A. Outdoor Water Heater Location
q
Outdoor water heaters must be installed outdoors.
q
Protected from freezing temperatures.
B. Indoor Water Heater Location
q
Close to area of vent termination.
q
Indoors and protected from freezing temperatures.
C. Outdoor and Indoor Water Heater Location
q
Proper clearance from combustible surfaces observed.
q
Sufficient fresh air supply for proper operation of
water heater.
q
Air supply free of corrosive elements and
flammable vapors.
q
Provisions made to protect area from water damage.
q
Sufficient room to service heater.
q
Combustible materials, such as clothing, cleaning
materials, rags, etc. clear of the heater and
vent piping.
q
Water heater is properly attached to the wall.
D. Water Supply
q
Water supply has sufficient pressure.
q
Air purged from water heater and piping.
q
Water connections tight and free of leaks.
q
Water filter is clean and in place.
q
Materials used are as instructed in this manual.
q
Water pipes are insulated and protected from
freezing.
E. Gas Supply
q
Gas type matches rating plate.
q
Gas supply pressure is sufficient for the water heater.
q
Gas line equipped with shut-off valve, union and
sediment trap.
q
Approved pipe joint compound used.
q
Soap and water solution used to check all connections
and fittings for possible gas leak.
q
Gas Company inspected installation (if required).
F. Relief Valve
q
Pressure Relief Valve properly installed and discharge
line run to open drain.
q
Discharge line protected from freezing.
G. Venting (Indoor Water Heaters Only)
q
Vent pipe material should be category III and meet
UL1738 in US and ULC S636 in Canada.
q
Vent connector(s) pitched (1/4” per foot of length
minimum) DOWNWARD or UPWARD to
termination. If UPWARD, a condensate trap must be
installed close to the heater. See page 14.
q
Vent connector(s) securely fastened together with
high temperature silicone (500°F [260°C]) and
air-tight.
q
All vent runs are properly supported.
q
Vent terminal is properly installed.
q
Sufficient combustion air is available.
q
Maximum and minimum vent lengths are observed.
H. Electrical Wiring
q
Voltage matches rating plate.
q
Water heater is properly grounded.
q
Supply cord and/or wiring meets all local codes.
Installation Check List
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