How to Use flue in a Sentence

flue

noun
  • The second is to close the flue in your fireplace.
    — Derek James, CBS News, 18 Nov. 2025
  • If the fireplace is never used, plug and seal the chimney flue.
    — Marina Johnson, Louisville Courier Journal, 29 Oct. 2025
  • Windows, outside doors and chimney flues need to be closed tight.
    — Jeastman, oregonlive, 16 June 2023
  • For what seemed like a very long time, Starling stood staring up the flue.
    — Karen Russell, The New Yorker, 4 Oct. 2021
  • Make sure all windows, outside doors and chimney flues are closed tight.
    — Jeastman, oregonlive, 7 June 2023
  • Even the two large flues on the rooftop where the smoke and flame could have vented out were boarded shut.
    — Francine Uenuma, Smithsonian, 12 June 2018
  • Make sure the chimney flue is open and that the vent has been swept at least once during the last year.
    — Joe Mario Pedersen, orlandosentinel.com, 28 Jan. 2022
  • The damper should operate freely, and the flue should be free of any creosote buildup.
    — John Nugent, Chron, 31 Oct. 2020
  • But not all of us are lucky enough to live in homes with chimneys and flues—or even standalone homes at all.
    — Kelly Dawson, House Beautiful, 29 Oct. 2019
  • The flue did exactly what it was supposed to do and contained the fire.
    — Anna Bauman, Detroit Free Press, 16 July 2019
  • That's why most bats enter houses through open chimney flues or attics.
    — Health.com, 8 Sep. 2017
  • Close fireplace flues when not in use and follow gas fireplace guidelines.
    — Brendel Clark, Freep.com, 17 Jan. 2026
  • Close fireplace flues when not in use and follow gas fireplace guidelines.
    — Brendel Clark, Freep.com, 16 Dec. 2025
  • If using a fireplace, make sure the chimney flue is open and stay awake while the fire is burning.
    — Dr. Mishal Reja, ABC News, 3 Apr. 2025
  • When firefighters arrived, smoke could be seen from the home’s windows, eaves, and flue.
    — BostonGlobe.com, 8 Aug. 2021
  • Be sure to close the fireplace flue during fire season when the chimney is not being used.
    — Sarah Lapidus, The Arizona Republic, 31 May 2023
  • Sant said his team’s approach is the only one so far that directly uses the flue gas stream.
    — IEEE Spectrum, 7 Feb. 2020
  • Sant said his team’s approach is the only one so far that directly uses the flue gas stream.
    — IEEE Spectrum, 7 Feb. 2020
  • But, chimneys and flue liners are designed to contain and direct smoke.
    — Bradley Ford, Popular Mechanics, 15 Dec. 2022
  • Just inside the front door to the left sits one of only three split-flue fireplaces in Old Louisville.
    — Lennie Omalza, The Courier-Journal, 24 Nov. 2021
  • Without them, rain can go down the flue and deteriorate the mortar joints.
    — Tribune News Service, al, 14 Sep. 2022
  • If the heater burns gas or oil, the top should not be insulated, as the insulation could block the air that needs to reach the flue.
    — Henry Gifford, Popular Mechanics, 8 Aug. 2018
  • The flue is typically made of square or rectangular sections of clay pipe, called flue tiles.
    — Elle Decor Staff, ELLE Decor, 15 May 2008
  • Firs, pines, and spruces have a high sap content that can damage your chimney flue and produce a lot of creosote on your chimney walls.
    — Sheryl Geerts, Better Homes & Gardens, 17 Dec. 2024
  • Make sure there are no paper or other flammables near the fireplace, and always make sure that the flue is open before each use.
    — Don Sorrell, Cincinnati.com, 17 Dec. 2017
  • Maher is a comedian and talk-show host who last year famously advised against getting the swine flue shot.
    — Keith Kloor, Discover Magazine, 25 Nov. 2010
  • Close the chimney flue to prevent drafts, moisture, or curious critters from sneaking in.
    — Jalen Williams, Freep.com, 12 Nov. 2025
  • Use only chimneys and flues that have been cleaned and inspected annually.
    — Staff Report, Hartford Courant, 6 Feb. 2026
  • Moisture in the wood cools the fire, obviously, resulting in an incomplete burn and more woodsmoke up the flue.
    — Roy Berendsohn, Popular Mechanics, 6 Nov. 2019
  • Moisture in the wood cools the fire, obviously, resulting in an incomplete burn and more woodsmoke up the flue.
    — Roy Berendson, Popular Mechanics, 28 Sep. 2018

Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'flue.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Last Updated: