The Jet3 Over Door Heater from Thermoscreens is specifically designed for use over doorways at a maximum height of 2.3metres. It offers a full heat or half heat setting and is bracket mounted to enable angular adjustment of the heat flow. Techincal Information Power Supply: 240V Heat Output (kW): 1/5 - 3 Electrical Input (W): 3030 Maxmum Velocity (Metres per second): 6.0 Maximum Air Volume (Cubic metres per hour): 200 Weight: 4.5kgs Sound Level (dB(A) @ 3m): 46.5 Length: 120mm Depth: 120mm Height: 201mm