Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoNumber of Immersion Heaters1 (3 kW Incoloy Supplied as Standard; Upgrade Available to 6 kW or Titanium)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width475mmTypeCylinders - Indirect UnventedSolar CompatibleYesPower kW3 kWMaterialDuplex Stainless SteelHeight747mmFuel TypeElectricDepth475mmConnection Size22 mm Compression (Complete With Nuts And Olives)ColourSilver Casing (100% Recyclable)Coil TypePrimary Coil (Highly Efficient)Capacity90 LSupplier Part NumberESIND0090Brand NameUK Cylinders