Why is there black stuff coming out of my chimney?

You may have some buildup of chimney creosote. Creosote is a black, tar-like substance that forms inside your chimney when smoke doesn't entirely escape. As it builds up, creosote can cause chimney fires, which can then lead to house fires. Luckily, a professional chimney sweep can help resolve the issue.

Why is black stuff coming out of my chimney?

Chimney soot is fine black or dark brown powder formed due to incomplete combustion of wood or coal in a confined place. Hence it can be correctly referred to as the byproduct of fireplace combustion. Soot is formed in a temperature lower than 284 degrees.

How do I stop soot coming down the chimney?

The best solution is to have a new liner installed. Most chimney experts recommend a stainless-steel liner, many of which have lifetime warranties. Installation of the liner will make your home safer and will also stop the debris from falling into your fireplace.

What does creosote buildup look like?

Unexplained poorly burning fires, a reduced draft or black deposits around your fireplace can all be signs of creosote buildup. To check for creosote buildup look for black soot or tar deposits around the opening of your fireplace, as well as around the throat of the chimney.

Will a hot fire remove creosote?

One method to loosen crusty or tarry creosote so it flakes off and falls down into the firebox or fireplace is to burn aluminum cans in a very hot fire. While this method works, it does not clean the chimney of creosote completely, and chimney brush cleaning is still necessary.

Common Wood Stove and Firplace Backdraft Smoke Issues

How can I tell if my chimney needs cleaning?

Is it normal for soot to come out of chimney?

A black soot stain is warning you that something is off and the chimney system is not functioning properly. For example, if any smoke residue appears on your fireplaces mantle, then take it as a serious warning to have your fireplace inspected.

Can soot catch on fire in chimney?

The chimney itself can catch on fire. If they are not routinely cleaned, the buildup of creosote and soot, which are combustible materials, will catch fire. These fires can, at times, be small and unnoticed, but can affect the structural integrity of your chimney, leaving you vulnerable to worse fires over time.

How do you know if creosote is building?

How often should a chimney be cleaned?

Both the NFPA and Spisto recommend getting your chimney cleaned and inspected once a year by a qualified professional. Carli says that regardless of chimney type, you should you have your chimney swept at least one time a year.

Should I worry about creosote?

Primary Dangers of Creosote

If a chimney is obstructed, the result can be that toxic gases, including carbon monoxide, can enter the home. Everyone with a fireplace or stove should have a carbon monoxide detector in the home, since the gas is odorless, invisible, and tasteless.

Do the chimney cleaning logs really work?

Many homeowners wonder if the chimney sweep logs or creosote sweeping logs really work to clean out fireplace flues and get rid of creosote residue so that the fireplaces are safe to use. The short answer is no, they don't work. At least, not well enough to completely clean out the flue the way it should be cleaned.

Can I clean my chimney myself?

In many cases, you can clean the chimney yourself and save a few hundred dollars. Removing ordinary chimney soot is pretty simple. But if you have heavy creosote buildup, you'll have to call in a pro.

What happens if you don't clean your chimney?

If you don't have your chimney cleaned once a year, creosote builds up in your chimney, which can lead to a chimney fire. Also, a dirty chimney can cause toxic, deadly gases such as carbon monoxide to build up that are harmful to inhale.

How often should you clean your chimney is burning coal?

By cleaning a coal flue every year, you prolong the life of the stove and your chimney, which is far less expensive to clean than trying to break away the "cement" of wet fly ash. 3. When a coal stove blocks up there is the danger of carbon monoxide poisoning.

Does burning potato skins clean chimneys?

Burning the potato peels will not eliminate all soot or creosote buildup, but they will reduce it. A normal and regular chimney cleaning is still needed to keep the fireplace working properly and safely.

How often should I burn a creosote log?

For the best results, you should use one log for every 60 fires. If you're not sure how frequently you use your chimney, keep track of every fire. You might hit 60 fires in two months, or it could take longer.

What can I burn to clean my chimney?

Sodium chloride, also known as table salt, is a simple chemical that is easy to find. Put a little salt in the fire while it is burning. The salt combines with the water in the burning wood to create a weak acid that travels up the chimney and dissolves small amounts of creosote.

How do you test a chimney for creosote?

Use your fireplace poker.

Scratch the smoke chamber above your damper to see if there is any creosote. Even if the layer of tar seems very thin, it's time to call a chimney sweep ASAP. If you have more than 1/8 of an inch of buildup, do not use the chimney until it is clean.

What is chimney soot?

Soot is a powdery residue of unburned carbon particles. The soot, usually brown or black, is like a dust or smudgy smoke that settles on surfaces. At first, soot can be easily brushed or wiped off. But it gradually accumulates in layers in chimneys, fireplaces and stovepipes.

Where does creosote build up the most?

Creosote buildup increases when the air supply is restricted in the chimney, unseasoned wood is used to make a fire, and when the chimney temperature is cooler than normal. Too much creosote buildup can cause chimney fires and these low burning fires can go undetected until they spread.

How do you clean a chimney pipe?

The best method for cleaning your chimney is scraping it with a wire chimney brush. The brush may seem expensive, but for people who burn a lot of wood and must clean their chimney more than once a year, a brush gives the best results.

What destroys creosote?

Creosote can be destroyed by treatment with chlorine, either sodium hypochlorite, or calcium hypochlorite solutions.

What does Stage 3 creosote look like?

Stage 3: Thick Coating

The final stage of creosote buildup looks like a thick coating of tar in the chimney. It can even look like it's dripping down the sides of the chimney. This is because as it heats up, the creosote can actually melt into a wax-like state.