Gas pipe installed on the outisde of house...

[GeorgeOz]

Hi there,

I am a little concerned regarding a gas pipe that runs on the outside of my house... The pipe comes off of the meter, straight outside and then runs along the side of the house tees in for the cooker and carries on round the back of the house and then back into the house just under the combi boiler.

It isn't insulated or anything just bare copper. Is this something to worry about or is this normal practice? SHould it be insulated etc, etc?

The pipe is running about 3-4ft high along the side and back of the house.

 

[RGII79]

Once its bracketed correctly and sleeved where it enters through wall to cooker and boiler it would be fine .no need for insulation on gas pipe
one thing would be that if the pipe is in an area where it could be damaged by collision it shud be guarded by trunking or metal guarding

 

[albatross]

Good point. Natural gas will freeze if it gets to -182.5 degrees C.

 

[GeorgeOz]

Good point. Natural gas will freeze if it gets to -182.5 degrees C.

haha, now that is a good point, cheers! :stupid: :mad2:

 

[gasmanrob]

Good point. Natural gas will freeze if it gets to -182.5 degrees C.

And is super compressed

 

[IDCHAPPY]

I'd best go insulate me gas pipe then :lol:

 

[Ermintrude]

No no no get gas as cold as possible it's boyles law. Higher calorific content at low temps.

 

[spanner]

haha, now that is a good point, cheers! :stupid: :mad2:[/QUOT

:carolers:

 

[johnnyplumb]

No no no get gas as cold as possible it's boyles law. Higher calorific content at low temps.

is that frankie boyles law ermi ?

it's charles law and you want to increase the gas temperature not decrease it, that way you might get
some gas for free :wink_smile:

pressure would need to be constant though.

 

[Ermintrude]

P=nRT?

 

[Simon F]

[DLMURL="http://www.elmhurst.edu/~chm/vchembook/501hcboilingpts.html"]Hydrocarbon boiling points[/DLMURL]

for the gas to freeze it first has to be cooled to the point of becoming liquid.
this happens at -164 degrees centigrade, so keep an eye on the forecast and act accordingly.

 

[sheff paul]

Hi there,

I am a little concerned regarding a gas pipe that runs on the outside of my house... The pipe comes off of the meter, straight outside and then runs along the side of the house tees in for the cooker and carries on round the back of the house and then back into the house just under the combi boiler.

It isn't insulated or anything just bare copper. Is this something to worry about or is this normal practice? SHould it be insulated etc, etc?

The pipe is running about 3-4ft high along the side and back of the house.

To give a different slant on this ,in a lot of new build flats the gas run is external now as this is the preferred option,no internal boxing which needs vents in it,if it leaks it will not cause an immediate risk.

 

[village idiot]

Quite true S Paul. I attended a property in Esher last week. It was a New Build (Three Yrs Old) and had a massive leak. Must have been leaking from installation date, at meter union elbow. Good thing Gas Meter was outside, boiler in garage and only gas pipe into property was less than a meter to kitchen hob

 

[djob]

I work on new builds, and the gas pipes on the flats run right down the outside in downpipes & that's only because the developer think it looks more pleasing to the eye :/

 

[village idiot]

I work on new builds, and the gas pipes on the flats run right down the outside in downpipes & that's only because the developer think it looks more pleasing to the eye :/

Chances are the Developer doesn't want the gas pipes stolen. all that nice shinny copper, imagine the temptation:vanish:

 

[AWheating]

my mate johnny scumbag loves external copper pipe runs, especially ones that are adequately clipped, they just fall into the swag bag.

 

[AWheating]

I work on new builds, and the gas pipes on the flats run right down the outside in downpipes & that's only because the developer think it looks more pleasing to the eye :/

in downpipes or behind them?

 

[kirkgas]

Djob how do you secure a gas pipe inside a down pipe

 

[Gray0689]

in downpipes or behind them?

And how do you check joints lol

 

[sheff paul]

I work on new builds, and the gas pipes on the flats run right down the outside in downpipes & that's only because the developer think it looks more pleasing to the eye :/

how do you clip em if there in down pipes

 

[gassafe]

Your buggered when the next next guy tees the boilers condensate into the down pipe... All that corrosive water on the gas pipe ;p

 

[djob]

Clipped on the horizontal over to the downpipes and the downpipes notched at the back.. Gas pipe clipped and the down-pipe is then extended until the next clip with a coupling. The gas pipe is protected with yellow coating. The down-pipe doesn't connect to a gutter it is capped off to the elements

 

[djob]

Chances are the Developer doesn't want the gas pipes stolen. all that nice shinny copper, imagine the temptation:vanish:

Yes for both reasons safety and visuals.. I installed 10 flats worth of gas pipes externally took me the whole day.. Looked amazing until I came on site the next day to find it all stolen.

 

[AWheating]

Clipped on the horizontal over to the downpipes and the downpipes notched at the back.. Gas pipe clipped and the down-pipe is then extended until the next clip with a coupling. The gas pipe is protected with yellow coating. The down-pipe doesn't connect to a gutter it is capped off to the elements

so the copper gas pipe is clipped to the correct distances with pipe clips and then the downpipe sits ontop of it? with the weight of the downpipe on its own clips?

 

[sheff paul]

Clipped on the horizontal over to the downpipes and the downpipes notched at the back.. Gas pipe clipped and the down-pipe is then extended until the next clip with a coupling. The gas pipe is protected with yellow coating. The down-pipe doesn't connect to a gutter it is capped off to the elements

ahh wondered how you did it

 

[djob]

And how do you check joints lol

To check joints is a bit of a hassle but if needed all are accessible..

 

[djob]

so the copper gas pipe is clipped to the correct distances with pipe clips and then the downpipe sits ontop of it? with the weight of the downpipe on its own clips?

Yes I clipped the 28mm pipe every 2.5m using Munson Rings.. & all the downpipes is adequately clipped aswell.

 

[djob]

Yes I clipped the 28mm pipe every 2.5m using Munson Rings.. & all the downpipes is adequately clipped aswell.

in downpipes or behind them?

In the downpipes

 

[AWheating]

must be a pain to cut the downpipe, do you use a grinder?

ive done simular work in the past but we just fitted downpipes infront of gas pipes.

 

[djob]

Yes I clipped the 28mm pipe every 2.5m using Munson Rings.. & all the downpipes is adequately clipped aswell.

must be a pain to cut the downpipe, do you use a grinder?

ive done simular work in the past but we just fitted downpipes infront of gas pipes.

Yes I used a grinder, I would've liked to do it the way you have much I sadly don't get much of a say

 

[spanner]

Yes I used a grinder, I would've liked to do it the way you have much I sadly don't get much of a say

what are you doing.. you can not be serious man.. the pipe would fall off ..

 

[djob]

what are you doing.. you can not be serious man.. the pipe would fall off ..

I have no reason to log into my account to post lies.. I did 6 flats worth last Fridays & given the 80/90mph wind we've had recently I can confirm they're still there intact as I put them.

 

[spanner]

I have no reason to log into my account to post lies.. I did 6 flats worth last Fridays & given the 80/90mph wind we've had recently I can confirm they're still there intact as I put them.

Okay .. goodnight

 

[djob]

Okay .. goodnight

I understand what you're saying, it's a very stupid way to-do it & I suppose unless you've done it then it just sound ridiculous.

 

[heliotrope]

Yes :rolleyes2: