New boiler quote, do they need to replace the gas pipes?

[scata]

Hi All.. my first post here..

I've just had a quote for a new boiler from BG, but along with the boiler they have said that I also need to replace the gas pipe from the main inlet to the boiler, as the regulations have changed since the current one was installed (1987ish) and a wider pipe needs to be run.

However none of the other two quotes I got said anything about this needing to be done.

Have the regs changed? or is this just BG after a bigger job?

 

[ollski]

It depends on the size / type of boiler they quoted you for, if it is a higher kw rating it may require repiping. There is a calculation for the size of the gas supply pipe though and if it is too small it will give you problems and can be very dangerous.

 

[COG]

As said the size depends on the imput/output of the boiler ,most combi boilers will require at least a 22mm pipe ,nothing to do with a change in regs