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A comment on 'Greener, cheaper, much warmer' – heat pump owners laud their new system. Parent comment

Re:'Greener, cheaper, much warmer' – heat pump owners laud t... by soco on Monday January 08, 2024 @08:18AM (#38911482)
We did, or rather received such calculations from the providers. Today and here, depending when you retire and what your plans after that are, you might think twice about getting a geothermal one. The air-water would fit as the 1:1 replacement for the oil heating we have, with the promise of barely breaking even. NB: when you replace/upgrade an existing pump, some costs won't come again.
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Re:'Greener, cheaper, much warmer' – heat pump owners laud t... by starbugs on Monday January 08, 2024 @08:21AM (#38911530)
> We did, or rather received such calculations from the providers.

Well, the calculations from the providers are highly likely to be "optimized". I would suggest the first point one might check is if the given COP is realistic. Usually it isn't.

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