Two radiators on one 10mm pipe

[denso13]

Double post

 

[denso13]

I thought all the piping is 10mm??

My house is a 1930’s semi the central heating is all 8mm and 10mm copper microbore fed from manifolds off 22mm feed and returns.

 

[ree]

OP,
Do you intend to acknowledge or thank the posters who advised you in your last Thursday thread about blocking fireplaces?

 

[Nige F]

OP,
Do you intend to acknowledge or thank the posters who advised you in your last Thursday thread about blocking fireplaces?

here speaketh the diynot police gets real touchy about thanks - like Trump

 

[Jasontenn]

OP,
Do you intend to acknowledge or thank the posters who advised you in your last Thursday thread about blocking fireplaces?

My apologise, very busy with various house renovation projects plus my day job (long shift work). Other thread regarding my chimney has been suitably acknowledged.

 

[Madrab]

Probably the reason your system is working OK is that it's all 8/10mm and there are only 7 rads. 10mm pipe can supply anything up to ~ 2.5Kw2 where the system is compact, relatively well balanced, pump is strong, the overall run sizes aren't that large.

The trouble starts, with microbore, when trying to supply rads on longer runs that are disproportionate in length/diameter, system isn't clean and healthy and balancing becomes a real issue.