{"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","url":"https:\/\/qualityheating.co.uk\/products\/jab-duc-2-indirect-hi-flo-250l-unvented-cylinder","provider":"AIZO Quality Heating","version":"1.0","type":"link"}