{"title":"JAB","description":"","products":[{"product_id":"jab-tsc-150l-direct-e7-man-fill-thermal-store-cylinder","title":"JAB TSC 150L Direct E7 Man-Fill Thermal Store Cylinder","description":"\u003cdiv style=\"font-size:16px;font-family:Arial,sans-serif;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eJAB TSC 150L Direct E7 Man-Fill\u003c\/strong\u003e is a \u003cstrong\u003edirect electric open-vented thermal store\u003c\/strong\u003e designed to deliver \u003cstrong\u003emains-pressure hot water using Economy 7 or off-peak electricity\u003c\/strong\u003e, specifically engineered for \u003cstrong\u003enew-build apartments\u003c\/strong\u003e and other buildings where routing an unvented cylinder discharge pipe is impractical or prohibited. As a \u003cstrong\u003ethermal store\u003c\/strong\u003e, the primary water vessel operates at atmospheric pressure — eliminating the need for a temperature and pressure relief valve, discharge pipework, or Part G G3 annual maintenance. The 150-litre store charges overnight during cheap-rate hours, with mains-pressure hot water delivered via an \u003cstrong\u003einternal heat exchanger coil\u003c\/strong\u003e. The \u003cstrong\u003eMan-Fill configuration\u003c\/strong\u003e means the store is filled via a dedicated fill point, keeping the primary circuit separate from the domestic cold mains. \u003cstrong\u003eHWA specification compliant\u003c\/strong\u003e and \u003cstrong\u003ePart L1A approved\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:20px 0;\"\u003e\n  \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;\"\u003e150 L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eStore volume\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;\"\u003eE7\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eOff-peak electric\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;\"\u003eNo G3\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eNo annual maintenance\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;\"\u003eNo T\u0026amp;P\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eNo discharge pipe needed\u003c\/div\u003e\n\u003c\/div\u003e\n  \u003cdiv style=\"flex:1;min-width:110px;background:#008377CF;color:#fff;border-radius:8px;padding:14px 10px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:700;\"\u003eHWA\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px;margin-top:4px;\"\u003eSpec compliant\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#e6f4f3;border-left:4px solid #008377CF;padding:14px 16px;border-radius:6px;margin:16px 0;\"\u003e\n  \u003cstrong style=\"color:#005c54;\"\u003eApartment-compliant solution:\u003c\/strong\u003e Building Regulations Part G prohibits connecting a discharge pipe from an unvented cylinder into a soil stack. The JAB TSC thermal store operates at atmospheric pressure and \u003cstrong\u003erequires no discharge pipe at all\u003c\/strong\u003e — making it the correct and compliant solution for new-build apartment installations.\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fffbea;border-left:4px solid #e6a817;padding:14px 16px;border-radius:6px;margin:16px 0;\"\u003e\n  \u003cstrong style=\"color:#b07d00;\"\u003eElectrical connection:\u003c\/strong\u003e The immersion heater circuit must be wired by a \u003cstrong\u003ePart P competent electrician\u003c\/strong\u003e. The E7 immersion requires a \u003cstrong\u003ededicated Economy 7 supply\u003c\/strong\u003e with appropriate time-switching to the off-peak rate — confirm with the property's electrical supply arrangements before ordering.\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-bottom:24px;\"\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eOpen Vented Thermal Store — No G3 Discharge Pipe Required\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe JAB TSC operates as an \u003cstrong\u003eopen vented thermal store at atmospheric pressure\u003c\/strong\u003e. Unlike unvented cylinders, it does \u003cstrong\u003enot require a temperature and pressure relief valve or a discharge pipe\u003c\/strong\u003e. This directly solves a common installation problem in apartment buildings where Building Regulations Part G prohibits routing a discharge pipe into a soil stack — making the JAB TSC the compliant solution where an unvented cylinder cannot legally be installed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eMains-Pressure Hot Water via Internal Coil\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe mains cold water supply passes through an \u003cstrong\u003einternal heat exchanger coil\u003c\/strong\u003e inside the primary store. The store water is heated by the immersion heater and transfers heat across the coil to the incoming cold, delivering \u003cstrong\u003efast-flowing mains-pressure hot water\u003c\/strong\u003e to taps and showers — with no pump required and no pressure losses typical of gravity-fed systems.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eEconomy 7 \/ Off-Peak Electric Optimised\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe JAB TSC is \u003cstrong\u003especifically designed for Economy 7 and off-peak electricity tariffs\u003c\/strong\u003e. The large store volume (150 L, 180 L or 210 L) is heated overnight during cheap-rate hours and holds sufficient hot energy for an entire day's domestic use. This makes it the natural choice for \u003cstrong\u003enew-build apartments without a gas connection\u003c\/strong\u003e where electricity tariff optimisation reduces running costs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eScale-Free Primary Water — No Annual Maintenance\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe immersion elements are \u003cstrong\u003epermanently immersed in the same primary (store) water\u003c\/strong\u003e, which is never renewed. Since this water is not replaced, \u003cstrong\u003eno scaling of the elements occurs\u003c\/strong\u003e — even in hard water areas. JAB thermal stores therefore \u003cstrong\u003edo not require the annual maintenance\u003c\/strong\u003e that unvented cylinders demand under Building Regulations, reducing whole-life running costs.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eManual Fill (Man-Fill) Configuration\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe Man-Fill (manual fill) configuration means the primary store is \u003cstrong\u003efilled manually via a fill point\u003c\/strong\u003e rather than being permanently connected to the mains cold supply for the store. This simplifies the installation pipework and is the preferred configuration for new-build apartments where the store circuit is kept isolated from the domestic mains. The mains connection is only made to the heat exchanger coil serving the hot water outlets.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#f0faf9;border:1px solid #c8e6e3;border-radius:8px;padding:16px;\"\u003e\n    \u003cdiv style=\"font-weight:700;color:#008377;border-bottom:2px solid #008377CF;padding-bottom:6px;margin-bottom:10px;\"\u003eHWA Compliant — Part L1A Approved\u003c\/div\u003e\n    \u003cp style=\"margin:0;font-size:15px;\"\u003eThe JAB TSC range \u003cstrong\u003efully complies with the HWA (Hot Water Association) specification for thermal stores\u003c\/strong\u003e and meets \u003cstrong\u003ePart L1A Building Regulations\u003c\/strong\u003e for both new build and refurbishment. JAB's innovative design ensures installation and ongoing maintenance are straightforward — the installer-friendly layout reduces commissioning time on site.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eTechnical Specifications — JAB TSC 150L Direct E7 Man-Fill\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;margin-bottom:24px;\"\u003e\n  \u003cthead\u003e\u003ctr style=\"background:#005c54;color:#fff;\"\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding:10px 12px;text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eStore volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e150 L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eHeating type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eDirect electric — Economy 7 \/ off-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eFill configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eManual fill (Man-Fill)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eStore operating pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eAtmospheric (open vented)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eHot water pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eMains pressure (via internal heat exchanger coil)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eT\u0026amp;P relief valve required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eDischarge pipe required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eAnnual G3 maintenance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eNot required\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eRegulatory compliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eHWA Thermal Store Specification; Part L1A (new build and refurbishment)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#fff;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eScale risk on elements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eMinimal — primary water not renewed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f0faf9;\"\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e\u003cstrong\u003eInstaller qualification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eCompetent plumber + Part P electrician for wiring\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#008377CF;color:#fff;padding:12px 18px;border-radius:6px;margin:28px 0 16px;font-size:17px;font-weight:700;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\n\u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n  \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat is the difference between a thermal store and an unvented cylinder?\u003c\/summary\u003e\n  \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eAn \u003cstrong\u003eunvented cylinder\u003c\/strong\u003e stores domestic hot water under mains pressure — it requires a T\u0026amp;P relief valve and a discharge pipe routed to a safe termination point. A \u003cstrong\u003ethermal store\u003c\/strong\u003e (like the JAB TSC) stores heated \u003cstrong\u003eprimary water at atmospheric pressure\u003c\/strong\u003e in an open-vented configuration. The mains cold water passes through a heat exchanger coil and picks up heat — it never enters the store. This means \u003cstrong\u003eno T\u0026amp;P valve and no discharge pipe are required\u003c\/strong\u003e, which is critical in apartment buildings where discharge pipe routing is prohibited by Part G.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n  \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eDoes the JAB TSC need a qualified installer?\u003c\/summary\u003e\n  \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eAs an \u003cstrong\u003eopen-vented thermal store\u003c\/strong\u003e, the JAB TSC does not fall under the Part G G3 unvented regulations — it does not need a G3-qualified installer. However, installation must still be carried out by a \u003cstrong\u003ecompetent plumber\u003c\/strong\u003e in accordance with the installation manual and Building Regulations Part L1A. Electrical connections to the immersion heaters must be made by a \u003cstrong\u003ePart P competent electrician\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n  \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eDoes the JAB thermal store need annual servicing like an unvented cylinder?\u003c\/summary\u003e\n  \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eNo — \u003cstrong\u003eJAB thermal stores do not require the annual maintenance\u003c\/strong\u003e prescribed for unvented cylinders under Building Regulations. The primary store water is never replaced, so no scale builds up on the immersion elements. There is no T\u0026amp;P valve or expansion relief valve to test annually. Periodic inspection of the heat exchanger connections and blend valve is advisable, but this is not the same annual regulatory requirement that applies to G3 unvented systems.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n  \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eCan the JAB TSC be used in a hard water area?\u003c\/summary\u003e\n  \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eYes — the JAB thermal store has a natural advantage in hard water areas. Because the \u003cstrong\u003eprimary store water is never renewed\u003c\/strong\u003e, it can only deposit scale once when first heated. Subsequent heating cycles use the same softened (de-gassed) water, so the immersion elements \u003cstrong\u003edo not accumulate scale over time\u003c\/strong\u003e. Limescale may form in the heat exchanger coil over time if mains water is very hard, but this occurs far more slowly than in a direct cylinder.\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"border:1px solid #c8e6e3;border-radius:6px;margin-bottom:10px;\"\u003e\n  \u003csummary style=\"background:#008377CF;color:#fff;padding:12px 16px;border-radius:5px;cursor:pointer;font-weight:600;list-style:none;\"\u003eWhat tariff should the JAB TSC be used with?\u003c\/summary\u003e\n  \u003cdiv style=\"padding:14px 16px;background:#f9fefe;\"\u003eThe JAB TSC is optimised for \u003cstrong\u003eEconomy 7, Economy 10, or any time-of-use tariff\u003c\/strong\u003e with a defined cheap-rate overnight window. The large store volume is heated during cheap-rate hours and retains sufficient stored heat for the following day's use without requiring daytime top-up in most households. Time switches or smart immersion controllers can be used to control which hours the immersion heater operates.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"Default Title","offer_id":64644856316253,"sku":"TSC150","price":1495.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABTSCDirectE7Man-FillThermalStoreCylinder.webp?v=1778257522"},{"product_id":"jab-duc-2-indirect-hi-flo-500l-unvented-cylinder","title":"JAB DUC 2 Indirect Hi-Flo 500L Unvented Cylinder","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Indirect Hi-Flo\u003c\/strong\u003e is a high-recovery unvented stainless-steel hot water storage cylinder built for households and light commercial premises with heavy simultaneous hot water demand. Heated indirectly from a boiler coil and backed up by \u003cstrong\u003etwin 3kW immersion heaters\u003c\/strong\u003e, it combines a \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e shell with a factory-fitted safety group and a remote-mounted expansion vessel, and is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e500L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eStored Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e38kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCoil Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e40 min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003e75% Reheat (Boiler)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eEnergy Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe remote expansion vessel ships with its own wall-mounting bracket, and the full unvented installation kit is included, so the only additions on site are pipework, insulation lagging where required, and the structural connections listed below.\u003c\/p\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3. Unqualified installation is unsafe and may invalidate warranty cover.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the twin immersion heaters, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB Indirect Hi-Flo\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e construction resists pitting and stress corrosion far better than standard 304-grade tanks, so the vessel holds up in hard-water areas without the enamel-lining failures common in steel cylinders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eHigh-Output Coil Design\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eA generously sized internal coil is engineered for \u003cstrong\u003efast recovery\u003c\/strong\u003e even after heavy simultaneous draw-off, which is why JAB rates this range for restaurants, salons, and multi-bathroom houses rather than single-occupancy homes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eRather than clamping the expansion vessel to the cylinder body, JAB supplies it as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket, freeing up airing-cupboard space and simplifying servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDual Back-Up Immersion\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eTwin \u003cstrong\u003e3kW immersion elements\u003c\/strong\u003e give a fully independent electric back-up route to hot water, so the household isn't left without hot water if the boiler or heat source is ever down for repair.