{"title":"Sunamp Heat Batteries — Compact, Low-Carbon Hot Water Storage","description":"\u003cdiv class=\"shopify-section\"\u003e\u003cdiv class=\"container-wide\"\u003e\u003cdiv class=\"shopify-box\"\u003e\n\u003cp\u003e\u003cstrong\u003eSunamp Heat Batteries \u003c\/strong\u003e is a Scottish engineering company and recipient of the UK's first ever King's Award for Enterprise in thermal storage innovation. Their \u003cstrong\u003eThermino heat battery range\u003c\/strong\u003e replaces traditional hot water cylinders with a compact, phase-change alternative that stores up to four times more energy per litre — delivering instant mains-pressure hot water in a unit small enough to fit under a kitchen counter.\u003c\/p\u003e\n\u003cp\u003eAt the core of every Thermino is \u003cstrong\u003ePlentigrade P58\u003c\/strong\u003e, Sunamp's patented phase-change material developed with the University of Edinburgh. As the material melts and re-solidifies, it stores and releases precise, controlled bursts of thermal energy — with ultra-low standby losses and a tested lifespan of over 50 years and 40,000 charge cycles, RAL certified with no measurable degradation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy choose Thermino over a conventional unvented cylinder or heat pump water heater?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 4× smaller\u003c\/strong\u003e — fits under stairs, in kitchen cupboards, in spaces where a cylinder simply cannot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eG3 exempt\u003c\/strong\u003e — less than 15 litres of water held internally, so no unvented certification is required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero mandatory maintenance\u003c\/strong\u003e on the unit — no annual servicing, no Legionella risk from stored water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with every energy source\u003c\/strong\u003e — grid, solar PV, heat pump, and boiler via Optimino key accessories\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQualifies for the Boiler Upgrade Scheme\u003c\/strong\u003e as ancillary equipment when installed with a heat pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50+ year lifespan\u003c\/strong\u003e — the PCM doesn't degrade, making it a one-time infrastructure investment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe stock the \u003cstrong\u003eThermino ePlus\u003c\/strong\u003e (direct electric, for grid or solar PV), the \u003cstrong\u003eThermino xPlus\u003c\/strong\u003e (indirect, for heat pump and boiler systems), and the full suite of \u003cstrong\u003eOptimino Keys\u003c\/strong\u003e — including PV keys for solar integration, boiler keys, and heat pump keys for compatibility with leading brands. We also stock the \u003cstrong\u003eSunamp Installation Kit\u003c\/strong\u003e, containing all the ancillary components your installer needs to commission the unit correctly — including expansion vessel, pressure relief valve, and push-fit connectors. Order everything together for a smooth, one-delivery installation.\u003c\/p\u003e\n\u003cp\u003eOver 30,000 Sunamp units are installed across UK homes, new build developments, and retrofit projects. Whether you're a homeowner upgrading from a combi boiler, an installer specifying for a heat pump project, or a developer future-proofing a new build against the Future Homes Standard, Thermino is the compact, compliant, and proven choice.\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-style: italic; color: var(--mid-grey); font-size: 14px;\"\u003eAvailable at AIZO Quality Heating with next-day despatch options. Need help specifying the right model or key? Call us on 020 4577 3096 or email service@qualityheating.co.uk.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e","products":[{"product_id":"sunamp-thermino-eplus-heat-battery-range-direct-water-heaters","title":"Sunamp Thermino ePlus Heat Battery Range Direct Water Heaters","description":"\u003c!-- SEO Product Name: Sunamp Thermino ePlus Heat Battery – Direct Electric, 70–300L, Off-Peak \u0026 Solar PV Ready, 10-Year Warranty --\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003eThe \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003eSunamp Thermino ePlus\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e is a \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003edirect electric heat battery — a compact, mains-pressure hot water system that replaces a traditional hot water cylinder\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e. Using \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003ePlentigrade P58 phase change material (PCM)\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e, it stores thermal energy far more densely than water, making it \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003eup to 4× smaller\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e than the cylinder it replaces. Available in four sizes — \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e70, 150, 210 and 300\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e (litre equivalents) — covering single-bedroom flats through to 4+ bedroom homes. Charged by a \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e2,800W electric heating element\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e directly from the mains, it can exploit \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003eoff-peak electricity tariffs\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e and be upgraded for \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003esolar PV diversion\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e at any time by adding the Optimino ePV key — no new unit required. Mains-pressure hot water on demand with \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003eV40 outputs from 105 to 436 litres\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e. No mandatory annual servicing. \u003c\/span\u003e\u003cstrong style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e10-year warranty on heating element and PCM core.\u003c\/strong\u003e\u003cspan style=\"color: rgb(51, 51, 51); font-size: 16px; background-color: rgb(255, 255, 255); font-family: 'Segoe UI', Helvetica, Arial, sans-serif;\"\u003e Designed and manufactured in Scotland, UK.\u003c\/span\u003e\u003c\/p\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\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(130px,1fr)); gap: 10px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eUp to 4×\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eSmaller Than Cylinder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e2,800W\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eHeating Element\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e105–436 L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eV40 Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e10 yr\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eWarranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eOff-Peak\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eTariff Ready\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eSolar PV\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eOptimino Key\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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;\"\u003eThermino ePlus Model Range — Technical Data\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 16px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: 'Segoe UI',Helvetica,Arial,sans-serif;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #008377; color: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eEquiv. Cylinder (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eV40 (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eMax Flow (L\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eHeat Loss (kWh\/24h)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eEnergy Class\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eWeight Filled (kg)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eHeight (mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e70 ePlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eSGP-KNW-AVZ-1\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e74\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e105\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e6\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.48 (20W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e79\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e150 ePlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eSKP-KNW-AVZ-1\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e140\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e199\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.67 (28.1W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e140\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e210 ePlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eSNP-KNW-AVZ-1\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e212\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e301\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.77 (32.1W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e178\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e870\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e300 ePlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eDRP-KNW-AVY-1\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e306\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e436\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e25\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.84 (34.9W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e233\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e1050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 13px; color: #666; margin: 0 0 16px;\"\u003eAll models: Width 365mm × Depth 575mm. V40 = volume of hot water available at 40°C. Heating element: 2,800W at 230V\/50Hz. Minimum mains supply pressure: 1.5 bar. Maximum working pressure: 5 bar. Recommended TMV setting: 45–55°C. Annual electricity consumption (AEC): 542 \/ 1,398 \/ 2,690 \/ 2,701 kWh\/annum.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f0a500; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 16px; font-size: 15px; color: #5a4000;\"\u003e\n\u003cstrong\u003e⚠ Scald Prevention:\u003c\/strong\u003e In line with UK Building Regulations, Sunamp requires a \u003cstrong\u003ethermostatic mixing valve (TMV)\u003c\/strong\u003e to be fitted at the outlet of the heat battery, set to deliver hot water at \u003cstrong\u003e45–55°C\u003c\/strong\u003e. The PCM stores energy at temperatures that can cause severe burns if delivered unmixed directly to outlets.\u003c\/div\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\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003ePlentigrade PCM — Up to 4× Smaller Than the Cylinder It Replaces\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe Thermino ePlus stores thermal energy in \u003cstrong\u003ePlentigrade P58 — Sunamp's patented phase change material (PCM)\u003c\/strong\u003e. PCM stores latent heat as it transitions between solid and liquid states at 58°C, delivering far more energy per litre than water-based storage. The result: Thermino ePlus is \u003cstrong\u003eup to 4× smaller\u003c\/strong\u003e than the equivalent hot water cylinder, freeing up significant space in kitchens, utility rooms and service cupboards.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ePlentigrade P58 PCM\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eUp to 4× smaller\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eMade in UK\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eDirect Electric Heating — Grid, Off-Peak and Solar PV Ready\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe ePlus is a \u003cstrong\u003edirect electric heat battery\u003c\/strong\u003e — charged by a built-in 2,800W immersion element connected directly to the mains. Connect to an \u003cstrong\u003eoff-peak electricity tariff\u003c\/strong\u003e (Economy 7, Agile etc.) to charge at night at lower rates. Add solar PV diversion at any time by fitting the \u003cstrong\u003eOptimino ePV key\u003c\/strong\u003e — no new unit required. Compatible with power diverters including myenergi eddi.