Gas pipe length issue

[Grandalpha]

Hi hope someone can advise, we have had a new gas main and U6 meter installed at the bottom of the garden (think its a 28mm gas main to the meter from a large mains pipe 6m away)with a 32mm plastic gas pipe going to the house from the meter on a 45m run with three long bends. The gas is supplying a 45kW condensing boiler. Gas pressure 21milbar at boiler when off but drops to 10mibar when on, so boiler shuts down.
I seem to have two choices either have the meter moved closer to the house or upgrade the meter.
Moving the meter to the house would be a lot of work and expense but would installing a U16 meter do the job.
OR is there a third option? like a booster pump
Not looking for comments on who did what wrong just need third party advice so i can make an informed decision when listening to the other parties involved.
Many thanks
Nigel

 

[Dan Robinson]

Upgrading the meter will do squat.

 

[Dan Robinson]

You need either an engineer with commercial tickets to install the correct sized pipe from the meter.

Or move the meter.

 

[Dan Robinson]

Not looking for comments on who did what wrong just need third party advice

You'll get what you're given.

Gas pressure 21milbar at boiler when off

That is irrelevant. We need the working pressures at each end.

 

[durhamplumber]

How come it was commissioned and left like that?

 

[Dan Robinson]

Not looking for comments on who did what wrong just need third party advice

You'll get what you're given.

How come it was commissioned and left like that?

See what I mean

 

[bernardgreen]

OR is there a third option? like a booster pump

Third option is to use a less powerful boiler ( not a combi ) and a hot water cylinder.

 

[Grandalpha]

Thanks Dan, guess i had that coming, moving the meter it is then.

 

[durhamplumber]

I would be more interested in figuring out why I had spent lots of money and ended up in this situation rather than just throwing more money at it

 

[Grandalpha]

Third option is to use a less powerful boiler ( not a combi ) and a hot water cylinder.

That could be an option

 

[Hot&Cold]

Can i ask why a 45kw boiler was chosen ?

 

[Grandalpha]

Can i ask why a 45kw boiler was chosen ?

It's a six bed house, the person involved is no longer on the job, we have underfloor heating in a new build and that requires 17kw max load and five bathrooms and have a 300L unvented cylinder. I'm now looking at best way forward but want some information before finding someone to take over.

 

[Dan Robinson]

Unvented cylinder and a combi? Are you not confusing it with a condensing system boiler?

Even if you dropped down to an 18kW system boiler (which sounds like it would be plenty) you are still going to have problems over those lengths.

Moving the meter would probably be the cheapest option.

 

[Grandalpha]

its a condensing system boiler not a combi, yes i think moving the meter is the safest option

 

[PullerGas]

DIY gas work warning!!
Mods please remove.