Chimney fires are dramatic, dangerous, and almost entirely preventable. They come down to two things — creosote buildup and how you burn — and controlling both keeps your family and home safe.
Keep creosote under control
Creosote is the flammable residue that fuels chimney fires, and it builds up gradually with every fire. The single most effective way to prevent a chimney fire is an annual sweep and inspection that removes the buildup before it can ignite.
Burn the right wood the right way
- Burn only seasoned hardwood dried at least six months (under 20% moisture)
- Build smaller, hotter fires that burn cleaner than smoldering ones
- Give the fire plenty of air and open the damper fully
- Never burn cardboard, trash, wrapping paper, or treated wood
Watch for the warning signs
A loud cracking or popping, a deep rumbling like a freight train, dense smoke, or an intense hot smell can mean a chimney fire is happening. If you suspect one, get everyone out, call the fire department, and have the chimney inspected before using it again.
Do not skip the annual inspection
Even careful burning cannot prevent every hazard — a hidden liner crack or blockage can turn a normal fire dangerous. An annual inspection catches those problems, which is why it is the accepted safety standard.
Protect your home before burning season
Careful work, up-front pricing, seven days a week in La Grange and the western suburbs.
Call (708) 432-5330Frequently asked questions
What is the number-one cause of chimney fires?
Creosote buildup. This flammable residue accumulates with every fire, and a layer as thin as an eighth to a quarter inch can ignite.
How do I know if I had a chimney fire?
Signs include loud cracking or a rumbling sound and dense smoke, and afterward, puffy or cracked creosote, a warped damper, or damaged liner tiles.
Does burning hot fires prevent creosote?
Hot, well-aired fires produce less creosote than smoldering ones, but only a professional sweep safely removes existing buildup.
Can I use my fireplace after a chimney fire?
Not until it has been inspected. Chimney fires can crack liners and cause hidden damage that makes the next fire dangerous.
Written by Adam Evans, owner of Chimney Sweep Brothers and a chimney technician with 12 years of experience serving La Grange, IL and the western suburbs.