Step 2Base Construction
Thomas built his own base from concrete blocks
1. Base is 5 courses of standard concrete block (48×48″) with a line of block down the middle of the interior
2. On top of base is Durock cement board
3. On top of Durock is a 2″ layer of IsoBoard – a refractory insulation – should help keep the floor hot longer
4. Floor of oven is on Iso Board
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