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Specialty Flue Extension with Flat Lid

Increase height and draft with the Specialty Flue Extensions. Securely fastened to the uppermost clay liner, these caps can also increase the vertical distance among flues in a multi-flue chimney, reducing the likelihood of smoke being drawn into a downstairs flue.

As low as $203.99

Increase height and draft with the Specialty Flue Extensions. Securely fastened to the uppermost clay liner, these caps can also increase the vertical distance among flues in a multi-flue chimney, reducing the likelihood of smoke being drawn into a downstairs flue. Due to a variety of sizes and options, each Specialty Flue Extension is made custom per order.

22" Flue Extension increases height by 1 foot.
34" Flue Extension increases height by 2 feet.

Features and Options:

  • 24 Gauge 304 Stainless Steel
  • 22" or 34" Height
  • Clamp On or Bolt On Mounting System
  • 3/4" Mesh or 5/8" Mesh
  • Forever Warranty

Crown Mount ExtensionThe Specialty Flue Extension is designed to mount to chimney tile. It can be converted to a Crown Mount by adding a Crown Mount Adapter. You will need this if there is no existing flue tile extending from the chimney top or the flue tile is too short.

Sizing:

Flue Extension SizeFits Clay Tile LengthFits Clay Tile Width
8 x 8 7" to 9.25" 7" to 9.25"
8 x 13 7" to 9.25" 11" to 13.5"
8 x 18 7" to 9.25" 16" to 18.25"
13 x 13 11" to 13.5" 11" to 13.5"
13 x 18 11" to 13.5" 16" to 18.25"
18 x 18 16" to 18.25" 16" to 18.25"
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