RSF Onyx Focus 320 Refractory – Front Left (FR-11.5.N)

USD $39.12

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SKU: FR-11.5.N Categories: , , ,

Product Description

This is an official genuine OEM RSF and RSF Energy Replacement Part.  This genuine RSF Wood Fireplaces replacement brick ships new in original RSF packaging (this is not an after-market copy).

RSF Part Number: FR-11.5.N (replaces old part numbers R4205 & A1240-4)

Applicable Models:

  • RSF Focus 320 Wood Fireplace
  • RSF Onyx Wood Fireplace
  • RSF Onyx 2 Wood Fireplace
  • RSF Onyx Wood Fireplace
  • RSF Onyx AP Wood Fireplace
  • RSF Energy Onyx Wood Fireplace

Please check the part number with your installation manual as it may work in other wood fireplaces as well.

Purpose: The firebricks are designed to protect the fireplace from warping. They also keep the heat in the fire to ensure a cleaner burn.

Installation tips: Make sure that you clean all the ashes out of the firebox. Use a vacuum (a shop vac with a drywall filter is best) to clean all the ashes out.

Other Notes: This is the price for each individual piece, if you want to replace both, you will need to order two. Do not use a household vacuum and make certain that there are no embers in the ashes before vacuuming. If you vacuum embers, you will risk having a fire in your vacuum.

This genuine RSF Replacement Brick is in stock ready to ship.

Shipping Dimensions

Weight 10 lbs
Dimensions 18 × 10 × 8 in

Replacement parts come with a 90 day warranty unless otherwise stated.

All Gas or Pellet components must be installed by a licensed technician.
All Gas or Pellet component warranty claims must include installation receipt to qualify for warranty.

Please contact Online Store Support with any warranty questions.


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