safety valve provision and appropriate system water treatment.\u003c\/li\u003e\n\u003cli\u003eSize the electrical supply, cabling and protective devices for the 12kW load and chosen supply type (single‑phase or three‑phase).\u003c\/li\u003e\n\u003cli\u003eWire room thermostat, cylinder thermostat and OpenTherm controls according to the manufacturer’s schematics to achieve optimal comfort and efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"E.C.A","offers":[{"title":"Default Title","offer_id":62857775972701,"sku":"8116284010","price":1430.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/e.c.a-arceus-electric-boiler.jpg?v=1765521911"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/E.C.A.webp?v=1771244479","url":"https:\/\/qualityheating.co.uk\/collections\/e-c-a.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}