Chimney Creosote Buildup Risk Calculator
Answer a few questions about how you use your wood-burning fireplace or stove to get an estimated creosote risk score and recommended cleaning frequency.
Creosote Risk Score
—
About this calculator
Estimate your chimney's creosote buildup risk level based on wood type, burn frequency, and flue temperature habits to help plan cleaning schedules.
Frequently Asked Questions
What causes creosote buildup?
Burning unseasoned (wet) wood or smoldering low-temperature fires produces more unburned particulates that condense in the flue as creosote.
How often should a chimney be swept?
The Chimney Safety Institute of America recommends at least one annual inspection, with more frequent cleanings for heavy users or high-risk burn habits.
Does wood species affect creosote?
Well-seasoned hardwood generally burns hotter and cleaner than softwood or wet wood, reducing creosote formation.