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Security SB36 Refractory Bricks (PR-SB141/PR-SB142/PR-SB143)


These are replacement OEM Security SB36 Refractory Bricks (PR-SB141/PR-SB142/PR-SB143) Rear Brick | Woodchimney.com for the Security SB36 wood fireplace.  These genuine factory replacement parts ship new in original packaging.  Also referred to as Security, Lennox, as well as Astria Bis 2 fireplaces.

Security SB36 Part Numbers:

  • Side Brick Refractories: PR-SB141 (Left and Right are the same -Add (2) to quantity if you need both)
  • Rear Brick Refractory: PR-SB142
  • Bottom Brick Refractory: PR-SB143
  • Ash lips: PR-DF585A

Product Description: Genuine replacement fire bricks for the SB36 wood fireplace from Security Chimneys International.

Security BIS Brand Names

Over the years, BIS has changed names many times. BIS fireplaces are also called:

  • Security Wood Fireplaces
  • BIS Wood Fireplaces
  • Security BIS Wood Fireplaces
  • Lennox Wood Fireplaces
  • Astria Wood Fireplaces
  • IHP Wood Fireplaces

Shipping Note: Replacement firebricks are heavy and can be damaged in shipping.  We do our best to package the bricks, but hairline cracks can be present once they arrive.  There is nothing we can do to avoid this unfortunately.  Please note – hairline cracks in firebricks are perfectly safe – only if there are chunks missing will WoodChimney.com replace the brick under shipping warranty.

We are continuously adding new products to our website. If you were unable to find what you were looking for please use our Parts Request Form.

These genuine Security SB36 Refractory Bricks is in stock and ready to ship.

Weight 35 lbs
Dimensions 29 × 25 × 15 in
SB36 Firebricks

Rear Brick, Bottom Brick, Left or Right Side Brick, Ash Lips


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