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Selecting heater location
Before proceeding, read the water heater installation
manual. If the information in that manual is not followed
exactly, a fire, explosion or poisoning by carbon monox-
ide may result causing property damage, personal injury
or death.
B Choose an outside wall for the installation.
Installation on a wall protected by an overhang above
is recommended.
B Size the water and gas connections according to the
instructions in the water heater installation manual.
Use unions when connecting both water lines and
gas supply line to the heater.
Minimum clearances
If the appliance is installed under an overhang, there
must be a 36" clearance from the top of the appliance
and the mounting area must be open in front and on the
sides of the appliance.
Fig. 1
Ref.
Description
A
Directly below or adjacent to
an opening; operable
B
windows, doors and any fresh
air openings
C
D
From any adjacent wall
Below a gutter, sanitary
E
pipework, eaves or overhang
F
Above ground
From a gas meter or gas
G
regulator
Table 1 Clearances
6 720 608 835
i
Min.
distances
≥ 1 ft
≥ 4 ft
≥ 3 ft
≥ 1 ft
≥ 5 ft
Selecting heater location
Best practice note: The clearances in
Fig. 1 and table 1 are the minimum
allowed by the standard.
When possible consider maximizing the
clearances A, B and C to allow for the
effects of wind and frequently used door
and window openings.
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