If you can burn up the oils coming off the charcoal in a clean way for home heating I am all for it. Water content in the wood is the main challenge, but if you can overcome that then it does make things simpler. Charcoal is really good for small engines. As your char volumes increase though you will find wood an easier feedstock to prepare for larger engines and vehicles.
Charcoal has a market value, so being able to make charcoal means you can sell it if need be. Once the charcoal has gone through the reduction zone of the gasifier it is considered activated and it is ideal for drinking water filtration.
Charcoal is also brittle so its easier to break than wood is to chunk.
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Learn how to make free motor fuel at home using wood. It's called wood gasification. It's a 100+ year old technology that powered 1 million vehicles during WWII. Learn more at http://woodgasifierplans.com
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