The MH125LP, part of Mr. HeaterÆs Contractor Series, is a 125,000 BTU Portable Propane radiant heater. Made of rugged, durable steel, this heater is built to last. The MH125LP provides reliable heat for areas up to 3000 sq. feet. It will operate for up to 17 hours on a 100-lb propane tank. The MH125LP now features a folding handle and transport wheels for easy moving. This unit is great for construction sites, remodeling jobs, repair shops, workshops, loading docks, and many other heating needs. The MH125LP comes ready to use with the included hose and regulator. It operates on a 100-lb propane tank (not included).