16
INSTALLATION INSTRUCTIONS
Every vent pipe penetration of a floor or ceiling
that is not in a fire-rated shaft requires a fire stop
plate.
Failure to install and properly vent the water heater
to the outdoors as outlined on "Venting" can result
in unsafe operation.
Long hot water lines should be insulated to
conserve water and energy.
The water heater and water lines should be
protected from exposure to freezing temperatures.
General
• DO NOT install the water heater in
areas prohibited by National Fuel Gas
Code in U�S� installation or CAN/CSA
B149�1 in Canada installation�
• DO NOT install the water heater where
it is subject to vibrations�
• DO NOT install the water heater in
a recreational vehicle, boat, or other
watercraft�
• DO NOT install the water heater
near vents for heating and cooling�
If necessary, maintain a minimum
clearance of 4 ft� (1�2 m)�
Minimum water heater clearances from
combustible and noncombustible construction are
as follows:
– 1/2 in. (1.3 cm) for sides and front
– 0 in. (0 cm) for rear with support bracket(s)
– 12 in. (30 cm) from the bottom and top
NOTICE:
Preferred maintenance clearance is 24 in. (61 cm)
from top, bottom, and front of unit.
Minimum clearance around the coaxial vent pipe should
meet the specifications listed on the instruction/warning
label on the water heater� If no label is found, use
the vent manufacturer’s specifications or a minimum
clearance of 0 in� (0 cm) around the vent pipe�
Choosing a Location
Fire Stop Plate
(as required)
12" min.
(300 mm)
0" min.
(0 mm)
1/2" min.
(13 mm)
1/2" min.
(13 mm)
12" min.
(300 mm)
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