TYPICAL VENT INSTALLATIONS - HORIZONTAL TERMINATION
Allowable 3" vent connections (excluding fi replace and air terminal connections)
Rise per foot (recommended)
Rise per foot (allowable)
Horizontal run (If vent run does not include vertical rise)
Horizontal run (if vent run includes vertical rise)
Vertical run
(* Immediately off the fi replace, if 7 FT maximum horizontal run is required)
See graph to determine the required vertical rise V
horizontal rise H
.
T
10
9
8
7
6
REQUIRED
VERTICAL
5
RISE IN
FEET (V
)
T
4
3
2
1.5
1
0
1
HORIZONTAL VENT RUN PLUS OFFSET IN FEET (H
FIGURE 2a
4" MIN.
24" MAX.
for the required
T
2
3
4
5
6
MAXIMUM
HORIZONTAL
18"
4"
MIN.
FIGURE 2b
MIN
MAX FIGURE
N/A
1/4"
N/A
0"
N/A
4"
24"
4"
7 FT
18"*
7 FT
7
8
9
10
)
T
7 FT MAX.
8"
1
2a
2b
2b, 2c
8"
4"
MIN.
FIGURE 2c
W415-0619 / B / 03.03.08
7
9 FT
MAX.
MAXIMUM
VERITICAL