Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoNumber of Immersion Heaters1 (Long-Life 3 kW Incoloy Supplied as Standard; Upgrades Available)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width475mmTypeCylinders - Heat PumpPower kW3 kWMaterialDuplex Stainless SteelHeight1680mmEnergy Efficiency RatingCDiameter475mmDepth475mmConnection Size28 mm Coil Connections; 22 mm Hot & Cold Water ConnectionsColourSilver CasingCoil TypePrimary Coil (Highly Efficient)Capacity170 LSupplier Part NumberESHPS3170Brand NameUK Cylinders