DIY Doctor

Can central heating manifold take 15mm pipe

Postby Sinny » Mon Feb 22, 2010 7:55 pm

I'm changing downstairs manifolds in central heating to a new ones, old manifolds can only take four radiators and i wan't to fit a fifth, also old one's constantly leak. My question is, while i'm doing this job can i replace all 8mm pipe with 15mm, do manifolds take 15mm pipe or are they made for microbore only. Chris
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Simply Build It

Postby chris_on_tour2002 » Tue Feb 23, 2010 9:40 pm

yes they do come in 15mm, in fact they come in all manner of sizes, many a good deal larger than 15mm. a more important question is whether it will suit the rest of your system.
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