Is Chimney Cleaning Necessary?

Clean your chimney annually.

Under normal use, creosote residue builds up on the chimney walls. Creosote is a black or brown residue that forms while burning wood. If this residue is not removed regularly and is allowed to build up, your chimney and house could catch fire.

What to Burn

Seasoned wood is best, and it should be dried for a least a year. The main reason to season firewood is to bring the water content down to 20 percent. Wet wood contributes to creosote buildup.

Chimney Flues

Exposed chimneys encourage creosote buildup because they are much colder than chimneys that run through the center of a home. As the heat and smoke rise, creosote condenses on the chimney wall, especially if the wall is cold.

Air Flow

If dampers or air inlets are closed too much, the air flow up the chimney is reduced. The longer smoke resides in the chimney, the greater the creosote buildup.

Stove Pipe Thermometer

Install a stove pipe thermometer if you have a wood stove. The dial is clearly marked to show you whether your stove pipe is too hot or too cold. If your stove pipe is too cool, creosote forms. If it is too hot, you are in danger of a chimney fire.

Cleaning and Inspection

According to the Chimney Safety Institute of America, your chimney should be inspected and swept annually.

Warning

Burning cardboard, wrapping paper, trash and Christmas trees may ignite a chimney fire. These items burn hot and fast, allowing the high flames to ignite the creosote.

References

• Chimney Safety Institute of America
• Heating With Wood: Producing, Harvesting and Processing Firewood

Resources

• Best Burning Wood; Master Sweep Chimney Service