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gas supply pipe diameter increase

Posted: Tue May 12, 2009 2:17 pm
by ashcroftsafro
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 :?: :?: :?:

Posted: Tue May 12, 2009 7:17 pm
by htg engineer
Yes - 22mm would be the minimum gas pipe size required.

htg

Posted: Wed May 13, 2009 10:08 am
by ashcroftsafro
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

Posted: Wed May 13, 2009 7:30 pm
by htg engineer
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.


htg

Posted: Thu May 14, 2009 6:23 am
by Steve the gas
And some up to 3m of the boiler :shock: