4 ms·
Yeah, depending on your climate, a heat pump can have a Coefficient of Performance [1] of like 3.5. If you don’t take this into account and just take “natural g
by boulos 5y ago
Yeah, depending on your climate, a heat pump can have a Coefficient of Performance [1] of like 3.5. If you don’t take this into account and just take “natural gas in therms => kWh” it often seems like a heat pump would be a large increase. Divide by 3 and it’s suddenly much better :).
[1] https://en.m.wikipedia.org/wiki/Coefficient_of_performance https://en.m.wikipedia.org/wiki/Coefficient_of_performance
- sbradford26 5y agoAlso ground source heat pumps can have COPs in the 4-4.5 range and also keep that performance through a wide temperature range unlike air source heat pumps. Sadly air source heat pumps COP really start to drop around 0F even with the new hyper heat models. Given that I would still probably prefer an air source heat pump over using heating oil or propane.
- pitaj 5y agoYeah the reason they stay in the higher range is because they're pumping from a source of higher temperature in the first place. They're also more effective at air conditioning because they're pumping into a cooler medium.