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

[Christophe]

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.

I do not think any man of fire will repair that for a reasonable price ... the building is done in a 40 cm reclining space ...

Otherwise I thought we were pros here me!

Good go I go there ... evening mortar refractory ... Awesome

[Christophe]

Good go I go there ... evening mortar refractory ... Awesome

Pffffuuuuuuuuuuuuuuuuu it took me more than 2h ... lying in the dirt ... the intervention was worse than I thought ... I had to disassemble the whole right because it was wobbly! I had to repair to the blind while touching ...

Small photo report!

The right part moved a lot, I decided to turn everything to start on a healthier basis ... I did not need a tool to remove the blocks ... it is to say that it was afraid! So there were leaks on this level suddenly!

At the access level, the refractory bricks are 60 mm thick, for you to locate the dimensions ...

right_a_demonter.jpg (471.68 Kio) Viewed 4247 times

We see that I did not do that well at the time, it lacks mortar!

As the chimney was "open", it allowed me to take a picture of the galvanized ducting of the duct (blind please), I would try to remove the dirt from the repair through the chimney sweep later. .

I also benefit as it is dismantled to take a picture of the conduit (bottom right is the access of the hatch sweeping):

droit_demontée_conduit.jpg (442.18 Kio) Accessed 4247 times

Result after almost 2h on the right side (to fumble with the hand in the dark ... I do not say that I do not like groping in the dark but not with mortar full of the fingers ):

The left part was easier, some joints to strengthen only:

left_fini.jpg (485.68 KIO) Viewed 4247 times

Before the operation and especially when the chimney was "open", I could hear the draft strongly (there is a strong wind this evening), once it was closed much less ... it's a good sign!

ps: for Ahmed, what you believed to be "plaster" is not, it is not cellular concrete glue (siporex) either I tried to remove it with a hammer, it is a classic concrete with very hard gravel, surely the screed of the top floor which has drooled? We see it on the photo on the right finished ...

[Christophe]

Well I started the stove this morning and there is always a leak, it's almost as if I did nothing Wednesday night, then I'm on the ass!

The chimney is in depression at startup, I do not understand well ...

I'm afraid a pellet stove is incompatible with a masonry chimney ???

Is it a wave resonance phenomenon, which makes it "pulse"?

I will never (for reasons of access) render 100% watertight old bushels ... at best I can roughly caulk (and a pro will never do that and will certainly advise a casing ... solution looming more and more...)

Suggestions?

[Christophe]

Well I decided to take the bull by the horns: put a casing ... and saw the state of the bushels it was the only thing to do!

Indeed; all the joints were broken and blackened and a bushel had even shifted 2 cm ...

In short, I smashed everything some bushels I could break them without tools! Here are the photos in bulk!

And miracle it does not run anymore !!