How to Install a Double Wall Stove Pipe

Written by mary lougee
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How to Install a Double Wall Stove Pipe
Stoves provide a warm atmosphere in a home. (Old Stove and Antique Chair image by bawinner from

A double wall stovepipe reduces the amount of clearance from combustible items by six inches, which saves six inches of floor space in stovepipes that are at the back of a stove and exit out of a wall. When a stove can be installed closer to a wall, that amount of space in front of the stove can be used for other purposes.

Skill level:

Things you need

  • Stove
  • Double wall stove pipe
  • Drill
  • Sheet metal screws
  • Chimney ceiling support
  • Tin snips
  • 90-degree elbows, if needed

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  1. 1

    Slide the double wall stove pipe over the stove collar. The stove collar is where the smoke exits the stove. This opening is located behind the stove or on top of it.

  2. 2

    Screw sheet metal screws into the junction of the pipe and the collar. Use a drill to place four sheet metal screws around the circumference of the junction.

  3. 3

    Slide a second double wall stovepipe section over the chimney ceiling support, and attach the junction with four sheet metal screws around the circumference of the pipe.

  4. 4

    Add a centre section of double wall stovepipe between the piece on the stove collar and the piece on the ceiling support. Secure each junction with four sheet metal screws. Cut any sections necessary to obtain the length of the centrepiece by using tin snips.

  5. 5

    Install 90-degree elbows to turn the flow of the smoke from the back of the stove or through a wall. Slide on elbows between the sections of double wall pipe, and attach them with sheet metal screws in the same manner as all junctions.

Tips and warnings

  • Double wall telescoping stovepipe is adjustable in length. It contains two pieces with one inside of a slightly larger piece so the smaller insert can be pulled out to obtain any length. Attach telescoping stovepipe to the stove collar, and extend the insert to the ceiling support. Attach to the ceiling support with sheet metal screws, and place screws in the area that contains the inner and outer parts of pipe for security.
  • Telescoping stovepipe eliminates the need for cutting stovepipe to length.
  • Follow all clearance advice from the stove manufacturer to observe fire safety practices.

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