Expansion Vessel Size170 LIncludes Expansion VesselYesNumber of Immersion Heaters1 (Long-Life 3 kW Incoloy Supplied as Standard)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width545mmTypeCylinders - Buffer StoreToilet Cistern CapacityFTW--Solar CompatibleYesPower kW3 kWMaterialDuplex Stainless SteelHeight1389mmFuel TypeExternal Source (Boiler)Energy Efficiency RatingCDiameter545mmDepth545mmConnection Size28 mm (Coil); 22 mm (Hot & Cold)ColourSilverCoil TypePrimary coil (market-leading, highly efficient)Capacity170 LSupplier Part NumberESNBV0170Brand NameUK Cylinders