Because they run on electricity, it’s possible to operate heat pumps on zero-carbon sources, like wind, solar and nuclear. On a modern heat pump, they can pluck heat out of even the coldest outdoor air. He replaced his old heat pump with a new one that works better in colder temperatures. One solution would be adding an electric heat pump on top of the gas furnace. Slotterback and his wife Carissa, an academic with environmental expertise, eventually found a contractor to install a heat pump.
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