TLUD Biochar and Clean Burning with Bob Wells

Bob Wells uses a top-lit updraft gasifier to make biochar, demonstrating how important it is to have the correct ratio of heat, oxygen, and fuel. Beginning with a clean-burning fire, he smothers it to create the cloud of smoke the TLUD is designed to prevent. He then quickly shows just how to bring the smoky mess back to a clean, smokeless equilibrium.