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    Fireplace Dampers & Chimney Dampers

    Often overlooked, chimney dampers & fireplace dampers allow you to close off the chimney flue when the fireplace is not in use. This keeps the heat and air conditioned air from escaping up your chimney. Avoid the inefficiency by using a fireplace chimney damper. With several different options available, find the right one for your home today at the best prices!
    Browse Chimney Dampers

    If you're looking for fireplace damper replacement or fireplace damper parts, we also have you covered. We have different styles of draft guard fireplace covers, chimney flue damper and stops, and damper caps. All orders over $99 ship free and if you have any questions about which chimney flue damper is right for you, you can contact our knowledgeable customer service representatives!

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    Chimney Dampers Q&A with the NFI Certified Specialists

    * Please Note: All customer questions are answered by our NFI Certified Specialists free of charge!
    13 Questions & 13 Answers
    from Lake Forest, CA asked:
    January 16, 2020
    My gas fireplace has a manual damper that requires me to lay down and reach into the fireplace. Are there any automatic solutions? 
    1 Answer
    We do not sell any automatic dampers for gas fireplaces. We apologize for the inconvenience.
    Submitted by: Tyler M. - NFI Master Hearth Professional on January 17, 2020

    Bill T.
    from Canton, OH asked:
    December 31, 2019
    Seeking a bimetallic thermo movement air/heat vent for my Superior gas fireplace. Do they make replacement bimetallic hinges? 
    1 Answer
    We do not offer any such parts for gas vent pipe. We apologize for the inconvenience.
    Submitted by: Tyler M. - NFI Master Hearth Professional on December 31, 2019

    Ken R.
    from East Hampton, NY asked:
    December 6, 2019
    Do you sell a conversion kit for a wood stove into a normal fireplace damper?
    1 Answer
    With most old wood stoves, a connector and/or adaptor such as you describe needs to be custom-made, usually fabricated locally.
    Submitted by: Tyler M. - NFI Master Hearth Professional on December 6, 2019

    from Bowie, MD asked:
    November 22, 2019
    Is there an electric, remote or manual [external] damper for a fireplace with a wood burning insert?
    1 Answer
    We apologize, but we do not have a damper that is listed for use in conjunction with a woodburning fireplace insert.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 22, 2019

    Mike S
    from Pittsburgh, PA asked:
    November 18, 2019
    Looking for a damper plate for a 24in x4in 1922 Majestic Damper. It has a handle on the side.
    1 Answer
    We apologize, but we do not have a part that will work for your application.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 20, 2019

    Al P.
    from Bryson City, NC asked:
    October 12, 2019
    Is there a top-mounted damper that works with a zero clearance flue pipe that seals the flue as well as the vented air space around the inside flue pipe?
    1 Answer
    There isn't because the space between the inner and outer pipe must remain open with any air cooled chimney system. 
    Submitted by: Will M. on October 14, 2019

    Donna L
    from 27403 asked:
    March 18, 2019
    I am looking to replace my fireplace damper. My current damper measures 5 inches wide and most of the ones I have found online are 7 inches. Any suggestions? Can I use a 7 inch one or do I need to keep looking for 5-inch?
    1 Answer
    A 7" damper plate likely wouldn't work because it wouldn't have the properly sized hinges to hang onto your space.
    Submitted by: Brennan W. on March 19, 2019

    Mick S
    from Seattle, WA asked:
    March 12, 2019
    What top chimney dampers will work with the following flue measurement: Outside 17" x 8 5/8" Inside. 15" x 6 5/8"
    1 Answer
    Based on your measurements, I would suggest the Lyemance 8 in. x 17 in. Energy-Saving Damper
    Submitted by: Brennan W. on March 13, 2019

    from Lake Forest, CA asked:
    February 28, 2019
    I have a 10 x 13 inch OD oval shaped flue on my woodburning fireplace chimney. I would like to put a chimney top damper on it to prevent cold air from entering my home. Do you have such a device?
    1 Answer
    With your measurements, I would suggest the Lyemance 12 in. x 16 in. Energy-Saving Damper, which can fit a 10" x 13" flue.
    Submitted by: Brennan W. on March 1, 2019

    Eric H
    from Bozeman, MT asked:
    January 27, 2018
    Are there any electric dampers for gas logs designed with shielded wiring harnesses that can be ran through the chimney pipe instead of trying to feed wire through walls, etc?
    1 Answer
    We are not aware of any product matching this description. If you are installing vented gas logs in a masonry or prefabricated wood burning fireplace, you should remove or affix the damper open and not use any top-sealing damper system of any kind.
    Submitted by: Will M. on January 29, 2018

    Kevin O
    from Chicago IL asked:
    January 1, 2018
    I read that a lock top damper should not be used in gas log fireplaces. Why? Is that a requirement or a recommendation?
    1 Answer
    This is because a damper should never be used with a gas log set, as the house will fill with carbon monoxide if the set is turned on but the damper is accidentally left shut. All vented log sets come with a damper clamp to make sure that any operational damper is left open at all times.
    Submitted by: Brennan W. on January 2, 2018

    from kensington, NH asked:
    November 8, 2016
    We have a missing damper plate in our fireplace. The actual opening measures 28 and 13/16" x 5 3/4". I assume we'd need something a bit longer on both measures, right? Do you have a replacement plate that might fit?
    1 Answer
    The Vestal Cast Iron Fireplace Damper Plate - For 36 Inch Dampers measures 7" D x 28 3/8" W, but please note that this product is a replacement damper plate for Vestal dampers and may not fit properly with your damper.
    Submitted by: Will M. on November 8, 2016

    from Philadelphia, PA asked:
    August 19, 2014
    How do you determine what size damper you need? Can a novice replace the handle?
    1 Answer
    The damper throat should be sized to the width of the fireplace opening. If the opening is sized between the castings available, it should be sized to the closest casting step. The handle itself is usually simple to replace. Most models simply have a drive pin holding the handle in place, but it differs from design to design.
    Submitted by: eFireplaceStore on August 19, 2014

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