13”x 21” Stainless Steel Flue Extension – Accessories

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  • heavy duty square 13 x 21 inches stainless steel flue extension
  • illustration showing the measurements of the item
Frequently bought together:


Product Specifications:

      • Type: Flue Extension
      • Material: Stainless Steel
      • Flue Size: 13” x 21”

Better drafts are produced by a taller chimney. Unfortunately, finding chimneys and flues that were built with the correct proportions and height to offer optimum ventilation is challenging. A flue extension may be required to move the top of the flue into a fresh air flow and reestablish the chimney's proper draft.

Installs on chimney where no flue is extending or flue is too short; Tapcon screws are included.


  • Heavy Duty Frame
  • Threaded Weld Nuts - For easy and secure installation
  • 100% Stainless Steel Construction No rust or corrosion – Lifetime Warranty

PDF Downloads Downloads
BDM Chimney Cap Warranty Card.pdf

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