Solaronics Suntube IV GQ Standard-Duty Gas-Fired Infrared Radiant Tube Heaters are proven single-stage heaters in the Global Quality Series. Save up to 75% in energy costs. Aluminized steel heat exchangers resist corrosion. Models available with gas inputs from 40,000 to 200,000 BTU/hour and radiant tube lengths from 10 to 70 feet. Excellent for heating commercial and industrial buildings. Read more...More Product Announcements from Solaronics, Inc.