Is it better to use a blanket (HF10, ceramic, etc.) or loose vermiculite. Or should I use both? I currently have a double row of firebrick dome (one laid flat and the outer on its side for a thicknness of about 7 1/2 inches with mortar). Yet I have no heat retention. My oven will not get any hotter than about 500. The floor is a solid row of firebrick laid flat on about 3/8 inch mortar, so about 2 1/2 inches plus mortar. I don't know what else to do but build an outer frame and add insulation over my dome.
Any other thoughts on why my oven won't get hot?
Shannon
Any other thoughts on why my oven won't get hot?
Shannon
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