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Why Does Wood Pop When Burning. As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. Some will get stuck in the wood.
See answer (1) best answer. Unlike wood, water doesn’t convert into heat when burned. When the wood is burned, combustible gasses will be released.
Once the gas pressure builds up it will create an energy burst with mini explosion. As the gas escapes, the fire will emit an audible pop or crack. Moisture content that is trapped within the wood can cause a fire to pop.
Gas is created by trapped moisture locked in small pockets within the wood. If you place a pot of water on the stove and activate the burner, it will evaporate as steam. The popping noise occurs when air pockets in the wood are released.
In basic terms, it has something to do with the combustion gases escaping from the wood. Trapped moisture can also cause wood to pop and crackle from the creation of steam. Although your piece of wood may look and feel quite dry, it definitely has some moisture locked inside of it.
As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. Hence, there will mostly be some moisture in the wood. These air pockets fill narrow passages within the wooden log.
When the wood is burned, combustible gasses will be released. The holes created by the insects will give the gasses an escape route. As the trapped moisture heats up, it will.
