{"product_id":"oso-slimline-hp-150sl-150-litre-heat-pump-unvented-cylinder","title":"OSO Slimline HP 150SL 150 Litre Heat Pump Unvented Cylinder","description":"\u003cdiv style=\"font-size: 16px; max-width: 900px; margin: 0 auto; font-family: Arial, Helvetica, sans-serif; color: #333; line-height: 1.7;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.8; color: #333;\"\u003eThe \u003cb\u003eOSO Slimline HP 150SL\u003c\/b\u003e is a \u003cb\u003e150 litre indirect unvented heat pump cylinder\u003c\/b\u003e with an ultra-compact \u003cb\u003e435 mm diameter\u003c\/b\u003e, making it the slimmest domestic heat pump cylinder available in the UK. Designed specifically for \u003cb\u003elow-temperature renewable heating systems\u003c\/b\u003e, it features a large \u003cb\u003e1.8 m² smooth scale-resistant coil\u003c\/b\u003e optimised for efficient heat transfer from \u003cb\u003eair source and ground source heat pumps\u003c\/b\u003e. The cylinder is built from \u003cb\u003eEVERLAST™ titanium-alloyed stainless steel\u003c\/b\u003e with \u003cb\u003eULTRAWELD™\u003c\/b\u003e construction and insulated with \u003cb\u003eNANOPUR foam\u003c\/b\u003e combined with \u003cb\u003eVacuum Insulation Panels (VIP)\u003c\/b\u003e for minimal standing heat loss. A factory-fitted \u003cb\u003e2.8 kW INCOTEC™ immersion heater\u003c\/b\u003e provides backup boosting capability. The HP 150SL is compatible with \u003cb\u003e3-port diverter, S-plan, and Y-plan systems\u003c\/b\u003e, and includes a \u003cb\u003e3-port motorised diverter valve\u003c\/b\u003e, \u003cb\u003e12 litre expansion vessel\u003c\/b\u003e, and full \u003cb\u003eG3 kit\u003c\/b\u003e as standard. Backed by OSO's \u003cb\u003e25-year warranty\u003c\/b\u003e on the stainless steel tank.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e150 L\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003eNominal Capacity\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e435 mm\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003eDiameter\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e1.8 m²\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003ePrimary Coil Area\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e76 W\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003eStanding Heat Loss\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e17 min\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003eRecovery at 70%\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 140px; background: #008377CF; color: #fff; border-radius: 10px; padding: 16px 10px; text-align: center; min-width: 130px;\"\u003e\n\u003cdiv style=\"font-size: 22px; font-weight: bold;\"\u003e25 Years\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; margin-top: 4px; opacity: 0.92;\"\u003eTank Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #D32F2F; background: #FFF3F3; padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 14px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #d32f2f; margin-bottom: 4px;\"\u003e🔴 Building Regulation G3 – Unvented Cylinder Installation\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #333; line-height: 1.6;\"\u003eThis unvented hot water cylinder must be installed by a \u003cb\u003ecompetent person\u003c\/b\u003e holding a current \u003cb\u003eG3 unvented hot water storage qualification\u003c\/b\u003e, in full compliance with Building Regulation G3, EN 12897:2016, and all current legislation in force at the date of installation. The discharge pipework must be routed to a safe, visible position with continuous fall to drain. This product is approved to building and water regulations by \u003cb\u003eKIWA Watertec Ltd\u003c\/b\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #F9A825; background: #FFFDE7; padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 14px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #f9a825; margin-bottom: 4px;\"\u003e🟡 Immersion Heater – Backup Use Only\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #333; line-height: 1.6;\"\u003eThe immersion heater is intended for \u003cb\u003ebackup and supplementary use only\u003c\/b\u003e. OSO explicitly states that using the immersion heater as the sole heat source should be avoided, as it would lead to \u003cb\u003ehigher energy consumption and higher operating costs\u003c\/b\u003e. The cylinder is designed to be connected to a high-efficiency external energy source such as a heat pump or boiler.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #F9A825; background: #FFFDE7; padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 14px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #f9a825; margin-bottom: 4px;\"\u003e🟡 Primary Flow Direction – Heat Pump vs Boiler\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #333; line-height: 1.6;\"\u003eThe primary coil flow direction differs depending on the heat source. When connected to a \u003cb\u003eheat pump\u003c\/b\u003e, the flow direction is \u003cb\u003etop to bottom\u003c\/b\u003e. When connected to a \u003cb\u003eboiler\u003c\/b\u003e, the flow direction is \u003cb\u003ebottom to top\u003c\/b\u003e. Ensure the primary pipework is connected to the correct flow and return positions for your system type.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #008377CF; background: #E6F4F2; padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 14px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003e🟢 Ultra-Compact 435 mm Diameter – Fits Where Others Cannot\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #333; line-height: 1.6;\"\u003eAt just \u003cb\u003e435 mm wide\u003c\/b\u003e, the Slimline HP is designed for tight installation spaces such as \u003cb\u003eairing cupboards, utility rooms, and kitchen cabinets\u003c\/b\u003e where a standard 595 mm diameter cylinder would not fit. Despite its slim profile, the 1.8 m² coil and 137 litre actual volume deliver strong hot water performance with \u003cb\u003ehigh flow rates\u003c\/b\u003e suitable for mains-pressure showers and multiple outlets.