Quadra-Fire QVI-30FB Horizontal Overhang, Minimum Height from Roof to Lowest Discharge Opening

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.

2 FT. MIN.

TERMINATION CAP

HORIZONTAL OVERHANG

2 FT. MIN. VERTICAL WALL

LOWEST

DISCHARGE

OPENING

X

12

ROOF PITCH IS X/ 12

H (MIN.) - MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING

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

Quadra-Fire • QVI-30FB • 2020-900 Rev. H • 9/07 13