30,000 BTU Tank Top Propane Heater, Variable Control For 18,000 - 26,000 - 30,000 BTU's, Double Burner Heads Swivel Independently To Allow Multi-Directional Heating, Operates Up To 24 Hours Attached To A Standard 20 LB Propane Cylinder, For Almost Any Outdoor Activity. No Electricity Required, CSA Certified.