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cm999
Junior Member
Joined: 11 Apr 2008
Posts: 20
Location: Near Gainsborough
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 Posted: Tue Aug 19, 2008 9:01 am Post subject: Gas Supply In Wall |
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Sorry no pic's with this!
In my job as a firefighter we got called to a gas leak yesterday, turned up at the address, all windows were open and distraught owner with family outside.
Turns out he had been doing some DIY in his house involving cutting chases in a wall, he said he had checked for electric cables but not for pipes as there were no rads/taps nearby, however haflway through his cutting there was a loud hiss and a strong smell of gas!!!!!!!!!!!!!!!
He had cut straight through his gas supply, luckily with no ignition.
However what we did find was that this pipe was actually chased into the wall, is this right??????
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5665
Location: Bath
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| Posted: Tue Aug 19, 2008 9:26 am Post subject: |
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I bet you could tell a thousand and one stories like that 
Perfectly legal provided the pipe is protected from corrosion.
Interesting you mention the ignition, had it caught fire it would have resembled an very large blowlamp, it would only go bang when the correct air/gas ratio was present and then ignition.
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cm999
Junior Member
Joined: 11 Apr 2008
Posts: 20
Location: Near Gainsborough
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| Posted: Tue Aug 19, 2008 9:41 am Post subject: |
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Loft insulation/spotlights is another favourite!!!!!!!!!!!!
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5665
Location: Bath
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| Posted: Tue Aug 19, 2008 9:50 am Post subject: |
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Damn halogen things you mean 
I don't think many people realise how well some loft insulation burns, or come to that most some pipe insulation
Thick black acrid smoke comes to mind.
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Scruff |
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cm999
Junior Member
Joined: 11 Apr 2008
Posts: 20
Location: Near Gainsborough
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| Posted: Tue Aug 19, 2008 12:26 pm Post subject: |
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And also paint removal with blowtorch on windowsill without removing curtains  !!!
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Hoovie
Devon DIYer
Joined: 27 Jul 2007
Posts: 8036
Location: East Devon
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| Posted: Tue Aug 19, 2008 12:32 pm Post subject: |
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CM999 - have you been watching me at work 
 
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Jaeger_S2k
Senior Member
Joined: 19 Nov 2006
Posts: 2786
Location: North West, England, United Kingdom
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| Posted: Tue Aug 19, 2008 9:49 pm Post subject: |
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 CM999,
Dad was a 'Smoke Eater' and a Gas Fitter, served 28 years.
Quite legal fitting, can't imagine what he used to check for cables with as the gas mains would have made any cable/joist locator 'light up'.
The ignition would have taken his eye brows off and maybe some hair but no 'Big Bang' as scruff says only with build up and correct mix.
Incidentally you can also create a substantial explosion with the correct mixture of sugar in the air
But it's highly unlikely
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Telmay
Senior Member
Joined: 09 Mar 2007
Posts: 2469
Location: Worthing, West Sussex
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| Posted: Tue Aug 19, 2008 9:54 pm Post subject: |
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Any powder in the air can give you quite a bang if its ignited
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thescruff
Senior Member
Joined: 10 Mar 2008
Posts: 5665
Location: Bath
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| Posted: Tue Aug 19, 2008 9:56 pm Post subject: |
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| Jaeger_S2k wrote: |
CM999,
Dad was a 'Smoke Eater' and a Gas Fitter, served 28 years.
Quite legal fitting, can't imagine what he used to check for cables with as the gas mains would have made any cable/joist locator 'light up'.
The ignition would have taken his eye brows off and maybe some hair but no 'Big Bang' as scruff says only with build up and correct mix.
Incidentally you can also create a substantial explosion with the correct mixture of sugar in the air
But it's highly unlikely |
And flour
You saying about the joist locator jags, perhaps it was plastic pipe
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Steve the Gas
Senior Member
Joined: 30 May 2008
Posts: 794
Location: Notts/Derbys
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| Posted: Wed Aug 20, 2008 4:18 am Post subject: |
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Plastique  |
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Jaeger_S2k
Senior Member
Joined: 19 Nov 2006
Posts: 2786
Location: North West, England, United Kingdom
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| Posted: Wed Aug 20, 2008 10:26 pm Post subject: |
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Plastic in a wall 
That's just asking for someone to cut through it with a wall chaser.
Should have had a marker with it
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Jaeger.
"Does my bum look BIG in this?" Wit's a Ba' Hair in Metric?
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sparkydude
Approved Electrician
Joined: 13 Aug 2005
Posts: 942
Location: Staffordshire
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| Posted: Thu Aug 21, 2008 7:49 pm Post subject: |
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Just saw this topic and have a similiar sort of query, my gas pipe is run on the surface of my porch wall, i am proposing to insulate the porch wall and plasterboard it , should i put a metal plate in the wall to protect the gas pipe or how should i proceed with protecting it, i dont really want a floor to ceiling access panel in my porch .
Nick
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Jaeger_S2k
Senior Member
Joined: 19 Nov 2006
Posts: 2786
Location: North West, England, United Kingdom
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| Posted: Thu Aug 21, 2008 8:55 pm Post subject: |
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| sparkydude wrote: |
Just saw this topic and have a similiar sort of query, my gas pipe is run on the surface of my porch wall, i am proposing to insulate the porch wall and plasterboard it , should i put a metal plate in the wall to protect the gas pipe or how should i proceed with protecting it, i dont really want a floor to ceiling access panel in my porch .
Nick |
Hi Nick,
Just run a marker, 1mm or 2.5mm single will do, follow the pipe and it'll react to a stud cable detector and warn of a hidden service 
A foil strip will do the same but I'm sure you'll have a piece of cable handy?
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Jaeger.
"Does my bum look BIG in this?" Wit's a Ba' Hair in Metric?
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