A pipe used to exhaust smoke, gas or air.

  An enclosed passage way for directing products of combustion to the atmosphere.

"smoke channel in a chimney," 1580s, of uncertain origin, perhaps related to Middle English flue, flewe "mouthpiece of a hunting horn" (early 15c.), which is perhaps from Old Frenc [..]

the soft fibers at the base of a feather

The furnace exhaust pipe, usually going through the roof.

n. A smoke-duct in a chimney.

The space or passage in a chimney through which smoke, gas, or fumes ascend. Each passage is called a flue, which together with any others and the surrounding masonry make up the chimney.

The pathway or duct in the mouthpiece of a edge-blown aerophone that directs the air stream over the fipple and onto the labium where the air is split and vibrates to produce a sound. This is also kno [..]

A duct or channel for conveying heat or exhaust gases.

A duct or channel for conveying heat or exhaust gases.

A flue is a pipe through which gases and smoke escape from burning coal.

(n) flat bladelike projection on the arm of an anchor(n) organ pipe whose tone is produced by air passing across the sharp edge of a fissure or lip(n) a conduit to carry off smoke

Large pipe through which fumes escape from a gas water heater, furnace, or fireplace. Normally these flue pipes are double walled, galvanized sheet metal pipe and sometimes referred to as a "B Vent". Fireplace flue pipes are normally triple walled. In addition, nothing combustible shall be within one inch from the flue pipe.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

The furnace exhaust pipe, usually going through the roof.

A vent that removes the byproducts of combustion from a furnace.

The structure through which heated air, or combustion air, moves before they are released from indoors to outdoors.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

A passageway in a chimney for conveying smoke, gases or fumes to the outside air.

The space or passage in a chimney through which smoke, gas, or fumes ascend. Each passage is called a flue, which together with any others and the surrounding masonry make up the chimney.

a passage for products of combustion.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Back to the top.

The space formed by the top of the plug and the bottom of the block. This is a very shallow (but often wide) channel that routes air to the sound hole. The shape of the flue is very important to the c [..]

Any vent or passageway that carries the products of combustion from a furnace.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

the passageway in a chimney for conveying gases to the outdoors. Freestanding Stove

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Back to the top.

Any vent or passageway that carries the products of combustion from a furnace.

An opening running the length of a cylindrical steamboat boiler, which in the mid-19th century might typically have two- to five flues. These were early examples of what came to be known as “fire-tube” boilers, in which hot gases from the furnaces and flame bed

A passage in the chimney to convey smoke to the outer air.

A vent that carries the products of combustion from a boiler or furnace.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

 Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

Any vent or duct, pipe, or chimney for carrying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors.

A passageway or pipe for directing products of combustion to the atmosphere.

A flue is a pipe that carries the products of combustion out of a building. Fireplaces have flues that direct the smoke from a fire up the chimney. Natural gas appliances and equipment have flue pipes [..]

A channel for fumes leading to a chimney or vent from a furnace

Channel formed with masonry or specially made blocks or pipes through which the products of combustion pass to the outside. Until the middle 20th century, the need to stack flues from storey to storey [..]