A biochar device scaled down to use in an AP environmental science lab. Powered by a simple candle this device will carbonize a small block of wood in about 15 minutes. It is a great educational device that can supplement classwork on biochar, soil fertility, and research on Terra Preta
Nice work, 550 is ideal range and you should be able to light the "fumes" @ a certain temperature point.
megavox 2 years ago