Hi, any chance you could make Vermont's solar fest and do a workshop at Green Mountain college that has an environmental science school? You could use our house as a demo, either for a hybrid or pure rocket stove. Also, I contacted you on youtube and still have not found much on the hybrids as I think my house with a basement and a floor and a half is not a good candidate for a pure rocket mass stove unless we somehow can run the mass up through a floor or so? Dk, I stunk at all math like things in school. Cool stuff guys.