This Mr. Heater Vent-Free Propane Radiant Wall Heater is the perfect choice when you want instant, targeted heat. Infrared radiant heat delivers quick, sun-like warmth directly to you and objects in your room rather than simply warming the air. This heater is an efficient and effective solution for staying warm in rooms with high ceilings or excessive drafts. No venting, chimney or electricity is required, making this heater perfect for power outages. Plus, the multi-output valve assures easy temperature regulation. Convenient piezo ignition provides simple, reliable operation. For peace of mind, this heater comes equipped with an automatic low oxygen shutoff system.