The first heat pumps to pass the U.S. Department of Energy's Cold Climate Heat Pump Challenge might be in customers' homes by the end of the year.
The Cool Down on MSN3mon
Company unveils solar roof tiles capable of powering heat pumps — and they could be the future of home energyA German company has debuted a new photovoltaic roofing tile that could help change how homes around the world are powered.
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