How to install a wood stove pipe through a wall

Updated February 21, 2017

As energy costs rise, more people are turning to alternative methods of heating their house during the winter. Heating with wood, and especially wood stoves, is one popular method. However, installing a wood stove is not just a matter of poking a hole in your wall to insert your wood stove pipe. Installing a wood stove pipe improperly may cause a house fire.

Make sure that your stove is located 36 inches away from the wall before you install the wood stove pipe through a wall.

Measure the stove pipe. Multiply the diameter of the pipe by three and use that number to determine the stove pipe's clearance from the wall. If the pipe is 6 inches, the clearance should be 18 inches.

Build a 3 1/2-inch thick brick wall against any combustible wall through which you wish to pass a stove pipe. Keep 12 inches of space between the combustible and brick walls.

Install a factory-made chimney or stove pipe. Leave 9 inches of airspace between the chimney and any combustible materials. The chimney should be insulated and have a UL (Underwriter Laboratories) rating.

Connect the stove pipe to the chimney with a 24-gauge sheet steel chimney connector. Fit the pipe into a ventilated thimble and add at least 6 inches of fibreglass insulation.

Allow at least a 1/2-inch pitch from the wood stove to the connection through the wall. This helps to free the flow of the gasses from the flue. Use sheet-metal screws when you make any connections to the wood stove pipe.

Things You'll Need

  • Bricks
  • Chimney or wood stove pipe
  • Chimney connector
  • Ventilated thimble
  • 6-inch fibreglass insulation
  • Sheet metal screws
  • Screwdriver
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About the Author

Marjorie Gilbert is a freelance writer and published author. An avid researcher, Gilbert has created an Empire gown (circa 1795 to 1805) from scratch, including drafting the gown's patterns by hand.