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