The Dyna-Glo Delux 400K BTU Forced Air Kerosene Portable Heater provides immediate relief from cold weather working conditions. It's ideal for residential, commercial and industrial (including construction site) applications. All Dyna-Glo Delux Kerosene Forced Air Heaters are CSA certified for multi-fuel use with these fuel types: K1 Kerosene, Diesel #1, Diesel #2, Fuel Oil #1, Fuel Oil #2, Jet A and JP-8. However, K1 Kerosene is the manufacturers recommended fuel for optimal, cleaner burns and long lasting product life. Included is a digital self-diagnostics and thermostat, LED readout, secondary power outlet and cord wrap. The unit requires little to no assembly and covers areas up to 8500 sq. ft. Color: Gray.