I’m going to say do it, but it is very different to normal on demand heating, you have to plan what temperature you want to hit and when rather than just cranking up the boiler. It’ll do it but the heaters eat your money!
Nice. If the woods free and you have the time, I’d stick with it. It sounds like until the electricity is free it’s a no brainer. Solar and a pre warmer are the gold standard.
I’m going to say do it, but it is very different to normal on demand heating, you have to plan what temperature you want to hit and when rather than just cranking up the boiler. It’ll do it but the heaters eat your money!