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How efficient are inverter ACs for heating if it's >0 outside ? Anyone has cost comparison that would ballpark it ?
by moonchrome 5y ago
How efficient are inverter ACs for heating if it's >0 outside ? Anyone has cost comparison that would ballpark it ?
- bluGill 5y agoDepends, some do a lot better than others, but in general until it is below freezing by a bit heat pumps are overall more efficient.
- hectormalot 5y agoThere is a great (German) database with heat pump performance. You can switch to English on the right top: https://www.waermepumpen-verbrauchsdatenbank.de/index.php?button=verbrauch https://www.waermepumpen-verbrauchsdatenbank.de/index.php?bu... There's quite some monthly data on Air/Water systems (extracting heat from outside air, into a central heating system). I suppose good Air/Air systems could be similar. Indeed above >0, or at least >5C it would be beneficial (even more so if you also have PV installed)