Table of Contents
What is a flue pipe used for?
A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Historically the term flue meant the chimney itself.
What is a flue in a house?
FLUE – (lining in a masonry chimney)- “A clay, ceramic, or metal conduit installed inside of a chimney, intended to contain the combustion products, direct them to the outside atmosphere, and protect the chimney walls from heat and corrosion.” Although building codes vary from one state or locality to another, the Mar 20, 2015.
What is the flue pipe on a furnace?
This is the job of the flue, a large metal pipe that extends from the furnace to a chimney liner or an independent flue pipe. The flue brings combustion gases safely through your home and up through the roof, expelling them above the roofline.
What is the difference between a flue and a chimney?
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.
Where is a flue pipe?
A flue pipe is a metal pipe that is run inside of a masonry chimney. A flue pipe is a metal pipe that is run inside of a masonry chimney or run as a stand-alone chimney pipe leading from a furnace or heating stove.
How does a flue work?
Chimneys operate on the principle that hot air rises above cold air. The movement of hot gases rising from the fire creates a pressure difference between the inside of the flue and the room. This is called a “draught” and it forces air into the fireplace, this air feeds the flames as it rushes past the fire.
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.
Does my chimney have a flue?
If you have a wood-burning fire, no matter what type of appliance or fireplace it is, your system requires a 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. If your fire is a wood-burning one, your chimney needs a flue to work properly.
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.
Do all furnaces have a flue?
That depends on whether you have a standard efficiency or a high efficiency furnace. If your furnace has an AFUE rating below 90 percent, it will most likely have a flue pipe that goes up through your roof.
What is a flue pipe made of?
Single wall flue is generally made from steel and coated with enamel; this provides a smooth internal and external finish. Sometimes, however, it can be manufactured using stainless steel with no enamel coating.
How do you test a flue pipe?
How to inspect your flue pipe Remove the flue cap to check for blockages such as debris or birds’ nests. Replace and secure the cap tightly to the end of the flue pipe. Look for signs of blockages by examining the pipe itself – water streaks or rust on the flue pipe may indicate a blockage, causing moisture to back up.
What’s a flue in a fireplace?
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.
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.
How much does it cost to replace a flue pipe?
Your furnace uses flue pipes to exhaust gases outside your home. The average cost to repair or replace a flue pipe is $400–$800.
How do you install a flue pipe?
Instructions on How to Install a Flue Pipe Buy the flue pipe you want to install. Run vertical pipe up through the ceiling and roof. Keep flue pipe as straight as possible for horizontal runs. Screw three sheet metal screws to connect the pipe sections, overlapping at least 2inches along the seams.
How do I know if 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.
How do you open a flue?
Some open the flue by rotating a knob in the anticlockwise or clockwise direction, while others require you to pull or push to open the flue.
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.