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 5px solid #008377CF; background: #E6F4F2; padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 14px 0;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 4px;\"\u003e🟢 3-Port Motorised Diverter Valve Included\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #333; line-height: 1.6;\"\u003eUnlike many cylinders that supply a 2-port zone valve, the Slimline HP includes a \u003cb\u003e3-port motorised diverter valve\u003c\/b\u003e as standard, enabling direct use with \u003cb\u003e3-port diverter system wiring\u003c\/b\u003e. The cylinder is also compatible with \u003cb\u003eS-plan\u003c\/b\u003e (using the supplied 3-port valve plus a separate zone valve for heating) and \u003cb\u003eY-plan\u003c\/b\u003e (using the supplied 3-port valve plus a separate mid-position valve) configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 28px 0 12px; padding-bottom: 6px; border-bottom: 3px solid #008377CF;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 14px; margin: 22px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eHeat Pump Optimised 1.8 m² Coil\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eThe large \u003cb\u003e1.8 m² smooth tube heat exchanger\u003c\/b\u003e is purpose-built for the lower flow temperatures of modern heat pump systems. With a \u003cb\u003e70% recovery time of just 17 minutes\u003c\/b\u003e at a primary flow rate of 15 l\/min at 80°C, the coil delivers fast reheat despite the compact cylinder diameter. The smooth coil design resists limescale build-up, maintaining efficiency over the long term.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eVIP + NANOPUR Insulation System\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eOSO's dual-layer insulation combines \u003cb\u003eVacuum Insulation Panels\u003c\/b\u003e with \u003cb\u003eNANOPUR high-performance foam\u003c\/b\u003e to minimise standing heat loss. The cylinder achieves a \u003cb\u003estanding heat loss of 76 W\u003c\/b\u003e (1.82 kWh\/day per EN 12897), keeping stored water hotter for longer and reducing the frequency of heat pump reheat cycles — improving overall system efficiency.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eINCOTEC™ Backup Immersion Heater\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eThe factory-fitted \u003cb\u003e2.8 kW INCOTEC™ immersion heater\u003c\/b\u003e uses ultra-high-grade \u003cb\u003eIncoloy 825 stainless steel\u003c\/b\u003e elements with DZR brass fittings and zinc-free soldering for maximum durability in hard water. Positioned for supplementary boosting, it provides a reliable backup when the primary heat source is temporarily unavailable or additional capacity is needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eSlimmest Domestic Heat Pump Cylinder\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eAt \u003cb\u003e435 mm diameter × 1666 mm height\u003c\/b\u003e, the HP 150SL occupies a footprint approximately \u003cb\u003e27% smaller\u003c\/b\u003e than a standard 595 mm cylinder. This makes it suitable for retrofit projects where space is constrained, properties with narrow airing cupboards, or installations where the cylinder needs to fit alongside other equipment.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eComplete G3 Kit with 3-Port Diverter Valve\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eThe HP 150SL ships with a comprehensive \u003cb\u003eG3 accessory kit\u003c\/b\u003e including a \u003cb\u003emultibloc valve\u003c\/b\u003e (3 bar PRV with line strainer, balanced cold take-off, check valve, and 6 bar expansion relief), \u003cb\u003etundish\u003c\/b\u003e, \u003cb\u003edrain cock\u003c\/b\u003e, \u003cb\u003e3-port motorised diverter valve\u003c\/b\u003e, \u003cb\u003e12 litre expansion vessel\u003c\/b\u003e with wall bracket, and \u003cb\u003estainless steel stability bracket\u003c\/b\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 260px; background: #f7f7f7; border-radius: 10px; padding: 18px 16px; border-top: 4px solid #008377CF;\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #008377cf; margin-bottom: 6px; font-size: 15px;\"\u003eEVERLAST™ 25-Year Tank Construction\u003c\/div\u003e\n\u003cdiv style=\"font-size: 14px; color: #444; line-height: 1.6;\"\u003eThe \u003cb\u003eEVERLAST™ titanium-alloyed stainless steel\u003c\/b\u003e tank with \u003cb\u003eULTRAWELD™\u003c\/b\u003e welded seams and advanced passivation provides class-leading corrosion resistance. OSO stainless cylinders are over \u003cb\u003e40% lighter\u003c\/b\u003e than enamelled equivalents. The \u003cb\u003e25-year warranty\u003c\/b\u003e on the tank reflects OSO's confidence in their Norwegian manufacturing quality, backed by ISO 9001, ISO 14001, and ISO 45001 certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 20px; font-weight: bold; color: #008377cf; margin: 28px 0 12px; padding-bottom: 6px; border-bottom: 3px solid #008377CF;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 22px 0; border-radius: 8px; overflow: hidden; border: 1px solid #ddd;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eProduct Identification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eOSO Hotwater AS (Norway)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eSlimline HP 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMPN\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e11014614\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eProduct Code (ErP)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eSlimline HP 150 – 3 kW \/ 1×240V + HX 1.8 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eEAN \/ Barcode\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eNot publicly listed — contact OSO UK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eCapacity \u0026amp; Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eNominal Capacity\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e150 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eActual \/ Storage Volume\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e137 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eDiameter (ø)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e435 