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Slide the gas insert into place, and
position any excess flexible vent pipe back
up into the chimney. Attach the pipe-to-
cap adaptor to the termination cap and
to the top of the flexible vent pipe and set
the cap in place at the top of the chimney.
See Figures 4 and 5.
CAUTION: TO AVOID DOWNDRAFTS
AND/OR COLD AIR PROBLEMS, IT IS
RECOMMENDED TO SEAL OFF THE
AREA BETWEEN THE TERMINATION
CAP AND THE TOP OF THE SOLID-
FUEL CHIMNEY OPENING INTO
WHICH THE VENT CAP HAS BEEN IN-
STALLED.
WHEN USING THE LINK-DV4-30 VENT
SYSTEM, IT IS REQUIRED TO SEAL
AROUND THE FLEXIBLE VENT PIPES
IN THE DAMPER AREA. SEE FIGURE
5. USE FIBERGLASS INSULATION OR
OTHER SUITABLE NON-COMBUSTI-
BLE MATERIAL.
WARNING: MAJOR U.S.
!
BUILDING CODES SPECIFY
MINIMUM CHIMNEY AND/OR VENT
HEIGHT ABOVE THE ROOF TOP.
THESE MINIMUM HEIGHTS ARE
NECESSARY IN THE INTEREST OF
SAFETY. SEE THE FOLLOWING
DIAGRAM FOR MINIMUM HEIGHTS,
PROVIDED THE TERMINATION CAP
IS AT LEAST 2-FEET FROM A VER-
TICAL WALL AND 2-FEET BELOW
A HORIZONTAL OVERHANG.
NOTE: This also pertains to vertical vent
systems installed on the outside of the
building.
2 FT.
MIN.
TERMINATION CAP
Roof Pitch
flat to 6/12
6/12 to 7/12
over 7/12 to 8/12
over 8/12 to 9/12
over 9/12 to 10/12
over 10/12 to 11/12
over 11/12 to 12/12
over 12/12 to 14/12
over 14/12 to 16/12
over 16/12 to 18/12
over 18/12 to 20/12
over 20/12 to 21/12
Figure 3. Minimum Height from Roof to Lowest
Discharge Opening
15
HORIZONTAL OVERHANG
VERTICAL WALL
2 FT. MIN.
LOWEST
DISCHARGE
OPENING
X
12
ROOF PITCH IS X/ 12
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
H (min.) ft.
1.0
1.25
1.5
2.0
2.5
3.25
4.0
5.0
6.0
7.0
7.5
8.0
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