D.
VERTICALLY INTO EXISTING MASONRY FIREPLACE
NOTE:
Follow L-Vent chimney manufacturer’s instructions and
minimum clearances. 3” minimum is standard, though depending
upon the pipe you purchase the minimum clearance may be more
or less than the 3” standard.
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, we
recommend using ash cleanout doors, or punching through
the rear of the fireplace to the outside.
3.
Install a blanking plate and the chimney pipe, and if used the
outside air pipe, as shown in Figure 9.
4.
Attach the L-vent 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.
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 and
minimum clearances. 3” minimum is standard, though depending
upon the pipe you purchase the minimum clearance may be more
or less than the 3” standard.
1.
Position the stove, adhering to the clearances in Figure 1.
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 10.
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 9
FIGURE 10
