Desa B120 is a portable kerosene or No. 1 fuel oil heater with a maximum heat output of 120,000 BTU per hour. It features a fuel tank capacity of 13.5 gallons and an approximate fuel consumption of 0.85 gallons per hour. The heater has an air output of approximately 450 cubic feet per minute and operates on 115-volt, 60-cycle electricity. Voltage and cycles may vary depending on instruction plate. It has a motor RPM of 3,450 and weighs approximately 90 pounds.