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Creosote? Sounds fancy, but it’s basically chimney gunk! It’s a sticky, tar-like substance that builds up from burning wood. While a little creosote is normal, too much can cause chimney fires. So, wondering how to remove creosote from the chimney? Don’t worry; this blog will equip you with some effective tips for tackling creosote buildup!

Here’s the brief for you: To remove creosote from the chimney, use a chimney brush to scrub the walls thoroughly, followed by vacuuming up any loosened debris. Alternatively, consider using a chemical cleaner designed to dissolve creosote, following the manufacturer’s instructions carefully.

So, without further adieu, let’s get into the methods to help you keep your chimney clean and safe.

What is Creosote?

Creosote is a dark, greasy, flammable, and corrosive substance that can stick to the walls of your fireplace and chimney. It forms when bits of wood that didn’t burn completely, along with ash and other gases, mix together as they try to escape from your chimney. If your chimney doesn’t have good airflow, these leftover particles and gases can condense and build up on its walls.

Cleaning Up Creosote

If you don’t clean it regularly, creosote can be dangerous for your home, increasing the risk of a fire. It can also leave an ugly residue on your fireplace, spoiling the look of your room. Let’s talk about why creosote might be in your chimney or fireplace and how to get rid of it to keep your fireplace looking nice and your family safe from fire.

Causes of Chimney Creosote Problems

There are a few reasons why creosote might start building up in your chimney. A chimney that’s too big for the wood-burning appliance can make creosote more likely to accumulate. Not getting enough air, using wet or unseasoned wood, and having cool surfaces in the chimney can also make creosote stick. Whatever the reason, many homeowners want to know how to get rid of creosote.

Tips on How to Remove Creosote From the Chimney 

Before you start the process on how to clean creosote from the chimney, gather the necessary tools and equipment.

Tips on How to Remove Creosote From the Chimney 

Here’s what you’ll need:

  • Chimney brush: A stiff-bristled chimney brush attached to a flexible rod is essential for scrubbing away creosote deposits.
  • Protective gear: Wear goggles, gloves, and a dust mask to protect yourself from creosote dust and debris.
  • Drop cloths: Lay down drop cloths or plastic sheeting to protect your floors and furniture from falling debris.
  • Flashlight: A flashlight will help inspect the chimney’s interior for creosote buildup.
  • Vacuum cleaner: Have a vacuum cleaner with a hose attachment handy to clean up any loose creosote or debris.

Methods for Removing Creosote

Now that you have your tools ready let’s look at some effective ways to remove creosote from your chimney:

Mechanical Cleaning

  • Put the chimney brush into the chimney either from the top or bottom, depending on which is easier to reach.
  • Carefully lower the chimney brush down the flue (the opening in your chimney). Gently scrub the sides and work your way down. You might need a helper to hold the brush from below while you work from the roof (be sure they have proper safety gear, too!).
  • Scrub the chimney walls thoroughly by moving the brush up and down or side to side.
  • Keep brushing until you’ve gotten rid of as much creosote buildup as you can.
  • Once you’ve brushed, use the shop vacuum to suck up any loose creosote from the fireplace and chimney opening.
  • For the fireplace itself, dampen your masonry brush and scrub the creosote stains. You can make a cleaning solution with equal parts warm water and dish soap for stubborn areas.
  • Rinse the fireplace with clean water and dry it completely with rags.

Chemical Cleaners

  • Get a chimney cleaning product made to break down creosote. 
  • Follow the instructions from the manufacturer for how to use it and stay safe.
  • Let the cleaner sit for the amount of time the instructions say to dissolve the creosote.
  • After the cleaner has worked, use the chimney brush to scrub the walls.
  • Finally, vacuum up any leftover residue and debris.

Professional Chimney Sweep

  • If you’re not comfortable or able to clean the chimney yourself, think about hiring a professional chimney sweep for chimney creosote removal service.
  • A chimney sweep has the know-how and skill to clean your chimney well and make sure there’s no creosote left.
  • Make sure to schedule regular chimney checks and cleanings to stop creosote building up and keep your chimney safe.

How to Remove Creosote From a Wood Furnace

Removing creosote from a wood furnace is crucial, especially if there’s a tough, glazed-on coating. You can safely do this by using a creosote remover with trisodium phosphate. Start by lighting a fire, applying the remover, and repeating twice a week for a month. Check monthly, remove debris, and use a chimney brush for extra residue. You can also use special logs or sticks in a well-stocked fire to help.

