The Sealey IR37 Infrared Heater produces 125,000 Btu/hr on the high setting The Sealey IR37 is a 240V Infrared Heater with clean-burning, operating on paraffin, kerosene or diesel. The 53L Tank allows a maximum of 20hrs running time depending on setting, making this unit extremely economical. The IR37 complies with rigorous standards and is fitted with a safety cut-out. Features: Two heat settings Produces an impressive 125,000 Btu/hr on high setting Clean burning unit operates on paraffin, kerosene or diesel Infrared heater suitable for well ventilated indoor applications Complies with rigorous standards and is fitted with a safety cut-out 53L Tank allows a maximum of 20hrs running time dependant on setting, making this unit extremely economical Specification:  Output: 29/38kW  Supply: 240V - 5A  Tank Capacity: 60L Heated Area: 708m³  Heated Area: 25000ft³  Output: 95,000/125,000Btu/hr  Fuel Oil: Paraffin/Kerosene/Diesel  Running Time per Filling (approx): 16.5-22hrs