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Oxford study proves heat pumps triumph over fossil fuels in the cold
(www.nationalobserver.com)
This is a most excellent place for technology news and articles.
Not in January in Central New Hampshire.
They work in Sweden... and Canada...
Sure it does. Unless your average temp in January is under 5F? And on those really cold days the gas furnace kicks in anyway, so you get the most efficient heating no matter what.
So you still need a gas furnace…