Mr. Heater, 135,000 BTU DEWALT Forced Air Kerosene Heater, Heats up to 3,000 sq ft., 8.5 gallon tank with fuel gauge for up to 9.5 hours of run time, Built-in thermostat, Multi-fuel forced air heater, compatible with kerosene, filtered diesel #1 and #2, fuel oil #1 and #2, or even Jet A Fuel (JP8), High temperature safety shut-off switch and photo cad cell flame sensor, Cold weather starting capability, Continuous spark ignition, requiring a 115-Volt AC outlet, Split upper shell and flat-free foam filled tires for easy maintenance, Perfect for well ventilated construction sites, barns, warehouses and workshops.