Today we mixed our zonolite with cement and water and shoveled it on top of the wonder board. We leveled it and started placing insulating bricks. We finished the bottom layer of bricks on the right side of the oven. There are more layers of bricks to go on, and we need some more zonolite for the left side. The opening you see in the photo is for the chimney ducting. The heated air will flow from the top of the fire box around the semicircle, and out the ducting. The slab and hearth bricks will sit above the insulating bricks to come. They will be supported around the edges and down the middle. More details on the slab when we get to it.We have lots of sun in the forecast, so it is great to be able to work outside and listen to music and the birds and frogs. Its a wonderful feeling watching our oven grow everyday. Soon the bakery will start growing again as well.
2 comments:
Other than the loose blocks supporting the wonderboard What is supporting the zoneite/firebrick layer? I must be attached to the walls in somehow??
Nope. The bottom layer of insulating bricks just sit on the zonolite. The layers of bricks on top of the bottom ones are stuck together. You'll see in a couple of days the progression of the insulating brick layers, then how the slab is poured on top of them across the entire oven. The part of the oven from the slab upwards is supported by the cinder block walls.
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