{"product_id":"telford-tempest-s-plan-pre-plumbed-cylinder-90-500l-tsmi-splan","title":"Telford Tempest 400L Pre-Plumbed S-Plan Cylinder | TSMI\/SPLAN","description":"\u003c!-- SEO Product Name: Telford Tempest 400L Pre-Plumbed S-Plan Cylinder | TSMI\/SPLAN --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; font-family:Arial, Helvetica, sans-serif; color:#333333; line-height:1.6;\"\u003e\n\n\u003cp style=\"margin:0 0 12px 0;\"\u003eThe \u003cstrong\u003eTelford Tempest Indirect S-Plan Pre-Plumbed Cylinder 400 litre\u003c\/strong\u003e is a \u003cstrong\u003emains-pressure unvented hot water cylinder\u003c\/strong\u003e supplied with the \u003cstrong\u003eS-Plan control components already plumbed and wired at the factory\u003c\/strong\u003e. Instead of building the cylinder pipework and zone controls on site, the installer connects the boiler flow and return, the cold feed, the hot draw-off and the heating circuit, then commissions the system. It suits \u003cstrong\u003enew build and replacement boiler-fed systems\u003c\/strong\u003e where a traditional S-Plan layout is specified and a large hot water store is needed.\u003c\/p\u003e\n\n\u003cp style=\"margin:0 0 12px 0;\"\u003eThe 400 litre cylinder is made from \u003cstrong\u003eduplex stainless steel\u003c\/strong\u003e with a \u003cstrong\u003ewhite steel casing\u003c\/strong\u003e and \u003cstrong\u003ehigh density insulation\u003c\/strong\u003e. The factory-fitted package includes \u003cstrong\u003etwo Honeywell 22mm 2-port valves\u003c\/strong\u003e (one for hot water, one for heating), a \u003cstrong\u003ewiring centre\u003c\/strong\u003e, a \u003cstrong\u003edual probe stat\u003c\/strong\u003e, an \u003cstrong\u003e8m head circulating pump\u003c\/strong\u003e, a \u003cstrong\u003e3kW Incoloy immersion heater\u003c\/strong\u003e, an \u003cstrong\u003eautomatic air vent\u003c\/strong\u003e, a \u003cstrong\u003e22mm inlet group\u003c\/strong\u003e and a \u003cstrong\u003e15-22mm tundish\u003c\/strong\u003e. It stands \u003cstrong\u003e1590mm high with a 660mm diameter\u003c\/strong\u003e, is \u003cstrong\u003eMade in Britain\u003c\/strong\u003e and is rated \u003cstrong\u003eErP Band C\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e400L\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eHot water capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e3kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eIncoloy immersion heater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003eErP C\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eEnergy rating\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e8m head\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eCirculating pump fitted\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e2 x 22mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eHoneywell 2-port valves\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; line-height:1.2;\"\u003e45 min\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px;\"\u003eReheat from cold\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"border-left:5px solid #C62828; background:#FDECEA; padding:12px 14px; margin:14px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eUnvented regulations:\u003c\/strong\u003e Unvented hot water storage must be installed, discharged and commissioned by a competent person in line with \u003cstrong\u003eBuilding Regulations Part G3\u003c\/strong\u003e. The tundish and discharge pipework must be installed to the installation manual. Unvented cylinders need an \u003cstrong\u003eannual service\u003c\/strong\u003e, and the lifetime cylinder guarantee is conditional on this.\u003c\/div\u003e\n\n\u003cdiv style=\"border-left:5px solid #E69500; background:#FFF4DC; padding:12px 14px; margin:14px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eHeat pump systems:\u003c\/strong\u003e This is the \u003cstrong\u003eboiler-fed indirect S-Plan version\u003c\/strong\u003e, with boiler flow and return connections. For air source or ground source heat pump installations, Telford makes dedicated \u003cstrong\u003eTempest heat pump cylinders\u003c\/strong\u003e with a purpose-designed, large-surface-area coil. Please ask us if you are unsure which model suits your system.\u003c\/div\u003e\n\n\u003cdiv style=\"border-left:5px solid #008377CF; background:#E6F2F1; padding:12px 14px; margin:14px 0; border-radius:4px; font-size:15px; line-height:1.55; color:#333333;\"\u003e\n\u003cstrong\u003eSupplied loose:\u003c\/strong\u003e \u003cstrong\u003e1 x room stat\u003c\/strong\u003e, \u003cstrong\u003e1 x 7-day 2-channel programmer\u003c\/strong\u003e, \u003cstrong\u003e1 x potable expansion vessel to suit\u003c\/strong\u003e the cylinder and \u003cstrong\u003e1 x installation manual\u003c\/strong\u003e. The expansion vessel is not fitted to the cylinder, so allow space and a mounting position for it.\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:20px; color:#008377CF; margin:26px 0 10px 0; padding-bottom:6px; border-bottom:2px solid #008377CF; font-weight:700;\"\u003eKey features\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin-bottom:10px;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eFactory pre-plumbed S-Plan\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003eThe \u003cstrong\u003eS-Plan pipework and controls come assembled\u003c\/strong\u003e on the cylinder, which cuts first-fix time and reduces the risk of on-site plumbing and wiring errors.