Charcoal Maker Demo (Continuous Flow)

This is my own design of a charcoal maker that makes charcoal continuously instead of in batches. The main advantage being that once you get started you can keep going until you have enough charcoal or until you run out of wood! Once you are done, just put it out with a garden hose and roll it out of the way until you need more charcoal. Design details: It is made out of a roughly 40 gallon propane turned vertical with the top cut off and a 60 gallon pressure tank with top and bottom cut off. The pressure tank is placed over the propane tank to act as a heat shroud. Air is drawn by convection from the bottom between the two tanks and travels toward the top. 9-10 inches from the top of the inner tank there is a series of 1" holes allowing some of the air into the inner tank under the wood, thus burning the wood. The rest of the air is allowed to escape out the top between the two tanks, thus supplying the secondary air to burn off the smoke. The coals that form fill the center tank and are gradually lowered down as the charcoal on the bottom is augered out. As the coals are lowered they drop below the holes where the air is introduced. Thus, deprived of O2, they too cool off by the time they are augered out of the bottom of the center tank. For more information, this unit is featured in a book with more information and pictures of a tear down. The book "Make Smoke Burn Smoke" is available here: http://www.brushapes.com/2016/02/make-smoke-burn-smoke-biomass.html