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Installation continued-
VENTING
This is a Direct Vent Gas Water Heater where all air for combustion is
obtained from the outside atmosphere and all flue gases are discharged to the
outside atmosphere.
WARNING
The vent-air intake system must be properly installed. Failure to
properly install the vent-air intake system properly could result in
property damage, personal injury or death.
DO NOT install any damaged vent-air intake system components.
Contact the manufacturer of the water heater for replacement parts.
Direct Vent-Air Intake Terminal (See Figure 4)
• Shall be installed with at least a 9 in. (22.9 cm) vent termination
clearance from any air opening into a building.
• The bottom of the direct vent-air intake terminal shall be located at
least 12 in. (30.5 cm) above grade.
• Installed at least 3 ft. (91.4 m) from any gas meter, gas valve or
other gas regulating equipment.
• Must be installed in a location where it will not be blocked by snow.
Note: Provide protection of the building materials from degradation by flue
gases from the direct vent-air intake terminal.
Exceptions for Installations in Canada
The direct vent-air intake terminal shall not terminate:
(a) directly above a paved sidewalk or paved driveway which is located
between two single-family dwellings and serves both dwellings;
(b) less than 7 ft. (2.1 m) above a paved sidewalk or a paved driveway
located on public property;
(c) within 6 ft. (1.8 m) of a mechanical air supply inlet to any building;
(d) above a gas meter/regulator assembly within 3 ft. (91.4 cm) horizontally
of the vertical centerline of the regulator;
(e) within 6 ft. (1.8 m) of any gas service regulator vent outlet;
(f) less than 12 in. (30.5 cm) above grade level;
(g) within 12 in. (30.5 cm) of a window or door which can be opened in any
building, any non-mechanical air supply inlet to any building or the
combustion air inlet of any other appliance:
INTERNET VERSION FOR REFERENCE ONLY