CFC-E Installation Manual
Part No. 750-459 2-3
Canada Installations (refer also to the latest edition of CAN/CSA-B149.1 and B149.2):
A vent shall not terminate:
• Directly above a paved sidewalk or driveway which is located between two single family dwellings and serves
both dwellings.
• Less than 7 ft. (2.13m) above a paved sidewalk or paved driveway located on public property.
• Within 6 ft. (1.8m) of a mechanical air supply inlet to any building.
• Above a meter/regulator assembly within 3 ft. (900mm) horizontally of the vertical center-line of the regulator.
• Within 6 ft. (1.8m) if any gas service regulator vent outlet.
• Less than 1 ft. (300mm) above grade level.
• Within 3 ft. (1m) of a window or door which can be opened in any building, any non-mechanical air supply inlet to
any building to the combustion air inlet of any other appliance.
• Underneath a veranda, porch or deck, unless:
The veranda, porch or deck is fully open on a minimum of two sides beneath the floor.
The distance between the top of the vent termination and the underside of the veranda, porch or deck is
greater than 1 ft. (30cm)
Note: For direct vent installations where the air is piped in from outside, a protective screen on the
air inlet termination elbow must be used to act as an inlet screen.
Venting Installation Tips
Where to use piping supports:
• Horizontal runs - at least every five (5) feet.
• Vertical runs - use braces.
• Under or near elbows
Consult vent manufacturer’s recommendations for additional installation guidelines.
!
Warning
Examine the venting system at least once a year. Check all joints and
vent pipe connections for tightness, corrosion or deterioration.
!
Caution
In order to avoid personal injury or property damage:
• Cut nonmetallic vent pipe with a fine-toothed hacksaw (34 teeth per inch).
• Do not use nonmetallic vent pipe or fittings that are cracked or damaged.
• Do not use nonmetallic vent fittings if they are cut or altered.
• Do not drill holes, or use screws or rivets, in nonmetallic vent pipe or fittings.
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