Installing a Pellet Stove into a Masonry Chimney

As with all installations, before installing your pellet stove you must first be sure that your masonry chimney is structurally safe. Using a flashlight inspect the interior of the chimney to be sure there are no obstructions.

Following local codes for clearances to combustible surfaces you must figure out where your stove is going to permanently sit. Dry fit your stove pipes where they will be going through the thimble into the masonry chimney.

More on Pellet Stoves and how they work

Measure from the thimble area where the pipe is going into the wall to the top of the chimney. This measurement will tell you how long the liner must be.

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Install the body of the tee onto the flexible stainless steel liner by tightening down the clamps. Your liner is now ready to be installed from the top of the chimney. Insert the liner into the chimney until you have the hole in the tee lined up with the thimble area. From the inside of the home you will now insert the snout of the tee into the thimble and get the loop of the clamp around the tee body and tighten it with a screw driver.

Further instructions on installing the tee

Attach the stove pipes from the stove to the stainless steel tee. With all pipes secure your bottom termination is complete.

Next the top termination must be completed. Install the top plate and cap to complete the job.

Further instructions on installing the top plate

You will want to finish off the hole where the tee comes through the wall. This can be done with refractory cement.

Your pellet stove is now vented into your stainless steel chimney liner. Be sure to maintain your liner according to the manufacturers guidelines.

Installing a Pellet Stove Into a Masonry Fireplace

The first step to any installation is to be sure that your masonry chimney is structurally safe. Using a flashlight inspect the interior of the chimney to be sure there are no obstructions.

The height of the chimney will need to be determined. Measure from the top of the chimney down to the fireplace opening where the stove will be located. Be sure to consult with local codes when determining where your stove is located.

After determining the length of pipe needed, you will then straighten out the liner and will then begin inserting it into the chimney from the top down. In some cases you may need to attach a rope on the bottom end. By having a second person at the bottom with this rope they can help guide the liner around the smoke shelf. Once the liner is inserted all the way to the firebox, you are ready to attach the pellet stove.

Always be sure to consult with the manufacturers installation instructions. However, there are a couple different ways that the pellet stove can be connected.

One way to connect to the pellet stove is by use of an appliance connector. This connector will connect to the bottom of the flex liner and into the top of the pellet stove.

Another way is by use of a tee. The tee has a bottom cap which is nice for cleaning purposes. The body of the tee will attach to the liner and the snout of the tee will attach to the pellet stove. With this connection, other adapters may be needed. Consult your manufacturer guidelines.Tee instructions

Once your bottom termination is complete and the liner is securely fastened to the pellet stove, push the stove in the fireplace into its' permanent position. Now your top termination must be completed.

Install the top plate by placing a bead of silicone caulk around the top of the masonry crown or clay liner. Using tap con screws, fasten the top plate to the chimney. Trim off any excess pipe. Last, install the rain cap.Top plate instructions

Your pellet stove is now vented into a stainless steel liner. Be sure to maintain your liner according to the manufacturer guidelines.


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