Quadra-Fire • QVI-30FB • 2020-900 Rev. H • 9/07
13
!
Attach the flashing and termination cap
to the top of the flexible vent pipe and set
the cap in place. 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 4.
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.
Roof Pitch
H (min.) ft.
flat to 6/12
1.0
6/12 to 7/12
1.25
over 7/12 to 8/12
1.5
over 8/12 to 9/12
2.0
over 9/12 to 10/12
2.5
over 10/12 to 11/12
3.25
over 11/12 to 12/12
4.0
over 12/12 to 14/12
5.0
over 14/12 to 16/12
6.0
over 16/12 to 18/12
7.0
over 18/12 to 20/12
7.5
over 20/12 to 21/12
8.0
Figure 3. Minimum Height from Roof to Lowest
Discharge Opening
HORIZONTAL OVERHANG
VERTICAL WALL
TERMINATION CAP
12
X
ROOF PITCH IS X/ 12
LOWEST
DISCHARGE
OPENING
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
2 FT.
MIN.
2 FT. MIN.
