Our Rayburn Number One, gave up the ghost recently - it started to leak. It's been plumbed in to provide hot water and central-heating, but is woefully inadequate for this task anyway, so we want to replace it.
I calculated the heat requirements for the house, based on an outside temperature of -1C as around 17kW. Given that we're in East Anglia, it's fairly temperate down here and we're semi-detached so being bolted to next door helps.
We did have conversations with a chap who talked of using a 12-14KW boiler, and suggested using a thermal store to cover over the difference between the capacity of the thing and our heating requirements. I've also spoken with other folk who indicate these are not suitable for a solid-fuel/multi-fuel arrangement.
I've looked recently at a Stratford Aarrow which is one of the few boilers which seems to supply anything over 14-16KW. Given that we might extend at some point, we're trying to keep this in mind.
Has anyone experience of using thermal stores with solid-fuel/multifuel setups who can recommend (or the opposite) whether they're a good idea. If they've worked fine, what models of thermalstore/heatstore/whatever have you used?
Anyone got experience of the Aarrow ? We've looked at the TF70 and the TF90
cheers Danny