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eHeight (H)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e1666 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eWeight (Empty)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e43 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eWeight (Full)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e180 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eThermal Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eErP Energy Rating\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eInsulation Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eNANOPUR foam + Vacuum Insulation Panels (VIP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eStanding Heat Loss (EN 12897)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e76 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eHeat Loss per 24 Hours\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e1.82 kWh\/day\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eRecovery Rate at 70%\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e17 minutes (at 15 l\/min primary, 80°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003ePrimary Heating (Coil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePrimary Coil Surface Area\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e1.8 m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCoil Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eSmooth, scale-resistant tube heat exchanger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePrimary Flow Rate (Test)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e15 l\/min at 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePrimary Flow Direction (Heat Pump)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eTop to bottom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePrimary Flow Direction (Boiler)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eBottom to top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePrimary Connections\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e3\/4\" BSP female (flow \u0026amp; return)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMax Primary Flow Temperature\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e82°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCoil Pressure Drop at 0.15 L\/s\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e50 mbar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCoil Operating Pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e2.5 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eImmersion Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eImmersion Power\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e2.8 kW (1-phase, 240 V) — backup use only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eElement Type\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eINCOTEC™ (Incoloy 825, scale-resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eImmersion Thermostat Range\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eAdjustable 40 – 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eBoiler \/ Cylinder Thermostat Range\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eAdjustable 50 – 75°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eSafety Cut-Out\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e85°C ± 3°C (manual reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePart Number (Immersion)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e71214\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003ePressure \u0026amp; Water Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMax Design Pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e6 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCold Water Operating Pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e3 bar (via multibloc PRV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMax Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e12 bar (PRV required above 12 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMinimum Supply Pressure\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e2.5 bar (recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eRecommended Flow Rate\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e20 litres\/min at 1 bar dynamic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eT\u0026amp;P Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e7 bar \/ 90 – 95°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eExpansion Relief Valve\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e6 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eExpansion Vessel\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e12 litre (3 bar pre-charge, with wall bracket)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eControls \u0026amp; System Compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eMotorised Valve (Supplied)\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e3-port diverter valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e3-port diverter, S-plan, and Y-plan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eJunction Box Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eHoneywell 10-way (42002116-001)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eSensor Pockets\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e2 × sensor clamp brackets (factory fitted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eStability Bracket\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eStainless steel (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background: #008377CF; color: #fff; font-weight: bold; padding: 10px 14px; font-size: 14px; border-radius: 4px;\" colspan=\"2\"\u003eConstruction \u0026amp; Compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eTank Material\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eEVERLAST™ titanium-alloyed 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: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eWelding System\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eULTRAWELD™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003ePressure