Should my presure relief valve really be leaking that much ?

[freestyle]

Had my new combi boiler for 4 months or so.

I've noticed while in the shower that I could see what looked like large drops of water passing the outside window.

Today for the first time it was not dark while I was in the shower, and I noticed so stuck my head out.

There was a considerable steady stream of water (assuming hot) coming from the pipe which was finished in a hook to the outer wall.

This continued until I switched the hot water off, and let the boiler cool down for a few mins.

It seems that it happens often, when I have the heating on and then take a shower.


Looking through the manual, it says
"The pipe may leak hot water........"
"The pipe should not be positioned about a door or window"

I live in a flat and the pipe IS above my window (that's why I saw it in the first place).

Should I call the installer back ?
Is something going really wrong for this to happen so often ?
How should that pipe be positioned for a first floor flat ? Should it have a drain run-off ?

 

[EliteHeat]

Is the pipe where the water is coming from copper or plastic?

 

[compheat]

Check the pressure at the boiler, If it is set to high (2.5+) when it is cold then when the boiler is on the temp/pressure will rise The PRV opens at 3bar. Check to make sure the filling loop is closed properly.

 

[ibruceuk]

To me it sounds as though you're describing the condensate drain. If it's been happening any time you use HW or CH and you have never needed to re-pressurise the system.

I'm not a plumber but shouldn't a condensate drain be directed into a soil stack or a soakaway??

 

[freestyle]

Thank you for the replies so far.

There is a plastic pipe (which goes direct to the drain)

Looking in the manual, it indicates the copper pipe with a bend it for presure release

I think its 1.5bar the last time I checked. Will look in the morning after its been on over night

 

[corgiman]

must be either the filling loop left open or te expansion vessel

its defo not your condensate pipe.