Rotten wood is just harder to light than traditional firewood. Yes it’s safe to burn rotten wood in an indoor fireplace. I recommend using regular firewood to start the fire or at the very least you’ll need to use some type of fire starter(that might not even work).
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5 x 5 x 8 wood fence post
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Free photo Rotten wood Abstract, Burned, Fibers Free Download Jooinn
