Heat pumps are they a waste of money?

[MashBag]

I remember back when i was a kid we had coal fires with back boilers which t heated water in a huge copper water tank in the airing cupboard those tanks seemed to be a lot bigger than the tanks these heat pups have you are going to have to be able to store a lot of hot water for days you have little sun or wind i don't think either are the solution if you are off grid.

Probably best with a wood burner and back boiler.

Were you a bit smaller then?