Heat-N-Glo BAY-INS Installer's Manual page 10

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. FIGURE 2 SHOWS MINIMUM
HEIGHTS, PROVIDED THE
TERMINATION CAP IS AT LEAST
2-FEET FROM A VERTICAL WALL AND
2-FEET BELOW A HORIZONTAL
OVERHANG.
NOTE: This also pertains to vertical vent systems
installed on the outside of the building.
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 2. Minimum Height from Roof to Lowest
7
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