 Re: Last brick (well almost)
Hi Ken:
Yes, the collar is a pretty tight fit in the arch. I didn't anticpate how much that would expand. It cracked pretty early in the firing process. My flue temps are over 600 degrees so it only makes sense that is why the arch cracked and opened up the way it did. Thankfully it is on the outside not on the dome side, so I could potentially repair it if I so choose.
I am thinking about pulling the anchor off tonight and either cutting some slots into it or crimping it so it has some expansion freedom. When I think about it I'm kind of surprised Duratech doesn't crimp it. |