8”x 18” Stainless Steel Flue Extension – Accessories

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  • 8 by 18 inches square heavy duty stainless steel flue extension
  • illustration showing the measurements of the item
Frequently bought together:


Product Specifications:

      • Type: Flue Extension
      • Material: Stainless Steel
      • Flue Size: 8” x 18”

The lengthened flue pipe of a chimney is referred to as a flue extension. A flue is a conduit that exits a furnace or stove and goes outside the structure. Hazardous gases, smoke, and soot exit a fire through the flue. An existing flue pipe's draft may usually be increased by using a flue extension. It can be constructed with tin, galvanized metal, or clay tiles.

The draft is better when the chimney is taller. Unfortunately, it is rare for chimneys and flues to be constructed with the correct size and heights to generate an adequate airflow. To lift the top of the flue into a new air flow and restore the chimney's proper draft, a flue extension may be necessary.

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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