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFactory-Set Safety Group\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003etemperature and pressure relief valve\u003c\/strong\u003e is factory-calibrated and tested before dispatch, removing a common on-site commissioning error and shortening installation time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBecause the \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships in the box, the installer isn't left sourcing tundish, valves, or pipework fittings separately, which keeps first-fix time down and avoids incompatible third-party parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eCapacity \u0026amp; Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e500L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eDimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1850mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e710mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eA – Immersion Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e240mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eB – Thermostat Pocket Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e270mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eC – Boiler Flow Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e640mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eD – Secondary Return Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e890mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eE – Hot Water Draw-Off Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1390mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e38kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (from cold)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e50 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (75% draw-off, with boiler)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e40 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003e24-Hour Standing Heat Loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e3.15 kWh \/ 24hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInlet Valve Group\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ hot and cold, 28mm inlet control valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heater(s)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed and commissioned by a \u003cstrong\u003eBenchmark or G3-qualified installer\u003c\/strong\u003e in line with Building Regulations Part G3, and the installation must be notified to Building Control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat heat source does the Indirect Hi-Flo use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt's designed to be heated \u003cstrong\u003eindirectly via a boiler coil\u003c\/strong\u003e connected to a gas, oil, or heat pump boiler, with the twin 3kW immersion heaters providing independent electric back-up.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this cylinder be used with a heat pump?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, the indirect coil can be run from a heat pump circuit, though coil surface area and flow temperature should be checked against the heat pump's output to confirm expected reheat performance, since the published reheat times assume a boiler heat source.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat's the difference between the Hi-Flo range and the standard JAB Duc 2 Indirect range?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe Hi-Flo range uses a \u003cstrong\u003elarger-capacity coil\u003c\/strong\u003e for faster recovery under heavy demand and is aimed at light commercial or high-occupancy applications, whereas the standard Indirect range is sized for typical domestic use.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes the cylinder come with a warranty?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB cylinders are supplied with a manufacturer's warranty; please confirm the current warranty term and registration process directly with JAB Products or your supplier at the time of purchase, as terms are subject to change.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat space is needed around the cylinder for servicing?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eBecause the expansion vessel is \u003cstrong\u003ewall-mounted separately\u003c\/strong\u003e from the cylinder body, allow clear wall space nearby for the bracket in addition to the airing-cupboard footprint of the cylinder itself.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"Default Title","offer_id":65209237242205,"sku":"JAB-DUC2-HF-500-Ind","price":1949.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-indirect-hi-flo-400l-unvented-cylinder","title":"JAB DUC 2 Indirect Hi-Flo 400L Unvented Cylinder","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Indirect Hi-Flo\u003c\/strong\u003e is a high-recovery unvented stainless-steel hot water storage cylinder built for households and light commercial premises with heavy simultaneous hot water demand. Heated indirectly from a boiler coil and backed up by \u003cstrong\u003etwin 3kW immersion heaters\u003c\/strong\u003e, it combines a \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e shell with a factory-fitted safety group and a remote-mounted expansion vessel, and is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e400L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eStored Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e32kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCoil Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e35 min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003e75% Reheat (Boiler)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eEnergy Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe remote expansion vessel ships with its own wall-mounting bracket, and the full unvented installation kit is included, so the only additions on site are pipework, insulation lagging where required, and the structural connections listed below.\u003c\/p\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3. Unqualified installation is unsafe and may invalidate warranty cover.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the twin immersion heaters, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB Indirect Hi-Flo\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e construction resists pitting and stress corrosion far better than standard 304-grade tanks, so the vessel holds up in hard-water areas without the enamel-lining failures common in steel cylinders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eHigh-Output Coil Design\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eA generously sized internal coil is engineered for \u003cstrong\u003efast recovery\u003c\/strong\u003e even after heavy simultaneous draw-off, which is why JAB rates this range for restaurants, salons, and multi-bathroom houses rather than single-occupancy homes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eRather than clamping the expansion vessel to the cylinder body, JAB supplies it as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket, freeing up airing-cupboard space and simplifying servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDual Back-Up Immersion\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eTwin \u003cstrong\u003e3kW immersion elements\u003c\/strong\u003e give a fully independent electric back-up route to hot water, so the household isn't left without hot water if the boiler or heat source is ever down for repair.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFactory-Set Safety Group\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003etemperature and pressure relief valve\u003c\/strong\u003e is factory-calibrated and tested before dispatch, removing a common on-site commissioning error and shortening installation time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBecause the \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships in the box, the installer isn't left sourcing tundish, valves, or pipework fittings separately, which keeps first-fix time down and avoids incompatible third-party parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eCapacity \u0026amp; Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e400L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eDimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1600mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e710mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eA – Immersion Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e240mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eB – Thermostat Pocket Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e270mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eC – Boiler Flow Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e640mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eD – Secondary Return Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e870mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eE – Hot Water Draw-Off Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1240mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e32kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (from cold)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e45 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (75% draw-off, with boiler)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e35 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003e24-Hour Standing Heat Loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2.94 kWh \/ 24hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInlet Valve Group\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ hot and cold, 28mm inlet control valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heater(s)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed and commissioned by a \u003cstrong\u003eBenchmark or G3-qualified installer\u003c\/strong\u003e in line with Building Regulations Part G3, and the installation must be notified to Building Control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat heat source does the Indirect Hi-Flo use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt's designed to be heated \u003cstrong\u003eindirectly via a boiler coil\u003c\/strong\u003e connected to a gas, oil, or heat pump boiler, with the twin 3kW immersion heaters providing independent electric back-up.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this cylinder be used with a heat pump?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, the indirect coil can be run from a heat pump circuit, though coil surface area and flow temperature should be checked against the heat pump's output to confirm expected reheat performance, since the published reheat times assume a boiler heat source.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat's the difference between the Hi-Flo range and the standard JAB Duc 2 Indirect range?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe Hi-Flo range uses a \u003cstrong\u003elarger-capacity coil\u003c\/strong\u003e for faster recovery under heavy demand and is aimed at light commercial or high-occupancy applications, whereas the standard Indirect range is sized for typical domestic use.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes the cylinder come with a warranty?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB cylinders are supplied with a manufacturer's warranty; please confirm the current warranty term and registration process directly with JAB Products or your supplier at the time of purchase, as terms are subject to change.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat space is needed around the cylinder for servicing?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eBecause the expansion vessel is \u003cstrong\u003ewall-mounted separately\u003c\/strong\u003e from the cylinder body, allow clear wall space nearby for the bracket in addition to the airing-cupboard footprint of the cylinder itself.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"Default Title","offer_id":65209368478045,"sku":"JAB-DUC2-HF-400-Ind","price":1649.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-indirect-hi-flo-300l-unvented-cylinder","title":"JAB DUC 2 Indirect Hi-Flo 300L Unvented Cylinder","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Indirect Hi-Flo\u003c\/strong\u003e is a high-recovery unvented stainless-steel hot water storage cylinder built for households and light commercial premises with heavy simultaneous hot water demand. Heated indirectly from a boiler coil and backed up by \u003cstrong\u003etwin 3kW immersion heaters\u003c\/strong\u003e, it combines a \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e shell with a factory-fitted safety group and a remote-mounted expansion vessel, and is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e300L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eStored Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e32kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCoil Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e29 min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003e75% Reheat (Boiler)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eEnergy Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe remote expansion vessel ships with its own wall-mounting bracket, and the full unvented installation kit is included, so the only additions on site are pipework, insulation lagging where required, and the structural connections listed below.\u003c\/p\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3. Unqualified installation is unsafe and may invalidate warranty cover.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the twin immersion heaters, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB Indirect Hi-Flo\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e construction resists pitting and stress corrosion far better than standard 304-grade tanks, so the vessel holds up in hard-water areas without the enamel-lining failures common in steel cylinders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eHigh-Output Coil Design\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eA generously sized internal coil is engineered for \u003cstrong\u003efast recovery\u003c\/strong\u003e even after heavy simultaneous draw-off, which is why JAB rates this range for restaurants, salons, and multi-bathroom houses rather than single-occupancy homes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eRather than clamping the expansion vessel to the cylinder body, JAB supplies it as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket, freeing up airing-cupboard space and simplifying servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDual Back-Up Immersion\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eTwin \u003cstrong\u003e3kW immersion elements\u003c\/strong\u003e give a fully independent electric back-up route to hot water, so the household isn't left without hot water if the boiler or heat source is ever down for repair.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFactory-Set Safety Group\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003etemperature and pressure relief valve\u003c\/strong\u003e is factory-calibrated and tested before dispatch, removing a common on-site commissioning error and shortening installation time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBecause the \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships in the box, the installer isn't left sourcing tundish, valves, or pipework fittings separately, which keeps first-fix time down and avoids incompatible third-party parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eCapacity \u0026amp; Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eDimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1800mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eA – Immersion Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e195mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eB – Thermostat Pocket Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e225mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eC – Boiler Flow Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e555mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eD – Secondary Return Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1255mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eE – Hot Water Draw-Off Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1435mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e32kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (from cold)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e40 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (75% draw-off, with boiler)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e29 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003e24-Hour Standing Heat Loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2.71 kWh \/ 24hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInlet Valve Group\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ hot and cold, 28mm inlet control valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heater(s)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed and commissioned by a \u003cstrong\u003eBenchmark or G3-qualified installer\u003c\/strong\u003e in line with Building Regulations Part G3, and the installation must be notified to Building Control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat heat source does the Indirect Hi-Flo use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt's designed to be heated \u003cstrong\u003eindirectly via a boiler coil\u003c\/strong\u003e connected to a gas, oil, or heat pump boiler, with the twin 3kW immersion heaters providing independent electric back-up.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this cylinder be used with a heat pump?