You cannot get a grant for a hybrid heat pump system (for example a combination of gas boiler and air source heat pump).

I think it just requires you to have a heat pump for all your water and heating. There appears to be pumps that do both, (mentioned in this article) but that’s more research than I can get away with while ‘working’.

Do you have a link for the exclusion bit?

If it’s green energy it’s not really a huge problem.

Put some solar panels up too and you’re golden.

I guess that’s to stop people from using it to get air-con when it’s mean to help people move away from gas. A bit silly though.

…I suspect there are a few models that only need 1 part switched for it to be possible…

They are trying to push people to heat pumps (basically air conditioners tech wise)

They are also moving towards building/efficiency regs that require completely sealed houses and forced air systems in new builds.

So new houses will effectively be required/encouraged to have an air con capable houses.

The old housing stock though? Oof. I’m on a private estate that even bans that kind of stuff!