Reddy Heater Heat Demon 30,000 BTU Propane Tank-Top Radiant Heater #HD30G 10,000-30,000 Btu propane radiant tank-top heater For outdoor use; heats up to 700 square feet Dual burner heads rotate up to 180 degrees for wider heating radius; 6 heat settings Runs from 14 to 43 hours on 20-pound propane cylinder (not included) Not for use in enclosed spaces like campers, tents, cars, or homes; 1-year warranty