Double Wall Chimney Pipe Installation

It may be necessary to attach the adjustable length dwb18a section to the chimney ceiling support prior to installing the sections.

Double wall chimney pipe installation.

We recommend bracing vertical venting every 5 to 6 feet. As you assemble each pipe section secure the outer wall using three 10 3 4 self tapping stainless steel sheet metal screws. Install the chimney pipe in the interior of the structure whenever possible. If double wall black pipe sections dwb are to be used the double wall black adapter dwba is required to be attached at the stove collar.

Secure the dwb18a to the ceiling support with sheet metal screws. To make the transition from insulated chimney pipe to single wall stove pipe a universal pipe adapter will be needed. If at all possible avoid offsets that restrict the natural draft. Locate the end of the pipe that has the insulation recessed down.

Now it s time to start putting our insulated double wall class a chimney pipe together. The screws should be equidistant around the pipe perimeter. Continue assembly maintaining the clearances to combustibles.