Mr. Heater, MH50KR, 50,000 BTU Forced Air Kerosene Heater (All Black), 50,000 BTUs heats up to 1,250 sq ft, 6 Gallon Tank with fuel gauge, For use with kerosene 1 and 2, diesel 1 and 2, home heating oil, JP-8 and Biodiesel blends B2, B5, B10 and B20, Operates approximately 16 hours on full tank, Overheat safety shutdown.