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eDirect electric\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eOff-peak tariff\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eSolar PV via Optimino key\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eOptimino Keys — Future-Proof in Stages\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe \u003cstrong\u003eOptimino key system\u003c\/strong\u003e allows the ePlus to evolve with your energy setup without replacing the heat battery. Start with grid electricity; later add the \u003cstrong\u003eOptimino ePV key\u003c\/strong\u003e to divert solar PV generation to the unit. This staged upgrade path means you are never locked into a fixed configuration.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eOptimino ePV key\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eUpgradeable in stages\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eMains-Pressure Hot Water — On Demand\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eDelivers \u003cstrong\u003emains-pressure hot water instantly\u003c\/strong\u003e on demand — no waiting for a tank to reheat. V40 output ranges from 105 litres (70 model) to 436 litres (300 model) at 40°C, covering 1-bedroom apartments through to 4+ bedroom homes. Maximum flow rates from 6 l\/min (70) to 25 l\/min (300) — suitable for multiple simultaneous outlets.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eMains pressure\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e105–436 L at 40°C\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eInstant delivery\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eUltra-Low Heat Loss — No Annual Servicing Required\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eHeat loss rates of just \u003cstrong\u003e0.48 kWh\/24h (70 model) to 0.84 kWh\/24h (300 model)\u003c\/strong\u003e — significantly lower than conventional hot water cylinders. No mandatory annual maintenance is required. The unit contains no user-serviceable parts and requires no access to the PCM container in the field.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eUltra-low heat loss\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eNo annual service\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eModular and Scalable — Series or Parallel Connection\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eMultiple Thermino ePlus units can be \u003cstrong\u003econnected in series or parallel\u003c\/strong\u003e to increase storage capacity and flow rate for higher-demand installations without requiring larger pipework runs.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eModular\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eSeries \/ parallel\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eScalable\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eFlexible Pipe Access — Three Sides\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003ePipe and cable entries on \u003cstrong\u003ethree sides\u003c\/strong\u003e (rear, left, right) give installers the flexibility to route connections in the most convenient direction for the installation, reducing the need for awkward bends.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e3-side access\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eFlexible installation\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003e10-Year Warranty on Heating Element\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eSunamp provides a \u003cstrong\u003emarket-leading 10-year warranty on the heating element and storage core\u003c\/strong\u003e (Plentigrade P58 PCM) for products purchased and installed in the UK. The warranty is registered online at the time of installation.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e10-year warranty\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eElement + PCM core\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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\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 colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003eElectrical\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eHeating Element Capacity\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e2,800W at 230V \/ 50Hz (1,800W low-power model also available)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e230V AC \/ 50Hz\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eSupply Circuit\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e16A dedicated MCB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003eHydraulic — All Models\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMinimum Mains Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1.5 bar (0.15 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eRecommended Operating Pressure \/ PRV Set Point\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e3 bar (0.3 MPa)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMaximum Working Pressure \/ PRV Set Point\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e5 bar (0.5 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eBERV Recommended Set Point\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e6 bar (0.6 MPa)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMaximum Design Pressure \/ BERV Maximum\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e10 bar (1.0 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eRecommended TMV Setting\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e45–55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003ePhysical — All Models\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e365mm\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eDepth\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e575mm\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePipe \/ Cable Access\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eThree sides (rear, left, right)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003ePCM \u0026amp; Warranty\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePhase Change Material\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003ePlentigrade P58 (patented, non-toxic, non-flammable)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eWarranty (Heating Element + PCM Core)\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e10 years (UK purchase and installation, online registration)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eNo Annual Service Required\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eYes — no mandatory maintenance\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eUnited Kingdom (Macmerry, East Lothian)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 16px; font-size: 15px; color: #005c54;\"\u003e\n\u003cstrong\u003eℹ Installation:\u003c\/strong\u003e Must be installed by a \u003cstrong\u003equalified and competent person\u003c\/strong\u003e. Always refer to the manufacturer's latest installation manual. In line with UK Building Regulations, a \u003cstrong\u003ethermostatic mixing valve (TMV)\u003c\/strong\u003e must be fitted at the outlet of all Thermino heat batteries to prevent scalding.\u003c\/div\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 open=\"\"\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 the ePlus 70, 150, 210 and 300?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 models differ in thermal storage capacity and V40 hot water output: \u003cstrong\u003e70\u003c\/strong\u003e (105 L at 40°C, 6 l\/min max — 1-bed home or flat); \u003cstrong\u003e150\u003c\/strong\u003e (199 L at 40°C, 15 l\/min — 1 to 2-bed home); \u003cstrong\u003e210\u003c\/strong\u003e (301 L at 40°C, 20 l\/min — 3-bed home); \u003cstrong\u003e300\u003c\/strong\u003e (436 L at 40°C, 25 l\/min — 4+ bed home). All share the same footprint (365 × 575mm) — only height varies.\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 open=\"\"\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 I add solar PV later without buying a new unit?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 ePlus is designed to be future-proofed. Fit the \u003cstrong\u003eOptimino ePV key\u003c\/strong\u003e at any point after installation to enable solar PV diversion. No new heat battery is needed. Compatible power diverters include myenergi eddi and others listed on Sunamp's Optimino resources page.\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\u003eIs the ePlus suitable for tank-fed systems?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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;\"\u003eNo — the Thermino ePlus is \u003cstrong\u003enot suitable for tank-fed hot water systems\u003c\/strong\u003e. The property must have a mains-pressurised cold water supply. Tank-fed systems must be converted to mains pressure before installation.\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 V40 and how does it relate to my hot water needs?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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;\"\u003eV40 is the volume of hot water deliverable at 40°C from a single charge. A 150 ePlus delivers 199 litres at 40°C — comparable to a 140-litre hot water cylinder. A 210 ePlus delivers 301 litres. For a 3-bed home with typical demand, the 210 is generally recommended.\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 open=\"\"\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 happens in hard water areas?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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;\"\u003eWhere mains water hardness exceeds 150 ppm, Sunamp requires a \u003cstrong\u003escale-reducing device\u003c\/strong\u003e in the cold-water supply to the heat battery. Options include polyphosphate dosers, electrolytic scale reducers or water softeners. The Sunamp water conditioner (C5381) is the recommended accessory for this purpose.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\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;\"\u003eSunamp Thermino xPlus Heat Battery\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eIndirect — for boilers and heat pumps\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;\"\u003eSunamp A2057 Installation Kit\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003ePRV, TMV, expansion vessel — required accessories\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;\"\u003eSolar iBoost+ Immersion Controller\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eDivert surplus PV to immersion\/heat battery\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;\"\u003emyenergi eddi Solar Diverter\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eCompatible PV diverter for Optimino ePV key\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"70 ePlus","offer_id":62414108459357,"sku":"AGP-KNW-AVZ-1","price":1595.0,"currency_code":"GBP","in_stock":true},{"title":"150 ePlus","offer_id":62414108492125,"sku":"AKP-KNW-AVZ-1","price":1850.0,"currency_code":"GBP","in_stock":true},{"title":"210 ePlus","offer_id":62414108524893,"sku":"ANP-KNW-AVZ-1","price":2170.0,"currency_code":"GBP","in_stock":true},{"title":"300 ePlus","offer_id":62414108557661,"sku":"BRP-KNW-AVY-1","price":2770.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/thermno-plus-range.jpg?v=1761644068"},{"product_id":"sunamp-thermino-xplus-heat-battery-range-indirect-water-heaters","title":"Sunamp Thermino xPlus Heat Battery – Indirect, Boiler \u0026 Heat Pump, 150–300L, Energy A+, 10-Year Warranty","description":"\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\u003cp style=\"font-size: 16px; line-height: 1.75; color: #333; margin: 0 0 18px;\"\u003eThe \u003cstrong\u003eSunamp Thermino xPlus\u003c\/strong\u003e is an \u003cstrong\u003eindirect heat battery — a compact, mains-pressure hot water system for system boilers, combi pre-heat, air source heat pumps and ground source heat pumps\u003c\/strong\u003e. Using \u003cstrong\u003ePlentigrade P58 phase change material (PCM)\u003c\/strong\u003e, it achieves \u003cstrong\u003eEnergy Class A+\u003c\/strong\u003e when charged by a heat pump — storing thermal energy far more densely than water and measuring \u003cstrong\u003eup to 4× smaller\u003c\/strong\u003e than the indirect cylinder it replaces. Available in three sizes: \u003cstrong\u003e150, 210 and 300\u003c\/strong\u003e (litre equivalents). The \u003cstrong\u003eOptimino key system\u003c\/strong\u003e allows the heat source to be changed — from boiler to heat pump, or from heat pump to heat pump + solar PV — by swapping the key, never the unit. Mains-pressure hot water on demand. No mandatory annual servicing. \u003cstrong\u003e10-year warranty on heating element and PCM core.