Central Heating Pipe Size

Barnman · 20 Apr 2008

I have always used and seen 15mm pipe to radiators. I see JG have a manifold that goes from 22mm to 4 x 10mm. Is this OK and has anybody used it? Is 10mm to radiators OK?

ChrisR · 20 Apr 2008

You can use 10mm, 8mm, even seen 6mm (but not 4mm, yet!)
It obviously has a higher resistance than 15mm, so it depends on the lengths and flows required.

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Central Heating Pipe Size

Barnman

ChrisR

DIYnot Local

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