M
malthouse
I appreciate any advice here. Quick synopses of sorry tale. Plumber did wet work on my combi central heating & it was only when I got the boiler commissioned that gas guy told me I had a one pipe system. Got plumber back to install two pipe system but from then on its been hell. One pipe system worked & all rads got hot but only with all lockshields open & TRV's removed. When plumber left, second time only 3 rads worked & he promised to be back to sort it. By the way, plumber no longer taking my calls! Having run out if money I went on the net to check what he'd done was correct, only to discover I had a combination of the two pipe systems and no matter how hard I've looked, I cant find the answers so here goes. I've now got a flow & return to all radiators and the same three are heating up. 1, 5 & 6 are working. 2, 3 & 4 are stone cold. Rad 3 is tee'd from the hall on a 3 meter length of pipe. Should he/I have run flow & return right up to rad? That would potentially answer problems with rad 2. Also, not all flows are going through TRV & my return pipe starts at return of first rad so could that also be the issue? I've bled the system to within an inch of its life and have tried switching off 1, 5 & 6 to balance but it makes no difference. I don't mind putting the hours in to fix it and have got used to climbing over joists but I'm just not getting it so any advice would be really appreciated.