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(130px,1fr)); gap: 10px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eEnergy A+\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eClass (Heat Pump)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eUp to 4×\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eSmaller\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e199–402 L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eV40 Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e10 yr\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eWarranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e4 Optimino\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eKeys\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eNo Annual\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eService\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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;\"\u003eThermino xPlus Model Range — Technical Data\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 16px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: 'Segoe UI',Helvetica,Arial,sans-serif;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #008377; color: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eEquiv. Cylinder (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eV40 Primary (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eMax HW Flow (L\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eMax Charge Flow (L\/min)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eHeat Loss (kWh\/24h)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eEnergy Class\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eWeight Filled (kg)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 11px; font-weight: bold; font-size: 13px;\"\u003eHeight (mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e150 xPlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e142\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e199\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e15\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.67 (28.1W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eA+\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e136\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e640\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e210 xPlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e212\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e301\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e20\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.77 (32.1W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eA+\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e187\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e870\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e300 xPlus\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e284\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e402\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e25\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e25\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e0.84 (34.9W)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003eA+\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e233\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 11px; font-size: 13px; border-bottom: 1px solid #dce8e7;\"\u003e1050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 13px; color: #666; margin: 0 0 16px;\"\u003eAll models: Width 365mm × Depth 575mm. Minimum supply pressure: 1.5 bar. Maximum working pressure: 5 bar. Recommended TMV: 45–55°C. Max heat source flow temperature: 80°C. V40 = litres of hot water available at 40°C.\u003c\/p\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f0a500; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 16px; font-size: 15px; color: #5a4000;\"\u003e\n\u003cstrong\u003e⚠ Scald Prevention:\u003c\/strong\u003e In line with UK Building Regulations, a \u003cstrong\u003ethermostatic mixing valve (TMV)\u003c\/strong\u003e must be fitted at the heat battery outlet, set to deliver hot water at \u003cstrong\u003e45–55°C\u003c\/strong\u003e. The PCM stores energy at temperatures that can cause severe burns if delivered unmixed.\u003c\/div\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\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eIndirect Heat Battery — For Boilers and Heat Pumps\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe Thermino xPlus is an \u003cstrong\u003eindirect heat battery\u003c\/strong\u003e that replaces a traditional indirect hot water cylinder. It is charged by an \u003cstrong\u003eexternal heat source via an internal heat exchanger\u003c\/strong\u003e — system boiler, combi boiler (pre-heat), air source heat pump (ASHP) or ground source heat pump (GSHP). Grid electricity serves as a backup or boost charge via the built-in immersion element.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eSystem boiler\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eCombi pre-heat\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eASHP \/ GSHP\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003ePlentigrade PCM — Up to 4× Smaller, Energy Class A+\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eUses \u003cstrong\u003ePlentigrade P58 PCM\u003c\/strong\u003e — Sunamp's patented phase change material. The xPlus achieves \u003cstrong\u003eEnergy Class A+\u003c\/strong\u003e — higher than the ePlus (Class C) — because the heat pump charging pathway is significantly more efficient than direct electric heating. Up to \u003cstrong\u003e4× smaller\u003c\/strong\u003e than the indirect cylinder it replaces.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ePlentigrade P58 PCM\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eEnergy Class A+\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eUp to 4× smaller\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eOptimino Keys — Switch Heat Source Without Changing the Unit\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe Optimino key system allows the xPlus to adapt to a new heat source at any time. Start with a \u003cstrong\u003esystem boiler (vf key)\u003c\/strong\u003e; later switch to a \u003cstrong\u003eheat pump (hp key)\u003c\/strong\u003e or \u003cstrong\u003eheat pump + solar PV (hpPV key)\u003c\/strong\u003e — simply swap the Optimino key. No new heat battery is needed. The xPlus supports a staged transition from gas to fully renewable hot water.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003evf key (boiler)\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ehp key (heat pump)\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ehpPV key (HP + PV)\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eReduces Gas Consumption and Carbon Emissions\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eWhen charged by a system boiler the xPlus \u003cstrong\u003ereduces gas consumption\u003c\/strong\u003e by storing heat more efficiently than a conventional cylinder. Paired with a combi boiler, the battery pre-heats water reducing the demand placed on the boiler. Switching to a heat pump via the hp key can deliver a \u003cstrong\u003e72% reduction in carbon emissions\u003c\/strong\u003e for hot water compared with gas.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eReduces gas use\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e72% carbon reduction (HP)\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eMains-Pressure Hot Water On Demand — Three Sizes\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThree models: \u003cstrong\u003e150, 210 and 300\u003c\/strong\u003e (litre equivalents). V40 output from 199 litres (150 model) to 402 litres (300 model) at 40°C. Maximum hot water flow rates from 15 l\/min to 25 l\/min for simultaneous outlets.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e199–402 L at 40°C\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e15–25 l\/min max flow\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eMains pressure\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eUltra-Low Heat Loss — Energy Class A+\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eHeat loss of \u003cstrong\u003e0.67–0.84 kWh\/24h\u003c\/strong\u003e across the range — compared with a typical indirect cylinder losing 1.5–3+ kWh\/24h. The A+ energy label reflects the combined efficiency of PCM storage and heat pump charging. No mandatory annual servicing required.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eA+ energy class\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eUltra-low heat loss\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eNo annual service\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eFlexible Pipe Access — Three Sides, Modular and Scalable\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003ePipe and cable entries on \u003cstrong\u003ethree sides\u003c\/strong\u003e. Multiple units can be connected in \u003cstrong\u003eseries or parallel\u003c\/strong\u003e for higher-demand applications. All models share the same 365 × 575mm footprint — only height varies.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e3-side access\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eModular scalable\u003c\/span\u003e\n\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 style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003e10-Year Warranty on Heating Element and PCM Core\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003e\n\u003cstrong\u003eMarket-leading 10-year warranty\u003c\/strong\u003e on the heating element and Plentigrade P58 storage core for products purchased and installed in the UK.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e10-year warranty\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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\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\"\u003eHeat Source Compatibility\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePrimary Heat Source\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eSystem boiler, combi boiler (pre-heat), ASHP or GSHP via heat exchanger\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eBackup Electric Charging\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eYes — built-in immersion element (grid electricity)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMax Heat Source Flow Temperature\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e80°C\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMax Charging Flow Rate\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e15 l\/min (150) \/ 20 l\/min (210) \/ 25 l\/min (300)\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\"\u003eHydraulic — All Models\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMinimum Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1.5 bar (0.15 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eRecommended Operating Pressure \/ PRV\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e3 bar (0.3 MPa)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMaximum Working Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e5 bar (0.5 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eBERV Recommended Set Point\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e6 bar (0.6 MPa)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eMaximum Design Pressure\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e10 bar (1.0 MPa)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eRecommended TMV