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4 4
Termination Location and Vent Information
A. Chimney Diagram
C
FP
B
J
FP
D
FP
= AREA WHERE APPLIANCE IS NOT PERMITTED
X
= AIR SUPPLY INLET
A
= 0 inches...................clearances above grade, veranda,
B
= 12 inches.................clearance to window or door that
C
= 35-5/16 inches ........clearance below unventilated soffi t
35-5/16 inches ........clearance below ventilated soffi t
64-5/16 inches ........clearance below vinyl soffi ts and
D
= 9 inches...................clearance to outside corner
E
= 12 inches.................clearance to inside corner
F
= 3 ft. (Canada) ..........not to be installed above a gas me-
G
= 3 ft ...........................clearance to gas service regulator
H
= 9 inches (U.S.A)
12 inches (Canada) .clearance to non-mechanical (un-
i
= 3 ft. (U.S.A.)
6 ft. (Canada) ...........clearance to a mechanical (pow-
All mechanical air intakes within 10 feet of a termination cap
must be a minimum of 3 feet below termination.
J
= 54 in. ...................... On public property: clearance
A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
K
= 6 inches................. clearance from sides of electrical
L
= 12 inches................ clearance above electrical service
Location of the vent termination must not interfere with access to the
electrical service.
M
= 35-5/16 inches ............clearance under veranda, porch, deck,
64-5/16 inches .......vinyl or composite overhang
Permitted when veranda, porch, deck or balcony is fully open
on a minimum of 2 sides beneath the fl oor.
Figure 4.1 Minimum Clearances for Termination
Outdoor Lifestyles by Hearth & Home Technologies • Installation Manual TWILIGHT-II-MOD • 2290-970 Rev. H • 5/14
F
B
B
FP
FP
A
FP
= APPLIANCE OPENING
porch, deck or balcony
may be opened, or to permanently
closed window
electrical service
ter/regulator assembly within 3 feet
horizontally from the center-line of
the regulator
vent outlet
powered) air supply inlet, combus-
tion air inlet or direct-vent termina-
tion
ered) air supply inlet
above paved sidewalk or a paved
driveway.
service
balcony or overhang
H or i
X
FP
G
H
M
FP
FP
H
FP
(Spaces open only on one side and with an overhang)
N
= 6 inches ........... non-vinyl sidewalls
O
= 18 inches ......... non-vinyl soffi t and overhang
P
= 8 ft.
TWILIGHT-II-B
1 additional terminations
2 additional terminations
3 additional terminations
This appliance is approved for installation onto screened porches
with the following guidelines:
Minimum porch area: 96 square feet
Minimum ceiling height: 92 inches
Minimum two walls must be screened
Minimum top of screen height, side walls: 6 ft. 8 in.
Minimum screen area: 64 square feet
NOTE: There may be some odor and small amounts of soot
associated with venting the TWILIGHT-II-MOD onto a screened
porch. Ensuring good cross draft ventilation and routine maintenance
of the appliance will maximize comfort and cleanliness.
CAUTION! Risk of Burns! Terminations are HOT, consider
proximity to doors, traffi c areas or where people may
gather (sidewalk, deck, patio,
•
Local codes or regulations may require different clearances.
•
Vent system termination is permitted in porch areas with
two or more sides open.
•
Hearth & Home Technologies assumes no responsibility
for the improper performance of the appliance when the
venting system does not meet these requirements.
•
Vinyl protection kits are suggested for use with vinyl siding.
O
P
R
V
FP
L
A
K
Electrical
V
Service
C
V
Covered Alcove Applications
12 inches ......... vinyl sidewalls
42 inches ......... vinyl soffi t and overhang
Q
MIN
10 feet
Q + 3 feet
Q + 6 feet
Q + 9 feet
R
= (2 / # caps plus appliance) x Q
MAX
etc.).
N
FP
Q
K
V
R
MAX
2 x Q
ACTUAL
1 x Q
ACTUAL
2/3 x Q
ACTUAL
1/2 x Q
ACTUAL
ACTUAL
pass or
11
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