Here it is: our Pizza Oven build. There are lots of resources online.
As we know to our cost absolutely critical is the the clay sand mix ratio. It must be 2 sand to 1 clay! And it can take nearly an hour to mix a batch.
Thermal mass layer over sand former
We used sawdust for the insulation.
The insulation layer starting to cover the thermal mass layer
The insulation layer
The insulation layer
Adding a retaining wall
Completing the insulation layer
Eastern Highlander 