Camplux Portable Heater, Adjustable 6000 to 18000 BTU, Compact Control Dial, Outdoor Propane HeaterSafe & Reliable: The outdoor heater features an automatic low oxygen shutdown system (ODS) and accidental tip over safety shutdown. If someone uses this buddy heater in a tightly enclosed space, the ODS pilot will shut the propane heater down as a precaution. The buddy heater will shut down automatically if the unit is tilted or tipped. Heat up your camping or picnic, porch, shed, and more with a handy propane heater with variable settings for custom