Termination Location And Vent Information; Vent Terminal Clearances - Outdoor Lifestyles TWILIGHT-II-MDC Installation Manual

4

Termination Location and Vent Information

A. Vent Terminal Clearances

C
FP
J
FP
U.S.A. Installations: In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
Canadian Installations: In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
Vertical distances measured from top of hood. Horizontal distances measured from side of hood.
A Clearance above grade,veranda, porch, deck, or balcony
Clearance to window or door that may be opened, or to permanently closed window
B
U.S.A.: = 12 in. min. (305 mm min.)
clearance below unventilated soffit
C
clearance below ventilated soffit
clearance below any vinyl soffits and electrical service
D clearance to outside corner
E clearance to inside corner
not to be installed above a gas meter/regulator assembly within 3 feet horizontally from
F
the center-line of the regulator
G clearance to gas service regulator vent outlet
clearance to non-mechanical air supply inlet to building or the combustion air inlet to
H
any other appliance termination (mechanical or non-mechanical)
clearance to a mechanical (powered) air supply inlet
I ***(All mechanical air intakes within 10 feet of a horizontal termination cap must be
a minimum of 3 feet below termination.)
On public property: clearance above paved sidewalk or a paved driveway.
J
**(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
K
Location of the vent termination must not interfere with access to the electrical service.
clearance above electrical service
L
Location of the vent termination must not interfere with access to the electrical service.
clearance under veranda, porch, deck, balcony or overhang
*(Permitted only if veranda, porch, deck, or balcony is fuly open on a minimum of two
sides beneath the floor.)
M
Note: See Section 2.A "Design and Installation Considerations.
vinyl or composite overhang
Figure 4.1 Minimum Clearances for Termination
12 Outdoor Lifestyles by Hearth & Home Technologies • TWILIGHT-II-MDC Installation Manual • 2369-970 Rev. L • 8/19
B
B
FP
D
FP
FP
CANADA: = 12 in. min. (305 mm min.)
X
FP
F
B
X
G
M
FP
A
= AREA WHERE TERMINAL IS NOT PERMITTED
= AIR SUPPLY INLET
= FIREPLACE
FP
H or i
FP
H
FP
FP
FP
H
A
U.S.A.
0 in. (0 mm)
35-5/16 in.
(897 mm)
35-5/16 in.
(897 mm)
64-5/16 in. (1.6 m)
9 in. (229 mm)
12 in. (305 mm)
3 ft (914 mm)
3 ft (914 mm)
9 in. min.
(229 mm min.)
3 ft (914 mm)***
54 in. (1.3 m)
6 in. (152 mm)
12 in. (305 mm)
36 in.
(914 mm)
64-5/16 in. (1.6 m)
FP
L
K
K
Electrical
FP
Service
C
FP
CANADA
0 in. (0 mm)
35-5/16 in.
(897 mm)
35-5/16 in.
(897 mm)
64-5/16 in. (1.6 m)
9 in. (229 mm)
12 in. (305 mm)
3 ft (914 mm)
3 ft (914 mm)
12 in. min.
(305 mm min.)
6 ft (1.8 3m)
54 in. (1.3 m)**
6 in. (152 mm)
12 in. (305 mm)
36 in.
(914 mm)*
64-5/16 in. (1.6 m)