Re: How easy to increase gas pressure to house?

[Coherers]

why not use the one you used when you installed the boiler...

> > Jim A >

:-)

[nick smith]

Well, the "CORGI" man that came to certify my install (and found all just fine) twiddled the gas meter regulator to give the correct 21 mBar - it was a bit low apparently. Didn't involve BG though !

Nick

[tarquinlinbin]

Adjusting and/or working on the meter is not a job for CORGI,it is the gas transporters responsibility who will work on behalf of your gas supplier. In the majority of cases the gas transporter is Transco. If you suspect low pressure then tel [phone] and report it so that it can be checked and remedied.

[Ed Sirett]

Um. As often as not low pressure is due to low supply pressure which no amount of (illegal) tweaking the main govenor will fix. Although it did here.

[tarquinlinbin]

He acted incorrectly then... :)

[Brian G]

Ah! But he KNEW what he was doing :-)

Brian G

[nick smith]

I would hope so, being CORGI and a "Professional"...

Ed - I wonder what the regulator adjustment IS for, if it's not for adjusting the output pressure ?

It was only a couple of millibars low - I assume this is well below the incoming supply pressure and just maintains a steady pressure for the in house appliances, which presumably have been designed to or calibrated to work at 21 mBar plus or minus a small tolerance. He just adjusted this pressure to 21, so the appliances were in the centre of their design supply pressure. The meter did seem to be about 15 years old and I guess they drift with age and wear and tear.

Nick

[Earl Kella]

Many thanks to all who replied - I've been having trouble reading all responses (trouble with news reader) so I had to search google groups to see them all.

My gas pressure does seem a bit low - about 19mb which is just on my boilers minimum. I couldn't time it to measure when it was firing up as it was only me in the house at the time but I suspect this will drop when under load. I am going to service my boiler anyway when the current cold snap is over, probably over Christmas.

Thanks again, I will my the Corgi bloke a call and see what he has done before, if anything, otherwise go the Transco route.

Earl

[Ed Sirett]

Much of this is in the gas fitting FAQ. Usually the incoming service main is well above 21mBar. In certain places at certain times of the day it may be somewhat below this. The adjustment is to allow for manufacturing variations and pehaps some degree of wear over its life time.

[John Rumm]

YOu are unlikely to get a sensible reading when not under load. You need to see what it does when gas is being drawn (even if you just put a gas ring on rather than the boiler). A twiddle of the room thermostat ought to do the trick for the boiler mind you.

You also ought to measure the pressure at the boiler as well. That way you get to take into account the reduction caused by the flow resistance of the pipework to it. There ought to be a test nipple on/in it somewhere.