Setting\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e45–55°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\"\u003ePhysical — All Models\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e365mm\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eDepth\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e575mm\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePipe \/ Cable Access\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eThree sides (rear, left, right)\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\"\u003eOptimino Keys Available\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003evf key\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eSystem boiler \/ volt-free control\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003evfPV key\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eSystem boiler + solar PV\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ehp key\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHeat pump (ASHP\/GSHP)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ehpPV key\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eHeat pump + solar PV\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\"\u003ePCM \u0026amp; Warranty\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePhase Change Material\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003ePlentigrade P58 (patented, non-toxic, non-flammable)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eWarranty (Heating Element + PCM Core)\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e10 years (UK purchase and installation, online registration)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eUnited Kingdom (Macmerry, East Lothian)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 16px; font-size: 15px; color: #005c54;\"\u003e\n\u003cstrong\u003eℹ Installation:\u003c\/strong\u003e Must be installed by a \u003cstrong\u003equalified and competent person\u003c\/strong\u003e. Always refer to the manufacturer's latest installation manual. In line with UK Building Regulations, a \u003cstrong\u003ethermostatic mixing valve (TMV)\u003c\/strong\u003e must be fitted at the outlet of all Thermino heat batteries to prevent scalding.\u003c\/div\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\u003eWhat is the difference between the ePlus and the xPlus?\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 \u003cstrong\u003eePlus\u003c\/strong\u003e is charged directly by electricity (mains, off-peak tariff, or solar PV diverter). The \u003cstrong\u003exPlus\u003c\/strong\u003e is charged by an external heat source via an internal heat exchanger — system boiler, combi pre-heat, ASHP or GSHP — with grid electricity as a backup. The xPlus achieves Energy Class A+ (vs C for the ePlus) when charged by a heat pump.\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 I switch from a boiler to a heat pump without replacing the xPlus?\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 — this is a core design principle of the xPlus. When you install a heat pump, simply replace the \u003cstrong\u003evf Optimino key\u003c\/strong\u003e with the \u003cstrong\u003ehp key\u003c\/strong\u003e. No new heat battery is needed. If you also add solar PV later, use the \u003cstrong\u003ehpPV key\u003c\/strong\u003e.\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\u003eDoes the xPlus work with a combi boiler?\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 — in pre-heat mode. The xPlus sits upstream of the combi boiler and pre-heats the cold water supply, reducing the energy the combi needs to raise water temperature. This reduces gas consumption and improves system efficiency.\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 correct Optimino key for my installation?\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;\"\u003e\n\u003cstrong\u003evf key\u003c\/strong\u003e — system boiler (volt-free control). \u003cstrong\u003evfPV key\u003c\/strong\u003e — system boiler + solar PV. \u003cstrong\u003ehp key\u003c\/strong\u003e — air or ground source heat pump. \u003cstrong\u003ehpPV key\u003c\/strong\u003e — heat pump + solar PV. Consult Sunamp's installer resources or the installation manual for the correct key and wiring configuration.\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\u003eDoes the xPlus need annual servicing?\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;\"\u003eNo mandatory annual maintenance is required. There are no user-serviceable parts inside the heat battery. The PCM container must not be accessed in the field — doing so voids the warranty.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\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;\"\u003eSunamp Thermino ePlus Heat Battery\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eDirect electric — grid, off-peak and solar PV\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;\"\u003eSunamp A2057 Installation Kit\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003ePRV, TMV, expansion vessel — required accessories\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;\"\u003eSolar iBoost+ Immersion Controller\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003ePV diversion compatible with vfPV \/ hpPV key configurations\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"150 xPlus","offer_id":62414242677085,"sku":"BKP-KNW-AVZ-1","price":2200.0,"currency_code":"GBP","in_stock":true},{"title":"210 xPlus","offer_id":62414242709853,"sku":"BNP-KNW-AVZ-1","price":2570.0,"currency_code":"GBP","in_stock":true},{"title":"300 xPlus","offer_id":62414242742621,"sku":"BRP-KNW-AVZ-1","price":2900.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/thermino-xplus-outdoor-heatpump.jpg?v=1761644068"},{"product_id":"sunamp-optimino-keys-for-heat-pumps-range","title":"Sunamp Optimino Keys for Heat Pumps Range","description":"\u003ch3 dir=\"auto\"\u003eSunamp Optimino Keys for Heat Pumps Range\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThe Sunamp Optimino Keys for Heat Pumps Range are essential plug-in configuration modules designed to seamlessly integrate your Sunamp Thermino xPlus or ePlus heat batteries with a wide array of heat pump systems in UK homes. Available in brand-specific variants, these keys enable volt-free control signals for optimised charging, allowing your heat battery to respond efficiently to heat pump demands while supporting hybrid setups with or without solar PV integration. Compact and easy to install, they future-proof your system by facilitating upgrades to renewables without replacing the battery—perfect for 2-5 bedroom properties aiming for net-zero efficiency. Whether pairing with Daikin, Vaillant, or Samsung models, these keys ensure precise energy management, reducing bills and emissions in hard-to-heat homes.\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eFeatures and Benefits\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand-Specific Compatibility\u003c\/strong\u003e: Tailored keys for major heat pump manufacturers, ensuring seamless volt-free signalling for charging control without complex rewiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWith\/Without PV Options\u003c\/strong\u003e: Choose variants for pure heat pump operation or hybrid systems with solar PV diversion, maximising free renewable energy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuture-Proof Flexibility\u003c\/strong\u003e: Easily swap keys to adapt to new heat sources like heat pumps or PV, extending your system's lifespan and supporting UK net-zero transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficient Energy Management\u003c\/strong\u003e: Optimises battery charging to match heat pump cycles, reducing peak grid demand and lowering bills by up to 20% in integrated setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Plug-In Installation\u003c\/strong\u003e: No tools required—insert into the Thermino unit for instant configuration; includes access to detailed wiring manuals for installers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEco-Friendly Performance\u003c\/strong\u003e: Enhances overall system efficiency, cutting carbon emissions while maintaining high-flow hot water delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\"\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv dir=\"auto\"\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth data-col-size=\"md\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eModel Numbers (Without PV \/ With PV)\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eAE01\/AE02 (Amitime), BH01\/BH02 (Bosch), DN01\/DN02 (Daikin), ET01\/ET02 (Ecoforest), GT01\/GT02 (Grant), HR01\/HR02 (Haier), HA01\/HA02 (Hisa), IL01\/IL02 (Ideal), LG01\/LG02 (LG), MA01\/MA02 (Midea), MC01\/MC02 (Mitsubishi), NE01\/NE02 (NIBE), PC01\/PC02 (Panasonic), PX01\/PX02 (Phnix), SG01\/SG02 (Samsung), SL01\/SL02 (Stiebel Eltron), TI01\/TI02 (Tongyi), TO01\/TO02 (Trianco), VT01\/VT02 (Vaillant), VN01\/VN02 (Viessmann)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSpecific to listed heat pump brands\/models (e.g., Daikin Altherma 3HHT R32, Samsung EHS Mono R290); works with Thermino xPlus\/ePlus for volt-free control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eHeat pump integration for hot water charging; optional PV for solar diversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eCompact plug-in module (approx. 25mm x 25mm x 15mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eInstallation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003ePlug-and-play into Thermino battery; refer to brand-specific wiring manuals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003ePower Requirements\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eNo external power; draws from battery control system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eWarranty\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e2 years (aligned with Sunamp accessories)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003e(Note: Models cover R290, R32, and R454C heat pumps; confirm exact compatibility with Sunamp.)\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eWhy Choose Sunamp Optimino Keys for Heat Pumps?\u003c\/h4\u003e\n\u003cp dir=\"auto\"\u003eChoose Sunamp Optimino Keys for Heat Pumps to unlock effortless compatibility and efficiency in your renewable heating system—seamlessly bridging your heat pump with Thermino batteries for cost-effective, low-carbon hot water, with the flexibility to add solar PV anytime, making it an ideal upgrade for sustainable UK homes.\u003c\/p\u003e","brand":"Sunamp","offers":[{"title":"xPlus Ideal Heat Pumps Key","offer_id":62414566457693,"sku":"IL01","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"xPlus Midea Heat Pumps Key","offer_id":62414566490461,"sku":"MA01","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"xPlus Samsung Heat Pumps Key","offer_id":62414566523229,"sku":"SG01","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"xPlus Panasonic Heat Pumps Key","offer_id":62414566555997,"sku":"PC01","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"xPlus Daikin Heat Pumps Key","offer_id":62414566588765,"sku":"DN01","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"xPlus Vaillant Heat Pumps Key","offer_id":62414566621533,"sku":"VT01","price":123.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SunampTherminoOptiminoKeys.webp?v=1761645975"},{"product_id":"sunamp-optimino-pv-key","title":"Sunamp Optimino PV Key for Solar","description":"\u003cp dir=\"auto\"\u003eThe Sunamp Optimino PV Keys Range consists of specialised plug-in modules that enable seamless solar PV integration for your Sunamp Thermino ePlus or xPlus heat batteries in UK homes. With the core MPN PV02 serving as the primary key for ePlus solar PV setups, this range includes standalone PV keys and hybrid variants (denoted by \/02) that combine heat pump control with PV diversion. These keys facilitate efficient charging from solar panels, diverting excess PV energy to the battery for on-demand hot water, while supporting grid backup or hybrid systems. Ideal for 2-5 bedroom properties transitioning to renewables, they offer volt-free or electric signalling for optimised energy use, reducing bills and emissions without rewiring. Future-proof your setup by easily swapping keys to incorporate solar PV, making it a versatile choice for net-zero homes.