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RSF Onyx & Oracle Door & Window Gaskets (FO-FDGRK1 / FR-98.09.05)


Authentic RSF replacement gasket kit for RSF Onyx and RSF Oracle Wood Burning Fireplaces.  This new part comes in RSF packaging and includes installation instructions. 

When the stove door is closed the gasket helps to provide an airtight seal.  If you don’t have an air tight seal, more air will get into the firebox which will increase the rate at which you burn through wood.  A proper seal will increase the efficiency of your stove by a drastic amount. Gaskets should be regularly inspected and replaced if damaged or deteriorating.

OEM Part Numbers:

Please note that RSF used to sell a glass gasket for models that were made prior to 2020 and a separate glass gasket for models after 2020.  That has changed and now they just sell one gasket to fit both.  The Pre 2020 units have a smaller size glass, so this means the glass gasket you receive will be a bit longer than needed and the excess will need to be cut away to fit.  

  • RSF Onyx & Oracle Door Gasket: FO-FDGRK1
  • RSF Only & Oracle Glass Gasket: FR-98.09.05 (Replaces old part numbers FR-98.09.05.N & FR98.09.06.N) Measures 77″ x 1/8″ x 1″

Applicable Models:

  • RSF Energy Onyx
  • RSF Onyx 2
  • RSF Oracle

This part may fit other RSF products as well.  Please consult your owner’s manual to confirm. 

Check our our blog post on How to Replace Your Fireplace Door Gasket for detailed step-by-step instructions.

Please note: Gaskets are also referred to as “Door Sealers” or “Asbestos Rope”. These are all different names for the same thing.


These genuine RSF factory original gaskets are in stock ready to ship.

Weight N/A
Dimensions N/A
Which Gasket?

Onyx & Oracle Door Gasket, Onxy & Oracle Glass Gasket


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