How to Install a Fresh Air Kit for Wood Stoves

Obtain a fresh air kit with flex piping that is compatible with the size of the air intake valve on the back of the stove.

Cut a hole of an appropriate size, using a jigsaw, all the way through the exterior wall where the intake piping will pass through. You can complete the cut from the inside or the outside, as long as it is a complete hole. The installation of the main vent piping should already be completed by this point.

Place one end of the flex pipe over the intake hole of the stove. Secure it with metal clamp or according to the manufacturer's instructions.

Hold the interior wall plate in place over the interior opening in the wall. Direct the piping through the hole, but do not push it all the way through until you have set the outside wall plate in place.

Secure the metal screen to the exterior wall plate.

Continue passing the pipe through the wall. Secure the end of the pipe to the inside of the exterior wall plate, using a clamp.

Mount the inside and outside wall plates to the walls with fasteners compatible with your wall materials. Drywall screws for the interior and lag bolts for the exterior are usually appropriate. Adhere to the manufacturer's instructions to secure the installation.

Install a weather hood at the end of the pipe and secure it with metal screws or as directed. The weather hood will protect the intake pipe from water and other weathering.