Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoStanding Heat Loss kWh/24h1.22Number of Immersion Heaters1 (3 kW Incoloy Supplied as Standard)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width545mmTypeCylinders - Heat PumpSolar CompatibleYesPower kW3 kWMaximum Operating Pressure7MaterialDuplex Stainless SteelHeight1100mmFuel TypeExternal Source (Heat Pump)Energy Efficiency RatingBDiameter545mmDepth545mmConnection Size28 mm (Coil); 22 mm (Hot/Cold); 1/2" Temperature & Pressure Relief ValveColourSilverCoil TypePrimary Large-Diameter Corrugated Single CoilCapacity150 LSupplier Part NumberESHPP2150XBrand NameUK Cylinders