Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoNumber of Immersion Heaters1 (3 kW Incoloy Supplied as Standard; Upgrades Available e.g. Titanium or 6 kW)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width545mmTypeCylinders - Heat PumpPower kW3 kWMaterialDuplex Stainless SteelHeight1722mmEnergy Efficiency RatingCDiameter545mmDepth545mmConnection Size28 mm (Coil); 22 mm (Hot & Cold)ColourGreyCoil TypePrimary Coil (Large, High-Gain)Capacity250 LSupplier Part NumberESHPD3250Brand NameUK Cylinders