Flue arch crack: how to fix?

[Frances]

Re: Flue arch crack: how to fix?

Same here actually. I'll see what you lot do and how it works, but in all likelyhood I'll just leave it as is.

[dusty]

Re: Flue arch crack: how to fix?

I am in the exact same boat so I will be watching this thread closely. I am not worried that the arch will crumble, I am simply not willing to accept a visible crack right in the front!
I, too, was thinking of wedgeing it open when it is hot and then filling it with mortar when it cools. I suppose I will finish the curing and go from there.
Good luck.

dusty

[carioca]

Re: Flue arch crack: how to fix?

Thanks guys, will play it by ear...

(another possibility might be muffler sealant?)

Rgds,

LMH

[Ken524]

Re: Flue arch crack: how to fix?

I agree with George. Do a few fires before anything else. That's a really tight joint to begin with (nice work!). Beyond working a little hi-temp mortar into it, fixing it would be a challenge.

[gjbingham]

Re: Flue arch crack: how to fix?

All your ideas sound reasonable to me.

If it was my oven, I think I'd finish the firings and see if any other cracks show up. Your arch design looks good in the one early pic that I saw. The weight of the bricks should lock the whole thing together, so repair may not be necessary.

Just my opinion (which may stink, but I can't smell it)

[carioca]

Hi all (those with the unfortunate experience, mainly),

I am halfway thru the series of tempering firings and notice that my flue arch has a crack right at the top (see pic) when it's hot.

What are my best options to deal with this? Keep it open with wedges, wait until it cools, then fill crack with hi-temp mortar and take out the wedges? Do nothing?

Any tips most welcome.

Rgds,

LMH a.k.a. carioca