gas supply pipe diameter increase


Postby ashcroftsafro » Tue May 12, 2009 1:17 pm

my father in law is thinking of having a new gas boiler insatalled and has been told that he needs to renew his supply pipe and increase it to 22mm dia. his house is only 20 yrs old.

is this true :?: :?: :?:
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Postby htg engineer » Tue May 12, 2009 6:17 pm

Yes - 22mm would be the minimum gas pipe size required.

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Postby ashcroftsafro » Wed May 13, 2009 9:08 am

there seems to be conflicting info coming from the plumbers when asked.

i.e. one will say, you only need to upgrade to 22mm if you are installing a combi boiler. another would say you need to upgrade no matter what sort of boiler you install.

which is true, please.

regards
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Postby htg engineer » Wed May 13, 2009 6:30 pm

The second you will need a minimum of 22mm pipe for most new boiler installations some can be reduced to 15mm to within 1 metre of the boiler.


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Postby Steve the gas » Thu May 14, 2009 5:23 am

And some up to 3m of the boiler :shock:
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