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Why Does Burning Wood Pop. In basic terms, it has something to do with the combustion gases escaping from the wood. Finally, the walls can’t take the pressure anymore and burst.
As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. The holes created by the insects will give the gasses an escape route. As the trapped moisture heats up, it will.
See answer (1) best answer. Once the gas pressure builds up it will create an energy burst with mini explosion. Gases expand rapidly when heated.
In fact, as the firewood is burning and combustion is being released into the air, the burnt wood is converted into heat and waste gasses. The popping noise occurs when air pockets in the wood are released. This same principle rings true when burning wet or moist firewood.
As the wood heats up, the warmth penetrates deep into these pockets. As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. At that time, the “popping.
In basic terms, it has something to do with the combustion gases escaping from the wood. As the gas escapes, the fire will emit an audible pop or crack. In all actuality, these popping and cracking sounds are coming from a chemical reaction inside of your fireplace.
These air pockets fill narrow passages within the wooden log. Trapped moisture can also cause wood to pop and crackle from the creation of steam. Gas is created by trapped moisture locked in small pockets within the wood.
