Dyna-Glo Delux portable multi-fuel forced air heaters provide immediate relief from cold weather working conditions. Ideal for use in outdoor or indoor construction or commercial environments with proper ventilation, multi-fuel heaters require little to no assembly and are 98% fuel efficient. 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. Heating coverage is up to 1,900 sq. ft. Self-diagnostics, thermostat, LED readout and cord wrap features are included. Color: Gray.