Recent content by avrkris

Well, I wasn't expecting so many answers, it was my first post on the forum. Anyway thanks everyone for suggestions. Looks like indeed I really need to run a proper supply/return with 22mm branching to 15mm ... Question still stays, would it be ok to do the 15mm runs in single run of...

Dear Experts, I just bought a house. First night in and it was freezing. Turns up that the "modern CH system" (according to previous owner) consists of up to date combi boiler and a chain ! (yes) of radiators connected with 15mm copper pipe. Most rads are connected in series - output of one...