AZ Patio Heaters F-1201-FPT is an outdoor fire pit fueled by propane gas. It is certified to comply with the standards for outdoor decorative gas appliances and outdoor gas fireplaces. This fire pit is designed for outdoor use only. It consumes air (oxygen) and should not be used in unventilated or enclosed areas to avoid endangering your health. When using the fire pit, keep all flammable materials at least 2 feet from the sides and rear, and 6 feet from the ceiling.