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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.
Do all chimneys have a flue?
Technically, a flue is any open vertical space in a chimney that allows smoke to escape the home from the firebox. But because every chimney’s flue must be lined, a chimney liner is usually referred to as the flue, as well. Every wood-burning or gas fireplace has a flue.
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.
Should chimney flue be open or closed?
The damper should always be fully open before lighting a fire and when the fireplace is in use. Close it when it’s not it use. 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.
What part of the chimney is the flu?
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.
Is a damper and flue the same thing?
A damper is located in the flue of your chimney. The flue is where the smoke escapes when the fire is going. Dampers are placed inside of the flue to help control ventilation.
Why do you need a chimney flue?
It may be inside a chimney or a simple flue pipe—but the flue is the duct by which smoke and waste gases exit the home. It should also be properly lined to prevent high heat and toxic fumes from escaping into the home. If your fire is a wood-burning one, your chimney needs a flue to work properly.
How do you close a chimney flue?
How to Close the Chimney Flue Turn off the gas to the fireplace or wait for wood to burn out. Put on work gloves to keep your hands free of soot. Push the lever up slightly to disengage it from its support tab and then pull it away from the tab horizontally as the damper lowers into a closed position.
How do I know if my chimney flue is open?
Conduct a visual check. Lean in under your chimney just outside of your wood burning stove. You should find a metal device just within the chimney or flue opening. The damper is open if you can see through the damper up to your chimney. If you only see a metal plate, the damper is in a closed position.
When should you close a flue?
You should close the damper on your fireplace once the fire and embers have all burned out. This prevents warm air in your house from escaping out the chimney. You should open the damper before lighting a fire and close it once the fire is done burning.
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.
What’s inside my chimney?
Inside a chimney you’ll find one or more vertical passageways called flues. Ideally, each appliance connected to the chimney (such as each fireplace, each furnace, each wood stove) has its own, separate flue. More than one flue might be contained in one masonry chimney.
What are the parts of a fireplace and chimney?
The 7 Basic Parts of a Chimney 1 – Chimney Flue. The chimney flue and the chimney liner are sometimes the same thing and sometimes not, which makes these arguably the most confusing parts of the chimney system. 2 – Chimney Liner. 3 – Chimney Cap. 4 – Chimney Flashing. 5 – Chimney Crown. 6 – Damper. 7 – Smoke Chamber.
What is the thing on top of a chimney called?
A chimney crown, also known as a chimney wash, is a slab of cement that covers the top of the chimney. While the chimney cap covers the opening of the flue, the crown covers the whole top of the chimney. The crown prevents water from entering the chimney.
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.
What is the meaning of a flue?
Definition of flue : an enclosed passageway for directing a current: such as. a : a channel in a chimney for conveying flame and smoke to the outer air. b : a pipe for conveying flame and hot gases around or through water in a steam boiler.
