quick question re central heating in loft extension

andsally · 8 Oct 2012

A new loft extension is to be built. Combi boiler on ground floor. 1st floor has 22mm pipes teeing off to 15mm for radiators.

At least 16ft of pipework needs to be teed off from 22mm pipes on first floor to supply radiator(s) in new loft extension.

Should this be 22mm or 15mm?

Thank you.

Armo74 · 8 Oct 2012

15mm should be fine.

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quick question re central heating in loft extension

andsally

Armo74

DIYnot Local

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