Our family built this durable and beautiful brick and cob outdoor pizza oven for under $200. As we did, we documented the entire process, so you could also build your own backyard pizza oven. | Homestead Honey
an original design incorporating the efficiency of a rocket stove into the design of a pizza oven This will reduce the amount of fuel and time required to heat your oven and also stops the oven from spewing smoke out constantly. It burns almost perfectly clean. Check out my website (http://lhalfo011.wix.com/rocket-vs-oven) where I talk about the science behind how it does this.
cutaway diagram of a cob pizza oven using glass bottles for insulation