Handling creosote stains on other surfaces, like metal or brick, is usually done by homeowners. It’s not easy, especially if the stains have been there a while, but it can be done with effort.

How to Remove Creosote from Brick

To remove creosote from brick, wear protective gear such as goggles, a face mask, and rubber gloves. Follow these steps:

  • Prepare the area by covering nearby furniture and opening windows for ventilation.
  • Mix equal parts salt and liquid dish soap in a bowl, adding half a cup of ammonia until it’s a creamy paste.
  • Wear gloves and apply the paste onto the creosote-covered bricks, letting it sit for 15-30 minutes.
  • Scrub the bricks with a stiff brush or steel wool sponge in circular motions until the paste and creosote come off.
  • Spray cold water onto the bricks and wipe off any remaining paste and creosote with a clean towel.

How to Remove Creosote from Clothes

After cleaning your walls, brick, or fireplace, you might get creosote on your clothes. Before washing them, it’s important to treat the clothes first. Do not put the soiled clothes directly into the washing machine.

Here are the steps to remove creosote from your clothing:

  • Treat each soiled area with an oil-based substance like lard, butter, chicken fat, or olive oil on a rag. Rub the oil onto the stain in one direction to lift it off the fabric.
  • Apply a good detergent and warm water to work into a lather on the stain.
  • Rinse the rag and repeat until the area looks clean.
  • Wash the clothing in the washing machine as usual, ideally on its own, and check the stain before drying. Make sure any stains are gone before drying, as heat can set them further.

Safety Precautions

While removing creosote from your chimney, prioritize safety at all times. Below are some key safety precautions to follow:

  • Always ensure to wear protective gear, including goggles, gloves, and a dust mask, to stop exposure to creosote and debris.
  • Work in a well-ventilated area to avoid inhaling creosote fumes.
  • Use caution when working on a ladder or roof to access the chimney.
  • Keep children and pets away from the work area to prevent accidents.
  • If you encounter significant creosote buildup or structural issues with your chimney, seek professional help.

In addition, you can visit our insightful blog to find out the answer to the question, “What happens if you don’t clean your chimney?

Prevention is Key!

  • Burn Hot & Dry: Always use well-seasoned, dry firewood. Wet or damp wood burns cooler, creating more creosote.
  • Regular Sweeps: Schedule professional chimney sweeps at least once a year, more often, if you burn wood frequently.
  • Log Sweepers: Consider using special chimney sweep logs throughout the burning season. These can help loosen and remove creosote buildup.

Visit our informative blog to learn, “Why are sparks coming out of my chimney?

Contact a Pro

Removing creosote can be tough for homeowners. If you need help, turn to H&H Services. We recommend getting your chimney cleaned once a year or more often if you use your fireplace a lot.

For chimney cleaning in Philadelphia, choose us. We’re experts in both homes and businesses, ensuring your fireplace stays safe and efficient.

We have clear prices and guarantee your satisfaction. With years of experience, we handle common chimney issues quickly and professionally. We’re available for emergencies six days a week.

Call us at (215) 867-9902 or book online for a $69 inspection and a 10% discount.

Wrapping Up

To keep your fireplace safe and efficient, it’s important to keep the chimney free of creosote. By following the tips in this guide, “How to remove creosote from the chimney,” you can remove creosote and ensure your home stays clean and safe. Remember to maintain your chimney regularly and get help from professionals if needed. 


What are the signs of heavy creosote buildup?

Signs include large, tar-like globs in your chimney, difficulty starting fires, smoke backing up into your home, and a glazed or shiny appearance on the flue walls.

Can I remove the creosote from the chimney cap?

Yes, you can usually remove creosote from the chimney cap by hand or with a brush. Wear gloves and eye protection!

Is there a safe way to burn off creosote?

Burning a hot fire with dry wood can help remove small amounts of creosote. However, this is only safe for light buildup and requires proper ventilation. For heavy buildup, call a professional.

What should I do if I accidentally inhale creosote dust?

If you experience coughing, shortness of breath, or eye irritation, move to fresh air and seek medical attention if symptoms worsen.

Are there natural ways to remove creosote?

Some claim vinegar or baking soda solutions can help, but their effectiveness is unproven. Chemical removers are available, but use them with caution and proper ventilation.



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