How Cold Can Heat Pumps Go? 

Heat pumps don’t have a reputation as being a particularly glamorous technology. They sort of act like a combination of an air conditioner and a refrigerator, pumping heat out of a home in the summer and pumping it back inside during the winter.
But governments around the world increasingly see heat pumps as a chance to make some big improvements in energy efficiency, and some recent technological developments could expand dramatically the number of homes that could employ heat pumps.
Host Stephen Cass talks to Spectrum’s new power and energy editor, Emily Waltz, who recently joined the staff after many years contributing to Spectrum as a freelance writer.
For a full transcript, visit: spectrum.ieee....
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