Red Silicone Sealant Universal Damper Kits You must use the correct

You must use the correct cap for each system

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

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

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

Red Silicone Sealant Universal Damper Kits You must use the correctThis 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.