... , usually we light the fire for 2-3 hours, then when temperature reach 450 we put out ... , then leave it to cool down for 10 hours, then we open the core and take the ... carbonize the wood in a traditional way, it needs 24 hours to carbonize; and the gas flow one using ... to shorten the producing time, it only need 8 hours to carbonize. ModelJXIV-2Self-igniteSize 3 M35M3Productivity(kg)10002000Temperature ...