gas pipe in stub wall battened off

[bernardgreen]

And half full?

Gas heavier than air might result in stratification if there is nothing to distrub the gas and / or air. Bottom half of the room the match goes out. Upper half of the room the match burns away. Anyway near the boundary layer. Good bye room.

 

[Dan Robinson]

Few structures are totally sealed.

 

[picasso]

You are worrying about nothing, as I said before two battens, something to protect the pipe from damage and cover the channel and forget about it, if its not leaking gas when you cover why would it suddenly develop a dangerous leak ?

 

[Dan Robinson]

And half full?

Gas heavier than air might result in stratification if there is nothing to distrub the gas and / or air. Bottom half of the room the match goes out. Upper half of the room the match burns away. Anyway near the boundary layer. Good bye room.

Ignore stratification and boundary layers for now...

If the room was half full of gas and half full of air - what happens?

 

[Agile]

And half full?

Gas heavier than air might result in stratification if there is nothing to distrub the gas and / or air. Bottom half of the room the match goes out. Upper half of the room the match burns away. Anyway near the boundary layer. Good bye room.

Yes, but natural Gas is lighter than air and in any case at some point in the room the mixture will be between the LEL and UEL and thus very flammable!

Those who were talking about space between battens seem to have forgotten that if there was a gas leak then as the gas comes out and mixes with the air there will be a point where the mix will be between the LEL and HEL and thus flammable!

Tony

 

[picasso]

Those who were talking about space between battens seem to have forgotten that if there was a gas leak then as the gas comes out and mixes with the air there will be a point where the mix will be between the LEL and HEL and thus inflammable!

Tony

So what do you suggest for gas pipes in stud walls (ignoring the fact that this is how its recommended bs 6891)

 

[Riley26]

You are worrying about nothing, as I said before two battens, something to protect the pipe from damage and cover the channel and forget about it, if its not leaking gas when you cover why would it suddenly develop a dangerous leak ?

Thanks.I can tend to over think things and worry

 

[Agile]

Putting the pipe between battens is an acceptable way to take a gas pipe along a plasterboard wall.

I was only saying what would actually happen if gas leaked from the pipe.

Tony

 

[Riley26]

There is a socket in the stud wall about 10inch away, however I have but a batten in to block this off. Is this still acceptable?

 

[Dan Robinson]

Sounds like it. Need a picture really.

Have you given up on your little bit of homework?

 

[Agile]

Its generally considered inadvisable for a DIYer to install gas pipes and can invalidate house insurance etc.

Furthermore many gas appliances are Controlled Appliances and need to be advised to Building Control by a gas reg person who installed them!

Tony

 

[footprints]

I wondered how long it would be before the discussion degenerates into what makes someone competent to work on gas / DIY, I think we will be getting there any moment.

 

[Dan Robinson]

As far as I can tell the OP is working with an existing pipe. Tony is off on one of his tangents and Bernard is trying to free think his way around pretty simple and clear cut rules.

 

[Agile]

The reality is that we don't know if this is an existing gas pipe or not. The OP has not made that very clear.

I only made a general statement about DIY gas work.

Tony

 

[DP]

Yes, but natural Gas is lighter than air and in any case at some point in the room the mixture will be between the LEL and UEL and thus very inflammable!

Read more: //www.diynot.com/diy/threads/gas-pipe-in-stub-wall-battened-off.441303/page-3#ixzz3kgZF0chc

Tony, gas is inflammable above UEL too