Designed and approved for indoor use. Connects to two 1-lb or a 20-lb propane cylinders, with hose and fuel filter. Free standing or wall mountable. Quiet, odor-free, lightweight and portable. Four-position control valve: Off, pilot, low and high. Wire guard protects against combustible materials. Ceramic grid shock mounted for durability. Piezo spark ignition. Swivel regulator. Durable ABS plastic side construction. Porcelain plated reflector. Folding handle. Features an indoor safe, low oxygen safety shut-off (O.D.S.), and tip-over safety shut-off. Not designed for use above 7,000 ft CSA International certified.