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Installation Checklist
A. Water Heater Location
B. Water Supply
C. Gas Supply
D. Relief Valve
E. Venting
❑ Close to area of vent.
❑ Indoors and protected from freezing
temperatures.
❑ Proper clearance from combustible surfaces
observed and water heater not installed on
carpeted floor.
❑ Sufficient fresh air supply for proper
operation of water heater.
❑ Air supply free of corrosive elements and
flammable vapours.
❑ 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
base of the heater.
❑ Clearances of 1”(2.54 cm) from combustion
air inlet openings observed
❑ Flammable vapour sensor is not blocked.
❑ Water heater completely filled with water.
❑ Air purged from water heater and piping.
❑ Water connections tight and free of leaks.
❑ Gas line equipped with shut-off valve, union
and sediment trap.
❑ The required inlet gas pressure to the water
heater is shown on the water heater rating
plate.
❑ Pressure test as Required in B149.
❑ Soap and water solution used to check all
connections and fittings for possible gas
leak.
❑ Gas Company inspected installation
(if required).
❑ Temperature and Pressure Relief Valve
properly installed and discharge line run to
open drain.
❑ Discharge line protected from freezing.
❑ Heater vented separately from all other
appliances.
❑ Flue baffle properly hung in top of heater’s
flue.
❑ Blower assembly properly installed.
❑ Proper materials and techniques used in vent
assembly.
❑ Vent pipe properly secured to blower
housing.
❑ Vent pipe supported at required intervals.
❑ Appropriate minimum clearances observed.
❑ Precautions taken to prevent moisture
damage around vent termination.
❑ Vapours from vent pipe cement and primer
have dissipated prior to applying electrical
power.
F. Wiring
❑ Correct power supply (120 V).
❑ Electrical connections tight.
❑ Heater properly grounded and proper
polarity observed.
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