Masonry oven modular ovens, all these methods are still in use. In all cases, the ovens typically go under a roof or some kind of weather protection. Perhaps the most significant change in masonry oven construction practices is insulation. Since masonry loses heat as fast (or faster) than it absorbs it, early ovens extended bake times by increasing mass. Thicker walls held more heat to bake more bread — but only up to a point. Since heat moves from high to lower temp, the outside of the oven can’t get as hot as the inside — unless you wrap it in a
Ceramic houses further research into earth architecture. Each of his projects achieved moderate publicity, but Khalili's geltaftan technology has seen little use since the 1980s. This is in part because of the pollution involved in oil firing. The Geltaftan Foundation, and Cal-Earth has since carried on experiments with ceramic housing, but Nader Khalili is most noted today for his work developing Super Adobe: an earth building technique using earth-filled bags as structural elements. The earth used for building ceramic houses is essentially a type of adobe with a higher clay content and fewer impurities. The earth and water are mixed until the