Smoke leak on stove Pellets. Find the leak of a chimney (with earthenware bushels)?

[Lolounette]

take advantage of a promo on lemon Paic and water guns


yes with stove on, it was implicit

[sicetaitsimple]

Must be distinguished:

a) the natural draft of the chimney, which is pretty good in my case ...

b) the forced draft of the pellet stove which creates a suction in the fireplace and a (slight) overpressure in the chimney. This is why the pellet stove ducts must be waterproof especially in the interior and in the absence of natural draft ... (Many pellet stoves installed with a chimney 2 m ... some even in sucker!)

The vast majority of pellet stoves have a forced draft to control combustion and power ...

Sorry, I understood that it was in natural draft, therefore "normally" in depression all along. This was if I understood correctly the case with your old boiler.

Of course with a blower at the exit of the stove that puts part of the circuit under pressure, it's another story ....

Your pipe 125 which I understood he was inside the bushels, you're sure he is not eaten?

[Christophe]

Well, pan on the way, I tested the soap method on a few joints ... it did not work where I tested and I do not have access to much ..

But by doing that, I found 2 leaks (easy to find: it's the place where it stings the most ... ) it is at the level of the repair against the wall of the house brief where it is the least accessible ...

So it will be galley but I will add a good layer of refractory mortar tonight to these places and everywhere I think it is necessary ...

And appointment tomorrow night when restarting with 24h drying ...

[Christophe]

Sorry, I understood that it was in natural draft, therefore "normally" in depression all along. This was if I understood correctly the case with your old boiler.

That's it and at the time no worries ... but if the 2 leaks that I just saw were already there at the time that limited the draw at the time ...

Of course with a blower at the exit of the stove that puts part of the circuit under pressure, it's another story ....

Your pipe 125 which I understood he was inside the bushels, you're sure he is not eaten?

Not on no, but it does not really have a sealing function, just to speed up the flow and make cleaning easier ...

I'll let you know after setting up the mortar tonight ...

This is the location of 2 leaks:

chimney_horizontale.jpg (265.82 Kio) Viewed 3784 times

The one on the right is the first picture before it's really, really, reduced and difficult to access (that's why nothing is really right) and so I do not know what I'll be able to do with the mortar...

[Christophe]

If I do not go out with the mortar ... I thought I was using some expansive PU foam ... if it's far enough from the chimney flue it should not?

With a pellet stove there is no risk of fire but if one day a stove is handed over it is better to avoid the use of PU ...

[Ahmed]

On your last picture, we see a plaster application: maybe that's what you should try ...

[Christophe]

Where do you see plaster?

Plaster is what I was advised to do to waterproof bushels of terracotta: plaster in old rags (which will remain in place) at the junctions ... I may put some for " finalize "the whole ...

For the reinforcement of the joints I still have refractory mortar, so I will use it ...

ps: aeraulically or "smoke", the leaks are finally understandable at this level (it is the worst place of the chimney to think about it), the section of the vertical part of the chimney is less important than that of the repaired part. ..and the elbow is not terrible either ... so it is certainly the part of the chimney that is the most "under pressure" (and inevitably it is here that there are holes .. .) ...

[Ahmed]

Where do you see plaster?

In the upper right part of the last photo, there are "drips" of plaster blackened by smoke ...

[sicetaitsimple]

Plaster is what I was advised to do to waterproof bushels of terracotta: plaster in old rags (which will remain in place) at the junctions ... I may put some for " finalize "the whole ...

For the reinforcement of the joints I still have refractory mortar, so I will use it ...

You can spread mortar or plaster to spend the heating season, it is certainly also what I would do.

But then, it seems to me prudent to have all of this reviewed by a fire specialist, a real one, not me! Do not mess with that kind of thing.

[Christophe]

In the upper right part of the last photo, there are "drips" of plaster blackened by smoke ...

Ah, it's plaster for you?

In my opinion it's more like cellular concrete glue (look behind: it's a block of cellular concrete) ...

That this is blackened by the smoke is finally a clue ...