Submitted by happyhourscience t3_10t0xj8 in vermont
Gilashot t1_j74sw0s wrote
Reply to comment by Dangerous_Mention_15 in Some data on heat pump performance today by happyhourscience
Yes, but totally depends on the unit. My Gree Sapphire is still super efficient at -17f. My Mr. Cool is no good at all below -12
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