Sales are growing so quickly that some installers wonder whether heat pumps could even wipe out the demand for new air conditioners in a few years and put a significant dent in the number of natural gas furnaces.
Another commenter claims all you need is one more valve. I suspect the design changes are slightly more involved than that, but in principle it’s certainly doable.
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Huh. I had wondered whether air conditioners could be made reversible. Neat.
Another commenter claims all you need is one more valve. I suspect the design changes are slightly more involved than that, but in principle it’s certainly doable.