The Grainger Approved Portable Convection Gas Floor Heater is a propane-powered portable heater that provides 60,000 BTUs of heating power. It features an adjustable heat output control knob and an integrated piezo ignition for easy start-up. This lightweight, compact unit has a durable steel construction with a powder-coat finish and includes a tip-over safety shut-off. The heater runs on disposable propane cylinders (not included) and has a runtime of approximately 10 hours on a standard 20 lb cylinder. With its built-in carrying handle and wheels, this portable convection heater can provide temporary supplemental heat for garages, workshops, construction sites and more.