Expansion Vessel SizeNot Applicable Includes Expansion VesselNoERP (Energy Efficiency)NNumber of Immersion Heaters1 x 3 kWYears GuaranteedLifetime (Internal Cylinder, 25 Years); 2 Years (Components/Parts)Width580mmUsageDesigned For Use With An Air Or Ground Source Heat Pump (Indirect)TypeCylinders - Indirect UnventedSolar CompatibleNoPower kW3 kWMaximum Operating Pressure3MaterialStainless SteelHeight1120mmFuel TypeExternal Source (Heat Pump)Depth580mmConnection Size22 mm Compression FittingsColourStainless SteelCoil TypePurpose-Designed Coil, 3.3m2Capacity200 LSupplier Part NumberTSMI200/HP/PPRange DescriptionTempestManufacturer Model NoTSMI200/HP/PPBrand NameTelford