juiceboxzero t1_iv7wwdb wrote
Reply to comment by fuzzywuzzy1988 in New dwellings in Washington state must be warmed by heat pumps, rather than furnaces, beginning in July, state board rules Friday by BarnabyWoods
Not as efficient...as what? That article doesn't compare to gas heating; only to itself at other temperatures, and to resistive electric (COP = 1).
Ulitmately, for most of Washington, the hours per year where the temperature is low enough for heat pumps to be unacceptably inefficient is quite small, and more than made up for by the rest of the year.
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