Implications with having two gas supplies in one building

[ShaunCorbs]

The new 250 Kw would work off a U25. That's why I didn't get the U40?
Unless he is adding the other appliances that the existing supply feeds but then he does not say how big the 2 warm air units are or the combi boilers.
You know yourself, a warm air unit can be any size.
It's one thing to guess a combi but not that.

That's the only reason I posted about the Gas use. It did not deserve the deeerrrrrr!.
Why not calculate the requirements accurately?
Why try to apply for an oversized meter?
The process of application asks for the gas use anyway, you can't just apply for whatever meter size you fancy as you know.

That's my estimation

U16 if sized right and u25 combined into one meter

And that's why I said if the u16 is sized correctly

And yea you can easily loose 65kw - 150ke on one unit

And yea but the next one up is a u65 from a 40 ?

 

[Last Plumber]

That's my estimation

U16 if sized right and u25 combined into one meter

And that's why I said if the u16 is sized correctly

And yea you can easily loose 65kw - 150ke on one unit

And yea but the next one up is a u65 from a 40 ?

Still no reason why it can't be worked out is there?
That would give an answer. The right answer. The only way to do it.

 

[ShaunCorbs]

Still no reason why it can't be worked out is there?
That would give an answer. The right answer. The only way to do it.

Nope just op didn't supply any figures so had to take a shot in the dark a bit 😀

Yep

 

[bacon_sandwich]

Guys, chill out, my OP was about 2 supplies, i can do the math on meter size and i did, thats when the client then mentioned "additional stuff that i cannot size" after i hit him with the U40 quote. U40 covers his known demand but its at the limit.
The Deeer was all about you thinking i was needing help to size a meter, i dont, thx i needed help on multiple supplies.

 

[firemant]

I work in plenty of Buildings where there is more than one Meter installation. They have all been installed by Nat Grid.

But were they occupied as one premises?

 

[Last Plumber]

But were they occupied as one premises?

Yes they are.
There is even one with two meters side by side. One serving a boiler, the other a kitchen. (Nursing home).
Weird set up I admit! But it’s there.

 

[firemant]

Yes they are.
There is even one with two meters side by side. One serving a boiler, the other a kitchen. (Nursing home).
Weird set up I admit! But it’s there.

Sorry. Misread your previous post. There can be multiple meters but only one supply into one premises.

 

[Last Plumber]

Sorry. Misread your previous post. There can be multiple meters but only one supply into one premises.

Can't remember whether that one did but I know of others that have two separate service pipes. Normally large buildings such as a mill.
One I am working on at the moment has two services and two meters. One to supply two 240 Kw Boilers that I installed and one to supply another Small Boiler in another part of the mill. Not on the same floor though. Both services are on same side of Building.

 

[firemant]

Can't remember whether that one did but I know of others that have two separate service pipes. Normally large buildings such as a mill.
One I am working on at the moment has two services and two meters. One to supply two 240 Kw Boilers that I installed and one to supply another Small Boiler in another part of the mill. Not on the same floor though. Both services are on same side of Building.

Well, I obviously am not going to dispute your experience, but I guarantee that my earlier statement was true in Leicester, 3 years ago.

 

[Last Plumber]

Well, I obviously am not going to dispute your experience, but I guarantee that my earlier statement was true in Leicester, 3 years ago.

I'm not saying you're wrong either. I believe you. 100%.

In this Mill there are no labels mentioning the existence of another service or meter on either of them so if there was a smell of Gas, who would know about the other Meter or ECV? There are over 100 people who use this mill. They should be labelled in my opinion, or not allowed.
I have worked at this Mill for 7 or 8 years and only found out that there was another meter late last year.
The owner rang and asked me to alter the pipe work because The Meter had been changed and the installer of it told him that it should not have a flex on the outlet side.
I knew the Meter was piped rigid in 2 1/2" steel. On arriving, he took me to the other meter, the one I new nothing about.

Surely Nat Grid have records of both Meters? Maybe not. I would not be surprised if they didn't.
I don't know of any regulation that states there should be no second service into a building but that does not mean there isn't!

I am just going off the Buildings I have been in during my working life and what I have come across. I have never looked it up.
I need to dig deeper now!

 

[bacon_sandwich]

Pressure is off, client has accepted U65. He looses a car parking space but otherwise all good. Existing U16 set up will be de-commisioned, which was my preferred option anyway. The existing U16 was too small for all loads on at the same time, pressure was way too high and it was one of those installations where your immediate reaction was jesus who let this one through the net.......lol