Expansion Vessel SizeNot ApplicableIncludes Expansion VesselNoStanding Heat Loss kWh/24h1.75Number of Immersion Heaters1 (3 kW)Years Guaranteed25 Years (Cylinder); 2 Years (Parts)Width545mmTypeCylinders - Indirect UnventedPower kW3 kWMaximum Operating Pressure7MaterialDuplex Stainless SteelHeight1389mmEnergy Efficiency RatingBDiameter545mmDepth545mmConnection Size1/2" Temperature & Pressure Relief ValveCapacity250 LSupplier Part NumberESPTW0250Brand NameUK Cylinders