Desa Tech AM140 is a portable heater with a heating capacity of 50,000 BTU per hour. It uses kerosene or No. 1 fuel oil for fuel and has a fuel tank capacity of 13.5 gallons. The heater is equipped with an electric arc ignition system and a fan that provides additional air for combustion. The air output is approximately 350 cubic feet per minute. The heater has a thermostat for automatic temperature control and can be used for temporary portable heat in well-ventilated areas. It comes with a safety control kit and has a grounded plug for safety.