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The Newest Cold Climate Heat Pumps Are Ready for Your HomeIn combination with new refrigerants and other changes, Carter said Carrier's device is as efficient at 5 degrees as ... starting to produce heat pumps for consumers. Lennox expects to have ...
In combination with new refrigerants and other changes, Carter said Carrier's device is as efficient at 5 degrees as ... starting to produce heat pumps for consumers. Lennox expects to have ...
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