Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoNumber of Immersion Heaters1 (Long-Life 3 kW Incoloy Supplied as Standard; Upgrade Options Available: Titanium or 6 kW)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width545mmTypeCylinders - Heat PumpPower kW3 kWMaterialDuplex Stainless SteelHeight1945mmFuel TypeExternal Source (Boiler)Energy Efficiency RatingCDiameter545mmDepth545mmConnection Size22 mm Hot & Cold Water ConnectionsColourSilver CasingCoil TypePrimary coil (market-leading, highly efficient)Capacity300 LSupplier Part NumberESHPD3300Brand NameUK Cylinders