{"product_id":"joule-invacyl-unvented-300l-indirect-cylinder-standard","title":"Joule Invacyl Unvented 300L Indirect Cylinder Standard","description":"\u003cp\u003eThe Joule Invacyl Unvented 300L Indirect Cylinder Standard is a high-capacity, indirect hot water storage cylinder designed for unvented mains-pressure systems. Built for dependable domestic and commercial hot water supply, it stores ~295 L of usable hot water while supporting powerful primary heating via a stainless-steel coil. Suited for utility rooms, plant rooms and larger properties, it delivers stable hot water at mains pressure with low heat loss and a long manufacturer warranty for安心 (peace of mind).\u003c\/p\u003e\u003ch2\u003e Key Features \u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e Capacity: 295.3 L actual storage for large hot water demand. \u003c\/li\u003e\n\u003cli\u003e Indirect coil heating: 316L stainless steel coil rated 17.26 kW with 0.79 m² surface area. \u003c\/li\u003e\n\u003cli\u003e High build quality: LDX 2101 cylinder material with coated mild steel outer casing. \u003c\/li\u003e\n\u003cli\u003e Thermal insulation: Dense PU foam for improved energy retention and low heat loss (2.04 kW\/24h). \u003c\/li\u003e\n\u003cli\u003e Unvented mains pressure: Maximum mains water pressure 10 bar, operating pressure 7 bar for strong delivery. \u003c\/li\u003e\n\u003cli\u003e Safety and testing: Tested to BS EN 12897:2016; safety valve temp 90 °C. \u003c\/li\u003e\n\u003cli\u003e Immersion heater compatible: 3 kW @ 230 V immersion specification. \u003c\/li\u003e\n\u003cli\u003e Durability \u0026amp; warranty: 25-year warranty for long-term reliability. \u003c\/li\u003e\n\u003cli\u003e Low primary resistance: Coil resistance 0.2 bar and max primary pressure 6 bar for efficient circulation. \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e Ideal Use Cases \u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e Residential homes with high hot-water demand (large families). \u003c\/li\u003e\n\u003cli\u003e Commercial buildings and small businesses requiring consistent mains-pressure hot water. \u003c\/li\u003e\n\u003cli\u003e Heating systems using boilers, heat pumps or solar thermal as primary heat sources. \u003c\/li\u003e\n\u003cli\u003e Renovation or new-build projects needing an unvented cylinder solution for modern interiors. \u003c\/li\u003e\n\u003cli\u003e Utility or plant rooms where robust, long-lasting hot water storage is required. \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e Product Specifications \u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e Product model \u003c\/td\u003e\n\u003ctd\u003e Joule Invacyl Unvented 300L Indirect Cylinder Standard \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Actual capacity (Ltr) \u003c\/td\u003e\n\u003ctd\u003e295.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Max mains water pressure (Bar) \u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Operating pressure (Bar) \u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Operating temperature (°C) \u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Safety valve temperature (°C) \u003c\/td\u003e\n\u003ctd\u003e90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Unit weight empty (kg) \u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Unit weight full (kg) \u003c\/td\u003e\n\u003ctd\u003e355\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Cylinder material \u003c\/td\u003e\n\u003ctd\u003e LDX 2101 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Outer casing \u003c\/td\u003e\n\u003ctd\u003e Coated mild steel \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Thermal insulation \u003c\/td\u003e\n\u003ctd\u003e Dense PU foam \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Foam thickness \u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Heat loss (kW\/24h) \u003c\/td\u003e\n\u003ctd\u003e2.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Coil material \u003c\/td\u003e\n\u003ctd\u003e 316L stainless steel \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Coil 1 rating (kW) \u003c\/td\u003e\n\u003ctd\u003e17.26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Coil 1 surface area (m²) \u003c\/td\u003e\n\u003ctd\u003e0.79\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Coil 1 max primary pressure (Bar) \u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Coil 1 resistance (Bar) \u003c\/td\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Immersion spec \u003c\/td\u003e\n\u003ctd\u003e 3 kW @ 230 V \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e No diving \u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e No heat exchangers \u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Tested to standard \u003c\/td\u003e\n\u003ctd\u003e BS EN 12897:2016 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e Warranty terms (Year) \u003c\/td\u003e\n\u003ctd\u003e25Y\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Joule","offers":[{"title":"Default Title","offer_id":52983455252816,"sku":"TRBMVI-0300LFC","price":656.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/5268\/4624\/files\/joule-invacyl-unvented-300l-indirect-cylinder-standard-9606741.jpg?v=1778338336","url":"https:\/\/getplumb.co.uk\/products\/joule-invacyl-unvented-300l-indirect-cylinder-standard","provider":"Getplumb","version":"1.0","type":"link"}