Double Wall Chimney Pipe Installation

Continue assembly maintaining the clearances to combustibles.

Double wall chimney pipe installation.

Secure the dwb18a to the ceiling support with sheet metal screws. Locate the end of the pipe that has the insulation recessed down. Install the chimney pipe in the interior of the structure whenever possible. To make the transition from insulated chimney pipe to single wall stove pipe a universal pipe adapter will be needed.

It may be necessary to attach the adjustable length dwb18a section to the chimney ceiling support prior to installing the sections. As you assemble each pipe section secure the outer wall using three 10 3 4 self tapping stainless steel sheet metal screws. A cold exterior chimney will produce less draft and will generate more creosote. The screws should be equidistant around the pipe perimeter.

A through the wall installation requires additional components wall thimble tee w cap tee support and wall straps. Now it s time to start putting our insulated double wall class a chimney pipe together. We recommend bracing vertical venting every 5 to 6 feet.