
Heat & Glo • RED60 • 2159-900 Rev. B • 12/09
36
NOTE
: Maximum total vent run= Total vertical vent run + Total horizontal vent run
V1
H1
H2
H3
V2
MAXIMUM
VERTICAL
DROP
DIRECT VENT WITH 2 FT. MINIMUM VERTICAL OFF TOP OF APPLIANCE
MAX. ELBOWS
(45° & 90°)
MAX. TOTAL VENT RUN
Total V + Total H (FT.)
MAX. VERT. DROP
V
2
(FT.)
3
26 ft.
7 ft.
4
16 ft.
7 ft.
5
16 ft.
7 ft.
1 ft. vertical drop decreases horizontal length by 2 ft.
Note
: 1 ft. of vertical drop decreases
horizontal length by 2 ft.
Figure 7.27 Power Vent
DIRECT VENT WITH 3 FT. MINIMUM VERTICAL OFF TOP OF APPLIANCE
MAX. ELBOWS
(45° & 90°)
MAX. TOTAL VENT RUN
Total V + Total H (FT.)
MAX. VERT. DROP
V
2
(FT.)
3
30 ft.
7 ft.
4
22 ft.
7 ft.
5
22 ft.
7 ft.
1 ft. vertical drop decreases horizontal length by 2 ft.
DIRECT VENT WITH 4 FT. MINIMUM VERTICAL OFF TOP OF APPLIANCE
MAX. ELBOWS
(45° & 90°)
MAX. TOTAL VENT RUN
Total V + Total H (FT.)
MAX. VERT. DROP
V
2
(FT.)
3
45 ft.
7 ft.
4
38 ft.
7 ft.
5
30 ft.
7 ft.
6
22 ft.
7 ft.
1 ft. vertical drop decreases horizontal length by 2 ft.