About Kiln Dried Logs
Whether you burn wood in a fireplace, wood burner or stove, good quality wood is the most important aspect to the convenience, efficiency and safety of your fire. Although wood densities vary, all wood, regardless of species, has approximately the same amount of energy per pound. Moisture content is the most important factor of any firewood and effects the quality of the output. The lower the water content, the better the wood is for burning.
Seasoned firewood, so called because it is left to dry naturally for a season, will have a moisture content of around 20%. Kiln dried firewood is typically lower than 7%. Why is this important? Kiln dried wood has a higher heat output than seasoned wood, so you use less, which means fewer trips to fetch more logs and less ash to clear up the next day. As it has less moisture, it burns cleaner, there is less smoke and it burns with an improved fragrance.
Seasoned wood has a higher moisture content and is more resinous than kiln dried wood. It is this resin which produces creosote, or chimney tar, and is deposited in the flue or chimney. As the name suggests, it is sticky, messy and most importantly, flammable and increases the risk of a chimney fire. Regular use of kiln dried firewood produces less chimney tar and therefore reduces the frequency that your chimney, or flue, needs to be swept in order to maintain it safely. Kiln dried, naturally better.