QA

What Is A Chimney Flue

What Is a Flue? Your flue liner (located inside your chimney) is the vertical passageway that transports the waste gas to the outdoors. Think of chimney liners as an exhaust pipe that transports smoke and combustion products safely outdoors.

What is the difference between a chimney and a flue?

A flue is the channel, pipe, or tube through which gases and smoke travel from a source of combustion (fireplace, furnace, boiler) to the outside environment. A chimney is, on the other hand, in its simplest definition, the housing that encases the flue. It is usually made of masonry, brick, or stone.

Do I need a chimney flue?

One of the most common signs that you need a chimney liner is when you notice that your chimney walls are deteriorating at a faster than normal pace. When your liner is not in proper working condition, the heat or condensation will damage your brick and mortar at a higher rate.

How do I know if my chimney has a flue?

See for yourself. From inside the house, open the flue and look up as far as you can. Next, check the chimney from the roof by removing the cap and doing a visual inspection. Any signs of cracks or rough edges can signify an issue and confirm your chimney professional’s assessment.

Is a flue pipe a chimney?

A flue is simply a passage for conveying exhaust gases from an appliance to the outdoors. A flue may be a duct, pipe, vent, or chimney. An unlined chimney is technically a flue, even though an unlined chimney is a fire hazard.

Why is it called a flue?

Historically the term flue meant the chimney itself. In the United States, they are also known as vents for boilers and as breeching for water heaters and modern furnaces. They usually operate by buoyancy, also known as the stack effect, or the combustion products may be ‘induced’ via a blower.

What is the difference between a chimney flue and damper?

The flue is where the smoke escapes when the fire is going. Dampers are placed inside of the flue to help control ventilation. Your damper should have a chain or handle that you can access in order to open and close it.

What happens if flue is closed?

Operating the fireplace with the damper partially closed will not generate more heat. Instead, blocking the passage through the flue will result in smoke entering the home. The damper should be kept open until all embers are finished burning to prevent smoke from escaping into the home.

How do chimney fires start?

Most chimney fires start inside the flue where there’s either creosote buildup or a flue blockage of some kind. As heat from the fire reaches these flammable materials, the creosote or blockage ignites, starting a chimney fire.

Does a chimney fire clean the chimney?

Because each chimney fire is unique, there is no one size fits all solutions as to what repairs are needed after a chimney fire. For homes that have had minor chimney fires, repairs might be limited to removing any remaining creosote and the need to replace a few flue tiles.

What is a wood flue?

You’ll be able to identify the flue on a wood burning as it’s the pipe that protrudes out the top or back of the stove and typically continuous up out of your home either through the ceiling, up through the chimney or up the outside of an external wall.

What are the three main types of flue?

What Are the Different Types of Flu? There are three types of flu viruses: A, B, and C. Type A and B cause the annual influenza epidemics that have up to 20% of the population sniffling, aching, coughing, and running high fevers. Type C also causes flu; however, type C flu symptoms are much less severe.

How often should a chimney flue be cleaned?

Homeowners are urged to have their chimneys inspected for creosote buildup and cleaned if necessary in the spring of each year. Chimney fires are characterized by loud cracking or popping noises and a lot of dense smoke from the flue, but often times go undetected by the homeowner.

Do potato peels 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.

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.

Is it OK to leave the flue open overnight?

The smoke from burning wood contains carbon monoxide, so in order to prevent this toxic byproduct from entering your home, it is important to leave the flue open overnight. This enables a draft to carry the compound out into the atmosphere, instead of sinking down the chimney and saturating the room.

Can I use my fireplace without a damper?

Does My Chimney Have a Fireplace Damper? And while older wood-burning fireplaces can function safely without a damper (gas fireplaces cannot), a chimney without a damper is just a gaping hole in the roof of your house. It’s a gateway for frigid air to enter and for heated air to escape in the winter.

Where is the flue on a fireplace?

A chimney flue is a vertical passage or duct that runs from the firebox (where the fire burns) to the top of the chimney. Technically, a flue is any open vertical space in a chimney that allows smoke to escape the home from the firebox.

Should I close my chimney flue in the summer?

The chimney damper is the last line of defense to keep water and critters out of your home. Even if you have a chimney cap, it is a good idea to keep the damper closed in the summer. The hot, humid air that the damper lets into the chimney won’t air out chimney odors. It may actually cause your chimney to smell.