Stay warm this weekendSubmitted by rocksandlsd t3_10pogjx in Maine
PvtPug t1_j6n7uvl wrote
Reply to comment by ReallyFineWhine in Stay warm this weekend by rocksandlsd
Ive actually heard anything under 10° it's more economical to burn oil as the heat pumps have a drop off of efficiency.
ReallyFineWhine t1_j6n8ktc wrote
The latest heat pumps are rated down to -13F; they'll put out some heat but as you say they're not very efficient at that temperature. They're extracting heat from the air, and at colder temperatures there's less heat to extract.
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