Mr Heater Portable Tough Buddy 4,000 to 9,000btus 4 POSITION CONTROL WITH BUILT-IN PIEZO IGNITER AND LO/HI HEAT SETTINGS AND ALSO A HIGH TEMPERTURE WIRE GUARD LARGER HEATING SURFACE DIRECTS RADIANT HEAT OVER A WIDER AREA AND ALSO HAS A PORCELAIN COATED REFLECTOR FOR EXTENDED LIFE CERAMIC BURNER TILE MOUNTED WITH SHOCK ABSORBING INSULATION FOR DURABILITY AND EASY REPLACEMENT ALSO HAS LOW-OXYGEN SAFETY SHUT-OFF (ODS) TIP-OVER SAFETY SHUT-OFF WITH FOLD DOWN HANDLE FOR EASY STORAGE SWIVEL-OUT FUEL CONNECTION FOR EASY LP CYLINDER OR HOSE INSTALLATION