Model AD-8

Internet #203630399

Anti-Backdraft Damper

$54.07 /each

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Product Overview

Specifically designed for use with Norseman Add-on Furnaces, model 1,500 or 2,500, this damper prevents chimney back drafts. It also aids in starting the stove to get the draft going faster. Installation is fast and easy.

  • Prevents back draft from returning to the furnace plenum
  • Highly recommended for proper furnace installation
  • Spring activated for proper functioning
  • Easy installation
  • Complete assembly installs into 8 in. heat duct
  • Exterior foam gasket forms a tight seal within heat duct




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Anti-Backdraft Damper
Anti-Backdraft Damper

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Need Precise Diminsions

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January 4, 2016
What is the precise outside diameter of this damper. I need to know if it will fit into a plastic flexible duct termination collar on our Fantec bathroom vent system.
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Answer (1)

January 6, 2016
The diameter is 8" because it will fit into an 8" flex duct.
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