The SunStar® Garage Tube Heater is ideal for residential garages, vestibules, entryways, workshops, enclosed patios, restaurants, smoking shelters, small greenhouses, hard-to-heat small areas and low-ceiling height applications. Low intensity radiant heat can save up to 30% in fuel savings over convection warm air heating. Heaters can be controlled by a line voltage thermostat (sold separately). If preferred, the heaters can be controlled by a 24V Thermostat and a 24V Thermostat Relay Kit