England's Stove Works 13-NC Installation & Operation Manual page 32

Moisture Meter Information

Firewood is ready at 10‐25% moisture content.

Newly‐cut logs can have a moisture content (MC) of 80% or more, depending on species. Since wood
shrinks, and can also split, twist or otherwise change shape as it dries, most wood is dried before being
used. Air drying, or 'seasoning,' is the most common method used for cord wood. In most parts of the
United States, the minimum moisture content that can be generally obtained in air drying is about 12
to 15 percent. Most air‐dried material is usually closer to 20 percent moisture content when used

To test your firewood, simply push the pins into the wood and wait for a reading. Remember, don't
just stick the meter into the ends of your firewood. To get the most accurate reading, split the wood
and test the center. The center of the log will contain the most moisture.
How Far Should I Drive Non‐Insulated Pins into Wood?

To full depth if possible. However, at moisture levels below 10%, it is usually sufficient to make good,
positive contact with the wood. At higher levels of moisture and especially if you have a steep gradient,
full penetration is a must.
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