Flue definition

Flue means a passage for conveying the products of combustion from a gas appliance to the external air.
Flue or “stack” means any point in a source designed to emit solids, liquids, or gases into the air, including a pipe or duct but not including flares.
Flue means a conduit or duct through which gases or other matter is exhausted to the atmosphere.

Examples of Flue in a sentence

  • The techniques which are described as BAT individually are targeted to remove specific pollutants, but the BREF notes that there is benefit from considering the Flue Gas Cleaning System (FGC) system as a whole unit.

  • Flue gases rise in the boiler furnace and come in contact with the steam coming out of boiler drum.

  • Flue SystemCheck that the flue is in good condition, that it is adequately supported, that there are no blockages or restrictions.

  • Flue pipes shall be encased in a chimney enclosure of metal, masonry and/or stucco.

  • Flue gas recirculation line is defined as the part of Boiler No. 100 that recirculates a portion of the boiler flue gas back into the combustion air.


More Definitions of Flue

Flue means any duct or passage for air, gases, or the like, such as a stack or chimney.
Flue means the duct, conduit or passage through which products of combustion are or are intended to be conveyed to a flue terminal;
Flue means any duct, pipe, stack, chimney, or conduit which conducts air contaminants into the open air and which permits the performance of the test methods and procedures specified in Part G of this Article.
Flue as used in this Section, means any duct or passage for air or combustion gases, such as a stack or chimney.
Flue means a confined space provided for the conveyance to the outer air of any product of combustion resulting from the operation of any heat producing appliance or equipment employing solid, liquid or gaseous fuel;
Flue means a passage which conveys the discharge of a heat generating appliance to the external air;
Flue means any duct, pipe, stack, chimney, or conduit which conducts air contaminants into the open air and which permits the performance of the test methods and procedures established by Part G of this Article. {Amended October 26, 2022, effective November 5, 2022.}