The Patio Comfort (NPC05SPP) 41,500 BTU Infrared Natural Gas Permanent Post-Mount Patio Heater features a stainless steel construction, 34 inch one-piece anodized aluminum reflector, up to a 10-15 foot radiant circle of heat, 41,500 BTU stainless steel burner, stainless steel fasteners, convenient push-button piezoelectric ignition system, oxygen depletion sensor (ODS) that will shut the unit off if there is inadequate oxygen in the area, auto-off tilt protection that will shut the patio heater off if it is tilted over 30 degrees, and safety pilot system to stop the flow of gas if the burner goes out. This post-mounted heater comes complete with a permanent in-ground post and 12 foot CSA approved, steel-lined, vinyl wrapped natural gas connector kit with two solid brass quick disconnect couplers and completely pre-assembled post internals. Unit requires a 18 inch clearance from the top and sides. For outdoor use only. UL approved. All Patio Comfort patio heaters are shipped in TWO cartons: one carton contains the patio heater, the second carton contains reflector.