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, the indirect coil can be run from a heat pump circuit, though coil surface area and flow temperature should be checked against the heat pump's output to confirm expected reheat performance, since the published reheat times assume a boiler heat source.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat's the difference between the Hi-Flo range and the standard JAB Duc 2 Indirect range?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe Hi-Flo range uses a \u003cstrong\u003elarger-capacity coil\u003c\/strong\u003e for faster recovery under heavy demand and is aimed at light commercial or high-occupancy applications, whereas the standard Indirect range is sized for typical domestic use.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes the cylinder come with a warranty?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB cylinders are supplied with a manufacturer's warranty; please confirm the current warranty term and registration process directly with JAB Products or your supplier at the time of purchase, as terms are subject to change.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat space is needed around the cylinder for servicing?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eBecause the expansion vessel is \u003cstrong\u003ewall-mounted separately\u003c\/strong\u003e from the cylinder body, allow clear wall space nearby for the bracket in addition to the airing-cupboard footprint of the cylinder itself.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"Default Title","offer_id":65209406619997,"sku":"JAB-DUC2-HF-300-Ind","price":1270.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-indirect-hi-flo-250l-unvented-cylinder","title":"JAB DUC 2 Indirect Hi-Flo 250L Unvented Cylinder","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Indirect Hi-Flo\u003c\/strong\u003e is a high-recovery unvented stainless-steel hot water storage cylinder built for households and light commercial premises with heavy simultaneous hot water demand. Heated indirectly from a boiler coil and backed up by \u003cstrong\u003etwin 3kW immersion heaters\u003c\/strong\u003e, it combines a \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e shell with a factory-fitted safety group and a remote-mounted expansion vessel, and is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e250L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eStored Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e28kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCoil Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e25 min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003e75% Reheat (Boiler)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eEnergy Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe remote expansion vessel ships with its own wall-mounting bracket, and the full unvented installation kit is included, so the only additions on site are pipework, insulation lagging where required, and the structural connections listed below.\u003c\/p\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3. Unqualified installation is unsafe and may invalidate warranty cover.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the twin immersion heaters, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB Indirect Hi-Flo\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e construction resists pitting and stress corrosion far better than standard 304-grade tanks, so the vessel holds up in hard-water areas without the enamel-lining failures common in steel cylinders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eHigh-Output Coil Design\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eA generously sized internal coil is engineered for \u003cstrong\u003efast recovery\u003c\/strong\u003e even after heavy simultaneous draw-off, which is why JAB rates this range for restaurants, salons, and multi-bathroom houses rather than single-occupancy homes.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eRather than clamping the expansion vessel to the cylinder body, JAB supplies it as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket, freeing up airing-cupboard space and simplifying servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDual Back-Up Immersion\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eTwin \u003cstrong\u003e3kW immersion elements\u003c\/strong\u003e give a fully independent electric back-up route to hot water, so the household isn't left without hot water if the boiler or heat source is ever down for repair.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFactory-Set Safety Group\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003etemperature and pressure relief valve\u003c\/strong\u003e is factory-calibrated and tested before dispatch, removing a common on-site commissioning error and shortening installation time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBecause the \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships in the box, the installer isn't left sourcing tundish, valves, or pipework fittings separately, which keeps first-fix time down and avoids incompatible third-party parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eCapacity \u0026amp; Construction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eGrade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eDimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eOverall Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eA – Immersion Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e195mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eB – Thermostat Pocket Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e225mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eC – Boiler Flow Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e555mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eD – Secondary Return Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e975mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eE – Hot Water Draw-Off Height\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1140mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil Output\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (from cold)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e35 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eReheat Time (75% draw-off, with boiler)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e25 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003e24-Hour Standing Heat Loss\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2.69 kWh \/ 24hrs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInlet Valve Group\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ hot and cold, 28mm inlet control valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heater(s)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW single phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed and commissioned by a \u003cstrong\u003eBenchmark or G3-qualified installer\u003c\/strong\u003e in line with Building Regulations Part G3, and the installation must be notified to Building Control.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat heat source does the Indirect Hi-Flo use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt's designed to be heated \u003cstrong\u003eindirectly via a boiler coil\u003c\/strong\u003e connected to a gas, oil, or heat pump boiler, with the twin 3kW immersion heaters providing independent electric back-up.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this cylinder be used with a heat pump?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, the indirect coil can be run from a heat pump circuit, though coil surface area and flow temperature should be checked against the heat pump's output to confirm expected reheat performance, since the published reheat times assume a boiler heat source.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat's the difference between the Hi-Flo range and the standard JAB Duc 2 Indirect range?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe Hi-Flo range uses a \u003cstrong\u003elarger-capacity coil\u003c\/strong\u003e for faster recovery under heavy demand and is aimed at light commercial or high-occupancy applications, whereas the standard Indirect range is sized for typical domestic use.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes the cylinder come with a warranty?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB cylinders are supplied with a manufacturer's warranty; please confirm the current warranty term and registration process directly with JAB Products or your supplier at the time of purchase, as terms are subject to change.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat space is needed around the cylinder for servicing?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eBecause the expansion vessel is \u003cstrong\u003ewall-mounted separately\u003c\/strong\u003e from the cylinder body, allow clear wall space nearby for the bracket in addition to the airing-cupboard footprint of the cylinder itself.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"Default Title","offer_id":65209422709085,"sku":"JAB-DUC2-HF-250-Ind","price":1150.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-horizontal-unvented-cylinders-125l-300l","title":"JAB DUC 2 Horizontal Unvented Indirect Cylinders (125L-300L)","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Horizontal\u003c\/strong\u003e range is an unvented stainless-steel hot water storage cylinder designed to lie on its side rather than stand upright, making it the practical choice for \u003cstrong\u003eloft conversions\u003c\/strong\u003e and installations where ceiling or cupboard height is restricted. Available in \u003cstrong\u003esix capacities from 125L to 300L\u003c\/strong\u003e, every size is built from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e with a 316L-grade internal coil, heated indirectly from a gas or oil-fired boiler and backed up by \u003cstrong\u003etwin factory-fitted 3kW immersion heaters\u003c\/strong\u003e that can also run the cylinder standalone on non-boiler-fed installations. The full range is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e125–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e6\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eSizes Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e316L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCoil \u0026amp; Fittings Grade\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eLifetime*\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eInner Vessel Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eMounting cradles and the full unvented installation kit are supplied as standard on every size, and the remote expansion vessel ships with its own wall-mounting bracket, keeping each cylinder's own footprint as compact as possible.\u003c\/p\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eMounting orientation is safety-critical:\u003c\/strong\u003e every size in this range must be installed horizontally on the \u003cstrong\u003esupplied cradles\u003c\/strong\u003e with all pipework connections uppermost. It must not be stood on end or rotated along its long axis, and installation must be carried out by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e and notified to Building Control under Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background: #FFF6E5; border-left: 4px solid #B26A00; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eFootprint note:\u003c\/strong\u003e the length and diameter figures in the size table below are for the \u003cstrong\u003ecylinder only\u003c\/strong\u003e on each model and exclude the remote expansion vessel, which is wall-mounted separately on its own bracket. Allow additional nearby wall space when planning the installation.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the twin immersion heaters, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB Horizontal\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eLow-Height Horizontal Format\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eLying the cylinder on its side rather than standing it vertically means it fits into \u003cstrong\u003erestricted roof or cupboard heights\u003c\/strong\u003e where a standard upright cylinder simply won't stand, making it a common choice for loft conversions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDual-Purpose Immersion Back-Up\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe factory-fitted \u003cstrong\u003e2 x 3kW immersion heaters\u003c\/strong\u003e aren't just boiler back-up – they let the cylinder run as a \u003cstrong\u003efully standalone electric water heater\u003c\/strong\u003e on installations with no boiler connection at all.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003e316L Coil \u0026amp; Fittings\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe internal coil and compression fittings are \u003cstrong\u003e316L-grade stainless steel\u003c\/strong\u003e, chosen for its resistance to chloride pitting where the coil sees continuous wetted contact with boiler-circuit water.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe expansion vessel is supplied as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket rather than clamped to the cylinder body, which keeps the horizontal footprint compact and eases future servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eCradles \u0026amp; Full Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eMounting \u003cstrong\u003ecradles\u003c\/strong\u003e and the \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e are supplied as standard on every size, so the installer isn't left sourcing support brackets or safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eSizes \u0026amp; Pricing\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0px; font-size: 13px; height: 127.312px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; height: 18.1875px; width: 18.7835%;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; height: 18.1875px; width: 39.1771%;\"\u003eLength (Cylinder Only)\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; height: 18.1875px; width: 42.0394%;\"\u003eDiameter (Cylinder Only)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(255, 255, 255); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e900mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e510mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(247, 251, 250); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e1075mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e510mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(255, 255, 255); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e1200mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e510mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(247, 251, 250); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e1175mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e555mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(255, 255, 255); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e1500mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e555mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: rgb(247, 251, 250); height: 18.1875px;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 18.7835%;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 39.1771%;\"\u003e1800mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); height: 18.1875px; width: 42.0394%;\"\u003e555mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConstruction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel, horizontal format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil \u0026amp; Fittings Grade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCapacities Available\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e125L, 150L, 170L, 200L, 250L, 300L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eFittings\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e22mm compression, 316L stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFactory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heater(s)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW, factory-fitted (boiler back-up or standalone use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eMounting\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eSupplied cradles required – connections uppermost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eWarranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInner Container\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eLifetime manufacturing warranty*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eComponents\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 years*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this cylinder run without a boiler connection?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, on every size in the range. The \u003cstrong\u003e2 x 3kW immersion heaters\u003c\/strong\u003e are factory-fitted for use on non-boiler-fed installations as well as boiler-fed ones, so the cylinder can operate as a standalone electric water heater.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eHow should the cylinder be mounted?