What is a two stage heating or two stage furnace?
Two stage heating is a method to make your home more comfortable while reducing your energy. Sound contradictory? Well, that's the truth. Two-stage furnaces are designed to operate like two separate furnaces, maintaining more consistent comfort levels throughout the home. Your furnace or air-conditioner maintenance group will be able to give you more information regarding their working, but I'll explain the basic facts.
A two-stage furnace will always start in the first stage and attempt to meet the heating demand. During mild winter only the first stage will be required that to running at about 60-70% of its efficiency.When temperatures drop, the furnace adjusts itself and enters the second stage to meet the demand for heat within the home. With two-stage heating, a homeowner has no need to keep adjusting the thermostat.
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