How to Clean Chimney

What You'll Need

• Chimney brush (correct size for flue)
• Extension rods
• Drop cloth
• Shop vacuum
• Dust mask and goggles
• Flashlight

Step-by-Step Instructions

1. 1

   Cover and prepare the firebox

   Lay a drop cloth in front of the fireplace and cover the opening with plastic to contain falling soot. Open the damper.

2. 2

   Inspect the chimney

   Use a flashlight to look up the flue. Check for creosote buildup, blockages, and damage. Significant creosote (over 1/8 inch) is a fire hazard.

3. 3

   Brush from the bottom up (or top down)

   Insert the chimney brush into the flue. Push and pull vigorously, adding extension rods as you go. Work the entire length of the flue.

4. 4

   Clean the smoke shelf

   After brushing, scrape and vacuum the smoke shelf inside the firebox -- soot accumulates here heavily.

5. 5

   Dispose of debris

   Carefully bag and dispose of all soot and creosote. Wipe the firebox clean and remove the drop cloth.

Pro Tips

• TIPHire a certified chimney sweep annually for inspection -- DIY cleaning misses dangerous creosote in many cases.
• TIPBurn only seasoned hardwood to minimize creosote buildup and prolong intervals between cleanings.
• TIPInstall a chimney cap to keep out animals, debris, and rain water.

Common Mistakes to Avoid

• XSkipping annual professional inspections, which catch dangerous issues like creosote buildup, cracked liners, and animal nests.
• XBurning wet or unseasoned wood, which produces excessive creosote and increases fire risk.
• XCleaning a chimney without proper safety gear, which exposes you to dangerous soot and creosote particles.

Frequently Asked Questions