This Draper Jet Force Infrared Diesel Space Heater provides approximately 15hrs continuous use  This powerful infrared heater is suitable for well-ventilated spaces. It is manufactured with upper and lower heat deflectors, automatic ignition, and a photocell safety device with heat protection. With its extremely economical and low noise, the clean-burning unit has a 40L fuel tank providing approximately 15hrs continuous use. Features: Manufactured with upper and lower heat deflectors, automatic ignition, and photocell safety device with heat protection Extremely economical and low noise Clean burning and has a 40L fuel tank that provides approx 15hrs continuous use Specification: Max. heat output: 124,000 BTU (34kW) Motor: 59W Max. fuel consumption: 2.6L/h Tank Capacity: 40L Dimensions: 630 x 730 x 860mm Weight (approx): 42kg