Ceramic Infrared Heating is the answer for spot or area heating and for total building heating needs. It is also ideal for the replacement of existing ceramic heaters. SunStar Ceramic Heaters heat like the sun by transferring radiant heat energy directly into the area to be heated and creating a warm comfort zone at the floor level. This extremely efficient method of heating can result in fuel savings of between 30% and 50% when compared to forced air convection heating. Capacities from 30,000 to 155,000 Btu/hr. Dimpled tile assembly design for increased radiant efficiency. Design certified for angle mounting up to 30 degrees. Equipped with 100% gas shut-off safety control. Constructed of aluminized steel for corrosion resistance. Aluminum reflectors designed to maximize radiant output. Optional protective radiant screen. Compact size for UPS shipping. Input BTU/HR: 100,000. Minimum Mounting Height: 15'. No. of Burners: 3. Natural Gas (SG Supply Requirements): 6" Burner Pressure (Water Column). Supply Pressure (Water Column) 7" Min, 14" Max. Direct Spark Ignition System. 120 VAC. 0.40 Amp. Includes 120/24 V Transformer. 1/2 NPT Female Gas Connection. SG Clearances to Combustibles (Mounted Horizontally): 49" (Sides), 65" (Ceiling), 129" (Below), 181" (with Reflector Extension). SG Clearances to Combustibles (Mounted 30 deg Angle): 129" (Below), 181" (with Reflector Extension), 61" (Front) 85" (with Reflector Extension), 49" (Rear). WARNING: This heater is not approved for any residential installation including home, residential, garage, or recreational use (mobile home, RV