Thanks Ron and Zak.
Matt, Andre, and Bill. It's much easier hearing that the cracks are no big deal from you guys than it would be from FB. I guess I won't even bother FB about this than. It was just a bit alarming if you know what I mean. Below are the pictures. These are close up shots so they look bigger in the pictures but you'd have to be looking for them to see them in person.
Matt that's crazy there could still be water in the refractory cement dome. I pre-cure thed oven running temps around 250F for 30hours or so, followed by a day break, then 4 days of curing ramping up the temps slowly. And then last week's bake (1st bake) which the oven maintained temps of above 250F for over 48 hours. You would think all the moisture was gone by now.
did you start the fire on both sides? i think it's important to have the fire on top of the part of the oven you end up cooking on during warmup. i can't imagine getting the oven properly saturated with heat without spreading it over the whole floor. that said, it looks like it worked out just fine! nice work..
i also wouldn't worry about those cracks.
For this 2nd bake, I had the fire only on the left half of the oven. The fire was started there and more wood was added there. I did not move the coals all over the floor and just allowed the right side to come up to temps naturally. Maybe this is why it seemed to burn up a lot of wood?
The cracks developed only on the left side. I was piling the wood on trying to see if I could make that 1 hour heat up time FB claims. Is it possible that I heated up the oven too quickly? Is there such a thing?
I think for the next bake, I will burn center to get up to 75% of desire temps and then move it left. Or I may burn it hot on the right to see if I can get matching cracks on the right side as well.