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt must be mounted \u003cstrong\u003ehorizontally on the supplied cradles\u003c\/strong\u003e with the pipework connections uppermost, exactly as specified by JAB; it should not be installed standing on its end or rotated along its long axis, as this affects coil performance and venting of the safety group.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDo the quoted dimensions include the expansion vessel?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eNo. The length and diameter figures for each size are for the \u003cstrong\u003ecylinder only\u003c\/strong\u003e. The expansion vessel is wall-mounted separately on its own bracket, so allow additional nearby wall space for it.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat heat source does the horizontal range use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe internal coil is designed for a \u003cstrong\u003egas or oil-fired boiler\u003c\/strong\u003e as the main heat source, with the twin immersion heaters providing independent electric back-up or standalone operation, across all six capacities.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat warranty does JAB provide?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB horizontal cylinders carry a \u003cstrong\u003elifetime manufacturing warranty on the inner container\u003c\/strong\u003e (2 years on components); confirm the current warranty terms and registration process with JAB Products or your supplier at the time of purchase, as conditions may apply.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"125L","offer_id":65212987834717,"sku":"DUC2-H-125L","price":715.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65212987867485,"sku":"DUC2-H-150L","price":770.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65212987900253,"sku":"DUC2-H-170L","price":830.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65212987933021,"sku":"DUC2-H-200L","price":895.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65212987965789,"sku":"DUC2-H-250L","price":970.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65212987998557,"sku":"DUC2-H-300L","price":1100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JabHorizontal.jpg?v=1783661268"},{"product_id":"jab-dov-direct-vented-cylinders-90l-200l","title":"JAB DOV Direct Vented Cylinders (90L-200L)","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DOV Direct Vented\u003c\/strong\u003e cylinder is a stainless-steel replacement for traditional open-vented copper hot water cylinders, fed from a cold water storage cistern rather than mains pressure. Available in \u003cstrong\u003efive capacities from 90L to 200L\u003c\/strong\u003e, each in a choice of \u003cstrong\u003eStandard or Slim\u003c\/strong\u003e format, it's built from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e and supplied with factory-fitted immersion heaters – twin 3kW elements on the 125L–200L sizes for multi-rate tariff flexibility. It is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e90–200L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eFormats: Standard \/ Slim\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e2 x 3kW*\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eImmersion (125–200L)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e470–510mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eDiameter Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e25 Years\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCylinder Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eVented\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCylinder Type\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eThis is a vented cylinder, not unvented:\u003c\/strong\u003e it must be fed by gravity from a cold water storage (feed and expansion) cistern, typically in the loft, with an open vent pipe terminating over that cistern. It does not use the mains-pressure unvented kit, T\u0026amp;P relief valve, or expansion vessel found on JAB's unvented ranges.\u003c\/div\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e installation must be carried out by a competent person in accordance with the \u003cstrong\u003eWater Regulations\u003c\/strong\u003e and Building Regulations, including correct sizing and positioning of the feed and expansion cistern and vent pipe.\u003c\/div\u003e\n\u003cdiv style=\"background: #FFF6E5; border-left: 4px solid #B26A00; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eImmersion configuration varies by size:\u003c\/strong\u003e the \u003cstrong\u003e90L model has a single 3kW immersion\u003c\/strong\u003e, while \u003cstrong\u003e125L–200L models are fitted with 2 x 3kW immersions and thermostats\u003c\/strong\u003e as standard for multi-rate tariff use. Confirm the correct model when ordering.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the immersion heater(s), must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB DOV Direct Vented\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDirect Replacement for Copper Cylinders\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eSized and configured to \u003cstrong\u003ereplace old grade 1–3 copper cylinders\u003c\/strong\u003e directly, so existing airing-cupboard pipework and fixings can usually be reused.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eTwin Immersion for Multi-Rate Tariffs\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003e2 x 3kW immersion heaters and thermostats\u003c\/strong\u003e fitted to the 125–200L sizes let the cylinder heat water on separate schedules, making it well suited to \u003cstrong\u003eEconomy 7\u003c\/strong\u003e and similar multi-rate electricity tariffs.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eCompact Diameter\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eAt \u003cstrong\u003e470–510mm diameter\u003c\/strong\u003e, the cylinder is no larger than a standard 450mm foamed copper cylinder, so it drops into existing airing cupboards without rebuilding the space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eStandard or Slim Format\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eEvery capacity is available as a \u003cstrong\u003estandard-diameter\u003c\/strong\u003e or \u003cstrong\u003eslimline\u003c\/strong\u003e cylinder at the same price, so the format can be chosen to suit the available cupboard width rather than height.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Construction\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than the mild steel used in older copper-jacketed cylinders.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003e25-Year Cylinder Warranty\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBacked by a \u003cstrong\u003e25-year warranty\u003c\/strong\u003e on the cylinder itself, reflecting the expected service life of the stainless-steel vessel.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eSizes, Formats\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 20.2147%;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 19.8569%;\"\u003eFormat\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 36.8515%;\"\u003eDimensions (H x D)\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 23.0769%;\"\u003eImmersion\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e750 x 510mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eSlim\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e900 x 470mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e900 x 510mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eSlim\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1050 x 470mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1050 x 510mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eSlim\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1200 x 470mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1200 x 510mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eSlim\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1500 x 470mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1500 x 510mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 20.2147%;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 19.8569%;\"\u003eSlim\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 36.8515%;\"\u003e1800 x 470mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 23.0769%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConstruction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eDirect, vented (open-vented), duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e25 years on the cylinder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ female iron (from feed \u0026amp; expansion cistern)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eHot Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ female iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eSecondary Return \/ Shower Connection\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1″ female iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eElectrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heaters (90L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eImmersion Heaters (125L–200L)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 x 3kW with thermostats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eIs this a vented or unvented cylinder?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThis is a \u003cstrong\u003evented (open-vented) cylinder\u003c\/strong\u003e, fed by gravity from a cold water storage cistern rather than direct from the mains. It is not interchangeable with JAB's unvented ranges, which require a completely different installation kit and mains-pressure feed.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDo I need a cold water storage cistern to install this?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As a vented cylinder it must be fed from a \u003cstrong\u003ecold water storage (feed and expansion) cistern\u003c\/strong\u003e, typically in the loft, with an open vent pipe terminating over that cistern.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat's the difference between the Standard and Slim format?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eBoth hold the same capacity and cost the same; the \u003cstrong\u003eStandard\u003c\/strong\u003e format uses a wider, shorter shell while the \u003cstrong\u003eSlim\u003c\/strong\u003e format is narrower and taller, so the choice comes down to which best fits the available airing-cupboard footprint.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eIs the 90L model the same as the rest of the range electrically?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eNo. The \u003cstrong\u003e90L model has a single 3kW immersion heater\u003c\/strong\u003e, while all other capacities (125L–200L) are fitted with \u003cstrong\u003e2 x 3kW immersion heaters and thermostats\u003c\/strong\u003e as standard.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eCan this be used on an Economy 7 tariff?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes, the twin-immersion 125L–200L models are specifically suited to \u003cstrong\u003eEconomy 7\u003c\/strong\u003e and similar multi-rate tariffs, with each element able to be scheduled independently.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need a temperature and pressure relief valve?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eNo. As a vented cylinder it relies on the \u003cstrong\u003eopen vent pipe\u003c\/strong\u003e over the feed and expansion cistern for pressure relief rather than a mechanical T\u0026amp;P valve, which is specific to unvented systems.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"ST 90L","offer_id":65213030007133,"sku":"DOV-D-90-ST","price":450.0,"currency_code":"GBP","in_stock":true},{"title":"Slim 90L","offer_id":65213030039901,"sku":"DOV-D-90-SLIM","price":450.0,"currency_code":"GBP","in_stock":true},{"title":"ST 125L","offer_id":65213030072669,"sku":"DOV-D-125-ST","price":470.0,"currency_code":"GBP","in_stock":true},{"title":"Slim 125L","offer_id":65213030105437,"sku":"DOV-D-125-SLIM","price":470.0,"currency_code":"GBP","in_stock":true},{"title":"ST 150L","offer_id":65213030138205,"sku":"DOV-D-150-ST","price":495.0,"currency_code":"GBP","in_stock":true},{"title":"Slim 150L","offer_id":65213030170973,"sku":"DOV-D-150-SLIM","price":495.0,"currency_code":"GBP","in_stock":true},{"title":"ST 170L","offer_id":65213030203741,"sku":"DOV-D-170-ST","price":530.0,"currency_code":"GBP","in_stock":true},{"title":"Slim 170L","offer_id":65213030236509,"sku":"DOV-D-170-SLIM","price":530.0,"currency_code":"GBP","in_stock":true},{"title":"ST 200L","offer_id":65213030269277,"sku":"DOV-D-200-ST","price":570.0,"currency_code":"GBP","in_stock":true},{"title":"Slim 200L","offer_id":65213030302045,"sku":"DOV-D-200-SLIM","price":570.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABDOVDirectVentedCylinders.jpg?v=1783664008"},{"product_id":"jab-duc-ie-compact-pre-plumbed-indirect-unvented-cylinders-200l-300l","title":"JAB DUC IE Compact Pre-Plumbed Indirect Unvented Cylinders (200L-300L)","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC IE Compact Pre-Plumbed Indirect\u003c\/strong\u003e is an internal-expansion unvented hot water cylinder available in \u003cstrong\u003e200L, 250L, and 300L\u003c\/strong\u003e capacities, built from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e with a 550mm diameter across the range. The heating side is supplied \u003cstrong\u003efactory pre-plumbed\u003c\/strong\u003e with a twin-zone manifold, circulating pump, zone valves, filling loop, and expansion kit already fitted, cutting first-fix time on site. Domestic hot water is heated indirectly from a boiler or renewable heat source and backed up by a \u003cstrong\u003efactory-fitted 3kW immersion heater\u003c\/strong\u003e. It is \u003cstrong\u003emanufactured in the UK\u003c\/strong\u003e and \u003cstrong\u003eWRAS approved\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e200–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e550mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDiameter (All Sizes)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e1 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e19.94–23.57kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoil Rating Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e25 Years*\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eWarranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eWRAS\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eApproved\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003ePre-plumbed heating pack:\u003c\/strong\u003e the heating circuit on this cylinder is factory-assembled with a \u003cstrong\u003etwin-zone manifold\u003c\/strong\u003e, \u003cstrong\u003ecirculating pump\u003c\/strong\u003e, \u003cstrong\u003ezone valves\u003c\/strong\u003e, \u003cstrong\u003eautomatic bypass valve\u003c\/strong\u003e, \u003cstrong\u003efilling loop\u003c\/strong\u003e, \u003cstrong\u003eheating expansion vessel\u003c\/strong\u003e, and \u003cstrong\u003epressure gauge\u003c\/strong\u003e – the components typically supplied on a pre-plumbed indirect cylinder. Confirm the exact manifold configuration (e.g. system vs regular boiler compatibility) with your supplier for the specific installation.\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the twin-zone pump, zone valves, and back-up immersion heater, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC IE Compact Pre-Plumbed Indirect\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eTwin-Zone Pre-Plumbed Pack\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eFactory-fitted with a \u003cstrong\u003etwin-zone heating manifold\u003c\/strong\u003e, this cylinder ships with the heating-side pipework, valves, and controls already assembled and pressure-tested, so the installer connects flow, return, and electrics rather than building the manifold on site.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eCirculating Pump \u0026amp; Zone Valves Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe pre-plumbed pack includes a \u003cstrong\u003eheating circulating pump\u003c\/strong\u003e and \u003cstrong\u003etwin 2-port zone valves\u003c\/strong\u003e for independent heating and hot water zones, along with an \u003cstrong\u003eautomatic bypass valve\u003c\/strong\u003e to protect the pump when zones are shut.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFilling Loop \u0026amp; Expansion Kit Fitted\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA \u003cstrong\u003efilling loop\u003c\/strong\u003e, \u003cstrong\u003eheating expansion vessel\u003c\/strong\u003e, and \u003cstrong\u003epressure gauge\u003c\/strong\u003e are pre-fitted to the heating circuit, so the installer isn't sourcing and plumbing in these components separately on site.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eInternal Expansion Design (Domestic Water)\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eBuilding the domestic hot water expansion volume \u003cstrong\u003einside the cylinder\u003c\/strong\u003e removes the need for a separate external expansion vessel on the cold-mains side, simplifying installation further.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eIndependent Immersion Back-Up\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA factory-fitted \u003cstrong\u003e3kW immersion heater\u003c\/strong\u003e gives an independent electric back-up route to hot water if the primary heat source is ever down.