How to Build an Earth Oven For Next To Nothing
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If you are looking for a small project to get your hands (and feet!) dirty testing out some natural building skills, then building a wood-fired oven is a great place to start.  If you have a little help, it can take just a couple days to build. I have always dreamed of having my own outdoor oven.
I have posted other cob oven before but The difference with this tutorial is that the oven is made largely for free, using natural materials such as clay, straw and earth. The only real cost is for the bricks for the base, but even these could be scavenged for free, there are always old bricks to be had for free if you know where to look.