Whether you use it in your garage to keep your cars warm or in your shop to keep the work force busy and comfortable, the Heatstar Garage heater transfers almost all of the fuel it burns directly into clean safe radiant heat Clean, Safe, Radiant Heat whenever you need it 25,000 BTU per hour For use with Natural Gas Heats up to 500-600 sq. ft. For use in buildings with 7 to 8 ft. ceilings Efficient infrared heat that directly heats people and objects which in turn heats surrounding air to desired temperature Includes adjustable thermostat for individually controlled warmth and all necessary brackets and hardware No electricity required Easy to install No moving parts to service Quiet, clean, odor-free operation Non-corrosive materials used throughout construction