Gas meters and underground pipework (1)

[dougie120283]

Before i start, i do not intend to undertake any gas work myself and just require a view as to what is possible and suggestions as to the best solution.

I have just had my meter moved from under the stairs to a semi recessed meter box on the side of the house. I did all the excavation work myself and the relocation was done yesterday.

We are having a new boiler (only gas appliance in the house) it is a 4 bed with 2 ensuites and a family bathroom and the plumber said that he may need to use 28mm copper from the meter upto the boiler distance of around 6m in a straight run. this is all fair enough but the pipe that Cadent installed yesterday is either 20 or 25mm MDPE - My question is this; is there any value in installing the 28mm copper or is this worthless given the smaller pipe size up to the meter?

second question. rather than having copper pipe exposed on the side of the house could the pipe after the meter be buried under the ground in a suitably deep trench and reappear in the boiler room? and can this be in MDPE? or would something like Tracpipe be better?

Thanks in advance,

 

[muggles]

The Cadent-installed service runs at a much higher pressure than the gas in your house, and so a smaller pipe can be used. The regulator on the meter then reduces it to the correct pressure.

You could probably have a buried gas pipe but you'll have to ask your installer as they're the one who has seen the job and will know of any potential obstacles

 

[Dan Robinson]

^ this.

 

[dougie120283]

thats great, many thanks.

Subject to site conditions, in principal can MDPE be used after a meter? Tracpipe is expensive gear and MDPE is not!

 

[Dan Robinson]

No.

 

[dougie120283]

Even underground?

 

[Dan Robinson]

Yes.

 

[dougie120283]

Great. Thanks for the help.

 

[gas112]

Yellow PE can be used after the meter but only underground

 

[dougie120283]

Any more for any more? You either can or can’t!!!

 

[Dan Robinson]

I shall gracefully defer to 112.

 

[akist]

Yellow PE can be used after the meter but only underground

So very near the boiler, and while still underground, we connect a copper pipe to the MDPE, so that the copper pipe emerges from the ground, and all is good?