Gas pipe on external wall

cherry76

Thanks, agree with you regarding the above. External is the best although pipe will look ugly & I have also some residents pigeons which make a mess there. Neighbour's hobby is pigeon racing. The house is also secured.

Avoriaz

cherry76 wrote: »

Is it common and safe to put gas pipe on external wall.

Yes. Or it was in 2003 anyway.

All our gas pipes were buried under the floor until we had a gas fire installed in 2003.

The fitters ran a new pipe from the gas meter in the garage, high up along the internal garage wall (which is the external wall of the house), down the internal corner and out the rear of the garage and then low down along the external wall of the living room for a few meters before entering the house behind the fire.

This was the shortest and easiest run. They did a very neat and professional looking job.

I was a bit concerned about the exposed run but they assured me that it was safe and standard practice.

I checked this and they were correct.


Edit: I've just had a look at it.

They fitted an isolation tap just before it exits the garage, sleeved the pipe in a larger diameter pipe where it passes through the walls, and reduced the pipe diameter progressively as it nears the fire. The larger diameter pipes nearer the meter end presumably reduces pressure loss or restricted flow issues.

You should check that you are getting an isolation tap and that the pipe is sleeved as it passes through brickwork if these are recommended.

You will need large diameter pipe all the way to feed a boiler. My fire is only about 7 kws. Your boiler will be many times that.

chrisjw37

I'd box it in if they do that
in case it gets damaged

personally - it would be a no, we ran it under the floor aboves floor boards and then don 12 inches.

Much safer

Avoriaz

chrisjw37 wrote: »

I'd box it in if they do that...in case it gets damaged..

I could do that but the likelyhood of damage is very remote.

If you saw the location you would see how relatively safe it is.

I do have an old pallet leaning against the wall that protects most of it.

ormus

the gas supply to the domestic boiler is nearly always 22mm. its all about flow rates.
commercial properties will have even larger pipes.
same goes for the CH pipes. large installations, will require 22mm or even 28mm for the main runs, with smaller sections in 15mm.

caveman1

its ok to do, looks a mess but is cheaper.