{"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","url":"https:\/\/qualityheating.co.uk\/products\/jab-duc-ie-direct-unvented-cylinders-90l-300l","provider":"AIZO Quality Heating","version":"1.0","type":"link"}