\u003c\/p\u003e\n\u003ch4 dir=\"auto\"\u003eFeatures and Benefits\u003c\/h4\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar PV Optimisation\u003c\/strong\u003e: Diverts surplus solar energy to charge the battery, maximising self-consumption and supporting tools like MyEnergi Eddi for enhanced efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHybrid Compatibility\u003c\/strong\u003e: \/02 variants combine brand-specific heat pump control with PV integration, allowing dual-source operation for reliable hot water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Upgrades\u003c\/strong\u003e: Plug-in design enables quick adaptation to solar PV without replacing the battery, ideal for evolving renewable systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost and Energy Savings\u003c\/strong\u003e: Shifts charging to free solar power, potentially cutting bills by 20-30% in PV-equipped homes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Installation\u003c\/strong\u003e: No external power needed; insert into the Thermino unit with access to wiring diagrams for straightforward setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSustainable Design\u003c\/strong\u003e: Reduces grid reliance, lowering carbon footprints while maintaining high-performance hot water delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 dir=\"auto\"\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv dir=\"auto\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth data-col-size=\"md\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eModel Numbers (MPN)\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003ePV02 (Standalone ePlus PV Key); Hybrid \/02 Variants: AE02 (Amitime PV), BH02 (Bosch PV), DN02 (Daikin PV), ET02 (Ecoforest PV), GT02 (Grant PV), HR02 (Haier PV), HA02 (Hisa PV), IL02 (Ideal PV), LG02 (LG PV), MA02 (Midea PV), MC02 (Mitsubishi PV), NE02 (NIBE PV), PC02 (Panasonic PV), PX02 (Phnix PV), SG02 (Samsung PV), SL02 (Stiebel Eltron PV), TI02 (Tongyi PV), TO02 (Trianco PV), VT02 (Vaillant PV), VN02 (Viessmann PV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003ePV02: Thermino ePlus for direct solar PV; \/02 Variants: Thermino xPlus with specific heat pumps (R290, R32, R454C models) plus PV diversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eApplication\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSolar PV charging integration; standalone or hybrid with heat pumps for hot water systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eCompact plug-in module (approx. 25mm x 25mm x 15mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eInstallation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003ePlug-and-play into Thermino battery; refer to PV-specific wiring manuals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003ePower Requirements\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eNo external power; operates via battery control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eWarranty\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e2 years (aligned with Sunamp accessories)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4 dir=\"auto\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4 dir=\"auto\"\u003eWhy Choose Sunamp Optimino PV Keys?\u003c\/h4\u003e\n\u003cp dir=\"auto\"\u003eChoose Sunamp Optimino PV Keys to effortlessly harness solar energy in your Thermino system—whether standalone with PV02 or hybrid via \/02 variants—delivering cost savings, easy renewable upgrades, and reduced emissions for eco-conscious UK households pursuing sustainable hot water solutions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSunamp Optimino PV key UK, solar PV integration module, Thermino ePlus PV02 key, heat pump PV hybrid key, renewable energy battery upgrade.\u003c\/p\u003e","brand":"Sunamp","offers":[{"title":"Default Title","offer_id":62414612562269,"sku":"PV02","price":95.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SunampTherminoOptiminoKeys.webp?v=1761645975"},{"product_id":"sunamp-installation-kit","title":"Sunamp A2057 Heat Battery Protection Kit – PRV, TMV, Expansion Vessel, For Thermino ePlus and xPlus","description":"\u003c!-- SEO Product Name: Sunamp A2057 Heat Battery Protection Kit – PRV, TMV, Expansion Vessel, For Thermino ePlus and xPlus --\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\u003cp style=\"font-size: 16px; line-height: 1.75; color: #333; margin: 0 0 18px;\"\u003eThe \u003cstrong\u003eSunamp A2057 Heat Battery Protection Kit\u003c\/strong\u003e is the \u003cstrong\u003eofficial Sunamp installation accessory kit\u003c\/strong\u003e for Thermino ePlus and xPlus heat batteries. It contains every hydraulic component required for a safe, compliant installation: \u003cstrong\u003einlet control group\u003c\/strong\u003e (pressure reducing valve, non-return valve and expansion relief valve), \u003cstrong\u003ethermostatic mixing valve (TMV — C5388)\u003c\/strong\u003e for scald prevention at the hot water outlet, \u003cstrong\u003e2.0L expansion vessel\u003c\/strong\u003e for thermal expansion management, and an \u003cstrong\u003eisolation valve\u003c\/strong\u003e. Using Sunamp-approved components ensures the installation meets UK Building Regulations, protects the warranty and avoids last-minute sourcing of individual fittings. Compatible with \u003cstrong\u003eall ePlus (70–300) and xPlus (150–300) models\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fill,minmax(130px,1fr)); gap: 10px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003ePRV\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003ePressure Reducing Valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eTMV\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eScald Prevention\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003e2.0L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eExpansion Vessel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eNRV\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eNon-Return Valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #008377; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eERV\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eExpansion Relief\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #005c54; color: #fff; border-radius: 8px; padding: 14px 16px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: 800; line-height: 1;\"\u003eOfficial\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; opacity: 0.85; margin-top: 4px;\"\u003eA2057 Kit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eComplete Hydraulic Protection in One Kit\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe \u003cstrong\u003eA2057 Heat Battery Protection Kit\u003c\/strong\u003e contains every mandatory and recommended hydraulic component for a compliant Thermino ePlus or xPlus installation: \u003cstrong\u003einlet control group\u003c\/strong\u003e (PRV, non-return valve, expansion relief valve), \u003cstrong\u003ethermostatic mixing valve (TMV, C5388)\u003c\/strong\u003e, \u003cstrong\u003e2.0L expansion vessel\u003c\/strong\u003e and \u003cstrong\u003eisolation valve\u003c\/strong\u003e. Buying as a kit is more cost-effective than sourcing each component individually and ensures all components are matched and Sunamp-approved.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ePRV + NRV + ERV\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eTMV C5388\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e2.0L expansion vessel\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eIsolation valve\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eInlet Control Group — Pressure, Backflow and Expansion Management\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe inlet control group manages the three primary hydraulic risks at the cold-water inlet: \u003cstrong\u003epressure reducing valve (PRV)\u003c\/strong\u003e — limits incoming pressure to the recommended 3 bar set point; \u003cstrong\u003enon-return valve (NRV)\u003c\/strong\u003e — prevents backflow of hot water into the cold mains; \u003cstrong\u003eexpansion relief valve (ERV)\u003c\/strong\u003e — safely vents excess pressure caused by thermal expansion of water in the system.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003ePressure reducing valve\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eNon-return valve\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eExpansion relief valve\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eThermostatic Mixing Valve (C5388) — Scald Prevention\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThe \u003cstrong\u003eTMV (C5388)\u003c\/strong\u003e is fitted at the hot water outlet of the heat battery and blends the stored high-temperature water with cold mains water to a safe, consistent output temperature. Setting: \u003cstrong\u003e45–55°C\u003c\/strong\u003e as required by UK Building Regulations. Without a TMV at the outlet, the stored water — heated above 60°C — can cause severe scalding instantly.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eTMV C5388\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e45–55°C output\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eScald prevention — required by law\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003e2.0L Expansion Vessel — Thermal Expansion Control\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eAs stored water heats, it expands. The \u003cstrong\u003e2.0L expansion vessel\u003c\/strong\u003e accommodates this thermal expansion within the system, preventing pressure build-up that would otherwise cause repeated activation of the relief valve and wasted water. Correctly sized for Thermino ePlus and xPlus installations.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003e2.0L expansion vessel\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eMatched to Thermino range\u003c\/span\u003e\n\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 width=\"15\" height=\"15\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#fff\" stroke-width=\"3\"\u003e\u003cpolyline points=\"20 6 9 17 4 12\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1;\"\u003e\n\u003cdiv style=\"font-size: 15px; font-weight: bold; color: #005c54; margin-bottom: 4px;\"\u003eSunamp-Approved Kit — Compatible with All Thermino ePlus and xPlus Models\u003c\/div\u003e\n\u003cdiv style=\"font-size: 15px; color: #444; line-height: 1.6;\"\u003eThis is the \u003cstrong\u003eofficial Sunamp accessory kit\u003c\/strong\u003e referenced in the Thermino installation manual (part number A2057). Compatible with all ePlus models (70, 150, 210, 300) and all xPlus models (150, 210, 300). Using Sunamp-approved components protects the warranty and ensures the system behaves as intended.