How Does an Energy Efficient Propane Furnace Work?


Energy Efficient Propane Furnaces

  • Today's propane furnaces are approximately 92 to 94 percent energy efficient. They cost approximately 50 percent less per BTU to operate compared to wood or electric heating sources. Propane furnaces provide steady, warm temperatures. Another benefit of propane furnaces is that they aren't dependent upon electricity. In a power shortage or outage, propane heat continues to function.


  • Energy efficient propane furnaces are equipped with vent dampers. Vent dampers are located within the ventilation shaft or flue. They close automatically once the heat requirement is met and after the remaining heat is entrapped inside. When the thermostat calls for more heat, the vent dampers open before the burners come on. This allows combustion fumes to be released. The burners are ignited only after the vent dampers are opened.


  • The main types of propane furnaces are wall furnaces, combination heaters and central furnaces. The central furnace, however, is the most energy efficient.
    Propane furnaces are designed with electronic ignitions that permit the homeowner to activate the burner only when heat is necessary. Propane is better preserved this way because there is not a continual pilot light. Newer propane furnace models function easily with a remote control and can be positioned just about anywhere in your home. The exhaust system of energy efficient propane gas furnaces is cooler in comparison to traditional furnaces. In addition, the venting systems of the newer models can be easily modified to fit various structural home circumstances. They are also capable of being vented horizontally or vertically. Because newer models are quite compact, they can be installed into small spaces.

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  • Photo Credit Timothy Valentine, Xtaq, Flicker
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