Thank you! Also sounds like heat pumps come with multi or infinite stages akin to a CVT to be able to run at any speed for the heating or cooling demands. Rather than legacy units that are only On or Off.
Down in the comments, sounds like MA has good incentives, but not seeing other states. CA is banning new gas installations, so I assume heat pumps are the only way for new developments
> Also sounds like heat pumps come with multi or infinite stages akin to a CVT to be able to run at any speed for the heating or cooling demands. Rather than legacy units that are only On or Off.
Yeah, kinda. They can convert the incoming power to dc then back to ac at a different frequency so they can run at any speed. This cuts the energy losses from start-stop.
Less related to heat: It also has a neat side effect that it's a very simple change to make them run directly on solar with no (separate) inverter (and with no AC->DC step). On top of being more efficient even with AC->DC->AC this means in hot climates the energy used for cooling is used more efficiently, and the inverter on the solar array doesn't need to be as big (if you're getting full noon sunlight you probably want the AC on).
Down in the comments, sounds like MA has good incentives, but not seeing other states. CA is banning new gas installations, so I assume heat pumps are the only way for new developments