Dyna-Glo DELUX Double Tank Top Propane (LP) Heater - 9K-30K BTU BTU Output: 9,000 / 13,000 / 15,000 / 18,000 / 26,000 / 30,000 Output Settings: 6 Heating Area (Sq.FT): 30 ft. Radius Minimum LP Tank Required (lbs): 20 Fuel Consumption (lbs/Hr): .42 - 1.39 Max Run Time (Hrs) / Tank Size (lbs): 24 / 20 lb tank Packaged Weight (lbs): 6.57 Assembled Weight (lbs): 5.09 Heater Certification: CSAANSI.