The patent-pending Dyna-Glo HeatAround 360 Elite 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 fuelled by one or two 1lb propane tanks (not included). It can also be connected to a 20 lb propane tank for outdoor use, with an optional hose/regulator (not included). The HeatAround 360 ships completely assembled, and it includes two swivel regulators to easily attach up to two propane tanks. The piezo ignition lights quickly and easily, it heats up to 450 sq feet, and it is adjustable from 13,500 BTUs to 18,000 BTUs. It also includes a safety tip-over shutoff switch, just in case. The Dyna-Glo HeatAround 360 is an outstanding solution for grab-and-go portable heating.