Dual Stage Combustion

WoodGas burning systems effectively burn the fuel twice.

In the first stage, combustion air is driven into the fuel to create some smoke (or wood-gas). This occurs in the gasification zone of the diagram.

In the second stage, more combustion air is driven into the chamber to burn the gas from the first stage. This occurs in the combustion zone of the diagram. The electric fan provides the combustion air in just the right amounts to produce the gas and burn it completely.