Burning firewood that keeps your flue cleaner

Characteristics of Good Firewood

The type of wood used in a fireplace can significantly impact the amount of creosote that forms in the chimney flue. Well-seasoned hardwoods like oak, maple, and ash are ideal because they burn hotter and produce less smoke.

Seasoned wood has a lower moisture content, ideally below 20%, which means it burns more efficiently. This reduces the likelihood of creosote accumulation, as smoke and unburned wood particles leave the flue more completely.

Avoid Softwoods and Unseasoned Wood

Softwoods, such as pine, can exacerbate creosote buildup because they tend to burn at lower temperatures and produce more smoke. This smoke carries particles that can condense on the chimney walls, forming creosote.

Similarly, unseasoned wood, which is still wet, will burn unevenly and produce more particulates. This not only results in inefficient burning but also increases the risk of a chimney fire due to creosote buildup.

Identifying Well-Seasoned Wood

To identify properly seasoned wood, look for cracks in the end grain, along with a lighter weight compared to freshly cut logs. Well-seasoned wood will also make a hollow sound when two pieces are banged together.

It's recommended to purchase firewood well in advance and store it in a sheltered area with good airflow. This ensures the wood continues to dry out if necessary and remains ready for use when needed.