Thanks for all your advice, very thorough. Sounds like the system boiler is the way to go, shame to let a good combi go to waste but it's gotta be right.
Yes MeldrewsMate, we just had a new 22mm mains pipe installed which will be routed like you say, thanks.
Yes MeldrewsMate, we just had a new 22mm mains pipe installed which will be routed like you say, thanks.