Why does my firewood hiss?

Hiss sounds from burning firewood is a sign that the wood is too high in moisture or sap content. Unseasoned firewood that is still too wet to burn efficiently can make hissing noises as the excess moisture within the wood is burnt off.
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How can you tell if firewood is bad?

How Can You Tell That Firewood Is Bad?
  1. Course or splitting ends on the logs.
  2. The bark is coming away or can be more easily peeled off.
  3. The logs will be lighter than wet wood of similar size.
  4. When banged together the logs will make more of a hollow sounding noise.
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How can you tell if firewood is seasoned?

The seasoning process can take months or even years, so how can you tell if firewood is seasoned? Seasoned wood will be darker in color than green wood, and may be cracking at the ends. Seasoned wood can also lighter in weight and the bark can be peeled off more easily than unseasoned wood.
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Why is the firewood foaming?

If there is just a small amount of hissing or foaming then this simply means that the wood was not dried for a long enough time period and that the remaining moisture is boiling off.
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Does seasoned wood sizzle?

Green or improperly seasoned wood will be free of checking and cracks on the ends, will feel “heavier” and may even feel moist to the touch. Often it will give off more of an odor than dry wood. When it burns it will often sizzle and pop, and give off steam.
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The Differences Between Dried And Truly Seasoned Firewood



How can you tell if firewood is wet?

How To Tell If Firewood Is Wet. Firewood that is too wet to burn will be harder to light and harder to keep burning, and may produce more smoke than usual. Wet firewood can have moisture visible under the bark or feel wet to the touch, and will have a moisture content level higher than 20%.
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What happens if I burn unseasoned wood?

If you burn unseasoned wood the water vapour, when combined with other gases and particles go up the chimney, and unless the chimney is kept warm, the condensation creates a creosote substance, which when hardens forms tar in the chimney. This tar can also seep into the brickwork if a chimney is unlined.
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Does seasoned firewood hiss?

Seasoned firewood will be lower in moisture content than unseasoned firewood and will typically produce fewer hiss noises throughout a fire.
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How long should wood dry before burning?

But will their firewood be ready? Generally you should dry or “season” firewood for six to 18 months before burning. But Mike Kuhns, a Utah State University professor and extension forester, says that time frame can be too broad to be useful. Luckily there are plenty of ways to narrow that window.
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How dry should firewood be before burning?

It's important to burn only wood with moisture content below 20%. Burning wood with higher moisture content creates more smoke, which contains harmful chemicals and particulates and forms creosote on your chimney.
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How long after cutting wood can you burn it?

Green Wood

When a living tree is cut down, the timber needs to age or "season" for a minimum of six to nine months before burning. Freshly cut wood, called green wood, is loaded with sap (mostly water) and needs to dry out first.
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How long should logs be seasoned before burning?

Spring is a good time to start seasoning firewood, as it takes at least 6 months to reach optimum dryness. This means if you start in April, you can have it ready to go by the first cold October nights.
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Is it OK to leave firewood uncovered?

To Cover or Not to Cover

Ideally, firewood should remain uncovered so it can be properly dried, but this is not practical when rain, snow and ice can quickly coat winter firewood. A good cover over the top of your woodpile will protect it, and be sure the cover is slanted to shed moisture away from the pile's base.
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Can wood be too rotten burning?

Can You Burn Rotten Firewood? You can - but it's not recommended. Rotten wood is not only less dense than solid wood, meaning it won't produce as much heat, but it can produce creosote and gum up your chimney because rotten wood is typically wet.
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Can wood be too old for smoking?

Wood that is overly soft, spongy or decayed is never recommended for smoking as it tends to impart an unpleasant flavor to the meat.
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Is it OK for firewood to get rained on?

Once wood has properly seasoned, does it matter whether rain gets on seasoned firewood? Seasoned firewood should be stored out of the rain to help prolong how well it keeps for. If seasoned firewood gets rained on it can dry out within a few days, but constant contact with moisture will lead to the wood going bad.
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Should you cover firewood with a tarp?

If firewood is seasoned, dry and ready to burn, then it should have a tarp over the top of the stack to protect it from the elements. However, do not cover the sides of the stack with a tarp, or the wood may rot. Even after the wood is dry, the stack needs good air circulation to keep moisture out.
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Can you stack wet firewood?

Can you stack wet wood? Of course, you can stack wet or green wood. Stacking firewood is the primary way in which you will season it. By stacking the wood properly you allow adequate airflow around the wood which will dry it out more quickly.
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Does wet or dry wood pop?

Firewood pops and cracks due to the water inside it evaporating. Seasoned firewood is less likely to pop than unseasoned wood because the drying process has removed some of this moisture content.
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How long should wood season?

How long does it take to season firewood? It can take 3-12 months or longer to season firewood. On average, it usually takes around 6-months to dry out the cut-firewood that you purchased from a store or supplier. Depending on the original timber's moisture content, it can take more or less time to season.
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Is it OK to burn 2x4 in wood stove?

Treated wood is highly toxic when burned. Make sure to keep any treated wood separated from the clean 2x4s pile to avoid accidentally burning hazardous chemicals like arsenic.
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What wood is toxic burning?

Poisonous Wood

Burning poison oak, poison ivy, poison sumac and poisonwood creates smoke with irritant oils that can cause severe breathing problems and eye irritation.
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Where does creosote build up the most?

Creosote buildup increases when the air supply is restricted in the chimney, unseasoned wood is used to make a fire, and when the chimney temperature is cooler than normal. Too much creosote buildup can cause chimney fires and these low burning fires can go undetected until they spread.
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How long is firewood good for?

Firewood can be stored for approximately four years without any issues. Burning slightly older wood is better because green, freshly cut firewood does not burn as well. To get the most of your firewood over time, store the wood raised off the bare ground in a sheltered location.
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