Don't suffer the cold any longer. With a Mr. Heater(R) 18,000 BTU Vent-free Radiant Heater, warm comfort is a simple button-push away. It fills a room up to 700 square feet with radiant heat and can be mounted to the wall, fastened to the floor or stand on its feet to remain portable. And with the safety features that come standard on Mr. Heater(R) products, rest assured you'll have a safe heat source to last for years! Heats up to 700 sq. ft. Radiant heat burner Automatic low-oxygen shutoff system (oxygen-depletion sensor) High-limit safety shutoff Top-mounted thermostat for simple temperature control Piezo ignition Includes legs and wall-mounting hardware Safe for indoor use Note: Does not include hose, regulator, couplings or blower. Please Note: Once items have contained gas, kerosene, butane, lighter fluid, diesel, or oil they cannot be returned to Sportsman's Guide.