INSTALLATION INTO A MASONRY FIREPLACE

1. Have the masonry chimney inspected by a qualified chimney sweep or installer, to determine it’s structural condition.
2. Carefully read the pellet stove or insert installation instructions.
3. Measure and record the dimensions as shown in Figure 8.
4. Use dimension "A" to determine total pipe requirements. Add 12 additional inches to insure the termination is an adequate distance above the roofline.
5. The gross pipe required will be “A” dimension plus 12 inches. Five feet of this will be Flex Pipe. The remainder will be rigid pipe. For each joint, subtract 1-1/2 inches to allow for the overlap. You may need extra pipe, or an adjustable length pipe section to achieve the correct height.
6. Assemble the first rigid pipe section to the Flex Pipe, insuring that the "UP" arrows shown on the pipe labels are, in fact, pointing up. Push the sections together and twist to lock. Screws are not required for a firm lock, however, should it be desired to use them, use stainless steel sheet metal screws 1/4 inch long, being careful not to penetrate the inner liner of the pipe.

7. Repeat this process for the remainder of the pipe sections, and lower the assembly down the chimney as shown in Figure 9. Lower it below it’s normal position in order to connect the Flex Pipe to the pipe on the appliance. It may be necessary to tie a line to the top section, to pull it back up later.
8. In making the connection at the appliance, configurations other than the one shown in Figure 10 may be made. It may be necessary to contact the manufacturer of the unit to determine exactly what may or may not be done to make the correct connection. Some typical arrangements are shown in Figures 11 and 12. A Pipe Adapter may be needed, depending on the exit size of the stove or insert collar.
9. If a Tee is necessary to make the connection, as shown in Figure 12, the Tee has a removable Clean Out Adapter on it’s base to enable cleaning. The Tee Support Bracket to hold the Tee to the rear of the appliance is mandatory. If it is desired to mount the Tee Support to the rear of the stove, obtain approval from the manufacturer of the stove before drilling, tapping, or performing any other alterations to the appliance.
10. Connect the appliance to the coupling on the bottom of the Flex Pipe, by twisting to the locked position. Push the appliance into the fireplace to it’s final resting place. Go to the top of the chimney and pull the vent system up to it’s desired height.
11. For the termination of the pellet vent, you will use a Tall Cone Flashing, and a Storm Collar. This will require 14 inches of pipe above the top of the masonry chimney. Pull the pipe up through the flashing to the desired height. Mark where the Storm Collar will go. Slip the Storm Collar down over the pipe, and affix it to the pipe with a 1/4"-long stainless steel sheet metal screw. (Figures 13 & 14). The Storm Collar will then support the entire vent system. Install the Cap. Seal the joint at the Storm Collar, and any other joints or seams which may appear suspect. Figure 15 show a Tall Cone Flashing modified to fit a chimney where the tile liner protrudes above the masonry, as another alternate termination technique. This completes the masonry installation.

INSTALLATION THROUGH THE SIDE OF MASONRY CHIMNEY

1. Set the appliance in it’s final location and mark the center of the hole where the pipe is to penetrate the masonry chimney. (Figure 16). Insure that you comply with the manufacturer’s specifications in regards to clearance and distances from combustible surfaces.
2. The pellet vent system is assembled essentially the same as previously described for installation in an existing masonry chimney with the exceptions listed:
A. No Flex Pipe is required, unless the masonry chimney has an offset. If an offset exist, then a section of Flex Pipe will be needed to accommodate the offset.
B. A Tee is installed at the bottom end of the vertical pipe. (Figure 16).
C. A Reduction Collar or a Trim Collar is required to go around the pipe section that passes through the masonry to give it a finished look. (Figure 16)
3. It will be necessary to break out the masonry around the location of the pipe center line mark to a diameter of at least 4 inches for 3 inch pipe, and at least 5 inches in diameter for 4 inch pipe.

 

4. Install the Tee on the bottom of the vertical pipe system and lower it down the chimney until the center of the branch of the Tee is level with the center of the hole in the masonry. Connect horizontal pipe section to the Tee branch.
5. Holding the pipe at the proper elevation, install the Storm Collar and Cap, as described in Step 11 for the fireplace installation.
6. Connect the horizontal piece of pipe which goes through the masonry to the Tee by pushing it through the hole in the masonry, and lining it up with the branch of the Tee. Then push it into the Tee, while twisting to lock it.
7. Once the horizontal pipe section is in place, the space between the pipe and the masonry may be filled with high temperature grout, as shown in Figure 17, if desired.
8. Install the Reduction Collar or Trim Collar, the 90° Elbow, and the vertical pipe section going to the appliance. An Adjustable Pipe length will probably be needed, as well as a Pipe Adapter.
9. Conduct a final inspection of the entire job, and review the manufacturer's operating and installation instructions once more, before firing the appliance.