Characteristics of Good Firewood
The type of firewood you use significantly impacts the cleanliness of your flue. Hardwoods like oak, maple, and ash are excellent choices because they are dense and burn at a higher temperature, producing less smoke and creosote. Ensure that the wood is properly seasoned, having been cut, split, and dried for at least six months.
Unseasoned or green wood contains high moisture levels, leading to incomplete combustion, increased smoke, and more creosote buildup. Aim for a moisture content of around 20% or less for optimal burning.
Avoiding Softwoods and Green Wood
Softwoods such as pine, fir, and cedar should be used sparingly, as they tend to burn quickly and produce more smoke. They can contribute to faster creosote accumulation, which is a fire hazard. If you use softwood, mix it with hardwood to balance the burn rate and reduce residue.
Avoid burning treated or painted wood, which releases toxic chemicals. Similarly, steer clear of wet or green wood, as the smoke from these can coat the flue with creosote, making it more challenging to keep the chimney clean.
Storing Firewood Properly
Proper storage of firewood ensures it remains dry and seasoned. Stack your wood off the ground, using a rack or pallets, and cover the top to protect it from rain while leaving the sides open for airflow. Good ventilation helps to lower the wood's moisture content, making it ready for burning.
Keep your firewood pile a safe distance from your home to minimize pest issues and safety hazards. About 20 feet away from your house is generally recommended. Following these tips will help ensure you have cleaner-burning wood for your fireplace.