4.4 TERMINATION LOCATION
CANADA
Refer to NFPA 211 (USA) or CSA B365 (Canada) for rules for the distance of exit terminal from windows and
openings. The exit terminal of a mechanical draft system, other than a direct vent appliance shall be located
in accordance with the following.
Min.
Clearances
A
12" (30 cm)
B
39" (100 cm) Clearance to window or door that may be opened.
F
39" (100 cm) Clearance to corner or adjacent wall or any combustible materials.
H
39" (100 cm) Not to be installed above a meter/regulator assembly within 39" (100 cm) horizontally
I
72" (183 cm) Clearance to gas service regulator vent outlet or within 39'' (100 cm) of an oil tank vent
J
39" (100 cm) Clearance to the combustion air inlet to any other appliance.
K
72" (183 cm) Clearance to a mechanical air supply inlet.
L
84" (213 cm) Clearance above paved side-walk or a paved driveway located on public property.
39" (100 cm) Clearance to property boundary.
United-States
•
Not Less than 36" (91 cm) above any forced air inlet located within 120" (305 cm);
•
Not Less than 48" (122 cm) below and horizontally from, or 12" (30 cm) above, any door, window or gravity
air inlet into any building;
•
Not Less than 24" (61 cm) from an adjacent building and not less than 84" (213 cm) above grade when
located adjacent to a public walkway;
•
Cannot be located less than 12" (30 cm) above grade;
•
Cannot be located above a gas meter/regulator within 36" (91cm) horizontally of the vertical center line of
the regulator;
•
Not within 6 feet (183 cm) of a gas service regulator vent outlet;
•
Other restrictions may apply. See NFPA 211 for further information.
INSTALLATION MANUAL ECO-55/ECO-55ST
Description
Clearances above grade level or any adjacent surface that might support snow, ice,
or debris.
from the vertical center-line of the regulator and for 15' vertically.
or an oil tank fill inlet.
A vent shall not terminate underneath a veranda, porch, or deck.
A vent shall not terminate directly above a sidewalk or a paved driveway which is lo-
cated between two single family dwelling and serves both dwellings.
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