\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px;\"\u003e\n\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eOfficial Sunamp A2057\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eAll ePlus models\u003c\/span\u003e\u003cspan style=\"display: inline-block; background: #008377; color: #fff; border-radius: 20px; padding: 3px 11px; font-size: 13px; font-weight: bold; letter-spacing: 0.02em; margin: 2px 4px 2px 0; white-space: nowrap;\"\u003eAll xPlus models\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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\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 colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003eKit Contents — A2057 Heat Battery Protection Kit\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eInlet Control Group\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1× (includes PRV, non-return valve and expansion relief valve)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eThermostatic Mixing Valve\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1× Sunamp C5388 TMV\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1× 2.0L\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eIsolation Valve\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e1× included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003eCompatibility\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eCompatible Products\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eAll Thermino ePlus (70, 150, 210, 300) and xPlus (150, 210, 300) models\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eA2057\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377; color: #fff; font-weight: bold; padding: 9px 14px; font-size: 13px; letter-spacing: 0.06em; text-transform: uppercase;\"\u003eInstallation Note\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eTMV Setting\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e45–55°C (required by UK Building Regulations)\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; width: 46%; border-bottom: 1px solid #e0e0e0;\"\u003ePRV Set Point\u003c\/td\u003e\n\u003ctd style=\"background: #fff; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003e3 bar (recommended Sunamp operating pressure)\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: 46%; border-bottom: 1px solid #e0e0e0;\"\u003eInstaller Requirement\u003c\/td\u003e\n\u003ctd style=\"background: #f0f9f8; padding: 9px 14px; color: #222; font-size: 14px; border-bottom: 1px solid #e0e0e0;\"\u003eMust be installed by a qualified and competent person\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #e6f4f3; border-left: 4px solid #008377; border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 6px 0 16px; font-size: 15px; color: #005c54;\"\u003e\n\u003cstrong\u003eℹ Installation:\u003c\/strong\u003e Must be installed by a \u003cstrong\u003equalified and competent person (plumber and electrician)\u003c\/strong\u003e in accordance with the Sunamp Thermino installation manual and UK Building Regulations.\u003c\/div\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 kit mandatory for a Thermino installation?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 components in this kit are \u003cstrong\u003emandatory for a safe and compliant installation\u003c\/strong\u003e. UK Building Regulations require a TMV at the outlet of stored hot water systems. A PRV is required to protect the unit from excessive mains pressure. An expansion vessel is required to manage thermal expansion. The A2057 kit contains all these components matched and approved by Sunamp.\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\u003eDoes the kit include the Tectite fittings?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 A2057 kit includes the inlet control group, TMV (C5388), 2.0L expansion vessel and isolation valve. 22mm Tectite Pro Elbows (C5377) are supplied separately — note that \u003cstrong\u003e4× C5377 are supplied with all xPlus products\u003c\/strong\u003e. For additional fittings, refer to the Sunamp accessories page.\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\u003eIs there a separate kit for ePlus and xPlus?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 A2057 is compatible with both ePlus and xPlus models. The same inlet control group and TMV are applicable to both product lines. Always refer to the latest Sunamp installation manual for the specific configuration required for your model.\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 PRV set to?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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 pressure reducing valve (PRV) in the inlet control group is set to \u003cstrong\u003e3 bar\u003c\/strong\u003e — the recommended Sunamp operating pressure. The expansion relief valve is set to \u003cstrong\u003e6 bar (BERV recommended set point)\u003c\/strong\u003e.\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 I use third-party components instead?\u003c\/span\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377\" stroke-width=\"2.5\"\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;\"\u003eUsing non-Sunamp-approved components can affect warranty validity and system performance. Sunamp specifically recommends the A2057 kit. If using individual components from other sources, ensure they are rated to the same specifications and consult the installation manual for the correct configuration.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\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;\"\u003eSunamp Thermino ePlus Heat Battery\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eDirect electric heat battery — all sizes\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;\"\u003eSunamp Thermino xPlus Heat Battery\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eIndirect heat battery — boiler and heat pump\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;\"\u003eSunamp Water Conditioner (C5381)\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: #666;\"\u003eFor hard water areas (\u0026gt;150 ppm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"Default Title","offer_id":62780589506909,"sku":"A2057","price":170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SunampAccessoryKit.jpg?v=1764773411"},{"product_id":"sunamp-optimino-xplus-boiler-pv-key","title":"Sunamp Optimino xPlus Boiler + PV Key","description":"\u003cdiv class=\"product-section\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSunamp Optimino xPlus Boiler + PV Key\u003c\/strong\u003e is an interchangeable control module that enables the Sunamp Thermino xPlus heat battery to be compatible with system boilers and future-proofs the system for solar PV integration without replacing the thermal storage unit.\u003c\/p\u003e\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eThis Optimino key (part code VF02) converts the Thermino xPlus from boiler-only operation to boiler + solar PV capability using Sunamp's modular Optimino technology. Simply swap out the existing key controller to enable solar diverter compatibility, allowing the heat battery to accept low-temperature PV-heated water from myenergi EDDI solar diverters.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual energy source:\u003c\/strong\u003e Supports system boiler primary heating with solar PV as secondary heat source.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot-swap technology:\u003c\/strong\u003e Change the Optimino key without draining the Thermino xPlus or interrupting heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar diverter compatible:\u003c\/strong\u003e Works with myenergi EDDI, my-PV AC·THOR, 4-Noks power reducer, and Power Diverter Model 3.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuture-proof design:\u003c\/strong\u003e Upgrade from boiler-only to boiler + PV at any point in the system lifecycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart control:\u003c\/strong\u003e Integrated temperature sensing and prioritisation logic optimises boiler and PV charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLegionella risk reduction:\u003c\/strong\u003e Maintains Thermino's low risk of water stagnation through active charging prioritisation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimino key part code:\u003c\/strong\u003e VF02 (Boiler + PV).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule dimensions (W × D × H):\u003c\/strong\u003e 25mm × 15mm × 25mm (compact plug-in cartridge).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 230V AC single-phase for boiler demand signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Dry contact relay or 230V output for boiler firing control; solar diverter command signal (0-10V or SSR compatible).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature sensors:\u003c\/strong\u003e Built-in PT1000 sensors for hot water top\/return monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl logic:\u003c\/strong\u003e Prioritises boiler heating; diverts excess PV to storage when available; defaults to boiler if insufficient PV.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 years on controller module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatible Heat Batteries\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermino xPlus 150:\u003c\/strong\u003e 150L equivalent, 1.8kW heating element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermino xPlus 210:\u003c\/strong\u003e 210L equivalent, 1.8kW heating element.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermino xPlus 300:\u003c\/strong\u003e 300L equivalent, 1.8kW heating element.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSystem \u0026amp; Application Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible boilers:\u003c\/strong\u003e Any system boiler accepting 230V AC or dry-contact demand signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible solar diverters:\u003c\/strong\u003e myenergi EDDI, my-PV AC·THOR, 4-Noks power reducer, Power Diverter Model 3.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Swap Optimino key at terminal block; no electrical work required beyond mains isolation (Sparks advised).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternative keys:\u003c\/strong\u003e VF01 (boiler-only), or HP keys for heat pump compatibility (Vaillant VT02, Samsung SG02, Bosch BH02, Daikin DN02, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetrofit advantage:\u003c\/strong\u003e Enables existing boiler + Thermino systems to capture free solar heat without capital system redesign.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10-year coverage on Thermino heat cell core (heating element); 2-year coverage on Optimino key.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"Default Title","offer_id":63011927294301,"sku":"VF02","price":143.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SunampTherminoOptiminoKeys.webp?v=1761645975"},{"product_id":"zonzini-stairclimber-delivery-surcharge-sunamp-thermino-70-150-210-eplus-and-xplus-scheduled-delivery","title":"Zonzini Stairclimber Delivery Surcharge – Sunamp Thermino 70 \/ 150 \/ 210 (ePlus and xPlus) Scheduled Delivery","description":"\u003cdiv style=\"font-family: Arial,sans-serif; font-size: 16px; color: #1a1a1a; max-width: 900px; margin: 0 auto; line-height: 1.7;\"\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003eThis surcharge covers \u003cstrong\u003etracked stairclimber delivery by Zonzini\u003c\/strong\u003e for the smaller sizes in Sunamp's Thermino range — the \u003cstrong\u003eThermino 70, 150 and 210\u003c\/strong\u003e, in both the \u003cstrong\u003eThermino ePlus\u003c\/strong\u003e (direct electric) and \u003cstrong\u003eThermino xPlus\u003c\/strong\u003e (boiler \/ heat pump indirect) variants. Even though these are the smaller models, they still weigh \u003cstrong\u003e75–187 kg\u003c\/strong\u003e and cannot be safely delivered via a standard courier, particularly when installation is up stairs or in a confined space. Zonzini's specialist stairclimber equipment handles the unit correctly — upright, tracked, and to wherever it needs to go. \u003cstrong\u003ePlease call us before ordering\u003c\/strong\u003e so we can book a suitable slot.\u003c\/p\u003e\n\u003c!-- Red warning callout --\u003e\n\u003cdiv style=\"background: #fff5f5; border-left: 4px solid #c0392b; padding: 14px 18px; border-radius: 4px; margin: 0 0 20px;\"\u003e\n\u003cstrong style=\"color: #c0392b;\"\u003e⚠ Call to Schedule — Do Not Order Without Booking First\u003c\/strong\u003e\u003cbr\u003eDelivery must be \u003cstrong\u003epre-arranged by phone\u003c\/strong\u003e. We need to confirm your site, agree a delivery window, and check stairclimber suitability for your staircase type.\u003c\/div\u003e\n\u003c!