Originally posted by Angus
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People also use Foamglas under ceramic board. All work and have their advantages and disadvantages you will need to decide.
I used 2 .5 inches of vermicrete at 7-1 and then 2 inches of FB board on top of that and I wish I had used another 2 inches of vermicrete.
Everyone says insulate, insulate, insulate. But your oven is your own having its own character, types of food you cook and your personal access or lack of access to cheap, quality wood.
My oven stays at cooking temps for almost a week (slow smoked ribs at the end) and I wish it stayed hot longer...
Remember bottom to top ---- structural support, insulation, cooking floor, oven chamber, oven dome, insulation, waterproof covering - house or igloo, outside wind weather and Mother Nature.
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