What is that pipe sticking out of wall below the boiler flue? **SOLVED**

wazza

I have seen this in several houses. I assume it is for combination boiler. On the outside wall below the flue/exhaust outlet of the boiler is a copper (15mm?) water pipe which is a simple u-bend sticking out as if checking the outside temperature.

What is it? If it contains water won't it freeze in the winter?

closed

pressure relief outlet.

keystone

closed wrote: »

pressure relief outlet.

Quite and it shouldn't contain water so it won't freeze.

Cheers

wazza

closed wrote: »

pressure relief outlet.

This outlet, i take it the pipe sticks out and any excess pressure is released to outside?

The one i am refering to is like a copper pipe coming out of the wall and joining a 180* bend and and then going back into the wall. Is this a pressure relief outlet?

keystone

Oh - you didn't say that before.

1. Trace it internally - where does it come from and where does it go to?

2. Post a pic please.

Cheers

ormus

its a safety measure. it faces the wall, to protect passers by.
if/when the hot steam/water blows off.

Chunks

My set up is idential to your description and is (as stated) the pressure release outlet.

Wondered myself why it is bent back to the wall - reading ormus' explanation, it now makes sense.

macman

So it doesn't re-enter the property at all.

ormus

not a good example.

you get one guess as to who fitted this one?

yes you win, it was BG!

wazza

keystone wrote: »

Oh - you didn't say that before.

1. Trace it internally - where does it come from and where does it go to?

2. Post a pic please.

Cheers

Unfortunately i do not have access to the inside of the property.

Will post a pic soon when i am in the area

wazza

ormus wrote: »

its a safety measure. it faces the wall, to protect passers by.
if/when the hot steam/water blows off.

this one goes back into the property

will post a pic in the next day or so