Mr. Heater, DXH70CFAVX, 70,000 BTU DEWALT Forced Air Propane Heater, Heats up to 1,750 sq ft., 70,000 BTU/HR, Corded orCordless capabilities (20v MAX battery & charger cold separately), Up to 6 hours of run time, Ergonomic handle for easytransport, Equipped with Quiet Burner Technology®, Includes 10-ft hose and regulator, Perfect for well ventilated construction sites, barns, warehouses and workshops.