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acoustics_guy

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acoustics_guy ,

Yes, on two points. 1) heat pumps are more than 100% efficient in most conditions. Because they are moving heat, rather than generating it, they can add more heat energy to your home than they actually consume. 2) mix of sources. As you said, even if most of your electricity comes from gas plants, that means some can or does come from renewable sources or nuclear. This makes it much easier to transition to even more renewables, since the consumer side doesn’t need to change anything as gas plants are phased out. It’s future planning with immediate benefits from point 1.

Point 1 can be a bit complex, since in extreme conditions air source heat pumps may rely on resistive heating which is only 100% efficient. Alternatives like ground source HPs don’t have that problem, but they are suited to fewer areas.

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