Mr. Heater F271370 MH60QFAV 60,000 BTU Portable Propane Forced Air Heater
Qbt technology, 50-percent quieter than a standard propane heater
60,000 BTU propane forced-air heater"
Variable 30,000-60,000 BTU output (runs up to 14 hrs on 20 lb. Tank (low setting))
Heats up to 1,500 square ft