Item was connected to natural gas for testing Model #BF30DMF Wall-mounted indoor heater uses dual fuel technology for your choice of either liquid propane or natural gas Heater provides up to 30,000-BTUs per hour, and warms an area up to 1,000-sq ft Thermostat control knob automatically maintains your ideal heat level 24.09-in H x 10.51-in D x 28.07-in W Innovative wrong fuel shut-off prevents issues from an incorrect fuel hook-up Propane heater does not require electricity, making it a reliable, back-up heater option Blue flame heating technology spreads heat like a central heating system by convecting heat to warm the air
