This is odd, but just finished insulating 42 inch oven with three inches of blanket covered with chicken wire, and two coats of stucco. The first coat of stucco has reinforcing fibres, but the final coat does not. I have just finished with my curing fires and all looked fine. This morning i noticed a crack in the stucco base, that continues into the fire bricks i used on the deck, and a very fine crack starting at the base of the dome. I seems heat may be escaping out the floor of the oven. The oven floor is firebrick, and I followed the plans when making the base and insulating hearth. Should I worry about this?
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