Mr. Heater 250,000-400,000 BTU Forced Air Propane Heater with QBT, Regular, Multicolored

* 250000 - 400000 BTU per hour * For use with propane gas. * Heats up to 10,000 square feet * Operates up to 17 hours on 2-100 lb. propane tanks - low setting. * Rugged; durable; steel construction; Heavy duty high output fan