Red Silicone Sealant Universal Damper Kits Note: The crossbars are held

Note: The crossbars are held in place by the pressure of the anchors

and Stainless Keyhole Anchors (4 Anchors + 4 Tapcons)

Huge heat loss occurs when a chimney’s damper doesn’t seal properly or is missing or broken

California Universal Chimney Cap - Copper - 5/8" Mesh

The damper can be shut to seal the chimney

Red Silicone Sealant Universal Damper Kits Note: The crossbars are heldThis is the RTV red silicone sealant that is rated at 550F continuous and 600F intermittent. RTV stands for "room temperature vulcanize", meaning it cures at room temperature. So when you need the highest temperature rating, this is the one to use.