Double Wall Chimney Pipe Installation

Now it s time to start putting our insulated double wall class a chimney pipe together.

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. Install the chimney pipe in the interior of the structure whenever possible. The screws should be equidistant around the pipe perimeter. 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.

Locate the end of the pipe that has the insulation recessed down. We recommend bracing vertical venting every 5 to 6 feet. Secure the dwb18a to the ceiling support with sheet metal screws. A through the wall installation requires additional components wall thimble tee w cap tee support and wall straps.

To make the transition from insulated chimney pipe to single wall stove pipe a universal pipe adapter will be needed. A cold exterior chimney will produce less draft and will generate more creosote. If at all possible avoid offsets that restrict the natural draft.