For chilly deck parties, icy days on the lake, or cold nights at the campsite, the Portable Buddy is the perfect companion. The radiant burner acts as your own personal fire pit, with two settings giving up to 9,000 BTU of heat. Connects quickly to a 1-lb propane bottleor to a 20-lb tank using Buddy accessoriesso you can spend more time doing what you love. Speaking of time, a 1-lb bottle will last you up to three hours on the high setting, so the enjoyment (and warmth) will last. With the heaters' Life Safety System you won't sweat too much knowing the oxygen depletion sensor, thermal shut-down system, and tip-over switch are keeping you safe. No matter how you spend your time outside, don't forget to bring your Portable Buddy. Swivel regulator gives you the ability to adapt usage from a disposable cylinder to a remote 20 lb. gas cylinder with the purchase of a hose and filter (cylinder, hose, and filter sold separately) To light the portable buddy heater, simply rotate the knob to pilot and push, and the integrated Piezo sparking mechanism will take care of the rest Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off help ensure safe use of the portable heater for years Emits 4,000 or 9,000 BTU/hr radiant heat Heats up to approximately 225 square feet