This convection heaters offers efficient, clean-burning, 360° instant heat that will turn your workshop or garage into a climate-comfortable area. Heats up to 1,900 sq. ft. with 30,000-80,000 BTUs. No electricity required. Features an expandable shell, adjustable heating output, easy-start igniter, standing pilot for increased safety, and included 10' hose and regulator. For use with a minimum 20-lb. propane cylinder (not included).