Most houses in The Villages have a heat pump, which is all electric and is an air conditioner that can run in reverse in the winter to heat as well as cool. So, in the winter, the cooling coil becomes the heating coil. However, some houses have an air conditioner that only operates as a cooling device. But, there is a gas furnace built into the air handling unit that heats the house in the winter. Even though the gas furnace uses the same air handling fan to circulate air throughout the house, the heating and cooling functions are totally separate. The gas is not needed for cooling.
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