The patent-pending Dyna-Glo HeatAround 360 is the only portable recreational heater that provides 360 degrees of warmth. It’s compact, versatile 360 design makes it the ideal choice for grab and go heat. The oxygen depletion sensor allows safe indoor use, for emergency heating. No electricity and no batteries are required, as it is fueled by a 1 lb propane tank (not included). It can also be connected to a 20 lb propane tank for outdoor use, with an optional hose/regulator (not included).