Instructions / Assembly

20
Installing the water heater
The location of the vent terminal depends on the
following minimum clearances and considerations.
Minimum 12 in. (30.5 cm) above roof.
Minimum 12 in. (30.5 cm) above anticipated
snow level.
Maximum 24 in. (61cm) above roof level
without additional support for vent.
Four (4) ft. (1.22 m) from any gable, dormer or
other roof structure with building interior access
(i.e., vent, window, etc.).
Ten (10) ft. (3.05m) from any forced air inlet to
the building. Any fresh or make-up air inlet
such as a dryer or furnace area is considered to
be a forced air inlet.
Maintain a minimum horizontal distance of 12
in. (30.5 cm) between the vent and combustion
air-inlet terminal centerlines.
Maintain a minimum distance from the vent and
the combustion air-inlet terminals of not less
than 12 in. (30.5 cm) above grade or average
snowfall, whichever is greater.
Read these instructions thoroughly and make sure
you understand all steps and procedures before
proceeding with the installation.
Determine the locations for the vent terminal then
make a hole through the roof and interior ceiling(s) to
accommodate the vent pipe.
Assemble the vent pipe assembly.
Install the vent system and attach it to the vent
connector fitting on the water heater’s blower
assembly.
Horizontal lengths of the vent system must slope
towards the water heater a minimum of 1/8 in.
per foot (10 mm per m).
• Support vertical and horizontal lengths of the
vent system as previously mentioned.
• Determine the vent terminal height and cut the
pipe accordingly.
• Insert length of vent pipes through the ceiling
wall as shown.
• Install adequate flashing where the vent pipe pass
through the roof.
• Connect a short piece of pipe approximately 3 in.
(7.6 cm) in length between terminal and elbow.
• Place the supplied 1/2 in. (1.3 cm) mesh metal
screen inside the terminal fitting then connect a
short piece of pipe approximately 3 in. (7.6 cm)
in length between the terminal and elbow.
NOTICE: For cold climates, the screens may be
removed.
Vertical Vent Installation
-B-
d .008
d .010
# Min. 12 in.
(30.5 cm) Above Roof or
Anticipated Snow Level;
which
ever is highest
and
Max. 24 in. (61 cm)
Above Roof
(Without Additional
Support)
Terminals with Mesh
Protective Screen.
Note: Termination Restrictors
used on 75 Gallon models ONLY
Terminal
Short Piece of Pipe
Elbow
Optional Condensate
Management Drain Port
Exhaust Vent
#