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eHoneywell 2-port valves\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003e\n\u003cstrong\u003eTwo 22mm Honeywell 2-port valves\u003c\/strong\u003e are factory-fitted, one for \u003cstrong\u003ehot water\u003c\/strong\u003e and one for \u003cstrong\u003ehot heating\u003c\/strong\u003e, giving independent zone control from one programmer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003ePump and wiring centre\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003eAn \u003cstrong\u003e8m head circulating pump\u003c\/strong\u003e and a \u003cstrong\u003ewiring centre\u003c\/strong\u003e are pre-installed, so the electrical connections are gathered in one place for a tidy installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eComplete unvented safety kit\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003e\n\u003cstrong\u003e22mm inlet group (3 bar reducing, 6 bar relief)\u003c\/strong\u003e, \u003cstrong\u003e1\/2 inch 7 bar T\u0026amp;P relief valve\u003c\/strong\u003e, \u003cstrong\u003edual probe stat\u003c\/strong\u003e and \u003cstrong\u003e15-22mm tundish\u003c\/strong\u003e are all included.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eDuplex stainless steel\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003eThe cylinder is made from \u003cstrong\u003eduplex stainless steel\u003c\/strong\u003e and treated against corrosion, with a \u003cstrong\u003elifetime guarantee on the cylinder\u003c\/strong\u003e and \u003cstrong\u003e2 years on components\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:4px solid #008377CF; border-radius:8px; padding:14px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-size:16px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eFast reheat, low heat loss\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.5; color:#333333;\"\u003e\n\u003cstrong\u003eReheat from cold in 45 minutes\u003c\/strong\u003e and \u003cstrong\u003efrom 70% draw-off in 35 minutes\u003c\/strong\u003e, with a \u003cstrong\u003estanding heat loss of 2.58 kWh\/24hrs\u003c\/strong\u003e thanks to high density insulation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:20px; color:#008377CF; margin:26px 0 10px 0; padding-bottom:6px; border-bottom:2px solid #008377CF; font-weight:700;\"\u003eTechnical specification\u003c\/h3\u003e\n\u003cdiv style=\"border:1px solid #008377CF; border-radius:6px; overflow:hidden; margin-bottom:10px;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; padding:9px 12px; font-weight:700; font-size:15px;\"\u003eSize and performance\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e400 litres\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e1590mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e660mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eReheat from cold\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e45 minutes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eReheat from 70% draw-off\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e35 minutes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eStanding heat loss\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e2.58 kWh\/24hrs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eEnergy rating\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eErP Band C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eImmersion rating\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e3kW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; padding:9px 12px; font-weight:700; font-size:15px;\"\u003eFactory-fitted components\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eValves\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e2 x Honeywell 22mm 2-port valves (hot water and heating)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eCirculating pump\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e8m head\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eControls\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eWiring centre and dual probe stat\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eImmersion heater\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e3kW Incoloy\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eUnvented safety\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e22mm inlet group (3 bar reducing \/ 6 bar relief), 1\/2 inch 7 bar T\u0026amp;P relief valve, 15-22mm tundish\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eOther fittings\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eAutomatic air vent and drain cock\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; padding:9px 12px; font-weight:700; font-size:15px;\"\u003eConnections\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eBoiler flow and return\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e22mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eCold feed\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e22mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eHot draw-off\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e22mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eSecondary