Category NameHeat Pump CylindersExpansion Vessel SizeNot ApplicableIncludes Expansion VesselNoERP (Energy Efficiency)YNumber of Immersion Heaters1Years Guaranteed25 Year Material Guarantee On Cylinder Shell (Subject To Manufacturer's Terms And Conditions)Width478mmUsageSuitable for Oil and Gas Boilers, Air Source Heat Pumps and Solar Thermal SystemsTypeCylinders - Indirect UnventedTank Capacity174Solar CompatibleCompatible With Solar Thermal SystemsPower kW3 kWMaximum Operating Pressure3MaterialStainless SteelHeight1708mmEnergy Efficiency RatingCERP RatingCDepth478mmConnection Size22 mm CompressionColourGreyCold or Hot WaterHotCoil TypeSingle Coil (Large Stainless Steel Internal Coil)Capacity180 LSupplier Part NumberQRSC180SLRange DescriptionQR CylindersManufacturer Model NoQRSC180SLBrand NameGrant