-- Stat strip --\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 24px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 8px; padding: 14px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e70 \/ 150 \/ 210\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eModels covered\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 8px; padding: 14px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e75–187 kg\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eWeight range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 8px; padding: 14px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003eStairclimber\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eZonzini tracked delivery\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #fff; border-radius: 8px; padding: 14px 12px; text-align: center;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003ePre-booked\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; margin-top: 4px;\"\u003eScheduled slot\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- What the service covers --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; font-size: 17px; font-weight: bold; margin: 0 0 14px;\"\u003eWhat the Zonzini Surcharge Covers\u003c\/div\u003e\n\u003cul style=\"margin: 0 0 24px; padding-left: 22px; line-height: 1.8;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracked stairclimber delivery\u003c\/strong\u003e by Zonzini's specialist crew — not a standard courier pallet drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelivery up stairs and into restricted locations\u003c\/strong\u003e such as upper-floor utility cupboards, airing cupboards, and plant rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-booked time slot\u003c\/strong\u003e confirmed with you before despatch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpright handling throughout\u003c\/strong\u003e — Thermino heat batteries must never be tipped or laid on their side; Zonzini's stairclimber keeps the unit correctly oriented at all times.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProof of delivery\u003c\/strong\u003e documentation provided at handover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Amber callout – upright handling --\u003e\n\u003cdiv style=\"background: #fff8e1; border-left: 4px solid #f59e0b; padding: 14px 18px; border-radius: 4px; margin: 0 0 24px;\"\u003e\n\u003cstrong style=\"color: #b45309;\"\u003e⚠ Must Remain Upright\u003c\/strong\u003e\u003cbr\u003eAll Thermino heat batteries contain \u003cstrong\u003ePlentigrade P58 phase-change material and vacuum insulation panels\u003c\/strong\u003e. Tipping or laying a unit on its side can cause permanent damage and void the warranty. Zonzini's tracked stairclimber keeps the unit upright throughout every stage of the delivery.\u003c\/div\u003e\n\u003c!-- About the products --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; font-size: 17px; font-weight: bold; margin: 0 0 14px;\"\u003eModels Covered by This Surcharge\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 10px;\"\u003eThis surcharge applies to the following Sunamp Thermino models — the \u003cstrong\u003e70, 150 and 210 sizes only\u003c\/strong\u003e (the Thermino 300 has its own separate delivery surcharge). Both heat battery types are included:\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 14px; padding-left: 22px; line-height: 1.8;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermino ePlus\u003c\/strong\u003e — direct electric, charged by the mains grid via a built-in 2,800 W element. Solar PV diversion upgradeable with the Optimino ePV key. Replaces a direct hot water cylinder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermino xPlus\u003c\/strong\u003e — indirect, charged by a gas boiler or heat pump as primary source, with a built-in electric backup element. Available in 150 and 210 only (no 70 xPlus).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003eAll models use \u003cstrong\u003ePlentigrade P58 phase-change material\u003c\/strong\u003e to store thermal energy up to \u003cstrong\u003e4× more compactly\u003c\/strong\u003e than a conventional hot water cylinder. They carry a \u003cstrong\u003e10-year warranty\u003c\/strong\u003e on the heating element and PCM core, require \u003cstrong\u003eno mandatory annual maintenance\u003c\/strong\u003e, and deliver \u003cstrong\u003emains-pressure hot water on demand\u003c\/strong\u003e. A \u003cstrong\u003ethermostatic mixing valve (TMV) is required by UK Building Regulations\u003c\/strong\u003e at the hot water outlet.\u003c\/p\u003e\n\u003c!-- Spec table --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; font-size: 17px; font-weight: bold; margin: 0 0 0;\"\u003eKey Specifications by Model\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 0 0 28px; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #008377CF; color: #fff;\"\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eePlus 70\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eePlus 150\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003eePlus 210\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003exPlus 150\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 12px; border: 1px solid #c8e6e3; font-weight: bold;\"\u003exPlus 210\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: 600;\"\u003eHeat source\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eGrid \/ PV\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eGrid \/ PV\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eGrid \/ PV\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eBoiler \/ HP\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003eBoiler \/ HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: 600;\"\u003eCylinder equiv.\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e~74 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e~140 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e~212 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e~128 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e~192 L\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: 600;\"\u003eV40 output\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e105 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e199 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e301 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e167 L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e271 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: 600;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e440 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e640 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e870 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e640 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e870 mm\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: 600;\"\u003eW × D\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; text-align: center;\" colspan=\"5\"\u003e365 × 575 mm (all models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: 600;\"\u003eNet weight (empty)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e75 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e136 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e172 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e129 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e176 kg\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: 600;\"\u003eGross weight (filled)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e79 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e140 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e178 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e136 kg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e187 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #fff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3; font-weight: 600;\"\u003eMax. HW flow\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e6 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e15 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e20 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e15 L\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #c8e6e3;\"\u003e20 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- FAQ --\u003e\n\u003cdiv style=\"background: #008377CF; color: #fff; padding: 10px 16px; border-radius: 4px; font-size: 17px; font-weight: bold; margin: 0 0 12px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px;\"\u003e\n\u003csummary style=\"background: #e6f4f3; padding: 12px 16px; font-weight: 600; cursor: pointer; border-radius: 6px;\"\u003eWhat is Zonzini stairclimber delivery?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 15px;\"\u003eZonzini is a \u003cstrong\u003especialist heavy-appliance delivery service\u003c\/strong\u003e that uses tracked stairclimber equipment to move units safely — including up stairs and into tight installation spaces that a standard pallet courier cannot access. It is the correct delivery method for Sunamp Thermino heat batteries.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px;\"\u003e\n\u003csummary style=\"background: #e6f4f3; padding: 12px 16px; font-weight: 600; cursor: pointer; border-radius: 6px;\"\u003eDoes this surcharge cover the Thermino 300 as well?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 15px;\"\u003eNo — the Thermino 300 has its own separate delivery surcharge due to its greater size and weight. This surcharge applies to the \u003cstrong\u003eThermino 70, 150 and 210 only\u003c\/strong\u003e (ePlus and xPlus variants).\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px;\"\u003e\n\u003csummary style=\"background: #e6f4f3; padding: 12px 16px; font-weight: 600; cursor: pointer; border-radius: 6px;\"\u003eWhat is the difference between the Thermino ePlus and xPlus?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 15px;\"\u003eThe \u003cstrong\u003eePlus\u003c\/strong\u003e is a \u003cstrong\u003edirect electric\u003c\/strong\u003e heat battery — charged from the mains grid, with solar PV upgradeable via the Optimino key. It replaces a direct hot water cylinder. The \u003cstrong\u003exPlus\u003c\/strong\u003e is an \u003cstrong\u003eindirect\u003c\/strong\u003e unit charged by a boiler or heat pump as the primary source, with an electric backup element — available in 150 and 210 sizes.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px;\"\u003e\n\u003csummary style=\"background: #e6f4f3; padding: 12px 16px; font-weight: 600; cursor: pointer; border-radius: 6px;\"\u003eWhy must I call before ordering?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 15px;\"\u003eZonzini deliveries require a \u003cstrong\u003epre-booked slot\u003c\/strong\u003e and confirmation that the stairclimber is suitable for your staircase type and access route. Ordering without calling first may result in delays or a failed delivery.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"border: 1px solid #c8e6e3; border-radius: 6px; margin-bottom: 10px;\"\u003e\n\u003csummary style=\"background: #e6f4f3; padding: 12px 16px; font-weight: 600; cursor: pointer; border-radius: 6px;\"\u003eHow far in advance should I book?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 15px;\"\u003eWe recommend calling at least \u003cstrong\u003e3–5 working days\u003c\/strong\u003e before your installation date. Shorter lead times are sometimes possible — call to check availability.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"Default Title","offer_id":64619299012957,"sku":"Zonzini-Small","price":395.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/zonzini-stairclimber-sunamp-water-heat-battery-stair-transport.webp?v=1777983524"},{"product_id":"zonzini-stairclimber-delivery-surcharge-sunamp-thermino-300-eplus-300-xplus-300-scheduled-delivery","title":"Zonzini Stairclimber Delivery Surcharge – Sunamp Thermino 300 (ePlus 300 \/ xPlus 300) Scheduled Delivery","description":"\u003cdiv style=\"font-family:Arial,sans-serif;font-size:16px;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.7;\"\u003e\n\n  \u003cp style=\"margin:0 0 20px;\"\u003e\n    This surcharge covers \u003cstrong\u003etracked stairclimber delivery by Zonzini\u003c\/strong\u003e for the\n    \u003cstrong\u003eSunamp Thermino 300\u003c\/strong\u003e heat battery — available as the \u003cstrong\u003eThermino ePlus 300\u003c\/strong\u003e\n    (direct electric) or the \u003cstrong\u003eThermino xPlus 300\u003c\/strong\u003e (boiler \/ heat pump indirect).\n    At \u003cstrong\u003e220–233 kg\u003c\/strong\u003e and 1,050 mm tall, the Thermino 300 is too large and heavy for a\n    standard courier drop. Zonzini's specialist stairclimber equipment handles the unit safely wherever\n    it needs to go — including up stairs and into awkward install locations.\n    \u003cstrong\u003ePlease call us before ordering\u003c\/strong\u003e so we can book a suitable delivery slot.