This oven was built according to the oven plans on FornoBravo. The plans are based on the old Roman ovens in Pompei, and are basically the best plans there are out there if you are looking for an oven to make the most amazing homemade pizza and to bake bread in a family setting. Because its not just about the pretty mosaics, there's a solid foundation underneath this, a ton of insulation both under and over the baking chamber, calculations for the right door hight and chimney draw... Building a good brick oven that works is a science in itself. And then on top of that of course there are the mosaics....