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCoil Rating\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eStanding Heat Loss\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eErP Band\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1425mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e19.94kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.70 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1725mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e20.68kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.99 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1950mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e23.57kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2.26 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel, internal expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e550mm (all sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eMade in the UK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eApproval\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eWRAS approved\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eMax Flow Rate\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eUp to 55 litres\/min (minimum recommended supply 20 litres\/min at 1.5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003ePre-Plumbed Heating Pack\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eManifold\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eTwin-zone, factory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCirculating Pump\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eZone Valves\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eTwin 2-port zone valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eBypass\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eAutomatic bypass valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eFilling Loop\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHeating Expansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003ePressure Gauge\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-fitted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eDomestic Hot Water Connections \u0026amp; Safety\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion (Domestic Water)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eInternal – no external expansion vessel required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eImmersion Heater\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW, factory-fitted (back-up)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHeat Source\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eBoiler or renewable heat source, via internal coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eWarranty\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e25 years, including 1 year on-site cover*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat does \"Pre-Plumbed\" include on this cylinder?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe heating side comes factory-assembled with a \u003cstrong\u003etwin-zone manifold\u003c\/strong\u003e, \u003cstrong\u003ecirculating pump\u003c\/strong\u003e, \u003cstrong\u003etwin 2-port zone valves\u003c\/strong\u003e, \u003cstrong\u003eautomatic bypass valve\u003c\/strong\u003e, \u003cstrong\u003efilling loop\u003c\/strong\u003e, \u003cstrong\u003eheating expansion vessel\u003c\/strong\u003e, and \u003cstrong\u003epressure gauge\u003c\/strong\u003e – the typical components fitted to a pre-plumbed indirect cylinder so the installer connects pipework and electrics rather than assembling the heating manifold on site.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat heat source does this cylinder use?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe internal coil is designed to be heated by a \u003cstrong\u003eboiler or renewable heat source\u003c\/strong\u003e, with the factory-fitted 3kW immersion providing independent electric back-up for the domestic hot water.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDo I need an external expansion vessel for the domestic hot water?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNo. The \u003cstrong\u003einternal expansion design\u003c\/strong\u003e builds the domestic water expansion volume into the cylinder itself. A separate \u003cstrong\u003eheating-side expansion vessel\u003c\/strong\u003e is included as part of the pre-plumbed pack for the sealed heating circuit.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow does the coil rating change across the range?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eCoil output scales with capacity: \u003cstrong\u003e19.94kW at 200L\u003c\/strong\u003e, \u003cstrong\u003e20.68kW at 250L\u003c\/strong\u003e, and \u003cstrong\u003e23.57kW at 300L\u003c\/strong\u003e, per JAB's technical spec sheet for this range.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat warranty does this cylinder carry?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eA \u003cstrong\u003e25-year warranty\u003c\/strong\u003e including one year on-site cover, per the manufacturer's published features; confirm current terms and registration with your supplier at the time of purchase.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"200L","offer_id":65213030990173,"sku":"DUCIE-PP-200L","price":1330.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65213031022941,"sku":"DUCIE-PP-250L","price":1470.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65213031055709,"sku":"DUCIE-PP-300L","price":1530.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABDUCIEIndirectUnventedCylinder.jpg?v=1783665863"},{"product_id":"jab-duc-ie-direct-unvented-cylinders-90l-300l","title":"JAB DUC IE Direct Unvented Cylinders (90L-300L)","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333333;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; color: #333333; margin: 0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC IE Direct\u003c\/strong\u003e is a compact, internal-expansion unvented hot water cylinder built for modern domestic installations where space, efficiency, and reliability matter. Available in \u003cstrong\u003eseven capacities from 90L to 300L\u003c\/strong\u003e, it's constructed from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e with no boiler coil – heating is provided entirely by factory-fitted immersion heaters, whose count increases with capacity. Because the expansion volume is built in, there's \u003cstrong\u003eno external expansion vessel\u003c\/strong\u003e to find wall space for. It is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e90–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e7\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eSizes Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e550mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eDiameter (All Sizes)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e1–3 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eImmersion (By Size)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003e10 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 130px; background: #008377CF; color: #ffffff; text-align: center; padding: 16px 8px; border-radius: 8px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold; line-height: 1.2;\"\u003eInternal\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.9;\"\u003eExpansion Design\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #FDECEA; border-left: 4px solid #C62828; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background: #FFF6E5; border-left: 4px solid #B26A00; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003e\n\u003cstrong\u003eNo boiler coil fitted:\u003c\/strong\u003e as a Direct model, the immersion heater(s) are the \u003cstrong\u003esole heat source\u003c\/strong\u003e – there is no indirect coil connection for a boiler or heat pump. Immersion count varies by capacity (1 x 3kW on 90L, 2 x 3kW on 120L–200L, 3 x 3kW on 250L–300L); confirm the exact configuration in the size table before ordering.\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border-left: 4px solid #008377CF; padding: 14px 18px; margin: 18px 0; border-radius: 4px; font-size: 15px; line-height: 1.55; color: #333333;\"\u003eAll electrical connections, including the immersion heater(s), must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eWhy Choose the JAB DUC IE Direct\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 20px 0;\"\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eInternal Expansion Design\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eBuilding the expansion volume \u003cstrong\u003einside the cylinder\u003c\/strong\u003e removes the need for a separate external expansion vessel, simplifying installation and freeing up airing-cupboard space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eMains-Pressure Delivery\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eEngineered for \u003cstrong\u003emains-pressure hot water\u003c\/strong\u003e, giving strong flow rates to showers, taps, and appliances without a cold-water storage tank.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eCompact 550mm Diameter\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eA consistent \u003cstrong\u003e550mm diameter\u003c\/strong\u003e across the whole range keeps the footprint predictable when planning airing-cupboard space, whatever the capacity chosen.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eTariff-Flexible Immersion Heating\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eFactory-fitted immersion heaters (count varies by size – see the table below) let the cylinder heat water on \u003cstrong\u003edifferent schedules and tariffs\u003c\/strong\u003e, useful where electricity is the sole heat source.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #F7FBFA; border: 1px solid #E0EDEB; border-radius: 8px; padding: 16px; flex: 1; min-width: 250px;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 8px; font-size: 15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; line-height: 1.55; color: #333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eSizes \u0026amp; Pricing\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 21.6458%;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 39.5349%;\"\u003eDimensions (H x D)\u003c\/th\u003e\n\u003cth style=\"background: rgba(0, 131, 119, 0.81); color: rgb(255, 255, 255); padding: 9px 12px; font-size: 13px; text-align: left; width: 38.8193%;\"\u003eImmersion Heaters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e750 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e120L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e925 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e1125 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e1225 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e1425 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e1725 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e3 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 21.6458%;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 39.5349%;\"\u003e1950 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; font-size: 13px; color: rgb(51, 51, 51); border-bottom: 1px solid rgb(224, 237, 235); width: 38.8193%;\"\u003e3 x 3kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConstruction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eDirect, unvented, duplex stainless-steel, internal expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eCoil \u0026amp; Fittings Grade\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e316L stainless-steel (fittings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eNote\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eActual water capacity is slightly less than the nominal litre rating due to the internal air gap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eFittings\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e22mm compression, 316L stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFactory-set 10 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eExpansion\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eInternal – no external expansion vessel required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"background: #008377CF; color: #ffffff; font-weight: bold; padding: 10px 14px; font-size: 14px;\"\u003eWarranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #FFFFFF;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eInner Container\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003eLifetime manufacturing warranty*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #F7FBFA;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB; width: 55%;\"\u003eComponents\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333333; border-bottom: 1px solid #E0EDEB;\"\u003e2 years*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 32px 0 16px 0; padding-bottom: 8px; border-bottom: 2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need a boiler connection?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eNo. This is a \u003cstrong\u003edirect\u003c\/strong\u003e cylinder – it has no boiler coil and is heated solely by its factory-fitted immersion heaters, making it suited to properties where electricity is the only available heat source.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDo I still need an external expansion vessel?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eNo. The \u003cstrong\u003einternal expansion design\u003c\/strong\u003e builds the expansion volume into the cylinder itself, so a separate wall-mounted expansion vessel isn't required, unlike JAB's Duc 2 external-expansion ranges.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eHow many immersion heaters does each size have?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eIt varies by capacity: the \u003cstrong\u003e90L model has 1 x 3kW\u003c\/strong\u003e, the \u003cstrong\u003e120L–200L models have 2 x 3kW\u003c\/strong\u003e, and the \u003cstrong\u003e250L and 300L models have 3 x 3kW\u003c\/strong\u003e immersion heaters. Check the size table for the exact configuration.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat T\u0026amp;P relief valve setting does this range use?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eThe factory-fitted temperature and pressure relief valve is set at \u003cstrong\u003e10 bar \/ 90°C\u003c\/strong\u003e, which is higher than JAB's external-expansion Duc 2 range (7 bar); check this against your system design.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 10px; border: 1px solid #E0EDEB; border-radius: 6px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #ffffff; padding: 12px 16px; font-weight: bold; font-size: 14px; cursor: pointer; list-style: none;\"\u003eWhat warranty does JAB provide?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; line-height: 1.6; color: #333333; background: #FFFFFF;\"\u003eJAB cylinders carry a \u003cstrong\u003elifetime manufacturing warranty on the inner container\u003c\/strong\u003e (2 years on components); confirm current terms and registration with JAB Products or your supplier at the time of purchase.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"90L","offer_id":65213431841117,"sku":"DUCIE-D-90L","price":550.0,"currency_code":"GBP","in_stock":true},{"title":"120L","offer_id":65213367550301,"sku":"DUCIE-D-120L","price":570.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65213367583069,"sku":"DUCIE-D-150L","price":630.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65213367615837,"sku":"DUCIE-D-170L","price":650.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65213367648605,"sku":"DUCIE-D-200L","price":690.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65213367681373,"sku":"DUCIE-D-250L","price":795.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65213367714141,"sku":"DUCIE-D-300L","price":895.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABDUCIEIndirectUnventedCylinder.jpg?v=1783665863"},{"product_id":"jab-duc-ie-indirect-unvented-cylinders-120l-300l","title":"JAB DUC IE Indirect Unvented Cylinders (120L-300L)","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC IE Indirect\u003c\/strong\u003e is a compact, internal-expansion unvented hot water cylinder heated from a \u003cstrong\u003egas or oil boiler, or a renewable heat source\u003c\/strong\u003e, with a factory-fitted 3kW immersion providing independent back-up. Available in \u003cstrong\u003esix capacities from 120L to 300L\u003c\/strong\u003e, it's constructed from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e, and because the expansion volume is built in, there's \u003cstrong\u003eno external expansion vessel\u003c\/strong\u003e to find wall space for. It is \u003cstrong\u003emanufactured in Britain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e120–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e6\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSizes Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e550mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDiameter (All Sizes)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e1 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e10 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eInternal\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eExpansion Design\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eNote on stated capacity range:\u003c\/strong\u003e JAB's marketing copy for this range advertises “90–300 litre capacities”, but no 90L model is currently listed for sale – the smallest size available is 120L. Confirm with JAB Products directly if a 90L unit is required.