What winter here asks of a heat pump
Pike County heat runs eight months a year, October through May, and the overnight average in December, January and February is 18°F. That number matters because a standard heat pump starts losing ground well before it gets that cold. Below 40°F it already puts out less than its rated capacity. Below about 35°F it usually needs backup heat to keep up. An average winter night here sits under both marks.
Of the roughly 245 nights the heat runs here, about 145 drop to freezing or below, more than half the heating season. Only about 6 nights a year reach 0°F. So the real story of a Pike County winter is not a handful of brutal nights, it is over a hundred ordinary ones spent below the point where a standard heat pump needs help.
This is where the two machines split. A gas furnace burns fuel to make heat, so outdoor temperature does not touch its output. It makes the same heat on the coldest night of the year as it does in October. A heat pump moves heat from the outside air, so as that air gets colder there is less of it to move. That is not a flaw to fix, it is how the machine works.











