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The cobb overlay on the cement. The prepared base consists of fire brick base covered with an insulating layer, a mix of refractory cement / crushed low density fire brick and vermiculite. A retangular form of wood blocks and bricks wrapped in paper (to ease later removal) will create a tapping arch two firebricks in size. The interior of the smelter will be determined by the sheet metal form. Previous Report Next Text © Neil Peterson, 2017 Photographs © Darrell Markewitz, 2017 Copyright details Contact us |