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Gas Works

Gas leak of 2mb

Anonymous user 18/02/2024 - 2.30 PM

The engineer came to service my boiler and advised that the case was broken and I needed a new boiler with this one being switched off. After going under the cupboard to the gas supply in house he said I have a gas leak. After pulling out the gas oven he advised no leak there on hob. He has capped off the gas supply in side. As far as leak he has said it’s under floor and suggested switched the gas hob and oven to electric to resolve problem. Also need new boiler. I have read that 2mb gas leak is under 4 and permissible? Is this correct. If I have a new boiler can I reconnect the gas oven and hob and will all be resolved? Appreciate any advice as do not want to have to buy new appliances if not necessary. No smell of gas and my detector which is in house has always read at zero

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4 Answers

LG Mechanical & Electrical Ltd

Rating: 5 out of 5
Manchester
Hi, If you have gas meter of G4/U6 and pipework not greater than 28mm in diameter then you are allowed up to 4mbar gas pressure drop providing there is no smell of gas. If you have gas meter E6 then 8mb is allowed with no smell of gas. However we would always recommend to get gas drop investigate and fixed. For more information please Technical Bulletin TB-110 on Gas Safe website. As to boiler case being damage/broken is difficult to say without seeing photos of damages to the case and not knowing boiler make and model. Detector you are referring to is CO alarm, will show you how many carbon monoxide particle per million, is in your room, in case CO not being flueing correctly to outside, but instead escaping to inside of the house. Hope this helps. Greg @LG M&E Ltd
Answered17 September 2023
6

MLA Plumbing And Heating

Rating: 4.8 out of 5
Skegness
2mb does usually fall inside permissible but the engineer installing the new boiler won't be able to commission and sign it off due to a gas leak over 1mb. I'd suggest finding out where the leak using a separate engineer. That engineer will then inform you of your options moving forward. Maybe just leak detection and a boiler cover is needed.
Answered17 September 2023
1

Smart Heating Services

No reviews yet

Hailsham
I agree with that statement but would add that you are allowed 4mbar drop with appliances connected. If you are testing the pipe work with appliances isolated then you are not allowed a drop in pressure. You can not connect a new appliance to existing pipe work that has a drop of pressure.
Answered7 October 2023
0

Heatfix

No reviews yet

Luton
It sounds like your engineer has identified a gas leak on your pipework. No leak is is permissible on pipework new or existing. A new gas run would be required to fix this. Permissible drops are only ever allowed with appliances connected without a smell of gas.
Answered7 October 2023
0