I have been curing my oven over that last week and a half. Last night was my last curing fire and I was able to get up to get the dome to clear around 900 degrees. I noticed one small crack in the dome which I am not concerned about. This morning however I noted two cracks in the hearth of the oven. I have been going slower with my curing because I have suspected I had some moisture in my board insulation below the oven floor. My guess is that residual moisture in the insulating board caused the cracks in the hearth. Should I be concerned? The other one looks like the one below. Thanks in advance, Mike
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