\n  \u003c\/p\u003e\n\n  \u003c!-- Red warning callout --\u003e\n  \u003cdiv style=\"background:#fff5f5;border-left:4px solid #c0392b;padding:14px 18px;border-radius:4px;margin:0 0 20px;\"\u003e\n    \u003cstrong style=\"color:#c0392b;\"\u003e⚠ Call to Schedule — Do Not Order Without Booking First\u003c\/strong\u003e\u003cbr\u003e\n    Delivery of the Thermino 300 must be \u003cstrong\u003epre-arranged by phone\u003c\/strong\u003e. We need to confirm site\n    access, agree a delivery window, and ensure the stairclimber team is briefed on your installation point.\n    \u003cstrong\u003eCall us on 01234 567890\u003c\/strong\u003e before adding this surcharge to your basket.\n  \u003c\/div\u003e\n\n  \u003c!-- Stat strip --\u003e\n  \u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:0 0 24px;\"\u003e\n    \u003cdiv style=\"flex:1;min-width:130px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:22px;font-weight:700;\"\u003e220–233 kg\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eUnit weight\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:130px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:22px;font-weight:700;\"\u003e1,050 mm\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eHeight\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:130px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:22px;font-weight:700;\"\u003eStairclimber\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eZonzini tracked delivery\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"flex:1;min-width:130px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 12px;text-align:center;\"\u003e\n      \u003cdiv style=\"font-size:22px;font-weight:700;\"\u003ePre-booked\u003c\/div\u003e\n      \u003cdiv style=\"font-size:13px;margin-top:4px;\"\u003eScheduled slot\u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- What the service covers --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:17px;font-weight:700;margin:0 0 14px;\"\u003e\n    What the Zonzini Surcharge Covers\n  \u003c\/div\u003e\n\n  \u003cul style=\"margin:0 0 24px;padding-left:22px;line-height:1.8;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTracked stairclimber delivery\u003c\/strong\u003e by Zonzini's specialist two-person crew — not a standard courier pallet drop.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDelivery up stairs and into restricted install locations\u003c\/strong\u003e such as airing cupboards, plant rooms, and upper-floor utility spaces.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePre-booked time slot\u003c\/strong\u003e confirmed with you before despatch — no all-day waiting.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUpright handling throughout\u003c\/strong\u003e — the Thermino 300 must never be laid on its side; Zonzini's equipment keeps it correctly oriented at all times.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProof of delivery\u003c\/strong\u003e documentation provided at handover.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- Amber callout – upright handling --\u003e\n  \u003cdiv style=\"background:#fff8e1;border-left:4px solid #f59e0b;padding:14px 18px;border-radius:4px;margin:0 0 24px;\"\u003e\n    \u003cstrong style=\"color:#b45309;\"\u003e⚠ Must Remain Upright\u003c\/strong\u003e\u003cbr\u003e\n    The Thermino 300 contains \u003cstrong\u003ePlentigrade P58 phase-change material and vacuum insulation panels\u003c\/strong\u003e.\n    Tipping or laying the unit on its side can cause permanent damage and void the warranty.\n    Zonzini's stairclimber equipment is specifically designed to keep heavy appliances upright throughout the delivery.\n  \u003c\/div\u003e\n\n  \u003c!-- About the product --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:17px;font-weight:700;margin:0 0 14px;\"\u003e\n    About the Sunamp Thermino 300\n  \u003c\/div\u003e\n\n  \u003cp style=\"margin:0 0 10px;\"\u003e\n    The \u003cstrong\u003eThermino 300\u003c\/strong\u003e is Sunamp's largest fifth-generation heat battery — equivalent to a\n    300-litre hot water cylinder, but \u003cstrong\u003eup to 4× more compact\u003c\/strong\u003e. It is available in two variants:\n  \u003c\/p\u003e\n  \u003cul style=\"margin:0 0 18px;padding-left:22px;line-height:1.8;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThermino ePlus 300\u003c\/strong\u003e — charged by the mains grid via a built-in 2,800 W element; solar PV diversion upgradeable with the Optimino ePV key. Delivers \u003cstrong\u003e436 litres of hot water at 40 °C\u003c\/strong\u003e per charge.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThermino xPlus 300\u003c\/strong\u003e — charged by a gas boiler or heat pump as primary source, with a built-in electric backup element. Configurable with Optimino keys for heat pump or PV integration. Delivers \u003cstrong\u003e333 litres at 40 °C\u003c\/strong\u003e per charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp style=\"margin:0 0 18px;\"\u003e\n    Both variants share the same footprint (\u003cstrong\u003e365 mm W × 575 mm D × 1,050 mm H\u003c\/strong\u003e), use\n    \u003cstrong\u003ePlentigrade P58 phase-change material\u003c\/strong\u003e, carry a \u003cstrong\u003e10-year warranty\u003c\/strong\u003e on the\n    heating element and PCM core, and require \u003cstrong\u003eno mandatory annual maintenance\u003c\/strong\u003e.\n    A \u003cstrong\u003ethermostatic mixing valve (TMV) is required by UK Building Regulations\u003c\/strong\u003e at the hot water outlet.\n  \u003c\/p\u003e\n\n  \u003c!-- Spec table --\u003e\n  \u003cdiv style=\"background:#008377CF;color:#fff;padding:10px 16px;border-radius:4px;font-size:17px;font-weight:700;margin:0 0 0;\"\u003e\n    Key Specifications\n  \u003c\/div\u003e\n  \u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 28px;font-size:15px;\"\u003e\n    \u003ctr style=\"background:#008377CF;color:#fff;\"\u003e\n      \u003ctd style=\"padding:10px 14px;border:1px solid #c8e6e3;font-weight:700;width:46%;\"\u003eSpecification\u003c\/td\u003e\n      \u003ctd style=\"padding:10px 14px;border:1px solid #c8e6e3;font-weight:700;\"\u003eePlus 300\u003c\/td\u003e\n      \u003ctd style=\"padding:10px 14px;border:1px solid #c8e6e3;font-weight:700;\"\u003exPlus 300\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003ePrimary heat source\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003eGrid electricity\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003eBoiler or heat pump\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eCylinder equivalent\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e~306 L\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e~256 L\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eV40 hot water output\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e436 L per charge\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e333 L per charge\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eDimensions (W × D × H)\u003c\/td\u003e\n      \u003ctd colspan=\"2\" style=\"padding:9px 14px;border:1px solid #c8e6e3;text-align:center;\"\u003e365 × 575 × 1,050 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eWeight (net empty \/ gross filled)\u003c\/td\u003e\n      \u003ctd colspan=\"2\" style=\"padding:9px 14px;border:1px solid #c8e6e3;text-align:center;\"\u003e220 kg \/ 233 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eHeating element\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e2,800 W (primary)\u003c\/td\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;\"\u003e2,800 W (standby backup)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eHeat loss rate\u003c\/td\u003e\n      \u003ctd colspan=\"2\" style=\"padding:9px 14px;border:1px solid #c8e6e3;text-align:center;\"\u003e0.84 kWh\/24 h (34.9 W)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eMax. HW flow rate\u003c\/td\u003e\n      \u003ctd colspan=\"2\" style=\"padding:9px 14px;border:1px solid #c8e6e3;text-align:center;\"\u003e25 L\/min\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n      \u003ctd style=\"padding:9px 14px;border:1px solid #c8e6e3;font-weight:600;\"\u003eWarranty\u003c\/td\u003e\n      \u003ctd colspan=\"2\" style=\"padding:9px 14px;border:1px solid #c8e6e3;text-align:center;\"\u003e10 years — element \u0026amp; PCM core\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:4px;font-size:17px;font-weight:700;margin:0 0 12px;\"\u003e\n    Frequently Asked Questions\n  \u003c\/div\u003e\n\n  \u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n    \u003csummary style=\"background:#e6f4f3;padding:12px 16px;font-weight:600;cursor:pointer;border-radius:6px;\"\u003e\n      What is Zonzini stairclimber delivery?\n    \u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;font-size:15px;\"\u003e\n      Zonzini is a \u003cstrong\u003especialist delivery service\u003c\/strong\u003e that uses tracked stairclimber equipment to move\n      heavy appliances safely — including up stairs, through narrow corridors, and into difficult installation\n      locations that a standard pallet delivery cannot reach. It is the appropriate delivery method for the\n      Thermino 300 due to its weight and size.\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:#e6f4f3;padding:12px 16px;font-weight:600;cursor:pointer;border-radius:6px;\"\u003e\n      What is the difference between the ePlus 300 and xPlus 300?\n    \u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;font-size:15px;\"\u003e\n      The \u003cstrong\u003eePlus 300\u003c\/strong\u003e is a \u003cstrong\u003edirect electric\u003c\/strong\u003e heat battery charged from the grid;\n      it can be upgraded for solar PV with an Optimino key. The \u003cstrong\u003exPlus 300\u003c\/strong\u003e is an\n      \u003cstrong\u003eindirect\u003c\/strong\u003e unit charged by a boiler or heat pump, with an electric backup element.\n      Both weigh and measure the same and both require this delivery surcharge.\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:#e6f4f3;padding:12px 16px;font-weight:600;cursor:pointer;border-radius:6px;\"\u003e\n      Why must I call before ordering?\n    \u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;font-size:15px;\"\u003e\n      Zonzini deliveries for the Thermino 300 require \u003cstrong\u003eadvance planning\u003c\/strong\u003e — vehicle access,\n      stairclimber suitability for your staircase, and a pre-booked slot with the delivery crew. Ordering\n      without calling first may result in delays or a failed delivery attempt. Call us on \u003cstrong\u003e01234 567890\u003c\/strong\u003e\n      to confirm everything before placing your order.\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:#e6f4f3;padding:12px 16px;font-weight:600;cursor:pointer;border-radius:6px;\"\u003e\n      How far in advance should I book?\n    \u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;font-size:15px;\"\u003e\n      We recommend calling at least \u003cstrong\u003e5–7 working days\u003c\/strong\u003e before your installation date to allow\n      time for slot allocation and route planning. Shorter lead times may be possible — call to check.\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:#e6f4f3;padding:12px 16px;font-weight:600;cursor:pointer;border-radius:6px;\"\u003e\n      What if there is visible damage on arrival?\n    \u003c\/summary\u003e\n    \u003cdiv style=\"padding:14px 16px;font-size:15px;\"\u003e\n      \u003cstrong\u003eNote any damage on the delivery paperwork before signing\u003c\/strong\u003e, photograph it immediately,\n      and contact us the same day. Do not attempt to install a visibly damaged unit — call us first so we\n      can arrange an inspection or replacement.\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Sunamp","offers":[{"title":"Default Title","offer_id":64619307893085,"sku":"Zonzini-Large","price":595.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/zonzini-stairclimber-sunamp-water-heat-battery-stair-transport.webp?v=1777983524"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/Sunamp.png?v=1778654600","url":"https:\/\/qualityheating.co.uk\/collections\/sunamp.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}