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

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

Height of Stand 20" (51 cm) Base Diameter 7 1/2" (19 cm)

and to prevent backdraft down the chimney

It’s quick and easy

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