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Originally Posted by james Fio,
Is the outer mortar layer of the dome smooth and without cracks? Or are you getting some cracks big enough to let out small bits of hot air and smoke?
James |
Most of the cracks are hairline cracks. I notice they grow when the oven is hot; shrink when it's cool. Thus, when I patch the cracks, I'll force in furnace cement when the dome is warm, to get a better seal.
None of the cracks in the back or top of the dome leak smoke, but one of the larger cracks near the vent manifold does leak smoke.