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    Fireplace Smoke Guards

    Using fireplace smoke guards can help improve your hearth experience tremendously. Wood fireplaces produce smoke as a matter of course; use our wide product selection to ensure this smoke is directed away from your room and, instead, filtered through your chimney, protecting your air quality and your hearth leisure. Easy installation is, similarly, a matter of course with these advanced options. The guards install, quite simply, in the top of the fireplace opening, reducing the hassle involved from the first moments they're in your hands. Diversity is, also, an inherent quality of these products; you'll find a variety of widths available, making locating your ideal match a simple, often, easily satisfied requirement.

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    Fireplace Smoke Guards Q&A with the NFI Certified Specialists

    * Please Note: All customer questions are answered by our NFI Certified Specialists free of charge!
    16 Questions & 16 Answers
    from Woodbury, CT asked:
    November 13, 2021
    How do I know what size smoke guard to buy? My fireplace is stone & measures 47" wide and 29" tall.

    1 Answer
    To determine the proper size smoke guard, we must first determine the ideal height of the fireplace opening.  The typical formula is to take the width of the fireplace opening and multiply that by 0.75.  The height of the fireplace opening should be no greater than that amount.  So, in your case, the width of 47 inches multiplied by 0.75 gives us an ideal opening height of 35.25 inches.  As such, in ideal conditions no smoke guard should be required.  If you are needing one, the 4" should suffice. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 15, 2021

    from Fox Lake, IL asked:
    January 1, 2021
    Do you have smoke guards for arched fireplaces?
    1 Answer
    We do not offer an arched smoke guard.
    Submitted by: Aaron D. on January 4, 2021

    from Atlanta, GA asked:
    November 4, 2020
    Are there any smoke guards that have sides?
    1 Answer
    We do not offer any smoke guards with sides.
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 4, 2020

    from Alexandria, VA asked:
    October 25, 2020
    Our fireplace only has a 24" opening, Do you have any smoke guards that will fit?
    1 Answer
    Unfortunately, no, we do not offer a smoke guard for this narrow opening.
    Submitted by: Tyler M. - NFI Master Hearth Professional on October 26, 2020

    Ken L.
    from St Louis, MO asked:
    October 20, 2020
    Do smoke guards work with a gas log fireplace to eliminate the burnt gas smell?
    1 Answer
    No, a smoke guard will not help odors from gas fireplaces. Vent free gas log sets always produce an odor. If you have a vented gas log set with a detectable odor, we would recommend having a local qualified service technician service the unit and check for issues.
    Submitted by: Tyler M. - NFI Master Hearth Professional on October 21, 2020

    William B
    from Twin Falls, ID asked:
    June 8, 2020
    Would an 8-inch guard work better than a six or four?
    1 Answer
    It depends on the size of the fireplace opening in relation to the size of the flue since a smoke guard only resolves issues resulting from an over-sized fireplace opening. Ideally, you should have 1 square inch of flue for every 10 square inches of fireplace opening.
    Submitted by: Will M. on June 8, 2020

    Dennis F
    from Scarsdale, NY asked:
    May 23, 2020
    Will adding a smoke guard created a better draft for the smoke to be pulled upward?
    1 Answer
    Yes, this is basically their purpose.
    Submitted by: Tyler M. - NFI Master Hearth Professional on May 26, 2020

    from Hopkinton, NH asked:
    January 17, 2020
    I need a smoke guard for my wood-burning fireplace with opening measurements of 43.5" W x 33.0" H.  What width smoke guard do I need?
    1 Answer
    The SmokeGuard Rollout Eliminators on this page are all suitable for use in fireplaces with opening widths from 28 1/2 to 48 inches wide. You just need to determine the proper height for your application.
    Submitted by: Tyler M. - NFI Master Hearth Professional on January 17, 2020

    November 8, 2019
    My fireplace measures 25" high and 36" wide at the opening. Will a 6" smoke guard fit?
    1 Answer
    The adjustable version will work, but you will need to determine if the 6" guard is the correct size to order. If you are experiencing smoke rollout due to an over-sized opening, the correct hood to order would be determined by the size of your chimney compared to the size of your fireplace opening. Your fireplace should have a 10 to 1 opening to flue ratio, meaning that you should have 1" of flue for every 10" of opening. For a 25" x 36" opening, your inner flue would ideally measure around 9.5" x 9.5" square or 11" round. If your inner flue were to measure only 8" square, for example, only then would you likely need a 6" smoke guard. 
    Submitted by: Will M. on November 8, 2019

    Ricardo H
    from asked:
    May 20, 2019
    Do you make smoke guards for arched openings?
    1 Answer
    No, unfortunately, we do not have any arched smoke guards. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on May 20, 2019

    from Florham Park, NJ asked:
    January 12, 2016
    Are fireplace smoke guards needed if you do not burn wood in a gas fireplace?
    1 Answer
    Smoke guards would only be needed in masonry installations where smoke rollout is experienced due to the fireplace being over-sized for the chimney diameter.
    Submitted by: Will M. on January 12, 2016

    from VA asked:
    October 7, 2015
    Are fireplace smoke guards good for an outdoor fireplace?
    1 Answer
    These smoke guards could indeed be utilized on an outdoor fireplace.
    Submitted by: Chris C. on October 8, 2015

    from NJ asked:
    November 19, 2014
    Do you carry smoke guards for wood stove inserts?
    1 Answer
    Unfortunately, no. Wood stove inserts are typically operated with the doors closed, so smoke guards for them are not very common.
    Submitted by: eFireplaceStore on November 19, 2014

    from Westhaven, CT asked:
    December 22, 2013
    How do I know what size smoke guard I need?
    1 Answer
    The size of the smokeguard that is needed will depend on the size of your fireplace opening and the size of the chimney flue. The fireplace opening and flue should have a 10 to 1 ratio to one another. Meaning, for every 10 square inches of fireplace opening, there should be 1 square inch of flue size. Based on that math, you should figure exactly how much the opening will be sized down using each guard.
    Submitted by: Collin C. - NFI Master Hearth Professional on December 23, 2013

    from Charlotte, NC asked:
    September 18, 2013
    How do I decide which width of smoke guard I need to purchase?
    1 Answer
    Ideally, your fireplace will have a 10 to 1 opening to flue ratio. That is to say, your fireplace flue will have 1 square inch of area to every 10 square inches of opening size. If you know the size of your flue, you can use that to determine how big your opening would need to be to get to that 10 to 1 ratio. You can then determine which size smoke shelf would size down your opening to get to that correct ratio.
    Submitted by: Collin C. - NFI Master Hearth Professional on September 19, 2013

    from Fairfax, VA asked:
    April 20, 2013
    How do I install a 4" smoke guard with a glass door fireplace?
    1 Answer
    In most cases, there will be enough of a brick ledge behind the doors to allow the guard to be anchored. However, you will likely need to remove the door surround in order to mount the smoke guard. Removing the doors will allow access to either side of the surround and will provide the ability to anchor the shelf into position. You can then re-install the door assembly.
    Submitted by: Collin C. - NFI Master Hearth Professional on April 22, 2013

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