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Why Does Wood Pop In The Fire. As the gas escapes, the fire will emit an audible pop or crack. When the wood is burned, combustible gasses will be released.
This same principle rings true when burning wet or moist firewood. The holes created by the insects will give the gasses an escape route. As the trapped moisture heats up, it will.
When resin bits catch fire, they explode and throw hot sparks up the chimney and out the front of the fireplace. When the wood is burned, combustible gasses will be released. If you place a pot of water on the stove and activate the burner, it will evaporate as steam.
As the trapped moisture heats up, it will. Typically, when the moisture in the wood is high, the pops and crackling noises are a lot more frequent. This same principle rings true when burning wet or moist firewood.
Softwoods such as conifers and pines are more likely to spark due to their high resin content. Moisture that might have escaped without a problem will now be trapped inside this freshly formed seal, causing the wood to pop even more frequently than it would have otherwise. Woods such as red cedar and poplar are resinous, containing tree saps that are highly flammable.
And, in these moments, the popping and crackling picks up and increases until the moisture in. The holes created by the insects will give the gasses an escape route. Unlike wood, water doesn’t convert into heat when burned.
Some will get stuck in the wood. Trapped moisture can also cause wood to pop and crackle from the creation of steam.