return\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e22mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; padding:9px 12px; font-weight:700; font-size:15px;\"\u003eSupplied loose\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eControls\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e1 x room stat, 1 x 7-day 2-channel programmer\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eExpansion vessel\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e1 x potable expansion vessel to suit\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eDocumentation\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003e1 x installation manual\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; padding:9px 12px; font-weight:700; font-size:15px;\"\u003eConstruction and warranty\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eCylinder material\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eDuplex stainless steel, white steel casing\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eInsulation\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eHigh density insulation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eApprovals\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eWRAS approved\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eGuarantee\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eLifetime on cylinder (annual service required), 2 years on components\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#E6F2F1; border-bottom:1px solid #d5e4e2;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; padding:9px 12px; font-size:14px;\"\u003e\u003cstrong\u003eManufacture\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; padding:9px 12px; font-size:14px;\"\u003eMade in Britain\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"font-size:20px; color:#008377CF; margin:26px 0 10px 0; padding-bottom:6px; border-bottom:2px solid #008377CF; font-weight:700;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eWhat does the S-Plan pre-plumb include?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eThe cylinder arrives with \u003cstrong\u003etwo Honeywell 22mm 2-port valves\u003c\/strong\u003e, a \u003cstrong\u003ewiring centre\u003c\/strong\u003e, a \u003cstrong\u003edual probe stat\u003c\/strong\u003e, an \u003cstrong\u003e8m head circulating pump\u003c\/strong\u003e, a \u003cstrong\u003e3kW Incoloy immersion heater\u003c\/strong\u003e, an \u003cstrong\u003eautomatic air vent\u003c\/strong\u003e, a \u003cstrong\u003e22mm inlet group\u003c\/strong\u003e, a \u003cstrong\u003e15-22mm tundish\u003c\/strong\u003e and a \u003cstrong\u003edrain cock\u003c\/strong\u003e, all pre-plumbed and pre-wired.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eWhat is supplied in the box but not fitted?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eA \u003cstrong\u003eroom stat\u003c\/strong\u003e, a \u003cstrong\u003e7-day 2-channel programmer\u003c\/strong\u003e, a \u003cstrong\u003epotable expansion vessel\u003c\/strong\u003e sized to suit the cylinder and the \u003cstrong\u003einstallation manual\u003c\/strong\u003e are supplied loose and need to be fitted on site.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eWhat are the dimensions of the 400 litre cylinder?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eIt is \u003cstrong\u003e1590mm high with a 660mm diameter\u003c\/strong\u003e. Allow extra clearance for the loose expansion vessel and for access to the pump, valves and wiring centre.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eHow quickly does it reheat?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eThe datasheet gives \u003cstrong\u003e45 minutes to reheat from cold\u003c\/strong\u003e and \u003cstrong\u003e35 minutes to reheat from 70% draw-off\u003c\/strong\u003e, using the \u003cstrong\u003e3kW immersion heater\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eIs it suitable for a heat pump?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eThis version is designed for \u003cstrong\u003eboiler-fed S-Plan systems\u003c\/strong\u003e. For a heat pump, choose a Tempest \u003cstrong\u003eheat pump cylinder\u003c\/strong\u003e, which has a purpose-designed coil for renewable heat sources. Contact us if you need help choosing.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:11px 14px; font-weight:700; cursor:pointer; font-size:15px;\"\u003eWho can install it and what is the warranty?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 14px; font-size:15px; line-height:1.55; color:#333333;\"\u003eUnvented hot water storage must be installed and commissioned by a \u003cstrong\u003ecompetent person\u003c\/strong\u003e under \u003cstrong\u003eBuilding Regulations Part G3\u003c\/strong\u003e. Telford provides a \u003cstrong\u003elifetime guarantee on the cylinder\u003c\/strong\u003e when it is serviced annually and \u003cstrong\u003e2 years on components\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Telford","offers":[{"title":"Default Title","offer_id":67627678531974,"sku":"TSMI-400-SPLAN","price":2300.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/TelfordTempestS-PlanPre-PlumbedCylinder400LTSMI-SPLAN.jpg?v=1792059239","url":"https:\/\/qualityheating.co.uk\/products\/telford-tempest-s-plan-pre-plumbed-cylinder-90-500l-tsmi-splan","provider":"AIZO Quality Heating","version":"1.0","type":"link"}