top | item 36057319 (no title) franckl | 2 years ago Heat pumps extract additional heat from a "cold source" like ambiant air. They do output more heat than resistive heating. discuss order hn newest thx-2718|2 years ago [deleted] franckl|2 years ago It says heat energy load replies (1)
thx-2718|2 years ago
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franckl|2 years ago