Breckwell P23FSA User Manual

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D. 
VERTICALLY INTO EXISTING MASONRY 
FIREPLACE 
 
NOTE: Follow L-Vent chimney manufacturer’s instructions. 
 
1. 
Have the masonry chimney inspected by a qualified 
chimney sweep or installer to determine its structural 
condition. 
 
2. 
You will need a pipe length equal to the chimney 
height from the hearth. If outside combustion air is to 
be used, you will need a pipe length equal to the 
chimney height plus 18 inches. 
 
3. 
Install a blanking plate and the chimney pipe, and if 
used the outside air pipe, as shown in Figure 12. 
 
4. 
Attach the DuraVent adapter, a section of pipe and 
clean out tee, making sure the clean out tee is 
centered in the chimney flue area. Use RTV, metallic 
tape, and a minimum of three self-taping screws at all 
joint connections to ensure a tight seal. 
 
5. 
Position the stove, adhering to the clearances in 
Figures 1 & 2. 
 
6. 
Measure and build chimney top plate. Cut out holes 
for chimney pipe, and if used the outside air pipe. 
Install and seal with non-hardening mastic to prevent 
water leakage. Install vent cap. 
 
E. 
INSTALLATION THROUGH SIDE OF MASONRY 
CHIMNEY 
 
NOTE: 
Follow L-Vent chimney manufacturer’s instructions. 
 
1. 
Position the stove, adhering to the clearances in 
Figures 1 & 2. Mark the center of the hole where the 
pipe is to pierce the masonry chimney. 
 
2. 
It will be necessary to break out the masonry around 
the location of the pipe center mark. Use a 4-inch 
diameter hole for 3-inch pipe and 5-inch diameter hole 
for 4-inch pipe. 
 
3. 
Measure and build chimney top plate. Cut out holes 
for chimney pipe, and if used the outside air pipe. 
 
4. 
Install the tee on the bottom of the vertical pipe 
system and lower it down the chimney until the center 
branch of the tee is level with the center of the hole in 
the masonry, as shown in Figure 13. 
 
5. 
Install and seal the top plate from step 3 with non-
hardening mastic. Slip the storm collar over the pipe, 
and while holding the pipe at the proper elevation, 
affix the collar with a minimum of three ¼” stainless 
steel sheet metal screws. Seal all joints and seams 
around the collar. 
 
6. 
Connect the horizontal pipe by pushing it through the 
hole in the masonry and lining it up with the branch in 
the tee. Push the pipe into the tee while twisting it to 
lock it into the tee. 
 
7. 
If desired, once the horizontal pipe is in place, the 
space between the pipe and masonry may be filled 
with high-temperature grout. 
 
8. 
Install the trim collar. An adjustable pipe length and 
adapter may be needed to finish the connection to the 
stove. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FIGURE 12 
FIGURE 13 
INSTALLATION 
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