Rheem GHE80SU Use & Care Manual page 20

Figure 14. Typical Vertical Direct Vent System Installation
Alternate vertical venting with ex-
haust vent turned down - preferred
for cold climates.
Terminals spacing for horizontal or vertical venting.
L
C
24 in. (61 cm) Min.
Exhaust Vent
Terminal
NOTE:
For Model GHE119SU-500(A) If vent terminal are on the same
plane, use a 90° termincal on Exhaust Vent Terminal and 45°
terminal on Air-Inlet Terminal.
L
C
24 in. (61 cm) Min.
Exhaust Vent
Terminal
Installation
Straight Exhaust Terminal
Support Bracket
Water Heater
Floor
L
C
Combustion Air-Inlet
Terminal
L
C
Combustion Air-Inlet
Terminal
Min. 18 in. (46 cm) above Roof
Min. 12 in. (30.5 cm) above anticipated
snow level
Max. 24 in. (61 cm) above roof without
additional support)
Terminals with
1/2 in. (1.3
cm) Mesh Elbow
Protective
Screen
"D"
"D"
20
24" (61 CM) Min
(Support required).
90° Intake Terminal
"D"
"D"
Exhaust Vent
Short Piece of Pipe
Combustion Air-Inlet
-A-
-B-
d .008
-B-
d .010