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the back-up immersion heater, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC IE Indirect\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eInternal Expansion Design\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eBuilding the expansion volume \u003cstrong\u003einside the cylinder\u003c\/strong\u003e removes the need for a separate external expansion vessel, simplifying installation and freeing up airing-cupboard space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eBoiler or Renewable Heat Source\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe indirect coil connection lets the cylinder be heated by a \u003cstrong\u003egas or oil boiler, or a renewable heat source\u003c\/strong\u003e such as a heat pump, with the coil doing the day-to-day heavy lifting.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eIndependent Immersion Back-Up\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA factory-fitted \u003cstrong\u003e3kW immersion heater\u003c\/strong\u003e gives an independent electric back-up route to hot water if the primary heat source is ever down.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eCompact 550mm Diameter\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA consistent \u003cstrong\u003e550mm diameter\u003c\/strong\u003e across the whole range keeps the footprint predictable when planning airing-cupboard space, whatever the capacity chosen.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Pricing\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eDimensions (H x D)\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eBack-Up Immersion\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e120L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e925 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£630.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1125 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£660.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1225 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£690.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1425 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£720.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1725 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£810.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1950 x 550mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e£870.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel, internal expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCoil \u0026amp; Fittings Grade\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e316L stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eManufacture\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eMade in Britain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eNote\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eActual water capacity is slightly less than the nominal litre rating due to the internal air gap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eFittings\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm compression, 316L stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-set 10 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eInternal – no external expansion vessel required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHeat Source\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eGas\/oil boiler or renewable heat source, via internal coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eWarranty\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eInner Container\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eLifetime manufacturing warranty*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eComponents\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 years*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat heat source does this cylinder use?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe internal coil is designed to be heated by a \u003cstrong\u003egas or oil-fired boiler, or a renewable heat source\u003c\/strong\u003e such as a heat pump, with the factory-fitted 3kW immersion providing independent electric back-up.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDo I still need an external expansion vessel?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNo. The \u003cstrong\u003einternal expansion design\u003c\/strong\u003e builds the expansion volume into the cylinder itself, so a separate wall-mounted expansion vessel isn't required, unlike JAB's Duc 2 external-expansion ranges.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow does this differ from the IE Direct range?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe IE Direct range has \u003cstrong\u003eno boiler coil\u003c\/strong\u003e and relies entirely on immersion heaters, while this Indirect range is heated primarily by a \u003cstrong\u003eboiler or renewable source\u003c\/strong\u003e, with a single immersion as back-up rather than the main heat source.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat T\u0026amp;P relief valve setting does this range use?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe factory-fitted temperature and pressure relief valve is set at \u003cstrong\u003e10 bar \/ 90°C\u003c\/strong\u003e, which is higher than JAB's external-expansion Duc 2 range (7 bar); check this against your system design.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat warranty does JAB provide?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eJAB cylinders carry a \u003cstrong\u003elifetime manufacturing warranty on the inner container\u003c\/strong\u003e (2 years on components); confirm current terms and registration with JAB Products or your supplier at the time of purchase.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"90L","offer_id":65213551280477,"sku":"DUCIE-IN-90L","price":650.0,"currency_code":"GBP","in_stock":true},{"title":"120L","offer_id":65213551313245,"sku":"DUCIE-IN-120L","price":670.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65213551346013,"sku":"DUCIE-IN-150L","price":695.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65213551378781,"sku":"DUCIE-IN-170L","price":730.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65213551411549,"sku":"DUCIE-IN-200L","price":790.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65213551444317,"sku":"DUCIE-IN-250L","price":895.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65213551477085,"sku":"DUCIE-IN-300L","price":850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABDUCIEIndirectUnventedCylinder.jpg?v=1783665863"},{"product_id":"jab-duc-ie-indirect-slimline-unvented-cylinders-120l-200l","title":"JAB DUC IE Indirect Slimline Unvented Cylinders (120L-200L)","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC IE Indirect Slimline\u003c\/strong\u003e is a narrow-diameter, internal-expansion unvented hot water cylinder, built at just \u003cstrong\u003e480mm diameter\u003c\/strong\u003e for airing cupboards too tight for JAB's standard internal-expansion range. Available in \u003cstrong\u003efour capacities from 120L to 200L\u003c\/strong\u003e, it's constructed from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e, heated indirectly from a gas or oil boiler or renewable heat source, and backed up by a \u003cstrong\u003efactory-fitted 3kW immersion heater\u003c\/strong\u003e. Because the expansion volume is built in, there's \u003cstrong\u003eno external expansion vessel\u003c\/strong\u003e to find wall space for.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e120–200L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e480mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDiameter (All Sizes)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e1 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eBack-Up Immersion\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e18.76–19.36kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCoil Rating Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eEnergy Rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eInternal\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eExpansion Design\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eT\u0026amp;P relief valve pressure rating not specified:\u003c\/strong\u003e JAB's technical spec sheet for this range gives the temperature and pressure relief valve's fitting height on the cylinder but does not state its bar rating. Confirm the exact setting from the installation manual or with JAB Products before commissioning.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the back-up immersion heater, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC IE Indirect Slimline\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eSlim 480mm Diameter\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eAt just \u003cstrong\u003e480mm diameter\u003c\/strong\u003e, this cylinder fits airing cupboards too narrow for JAB's standard 550mm-diameter internal-expansion range, without sacrificing the internal-expansion design.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eInternal Expansion Design\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eBuilding the expansion volume \u003cstrong\u003einside the cylinder\u003c\/strong\u003e removes the need for a separate external expansion vessel, keeping the slim footprint free of extra wall-mounted components.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eBoiler or Renewable Heat Source\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe indirect coil connection lets the cylinder be heated by a \u003cstrong\u003egas or oil boiler, or a renewable heat source\u003c\/strong\u003e such as a heat pump, with coil output rising from 18.76kW at 120L to 19.36kW at 200L.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eIndependent Immersion Back-Up\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA factory-fitted \u003cstrong\u003e3kW immersion heater\u003c\/strong\u003e gives an independent electric back-up route to hot water if the primary heat source is ever down.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCoil Rating\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eStanding Heat Loss\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eErP Band\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e120L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1250mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e18.76kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.37 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1525mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e18.82kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.60 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1700mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e19.22kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.70 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1950mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e19.36kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.80 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eConnection Heights\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCold Inlet\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeating Flow\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eReturn\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eControl Stat\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eImmersion\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eT\u0026amp;P Valve\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e120L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e175mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e280mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e350mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e330mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e820mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e175mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e280mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e350mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e330mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1010mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e175mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e280mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e430mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e410mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e175mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e280mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e430mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e410mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1300mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel, slimline internal expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e480mm (all sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eEnergy Rating (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eInternal – no external expansion vessel required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eImmersion Heater\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW, factory-fitted (back-up)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHeat Source\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eGas\/oil boiler or renewable heat source, via internal coil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eWarranty\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eInner Container\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eLifetime manufacturing warranty*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eComponents\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 years*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat heat source does this cylinder use?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe internal coil is designed to be heated by a \u003cstrong\u003egas or oil-fired boiler, or a renewable heat source\u003c\/strong\u003e such as a heat pump, with the factory-fitted 3kW immersion providing independent electric back-up.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDo I need an external expansion vessel?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNo. The \u003cstrong\u003einternal expansion design\u003c\/strong\u003e builds the expansion volume into the cylinder itself, so a separate wall-mounted expansion vessel isn't required.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow is this different from the standard JAB DUC IE Indirect range?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThis Slimline version uses the same internal-expansion principle but in a narrower \u003cstrong\u003e480mm diameter\u003c\/strong\u003e shell (versus 550mm on the standard IE Indirect range), for tighter airing cupboards, with correspondingly taller cylinders at each capacity.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow does the coil rating change across the range?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eCoil output scales gently with capacity: \u003cstrong\u003e18.76kW at 120L\u003c\/strong\u003e, \u003cstrong\u003e18.82kW at 150L\u003c\/strong\u003e, \u003cstrong\u003e19.22kW at 170L\u003c\/strong\u003e, and \u003cstrong\u003e19.36kW at 200L\u003c\/strong\u003e, per JAB's technical spec sheet for this range.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat warranty does JAB provide?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eJAB cylinders carry a \u003cstrong\u003elifetime manufacturing warranty on the inner container\u003c\/strong\u003e (2 years on components); confirm current terms and registration with JAB Products or your supplier at the time of purchase.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"120L","offer_id":65213730652509,"sku":"DUCIE-IN-SL-120L","price":770.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65213730685277,"sku":"DUCIE-IN-SL-150L","price":830.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65213730718045,"sku":"DUCIE-IN-SL-170L","price":1050.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65213730750813,"sku":"DUCIE-IN-200L","price":790.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABDUCIEIndirectUnventedCylinder.jpg?v=1783665863"},{"product_id":"jab-duc-2-standard-indirect-unvented-cylinders-90l-300l","title":"JAB DUC 2 Standard Indirect Unvented Cylinders (90L-300L)","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Indirect\u003c\/strong\u003e is a standard-format unvented hot water cylinder built for typical domestic installations, heated indirectly from a gas or oil-fired boiler and backed up by factory-fitted \u003cstrong\u003eimmersion heating\u003c\/strong\u003e. Available in \u003cstrong\u003eseven capacities from 90L to 300L\u003c\/strong\u003e, it combines a \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e shell with a remote-mounted expansion vessel and a factory-set safety group.