13
INSTALLATION CONSIDERATIONS
INSTALLATION CONSIDERATIONS
LOCATING THE WATER HEATER
Carefully choose a location for the new water heater. The placement
is a very important consideration for the safety of the occupants in
the building and for the most economical use of the water heater.
Property Damage Hazard
All water heaters eventually leak.
•
Do not install without adequate drainage.
•
CAUTION
Whether replacing an existing water heater or installing the water
heater in a new location observe the following critical points:
1.
The water heater must be located indoors.
2.
The water heater must not be located in an area where it will be
subject to freezing temperatures.
3.
Locate the water heater so it is protected and not subject to
physical damage by a moving vehicle.
4.
Locate the water heater on a level surface.
5.
Locate the water heater near a floor drain. The water heater
should be located in an area where leakage of the tank or
connections will not result in damage to the area adjacent to
the water heater or to lower floors of the structure. When such
locations cannot be avoided, it is recommended that a metal drain
pan, piped to adequate drain, be installed under the water heater.
Drain pan should be fabricated with sides at least 2” deep with
diameter at least 2” greater than diameter of heater.
6.
Locate the water heater close to the point of major hot water
usage.
7.
Locate the water heater close to a 120 VAC power supply. See
for requirements.
8.
Locate the water heater where an adequate supply of fresh air
for combustion and ventilation can be obtained. See
.
9.
Locate the water heater where the vent and intake air piping,
when installed, will remain within the maximum equivalent lengths
allowed. See
.
10.
Do not locate the water heater where noise (such as the
Combustion Blower) during normal operation will be objectionable
in adjacent areas.
11.
Do not locate the water heater where the subsequent installation
of the vent (exhaust) or intake air terminations would be
objectionable due to noise at the termination(s). This includes
locations close to or across from windows and doors. See
Do not locate water heater areas where flammable liquids (vapors)
are likely to be present or stored (garages, storage and utility areas,
etc.): Flammable liquids (such as gasoline, solvents, propane (LP or
butane, etc.) and other substances (such as adhesives, etc.) emit
flammable vapors which can be ignited by a gas water heater’s
ignition device or main burner. The resulting flashback and fire can
cause death or serious burns to anyone in the area.
Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
When the water heater is installed directly on carpeting, the water
heater shall be installed on a metal or wood panel extending beyond
the full width and depth of the water heater by at least 3 in (76.2
mm) in any direction or, if the water heater is installed in an alcove or
closet, the entire floor shall be covered by the panel. The panel must
be strong enough to carry the weight of the heater when full of water.
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