{"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","url":"https:\/\/qualityheating.co.uk\/products\/jab-duc-2-standard-indirect-unvented-cylinders-90l-300l","provider":"AIZO Quality Heating","version":"1.0","type":"link"}