Gas pressure question

[Wormwood]

I've had a tech survey for a new boiler and they reckon the gas pressure (at the boiler) is too low. Could this be caused by an old/knackered gas meter?

My meter is a 1985 Parkinson Cowan. National Grid put a new regulator on and the pressure immediately went up by 4mbar - but they didn't change the rest of the meter (i.e. the big bit ).

TIA.

 

[ShaunCorbs]

Do you know what we're the pressures ?

 

[Wormwood]

Thanks for the reply Shaun.

I think they were 19mbar before the regulator change and 23 after it.

 

[ShaunCorbs]

Thanks for the reply Shaun.

I think they were 19mbar before the regulator change and 23 after it.

That would be standing and can't see the meter affecting that much as there designed to give no restriction or very little

Would say it's down to pipework from the meter

May I ask what's your existing boiler and whats the new one your looking at ?

 

[Wormwood]

What could be wrong with the pipework? The existing boiler has run perfectly happily with it for 30 years.

I don't know what the new boiler will be.

 

[ShaunCorbs]

Could be a bigger kw requiring more gas hard to say really

 

[Wormwood]

Could be a bigger kw requiring more gas hard to say really

No, they said it was too low regardless of the boiler's kw. They reckoned a 22mm pipe would give more mbars.

 

[ShaunCorbs]

No, they said it was too low regardless of the boiler's kw. They reckoned a 22mm pipe would give more mbars.

Yes we're only allowed max 1.5 mbar drop from the meter to the appliance working

 

[Wormwood]

Yes we're only allowed max 1.5 mbar drop from the meter to the appliance working

By 'appliance working', do you mean the measuring device (e.g. this one) is connected to the boiler itself, while the boiler is running?

 

[townfanjon]

What could be wrong with the pipework? The existing boiler has run perfectly happily with it for 30 years.

I don't know what the new boiler will be.

You would not have known .