BDM Chim-A-Lator 8" x 18" Deluxe Fireplace Damper with 3/4" Mesh v220 9% efficient using room air

9% efficient using room air for combustion and exhausting to the room

and to prevent backdraft down the chimney

It’s quick and easy

The Insulated Chimney Tee may be used to start chimneys indoors or outdoors using a Wall Support assembly or a masonry pier

BDM Chim-A-Lator 8" x 18" Deluxe Fireplace Damper with 3/4" Mesh v220 9% efficient using room airThe Chim A Lator line of chimney caps easily mounts to the top of a masonry fireplace with a simple screwdriver. All of Our caps are constructed of an 18 gauge expanded metal screen and a 16 gauge frame. Features Weld nuts where screws are installed provide secure attachment to chimney Use Outside Dimensions of Flue Tile Note: 5" minimum space between flue tiles required (overhand is 2. 5"); Fully Assembled Out of the Box Provides for fast easy