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Heat pumps have come a long way in the last few years in being able to produce useable heat in lower outdoor ambient temperature conditions.
The efficiency suffers as temperatures drop but when you're producing the power yourself, no big deal.
We can see temperatures close to -40 deg (C or F, take your pick...). I will stick to gas.
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Bill K.
"I started out with nothin and I still got most of it left...."
83 911 SC Guards Red (now gone)
And I sold a bunch of parts I hadn't installed yet.
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