Some of you know I’m a little bit of a permaculture fanatic, so I like to interject some of these concepts where I can. Today I wanted to share a neat project going on over at permies.com’s forum. It’s called a Wofati house and essentially it is an wooden structure that uses post and beam techniques that is then mostly buried under dirt to provide thermal mass. The big concept here is that the house is optimized for solar gain and uses a large thermal mass to keep things cool in the summer and warm in the winter. The design was inspired by Mike Oehler’s design and is touted to be pretty inexpensive.