Instructables user fritz.bogott made this very fancy earth pizza oven, and documented every step of the way. He writes:
After several years of baking in North House Folk School’s wood-fired brick oven, I decided to build an oven of my own. I went a little crazy with extra features (slab foundation, arches, ash dump, chimney, doors, wood storage) and decorations (limestone around the foundation), but you can make a very usable version in a weekend with salvaged materials and a couple of friends.
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