Vent Termination; Horizontal Termination Clearance Diagram - ORTAL 40 Series Installation And Operation Manual

Vent Termination

Horizontal Termination Clearance Diagram

Location Country Minimum Clearance
US &
A
Canada
≤ 50,000 BTU: 9 inches
US
> 50,000 BTU: 12 inches
B
Canada
US &
C
Canada
US &
D
Canada
US &
E
Canada
US
F
Canada
US &
G
Canada
US
H
Canada
US
I
Canada
J* US &
Canada
US &
K
Canada
US &
L
Canada
42
Clearance above grade, veranda, porch, deck or balcony.
12 inches
NOTE: On private property where termination is less than 7 feet above a sidewalk, driveway,
deck, porch, veranda or balcony, use of a listed cap shield is suggested.
Clearance to an operable window or door.
12 inches
24 inches Vertical clearance to a ventilated soffit located above the vent termination.
18 inches Vertical clearance to an unventilated soffit located above the vent termination.
42 inches Vertical clearance to vinyl clad soffits and below electrical service.
9 inches Clearance to an outside corner.
6 inches Clearance to an inside corner.
N/A
Not to be installed above a gas meter/regulator assembly within 3 feet (90 cm) horizontally
from the center-line of the regulator.
3 feet
3 feet Clearance to gas service regulator vent outlet.
Clearance to a non-mechanical air supply inlet to the building or the combustion air inlet to
any other appliance.
9 inches
NOTE: Termination in a covered alcove space (spaces open only on one side and with an
overhang) are permitted with the dimensions specified for vinyl or non-vinyl siding and soffits.
1. There must be 3 feet minimum between termination caps. 2. All mechanical air intakes
within 10 feet of a termination cap must be a minimum of 3 feet below the termination cap. 3.
12 inches
All gravity air intakes within 3 feet of a termination cap must be a minimum of 1 foot below
the termination cap.
Clearance to a mechanical (powered) air supply inlet.
3 feet
NOTE: Termination in a covered alcove space (spaces open only on one side and with an
overhang) are permitted with the dimensions specified for vinyl or non-vinyl siding and soffits.
1. There must be 3 feet minimum between termination caps. 2. All mechanical air intakes
within 10 feet of a termination cap must be a minimum of 3 feet below the termination cap. 3.
6 feet
All gravity air intakes within 3 feet of a termination cap must be a minimum of 1 foot below
the termination cap.
Clearance above paved sidewalk or a paved driveway located on public property.
NOTE: On private property where termination is less than 7 feet above a sidewalk, driveway,
7 feet
deck, porch, veranda, or balcony, use of a listed cap shield is suggested.
*a vent shall not terminate directly above a sidewalk or paved driveway which is located
between two single family dwellings and serves both dwellings.
Clearance from sides of electrical service.
6 inches
NOTE: Location of the vent termination must not interfere with access to the electrical
service.
Clearance above electrical service.
12 inches
NOTE: Location of the vent termination must not interfere with access to the electrical
service.
Description