Up to 3,500 square feet of comfort. Remington does it again with this 140,000 BTU portable forced air kerosene heater. It has a built-in thermostat, heavy-duty solid wheels and the advanced safety features you expect from Remington. This heater is engineered to be low maintenance. Also for your convenience, it's been tested for cold-start conditions and can run on K-1 kerosene, #1 and 2 diesel fuel, JP8/Jet A fuel and #1 and 2 fuel oil. Heat things up with Remington.