Vessel Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eEN 12897:2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eSafety Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eEN 60335-2-21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eWelding Standard\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eISO 3834-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eUKCA marked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eApproval Body\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eKIWA Watertec Ltd\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eDirectives\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eLVD 2014\/35\/EU, EMC 2014\/30\/EU, PED 2014\/68\/EU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eTank Warranty\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003e25 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee; width: 50%;\"\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd style=\"padding: 9px 14px; font-size: 14px; color: #333; border-bottom: 1px solid #eee;\"\u003eNorway\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: 28px 0 12px; padding-bottom: 6px; border-bottom: 3px solid #008377CF;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin: 22px 0;\"\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eWill this cylinder fit in a standard airing cupboard?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eThe Slimline HP 150SL has an ultra-compact \u003cb\u003e435 mm diameter\u003c\/b\u003e (approximately 17 inches), making it significantly narrower than standard cylinders which are typically 580–595 mm wide. At \u003cb\u003e1666 mm tall\u003c\/b\u003e, it will fit in most standard airing cupboards. Always verify the available space including clearance requirements: \u003cb\u003e400 mm in front\u003c\/b\u003e of the electrical junction box covers and \u003cb\u003e150 mm above\u003c\/b\u003e the highest point.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eWhat heat pumps is the HP 150SL compatible with?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eThe cylinder is compatible with all thermostatically controlled \u003cb\u003eair source heat pumps (ASHP)\u003c\/b\u003e and \u003cb\u003eground source heat pumps (GSHP)\u003c\/b\u003e. The 1.8 m² coil is optimised for low-temperature heat transfer. Two \u003cb\u003esensor clamp brackets\u003c\/b\u003e are factory fitted to accept 6 mm or 8 mm temperature sensors from the heat pump controller. The cylinder can also be connected to \u003cb\u003egas or oil boilers\u003c\/b\u003e for faster recovery.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eWhy is the ErP rating C rather than A?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eThe ErP rating for indirect cylinders is based on \u003cb\u003estanding heat loss\u003c\/b\u003e relative to volume. The HP 150SL's slim 435 mm diameter gives it a higher surface-area-to-volume ratio than wider cylinders of the same capacity, which results in proportionally higher standing losses (76 W). The VIP + NANOPUR insulation still delivers \u003cb\u003eclass-leading thermal performance for a slimline cylinder\u003c\/b\u003e — the ErP C rating reflects the physical geometry rather than insulation quality.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eWhat is included in the box?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eThe HP 150SL is supplied with: a \u003cb\u003emultibloc valve\u003c\/b\u003e (3 bar PRV with line strainer, balanced cold take-off, check valve, and 6 bar expansion relief), \u003cb\u003etundish\u003c\/b\u003e with screws, \u003cb\u003e1\/4\" drain cock\u003c\/b\u003e, \u003cb\u003e3-port motorised diverter valve\u003c\/b\u003e, \u003cb\u003e12 litre expansion vessel\u003c\/b\u003e with wall bracket, \u003cb\u003estainless steel stability bracket\u003c\/b\u003e, plastic cable clamp, and installation manual with service logbook. The immersion heater, thermostats, T\u0026amp;P relief valve, and sensor clamp brackets are factory fitted.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eCan I use this with an S-plan or Y-plan system?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eYes. While the cylinder is supplied with a \u003cb\u003e3-port motorised diverter valve\u003c\/b\u003e for direct 3-port wiring, it is also fully compatible with \u003cb\u003eS-plan\u003c\/b\u003e and \u003cb\u003eY-plan\u003c\/b\u003e configurations. For S-plan, you will need an additional \u003cb\u003e2-port zone valve\u003c\/b\u003e (e.g. Honeywell V4043H) for the heating circuit, which is not included. For Y-plan, you will need a \u003cb\u003emid-position valve\u003c\/b\u003e (e.g. Honeywell V4073A1039), also not included.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 8px; border: 1px solid #ddd; border-radius: 8px; overflow: hidden;\"\u003e\n\u003csummary style=\"background: #008377CF; color: #fff; padding: 12px 16px; font-weight: 600; font-size: 15px; cursor: pointer;\"\u003eIs this cylinder suitable for use with solid fuel or wood-burning stoves?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 14px 16px; font-size: 14px; color: #333; line-height: 1.7;\"\u003eNo. OSO Slimline HP cylinders are \u003cb\u003enot suitable\u003c\/b\u003e for use with non-thermostatically controlled heat sources such as solid fuel stoves, wood-burning stoves, or any other heat source that cannot be thermostatically regulated. The cylinder must be connected to a \u003cb\u003ethermostatically controlled heat pump, gas boiler, or oil boiler\u003c\/b\u003e to comply with unvented cylinder safety regulations.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"OSO Hotwater","offers":[{"title":"Default Title","offer_id":65270616719709,"sku":"11014614","price":1530.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/OSOSlimlineHP150SL150LitreHeatPumpUnventedCylinder.jpg?v=1784207736","url":"https:\/\/qualityheating.co.uk\/products\/oso-slimline-hp-150sl-150-litre-heat-pump-unvented-cylinder","provider":"AIZO Quality Heating","version":"1.0","type":"link"}