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e90–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e7\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSizes Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e1–2 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eImmersion (By Size)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e26–40 min\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eReheat Time (10°C–60°C)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eRemote\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eExpansion Vessel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eSecondary return not standard on smaller sizes:\u003c\/strong\u003e the 22mm secondary return connection is \u003cstrong\u003enot supplied as standard on the 90L–170L\u003c\/strong\u003e models – it's only fitted as standard from \u003cstrong\u003e200L upwards\u003c\/strong\u003e. Confirm this against the project requirement before specifying a smaller cylinder for a system with a secondary return circuit.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the immersion heater(s), must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC 2 Indirect\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe expansion vessel is supplied as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket rather than clamped to the cylinder body, freeing up airing-cupboard space and easing servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFast Reheat Across the Range\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eReheat time from 10°C to 60°C stays within a tight \u003cstrong\u003e26–40 minute band\u003c\/strong\u003e across the whole capacity range, so larger sizes don't mean a proportionally longer wait for hot water.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eTariff-Flexible Immersion Heating\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA \u003cstrong\u003esingle 3kW immersion\u003c\/strong\u003e gives back-up heating on the 90L–200L sizes, stepping up to \u003cstrong\u003e2 x 3kW\u003c\/strong\u003e on the 250L and 300L models to match the larger stored volume.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFactory-Set Safety Group\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003etemperature and pressure relief valve\u003c\/strong\u003e is factory-calibrated and tested before dispatch, removing a common on-site commissioning error and shortening installation time.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eImmersion\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eReheat (10°C–60°C)\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eStanding Heat Loss\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eFull Weight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e750mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e26 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.59 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e121kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e900mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e36 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.64 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e156kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1075mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e37 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.85 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e187kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e36 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.97 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e210kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e33 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.85 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e240kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e35 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2.00 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e301kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1750mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e40 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2.22 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e355kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eConnection Dimensions\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eA\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eB\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eC\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eD\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eE\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e401mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e497mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e551mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e401mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e497mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e671mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e401mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e497mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e876mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e451mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e601mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1026mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e451mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e601mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1231mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1311mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e193mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e223mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e553mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e843mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e973mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1293mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e193mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e223mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e553mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e843mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1253mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1543mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eEnergy Efficiency Class\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eMax Incoming Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e12 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm (standard on 200L+ only, see note above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder come with a secondary return connection?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNot as standard on the \u003cstrong\u003e90L–170L\u003c\/strong\u003e sizes – the 22mm secondary return connection is only fitted as standard from \u003cstrong\u003e200L upwards\u003c\/strong\u003e. Check this before specifying if a secondary return circuit is required on a smaller cylinder.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat heat source does this cylinder use?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eIt's designed to be heated \u003cstrong\u003eindirectly via a boiler coil\u003c\/strong\u003e connected to a gas or oil-fired boiler, with the immersion heater(s) providing independent electric back-up.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow many immersion heaters does each size have?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe \u003cstrong\u003e90L–200L\u003c\/strong\u003e models have a single \u003cstrong\u003e3kW immersion\u003c\/strong\u003e, while the \u003cstrong\u003e250L and 300L\u003c\/strong\u003e models have \u003cstrong\u003e2 x 3kW\u003c\/strong\u003e immersion heaters.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow fast does this cylinder reheat?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eReheat time from 10°C to 60°C ranges from \u003cstrong\u003e26 minutes on the 90L model\u003c\/strong\u003e to \u003cstrong\u003e40 minutes on the 300L model\u003c\/strong\u003e, based on the manufacturer's rated coil performance.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat's the difference between the actual and nominal capacity?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe nominal litre rating is a rounded figure; the \u003cstrong\u003eactual stored capacity\u003c\/strong\u003e is slightly lower once the coil and fittings are accounted for – for example, the “90L” model holds 89L, and the “300L” model holds 294L.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"90L","offer_id":65213807886685,"sku":"DUC2-IN-90L","price":570.0,"currency_code":"GBP","in_stock":true},{"title":"125L","offer_id":65213807919453,"sku":"DUC2-IN-120L","price":630.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65213807952221,"sku":"DUC2-IN-150L","price":650.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65213807984989,"sku":"DUC2-IN-170L","price":695.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65213808017757,"sku":"DUC2-IN-200L","price":720.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65213808050525,"sku":"DUC2-IN-250L","price":795.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65213808083293,"sku":"DUC2-IN-300L","price":870.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-standard-direct-unvented-cylinders-90l-300l","title":"JAB DUC 2 Standard Direct Unvented Cylinders (60L-300L)","description":"\u003c!-- SEO Product Name: JAB DUC 2 Standard Direct Unvented Cylinders (90L-300L) --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Direct\u003c\/strong\u003e is a standard-format unvented hot water cylinder for properties where \u003cstrong\u003eelectricity is the only available heat source\u003c\/strong\u003e, with no boiler coil to plan pipework around. Available in \u003cstrong\u003eseven capacities from 90L to 300L\u003c\/strong\u003e, it's built from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e, heated by twin or triple factory-fitted immersion heaters – including a \u003cstrong\u003esmart immersion\u003c\/strong\u003e on the 170L–300L sizes – with a remote-mounted expansion vessel.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e90–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e7\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSizes Available\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e2–3 x 3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eImmersion (By Size)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e53–175 min\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eReheat Time (10°C–60°C)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eRemote\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eExpansion Vessel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eNo boiler coil fitted:\u003c\/strong\u003e as a Direct model, the immersion heaters are the \u003cstrong\u003esole heat source\u003c\/strong\u003e – there is no indirect coil connection for a boiler. Immersion count and type vary by capacity (2 x 3kW on 90L–200L, 3 x 3kW on 250L–300L, with a smart immersion fitted on 170L–300L); confirm the exact configuration in the size table before ordering.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eSecondary return not standard on smaller sizes:\u003c\/strong\u003e the 22mm secondary return connection is \u003cstrong\u003enot supplied as standard on the 90L–170L\u003c\/strong\u003e models – it's only fitted as standard from \u003cstrong\u003e200L upwards\u003c\/strong\u003e. Confirm this against the project requirement before specifying a smaller cylinder for a system with a secondary return circuit.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the immersion heater(s), must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC 2 Direct\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eElectric-Only Heating\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003ePurpose-built for properties where \u003cstrong\u003eelectricity is the only available heat source\u003c\/strong\u003e, with twin or triple factory-fitted immersion heaters as the sole means of heating the stored water.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eSmart Immersion on Larger Sizes\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003e170L–300L\u003c\/strong\u003e models are fitted with a \u003cstrong\u003esmart immersion heater\u003c\/strong\u003e, giving more precise, programmable control over electric water heating than a standard thermostatic immersion.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe expansion vessel is supplied as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket rather than clamped to the cylinder body, freeing up airing-cupboard space and easing servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eTariff-Flexible Multi-Element Heating\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eTwin \u003cstrong\u003e3kW immersions\u003c\/strong\u003e on the 90L–200L sizes step up to \u003cstrong\u003etriple 3kW\u003c\/strong\u003e on the 250L and 300L models, allowing staged or multi-rate tariff heating strategies.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eDiameter\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eImmersion\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eReheat (10°C–60°C)\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eStanding Heat Loss\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eFull Weight\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e750mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e53 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.59 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e119kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e900mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e73 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.64 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e154kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1075mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e87 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.85 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e185kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1200mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW*\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e99 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.97 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e208kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e510mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2 x 3kW*\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e116 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1.85 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e238kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e3 x 3kW*\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e145 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2.00 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e299kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1750mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e3 x 3kW*\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e175 min\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e2.22 kWh\/24h\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e353kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e*Smart immersion heater fitted on the 170L, 200L, 250L, and 300L models.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eConnection Dimensions\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eA\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eB\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eC\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eD\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eE\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e90L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e421mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e551mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e125L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e421mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e671mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e150L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e621mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e876mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e170L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e621mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e–\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1026mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e171mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e201mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e721mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1221mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1321mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e193mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e223mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e643mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e973mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1293mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e193mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e223mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e643mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1253mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1543mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eDirect, unvented, duplex stainless-steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eEnergy Efficiency Class\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e3 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eMax Incoming Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e12 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm (standard on 200L+ only, see note above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need a boiler connection?