combi boilers choice

[Millsy 82]

Your right, should be one single pipe loop with branches off the each radiator. If you pipe in and out of each rad it would be very unbalanced and closing one rad off would cripple the system

I'm not an older boy though, I'm only 31, maybe that is old

If your old I'm past it then as I'm 36 lol. It just seems now you very rarely come across them where as the old boys who are probably nearing retirement would of been installing them.

 

[whatsthenews]

Personally steer clear of microbore. I get its usefulness and ease of routing but its a much better job to run 15mm (off of 22mm feeds) to the rads.

Less likely to block (I know you have just had it flushed but in time it's inevitable the system health maintenance will be skipped and you'll end up with sludge build up)

Id get a quote for 15mm/22mm pipework and see what the difference is. If you can stretch for the 15/22 then do it.

If you can only stretch to the microbore then it'll generally still be a big improvement on a one pipe system.

Especially as the flushing of the system with one pipe system present causes difficulties in getting a thorough clean (unless every rad on the one pipe circuit was removed and flushed through manually).

Thanks Lee. Anyone else like to comment?

 

[Aire]

Thanks Lee. Anyone else like to comment?

Id agree with Lee and so will most other plumbers. Its used for speed and cost on newbuilds but it's not without its problem. Very easily effected by sludge build up. 22mm mains runs and 15mm copper drops to each rad would be my preferred choice.

 

[Jerry]

Thanks Lee. Anyone else like to comment?

Yes! I thought it was a really good topic so i started another thread about it:
Long Term Health of a Microbore Heating System

 

[whatsthenews]

Yes! I thought it was a really good topic so i started another thread about it:
Long Term Health of a Microbore Heating System

Thanks Jerry.

 

[allheatingone]

I have seen a combi installation where the infloor loop was driven off of the potable side, the space heating loop was driving low profile rads which run at a higher temperature. Whoever did this work felt this was a simple solution and failed to use potable fittings and tubing.

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