Lindemann TD1818 18 x 18 in. The Top Damper

A chimney without a cap allows moisture from rain and snow to be absorbed into your the inner flue tile, outer bricks and mortar. When this trapped moisture goes through a freeze/thaw cycle, the integrity of the chimney's structure becomes compromised, creating a safety hazard. Home heating and cooling costs can escalate when a proper damper is not installed, allowing air to escape through the chimney flue. At the same time, wildlife, insects and debris can create further hazards inside an uncovered chimney flue.

• Stainless Steel & Aluminum Construction
• No Fusible Link / Quick & Easy Install
• Tight Seal / Energy Efficient
• High Opening / Better Drafting
• All Seasons Protection
• Easily Accessible Handle

• Size: 18 x1 8 in.
• Weight: 12 lbs