Dyna-Glo 10000-BTU Wall-Mount Indoor NG/LP Vent-Free Convection Heater BF10DTL-4

  
Dual fuel technology allows the unit to be operated with liquid propane or natural gas. Blue flame technology works by convecting heat to warm the air the same way as a central heating system. Up to 10,000 BTU's/hr heats up to 300-sq ft. Thermostat control knob automatically maintains your ideal heat level. No electricity required allows for reliable back-up heating in case of an emergency situation.