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNo. This is a \u003cstrong\u003edirect\u003c\/strong\u003e cylinder – it has no boiler coil and is heated solely by its factory-fitted immersion heaters, making it suited to properties where electricity is the only available heat source.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder come with a secondary return connection?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eNot as standard on the \u003cstrong\u003e90L–170L\u003c\/strong\u003e sizes – the 22mm secondary return connection is only fitted as standard from \u003cstrong\u003e200L upwards\u003c\/strong\u003e. Check this before specifying if a secondary return circuit is required on a smaller cylinder.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow many immersion heaters does each size have?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe \u003cstrong\u003e90L–200L\u003c\/strong\u003e models have \u003cstrong\u003e2 x 3kW\u003c\/strong\u003e immersion heaters, while the \u003cstrong\u003e250L and 300L\u003c\/strong\u003e models step up to \u003cstrong\u003e3 x 3kW\u003c\/strong\u003e. The upper immersion on \u003cstrong\u003e170L–300L\u003c\/strong\u003e models is a smart, programmable unit.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow fast does this cylinder reheat?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eManufacturer-rated reheat time from 10°C to 60°C (based on two 3kW immersion elements) ranges from \u003cstrong\u003e53 minutes on the 90L model\u003c\/strong\u003e to \u003cstrong\u003e175 minutes on the 300L model\u003c\/strong\u003e; the 250L and 300L models' additional third element can improve on this when all elements run together.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat's the difference between the actual and nominal capacity?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe nominal litre rating is a rounded figure; the \u003cstrong\u003eactual stored capacity\u003c\/strong\u003e is slightly lower once fittings are accounted for – for example, the “90L” model holds 89L, and the “300L” model holds 294L.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"60L","offer_id":65214599659869,"sku":"DUC2-D-60L","price":470.0,"currency_code":"GBP","in_stock":true},{"title":"90L","offer_id":65214548115805,"sku":"DUC2-D-90L","price":490.0,"currency_code":"GBP","in_stock":true},{"title":"125L","offer_id":65214548148573,"sku":"DUC2-IN-120L","price":530.0,"currency_code":"GBP","in_stock":true},{"title":"150L","offer_id":65214548181341,"sku":"DUC2-D-150L","price":550.0,"currency_code":"GBP","in_stock":true},{"title":"170L","offer_id":65214548214109,"sku":"DUC2-D-170L","price":590.0,"currency_code":"GBP","in_stock":true},{"title":"200L","offer_id":65214548246877,"sku":"DUC2-D-200L","price":630.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65214548279645,"sku":"DUC2-D-250L","price":730.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65214548312413,"sku":"DUC2-D-300L","price":795.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"},{"product_id":"jab-duc-2-solar-twin-coil-indirect-unvented-cylinders-200l-300l","title":"JAB DUC 2 Solar Twin Coil Indirect Unvented Cylinders (200L-300L)","description":"\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; font-family:Arial, Helvetica, sans-serif; color:#333333;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.6; color:#333333; margin:0 0 24px 0;\"\u003eThe \u003cstrong\u003eJAB DUC 2 Solar Twin Coil Indirect\u003c\/strong\u003e is an unvented hot water cylinder built to run from \u003cstrong\u003etwo independent heat sources\u003c\/strong\u003e – a solar thermal array and a gas or oil boiler – through separate internal coils, with a factory-fitted \u003cstrong\u003eimmersion heater\u003c\/strong\u003e as electric back-up. Available in \u003cstrong\u003e200L, 250L, and 300L\u003c\/strong\u003e capacities, it's built from \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e with a remote-mounted expansion vessel.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e200–300L\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eCapacity Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e2\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eIndependent Heat Coils\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e580mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eDiameter (All Sizes)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e22mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eSecondary Return Fitted\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e7 bar \/ 90°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eT\u0026amp;P Relief Setting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#FFFFFF; text-align:center; padding:16px 8px; border-radius:8px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eRemote\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.9;\"\u003eExpansion Vessel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEA; border-left:4px solid #C62828; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eInstaller requirement:\u003c\/strong\u003e this is an unvented hot water cylinder and must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3. Solar thermal circuit connections should be made by an installer competent in solar thermal systems.\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B26A00; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eConnection port angles vary by size:\u003c\/strong\u003e JAB's technical drawing for this range shows the flow and return spigots fitted at specific angles that differ between the 170L, 200L–300L, and 400L–500L diameter tiers. Always check the current manufacturer installation diagram for the exact angles on the specific size being fitted before finalising pipework runs.\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border-left:4px solid #008377CF; padding:14px 18px; margin:18px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003eAll electrical connections, including the immersion heater, must be wired by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e; actual cable sizing should be calculated on site rather than assumed from generic figures.\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eWhy Choose the JAB DUC 2 Solar Twin Coil Indirect\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:20px 0;\"\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eTwin-Coil Design\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eTwo independent internal coils let the cylinder be heated from \u003cstrong\u003etwo separate sources\u003c\/strong\u003e – typically a \u003cstrong\u003esolar thermal array\u003c\/strong\u003e as the primary, low-carbon source and a \u003cstrong\u003egas or oil boiler\u003c\/strong\u003e as the secondary source – each with its own thermostat pocket for independent control.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eDuplex Stainless-Steel Shell\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003eduplex stainless-steel\u003c\/strong\u003e body resists pitting and stress corrosion far better than standard 304-grade tanks, giving reliable long-term performance in hard-water areas.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eSolar-Optimised Coil Placement\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003esolar coil sits lower in the cylinder\u003c\/strong\u003e than the boiler coil, taking advantage of thermal stratification so the solar array can contribute useful heat even at lower output, before the boiler coil tops up the upper section.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eIndependent Immersion Back-Up\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eA factory-fitted \u003cstrong\u003eimmersion heater\u003c\/strong\u003e gives an independent electric back-up route to hot water if both the solar and boiler heat sources are unavailable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eRemote Expansion Vessel\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe expansion vessel is supplied as a \u003cstrong\u003eseparate wall-mounted unit\u003c\/strong\u003e with its own bracket rather than clamped to the cylinder body, freeing up airing-cupboard space and easing servicing access.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:16px; flex:1; min-width:250px;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:8px; font-size:15px;\"\u003eFull Unvented Kit Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; line-height:1.55; color:#333333;\"\u003eThe \u003cstrong\u003ecomplete unvented kit\u003c\/strong\u003e ships with every cylinder, so the installer isn't left sourcing safety-group components separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eSizes \u0026amp; Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eDiameter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1120mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1330mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1650mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e580mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eConnection Dimensions\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:13px;\"\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eCapacity\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eA\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eB\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eC\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eD\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eE\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eF\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eG\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eH\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eI\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#FFFFFF; padding:9px 12px; font-size:13px; text-align:left;\"\u003eJ\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e200L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e190mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e245mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e390mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e545mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e585mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e780mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e890mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e890mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e930mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e250L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e190mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e245mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e390mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e640mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e890mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1025mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1025mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1140mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e300L\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e190mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e245mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e390mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e500mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e575mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e640mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e885mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1250mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1020mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; font-size:13px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1430mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eTechnical Specification\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:20px 0; font-size:14px;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConstruction\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCylinder Type\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eIndirect, unvented, duplex stainless-steel, twin-coil (solar + boiler)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"background:#008377CF; color:#FFFFFF; font-weight:700; padding:10px 14px; font-size:14px;\"\u003eConnections \u0026amp; Safety (All Sizes)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eHot Water Draw-Off\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eSecondary Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eBoiler Flow\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eBoiler Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eSolar Flow\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eSolar Return\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eCold Feed\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e22mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eThermostat Pockets\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e3 – one per coil, plus one for the immersion zone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eTemperature \u0026amp; Pressure Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003e1\/2″, factory-set 7 bar \/ 90°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eImmersion Heater\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFactory-fitted (back-up)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#FFFFFF;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eRemote-mounted, wall bracket supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7FBFA;\"\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB; width:55%;\"\u003eUnvented Kit\u003c\/td\u003e\n\u003ctd style=\"padding:9px 14px; font-size:14px; color:#333333; border-bottom:1px solid #E0EDEB;\"\u003eFull kit supplied\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; color:#008377CF; margin:32px 0 16px 0; padding-bottom:8px; border-bottom:2px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:20px 0;\"\u003e\n\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eHow does the twin-coil system work?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe \u003cstrong\u003elower coil connects to a solar thermal array\u003c\/strong\u003e, taking advantage of thermal stratification to draw useful heat even from moderate solar output, while the \u003cstrong\u003eupper coil connects to a gas or oil boiler\u003c\/strong\u003e to top up the rest of the cylinder. Each coil has its own thermostat pocket for independent control.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eWhat happens if there's no solar gain or boiler heat available?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eThe factory-fitted \u003cstrong\u003eimmersion heater\u003c\/strong\u003e provides independent electric back-up, so hot water is still available if both coils are temporarily out of use.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDo the connection ports have specific angles?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. JAB's technical drawing for this range shows the flow and return spigots fitted at specific angles that vary by cylinder diameter tier. Always check the manufacturer's current installation diagram for the exact port angles on the size being installed before finalising pipework.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder come with a secondary return connection?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes, a \u003cstrong\u003e22mm secondary return\u003c\/strong\u003e connection is included on this range, positioned near the top of the cylinder alongside the hot draw-off.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eDoes this cylinder need to be installed by a qualified installer?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eYes. As an unvented hot water cylinder it must be installed, commissioned, and notified to Building Control by a \u003cstrong\u003eG3-qualified (Benchmark) installer\u003c\/strong\u003e in line with Building Regulations Part G3.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"margin-bottom:10px; border:1px solid #E0EDEB; border-radius:6px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#FFFFFF; padding:12px 16px; font-weight:700; font-size:14px; cursor:pointer; list-style:none;\"\u003eCan this cylinder be used without a solar array connected?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:14px; line-height:1.6; color:#333333; background:#FFFFFF;\"\u003eIt can be run from the boiler coil and immersion alone, but the twin-coil design and pricing are aimed at installations that use both heat sources; if no solar array is planned, a single-coil JAB DUC 2 Indirect model may be a simpler fit.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"JAB","offers":[{"title":"200L","offer_id":65216859111773,"sku":"DUC2-SOL-200L","price":930.0,"currency_code":"GBP","in_stock":true},{"title":"250L","offer_id":65216859144541,"sku":"DUC2-SOL-250L","price":1050.0,"currency_code":"GBP","in_stock":true},{"title":"300L","offer_id":65216859177309,"sku":"DUC2-SOL-300L","price":1100.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/JABIndirecthi-floHighRecoveryunventedcylinder.jpg?v=1783617216"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/collections\/JAB.webp?v=1784113789","url":"https:\/\/qualityheating.co.uk\/collections\/jab.oembed","provider":"AIZO Quality Heating","version":"1.0","type":"link"}