I can't find the recent thread, but there was an interesting and surprisngly fact-filled item on R4 You And Yours today - just on, around 12.30, including contributions from one of the Manufacturers - Worcester-Bosch?
Well worth a listen as there seemed to be some conversation about limitations that I've not heard before. I can't remember the actual numbers, but the current estimate is that less than half the number of homes "officially" thought to be suitable, actually are.
Three things stuck in my mind in particular - modern micro-bore systems can't be re-used, you need something to provide hot water, which many more modern homes is a combi, which is not ideal, insulation rating has to be C or better.
Well worth a listen as there seemed to be some conversation about limitations that I've not heard before. I can't remember the actual numbers, but the current estimate is that less than half the number of homes "officially" thought to be suitable, actually are.
Three things stuck in my mind in particular - modern micro-bore systems can't be re-used, you need something to provide hot water, which many more modern homes is a combi, which is not ideal, insulation rating has to be C or better.