Quick Answer
Firewood should season for at least six months to a year for optimal burning, though it can be used after three months in a pinch. Seasoning allows moisture to evaporate, reducing smoke and creosote buildup. Proper seasoning also increases the firewood's BTU content.
Understanding Seasoning
Seasoning firewood is a crucial step in preparing it for use. This process involves allowing the wood to dry out, reducing its moisture content from around 40% to a mere 20%. The goal is to minimize the amount of energy required to burn the wood, increasing its efficiency and heat output. During this time, the wood will undergo a series of physical and chemical changes. The sap will seep out, and the cell walls will dry, resulting in a higher BTU content.
Measuring Moisture Content
There are several methods to measure the moisture content of firewood, including the use of a wood moisture meter. This tool measures the moisture content by inserting a probe into the wood and displaying the reading on an LCD screen. For seasoned firewood, a reading of 20% or lower is ideal. If the reading is higher, the firewood requires additional seasoning time.
Seasoning Techniques
To properly season firewood, it should be stored in a well-ventilated area, protected from direct sunlight and precipitation. The woodpile should be stacked off the ground to prevent moisture from accumulating. Seasoning can be accelerated by splitting the firewood, as this exposes the interior to air and increases evaporation. For optimal results, the woodpile should be turned periodically to ensure even drying.
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