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    Wood Stove Gaskets and Gasket Adhesives

    A deteriorating wood stove gasket can lead to a loss of stove efficiency and can lead to a reduction in quality of your home's air, by leaking both heat and combustion gases from the combustion chamber. Replacing your wood stove door gasket is easy! Gasket material comes in a variety of diameters, and you must choose both the right size of gasket rope and the appropriate gasket adhesive for your model of stove. Gaskets are made from graphite-impregnated fiberglass and come in both white and black, allowing them to match the finish of nearly any wood stove.
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    Gaskets and Adhesives Q&A with the NFI Certified Specialists

    * Please Note: All customer questions are answered by our NFI Certified Specialists free of charge!
    14 Questions & 14 Answers
    from Monterey asked:
    February 25, 2022
    Is there an easy way to remove worn gasket in the firebox without scraping, sanding, or sandblasting?
    1 Answer
    Typically a worn gasket is removed using a flat head screwdriver or pliers, and, yes, scraping is necessary (usually with the flat heat screwdriver) to remove the excess cement.
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 25, 2022

    Maria K
    January 31, 2022
    Are gaskets for wood stoves brand specific?
    1 Answer
    No, but different brands and models require different sizes and types of gaskets.
    Submitted by: Tyler M. - NFI Master Hearth Professional on January 31, 2022

    Rick S
    from Idyllwild, CA asked:
    October 12, 2021
    How do I measure the wood stove gasket diameter?
    1 Answer
    You will need to measure the "channel" in which the gasket will be seated into.
    Submitted by: Aaron D. on October 13, 2021

    from Prairie du Chien, WI asked:
    July 29, 2021
    What can I use to seal up gaps around the perimeter, under my wood cook stovetop, where it meets the base?
    1 Answer
    An item such as refractory cement may work for this application, however, I would consult the manufacturer of your wood stove for further recommendations.
    Submitted by: Aaron D. on July 30, 2021

    Carl M.
    from 17740 asked:
    May 9, 2021
    What would be the best sealer for the glass on a pellet stove?
    1 Answer
    It is recommended to use the replacement gasket material that is listed in the replacement parts section of your specific appliance installation/owners manual.
    Submitted by: Aaron D. on May 10, 2021

    from Rossville, IN asked:
    February 22, 2021
    My wood stove manual says to use 5/16 medium density fiberglass rope. All I can find is high density. Is this acceptable?
    1 Answer
    Submitted by: Tyler M. - NFI Master Hearth Professional on February 23, 2021

    from Golden Valley, AZ asked:
    November 22, 2019
    Can gasket be used on the outside of the box at the connection of the stove pipe to seal a gap rather than use silicone?
    1 Answer
    If double wall black stovepipe is being used, you will want to install the stovetop adapter on the stove flue collar and this wouldn't require any sealant. Actually, sealant isn't typically recommended or required for any of the interior stovepipe run. If sealant is used, you should use furnace cement and should not use a silicone based sealant as these products typically won't withstand the surface temperatures reached with a wood stove outside of a few high temperature silicone based products rated up to 7-800 degrees F. While the use of gasket rope wouldn't be necessary for the application in question, you'd want to use gasket-specific adhesive or gasket cement, 
    Submitted by: Will M. on November 22, 2019

    from Boston, MA asked:
    November 13, 2019

    The metal plate on the back of my firebox is cracked. I used furnace cement, but it eventually falls out. Would gasket material work better to keep it from falling out?

    1 Answer
    No, gasket is usually used only to seal the door on a wood stove and not the internal backing components. 
    Submitted by: Tyler M. - NFI Master Hearth Professional on November 14, 2019

    October 7, 2019
    Do you carry 7/8" square (not rope) gasket material for a wood fired boiler door?
    1 Answer
    We apologize but we only carry the 7/8 rope gasket.
    Submitted by: Kathy O. on October 8, 2019

    from Hopwood PA asked:
    February 16, 2019
    Do you sell 7/8 fiberglass wood stove gasket in 8 foot lengths?
    1 Answer
    We do not sell 7/8" in 8 foot lengths. The closest we would have would be the Rutland Fiberglass Grapho-Glas Stove Gasket Rope - 64 Inch x 7/8 Inch.
    Submitted by: Brennan W. on February 18, 2019

    James D
    from Mentor, Ohio asked:
    November 28, 2018
    Do you have gasket material that can be used between my fireplace insert and the blocking plate that connects to my chimney liner?
    1 Answer
    There is no gasket material made for that, but you could use an RTV silicone to seal that blocking plate.
    Submitted by: Owen O. on November 29, 2018

    from Effingham, IL asked:
    December 29, 2017
    Trying to find the correct size door gasket for a Trailblazer 1300 wood stove. Any help would be appreciated
    1 Answer
    This stove is not manufactured by a company we offer products for. I recommend contacting this manufacturer to locate the correct size gasket. Once this information is confirmed, we do offer universal gasket rope that may be used with any wood stove.
    Submitted by: Will M. on January 2, 2018

    from Parker, CO asked:
    December 5, 2017
    I have a GTI Model 6000 GDV-HSI serial # GCN 27667 gas fireplace insert. The red gasket around the glass has deteriorated and fallen off. Do you have anything that will replace this seal? Thanks!
    1 Answer
    Researching this model number, it seems that they might be a product of Heat N Glo. You would need to contact the manufacturer directly for replacements at 1-800-927-6841.
    Submitted by: Kelsey C. on December 5, 2017

    from San Diego, CA asked:
    October 12, 2016
    Can your gasket be used to seal the 3/4 inch space between the firebox and the fascia ?
    1 Answer
    A gasket could indeed be used for this purpose.
    Submitted by: Brennan W. on October 12, 2016

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