Specifically designed for use with Norseman Add-on Furnaces, model 1500 or 2500, 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

　　- MFG Model # : AD-8

　　- MFG Part # : AD-8