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VERTICALLY INTO EXISTING MASONRY FIREPLACE
NOTE: Follow 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 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.
FOLLOW CHIMNEY OR
VENT MANUFACTURER'S
INSTRUCTIONS
3"
VERTICAL ROOF VENT
TOP PLATE
BLANKING PLATE
OPTIONAL
OUTSIDE AIR
CLEAN OUT
TEE
18"
Figure 12
Venting through masonry
chimney
INSTALLATION THROUGH SIDE OF MASONRY CHIMNEY
NOTE: Follow 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.
Install the trim collar. An adjustable pipe length and adapter may be
needed to finish the connection to the stove.
WALL
THIMBLE
OPTIONAL
OUTSIDE AIR
FOLLOW CHIMNEY OR
VENT MANUFACTURER'S
INSTRUCTIONS
CLEAN OUT
TEE
TOP PLATE
VERTICAL ROOF VENT
3"
18"
Figure 13
Venting through side of
masonry chimney