Question: Is it true that green wood would create more creosote in the chimney when burning and could be a fire hazard? Should I stick to burn dry wood or can I burn green wood when the fire is well started? Answer: Green wood will create more tars and creosote. Since this wood has so much moisture in it, this tends to cool the fire. When the fire burns cool, more creosote is formed. In addition, you will get much less heat from the wood, as some of the energy has to go to burning away the moisture in the wood.