Heat output: 720W, All radiator outputs are calculated in line with the European EN442 Testing Standard Delta t 50, Maximum Bar Pressure: 9, Minimum Operating Temperature: 30 °C, Maximum Operating Temperature: 120 °C, Wall to pipe center: 41mm. Pipe center dimension: 50mm. Depth of the radiator when fitted: 88mm, 50 mm 1/2" middle connection, Steel construction with a high quality pretreatment & powder-coating finish, Wall fixings, plug & vent included