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tgma
7mo ago
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Electricity is much more expensive than gas per J. You have to be ~3x more efficient to just break even.
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occz
7mo ago
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As it turns out, you regularly get a COP of >3 from heat pumps, as they don't need to generate the heat, they steal it from somewhere else (outside)
tgma
OP
7mo ago
Right and you simply break even there so there's not much upside in terms of variable costs unless your electricity is somehow cheaper and not mainstream California prices.
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