Flue
From Wikipedia, the free encyclopedia
A flue is a duct, pipe, or chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. For water heaters and modern furnaces, they are more commonly called 'vents'; for boilers they are 'breeching'. They usually operate by buoyancy, also known as the stack effect, or the combustion products may be 'induced' via a blower. As combustion products contain carbon monoxide and other dangerous compounds, proper 'draft', and admission of replacement air is imperative. Building codes, and other standards, regulate their materials, design, and installation.
The term flue is also used to define certain pipe organ pipes, or rather, their construction or style.
