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Why Does Wood Pop When Burning. Some will get stuck in the wood. This same principle rings true when burning wet or moist firewood.
Moisture content that is trapped within the wood can cause a fire to pop. As the gas escapes, the fire will emit an audible pop or crack. In basic terms, it has something to do with the combustion gases escaping from the wood.
In basic terms, it has something to do with the combustion gases escaping from the wood. Once the gas pressure builds up it will create an energy burst with mini explosion. The popping noise occurs when air pockets in the wood are released.
As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. These air pockets fill narrow passages within the wooden log. If you place a pot of water on the stove and activate the burner, it will evaporate as steam.
This same principle rings true when burning wet or moist firewood. Moisture content that is trapped within the wood can cause a fire to pop. Although your piece of wood may look and feel quite dry, it definitely has some moisture locked inside of it.
Gas is created by trapped moisture locked in small pockets within the wood. Some will get stuck in the wood. Unlike wood, water doesn’t convert into heat when burned.
Trapped moisture can also cause wood to pop and crackle from the creation of steam. As the trapped moisture heats up, it will. The holes created by the insects will give the gasses an escape route.
