Wet wall corners when heating is on ?

[Links2]

Hey all,

Just looking for some advice. I’ve noticed whenever I turn my boiler on which is located upstairs, after about 20 or so minutes of it being on two of the wall corners in my living room or soaking wet to the touch. It’s the same wall this happens on at opposite ends and it’s the wall that connects us to our neighbours. Was wondering if it could be a boiler system link as this is the only time it occurs and the wall is just getting drenched?

Any help is massively appreciated,

Many thanks

 

[blup]

There may be pipes above the ceiling or buried in the wall, the pressure from the boiler pump (or gravity) triggers a pinhole leak. Check under floor boards upstairs first, the source may be some way from where the leak manifests itself.

Blup

 

[JohnD]

It's also possible that the heat is evaporating water out of something due to heat, for example if pipes are embedded in a damp floor, or wet washing is draped on a radiator, and it is rising (water vapour is lighter than air) and condensing above.

To identify condensation, tape clear plastic or clingfilm tightly to the wall. If moisture appears on the room side, it is condensation from the air. If it appears on the wall side, it is damp from the wall.

It is even possible that boiler fumes or condensate are leaking inside the house.

 

[JohnD]

********************************

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Wet walls when heating goes on

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Which of the suggestions from last time did you look into?

*************************************************************

 

[Elkato531]

If it only happens when heating is on it is most likely the condense drain pipe from the boiler. Check underneath the boiler for a plastic pipe and see if that's where the leak is coming from. Technically, its part of the flue system so needs to be looked at by someone who is gas safe registered.

 

[RrogerD]

********************************

I see you mentioned last winter

that your boiler leaks

Drips of water from bottom of baxi boiler

Evening all, Noticed that our boiler seems to be dripping from the bottom of the boiler itself. It’s a baxi boiler that was in when we moved in and looks very old. We’ve noticed it leaks sometimes when boiler is on and sometimes when it’s off it can go a while though we no leaking at all...

www.diynot.com

And you have rain leaks

Leak coming into boiler cupboard

Good morning, just after some advice. During some heavy rain last night I noticed we have a few leaks coming from above the boiler and into the boiler cupboard it’s self, the trips are just falling down onto the boiler unit itself , any idea where the water could be coming from? It’s stopped...

www.diynot.com

And you have wet walls.

Wet walls when heating goes on

Hey all just looking for some advice. I’ve noticed that every time I put my heating on the corner in my living room becomes wet to touch. Any idea what could be causing this ? TIA

www.diynot.com

And damp

Damp outdoor wall

Hey all just looking for any help / advice! The corner of the outdoor wall below is wet and causing the corner on the opposite side of the wall on the inside of the house to become wet too! Any advice on how I could dry and outdoor wall at all ?

www.diynot.com

And persistent damp

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Hey all just wondered if anyone had any tips on removing black mould from a painted bathroom ceiling? Any advice is massively appreciated

www.diynot.com

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Evening all, Recently moved into a new property and discovered that two corners in the living room are wet to the touch right at the bottom corner, this is on the wall that connects us the our neighbours. In the spare bedroom which is directly above one of the corners we also have a wet...

www.diynot.com

Which of the suggestions from last time did you look into?

*************************************************************

Very interesting.
Not wishing to be derogatory and accusational but, I've seen some pretty extreme condensation issues in my time. I do wonder if something like this is occurring. Sometimes people just do not realise causes and effect.

Can the OP please send some wide-shot photos of the whole room?

 

[jurassic sparkk]

Is this a wind up?

 

[jurassic sparkk]

Technically, its part of the flue system so needs to be looked at by someone who is gas safe registered.

Not always. Modern boilers have condensate traps that are easy to clean, without removing the cover.

 

[Madrab]

Not always. Modern boilers have condensate traps that are easy to clean, without removing the cover.

Really, which ones? Cover from what, the boiler or the trap?

All condensate traps I've come across are connected to the base of the combustion chamber by a hose/pipe, so when the traps are emptied they are, in effect, exposing the pipe that connects to that chamber, if that isn't fitted back on correctly or the trap not filled then that could allow POC's to escape, possibly into the room if a tundish is fitted. If the condensate drain pipe is manipulated and it causes a problem with the trap connections then that could also allow POC's to escape. A DIY'er may not know this. Risk is pretty low but not 0 and would normally be cleaned when the boiler is serviced every year.