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RSF Onyx & Oracle Door & Window Gaskets (FO-FDGRK1 / FO-FDGRK3 / FR-98.09.05.N / FR-98.09.06.N)



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RSF Onyx & Oracle Door & Window Gaskets (FO-FDGRK1 / FO-FDGRK3 / FR-98.09.05.N / FR-98.09.06.N)


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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:

  • RSF Onyx Door Gasket: FO-FDGRK1
  • RSF Oracle Door Gasket: FO-FDGRK3
  • RSF Onyx & Oracle Glass Gasket (**PRE 2020**): FR-98.09.05.N Measures 77″ x 1/8″ x 1″
  • RSF Onyx & Oracle Glass Gasket (**POST 2020**):FR98.09.06.N Measures 60″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.

Additional information

Weight N/A
Dimensions N/A
Which Gasket?

Onyx Door Gasket, Oracle Door Gasket, Onxy & Oracle Glass Gasket (PRE 2020), Onyx and Oracle Glass Gasket (POST 2020)


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