Radiator Circuit Plan - Any thoughts?

[rstark]

Hi

I am currently modernising my house, taking out a 10mm microbore system and replacing with 22mm and 15mm pipe and standard size radiator values with TRVs.

Please see the below diagram I am not sure if the best option (A) is to run one main loop or (B) send the main circuit off in 2 directions. Unltimately would it make any difference.

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• rstark
• 12 Aug 2011
• 2

Ta
Rob

 

[45yearsagasman]

IMO most professionals would choose option B. This would keep the amount of pipework to a minimum and make balancing straightforward.
I assume the boiler is in the internal cupboard?
Its not a big system. Is it sealed or open vented and what boiler do you have?

 

[ChrisR]

Keep them short, so (B)
But you can do this sort of thing for small rads too, no point taking them all back to the 22mm

 

[dcawkwell]

Where is bedroom 1?

 

[rstark]

Hi

Thanks for advice.

Its an open vented system, the boiler is in the kitchen with the pump and valve upstairs above it. There are 2 more bedrooms upsatairs these were added at a later date are were not on the microbore circuit.

Cheers
Rob

 

[ChrisR]

Seal/pressurise it. It'll be quieter, cleaner, more reliable...

 

[monoxide62]

Just make sure all flows are uniform , seems you have a mix & match with some flows to right of rad & some to left of rad. , not that it makes any difference whatsover , just good practice.

 

[monoxide62]

Just make sure all flows are uniform , seems you have a mix & match with some flows to right of rad & some to left of rad. , not that it makes any difference whatsover , just good practice.

 

[bengasman]

...not sure if the best option (A) is to run one main loop...

Common misconception but 2-pipe system is NOT a loop. 1-pipe systems were.