20
Heat & Glo • GEM42 • 371-900 Rev. N • 2/05
V
= VENT TERMINAL
X
= AIR SUPPLY INLET
= AREA WHERE TERMINAL IS NOT PERMITTED
Figure 21. Vent Termination Minimum Clearances
A
= 12" ....................... clearances above grade, veran-
da, porch, deck or balcony
B
= 12" ....................... clearances to window or door
that may be opened, or to per-
manently closed window.
D*
= 18" ....................... vertical clearance to unventilat-
ed soffit or to ventilated soffit lo-
cated above the terminal
*30” ...................... for vinyl clad soffits and below
electrical service
F
= 9" ........................ clearance to outside corner
G
= 6" ......................... clearance to inside corner
H
= 3 ft. (Canada) ...... not to be installed above a gas
meter/regulator assembly within
3 feet (90cm) horizontally from the
center-line of the regulator
I
= 3 ft. (U.S.A.)
6 ft. (Canada) ...... clearance to gas service regu-
lator vent outlet
J
= 9" (U.S.A.)
12" (Canada) ........ clearance to non-mechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
K
= 3 ft. (U.S.A.)
6 ft. (Canada) ......... clearance to a mechanical
air supply inlet
L** = 7 ft. ......................... clearance above paved
sidewalk or a paved driveway
located on
public
property
M*** = 18" ......................... clearance under veranda,
porch, dec, balcony or over-
hang
42” ......................... vinyl
N
= 6” ........................... non-vinyl sidewalls
12” ......................... vinyl sidewalls
P
= 8 ft.
CAUTION:
IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE
INSTALLED.
**
a vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
*** only permitted if veranda, porch, deck or balcony is fully open on
a minimum of 2 sides beneath the floor, meets Note 2.
NOTE 1
: 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.
NOTE 2
: Termination in an 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.
All gravity air intakes within 3 feet of a termination cap must be
a minimum of 1 foot below the termination cap.
(See Note 1)
(See Note 1)
(See Note 2)
S = 6" .......................... clearance from sides of elec-
trical service
T = 12" ......................... clearance above electrical
service
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Q
MIN
R
MAX
1 cap
3 feet
2 x Q
ACTUAL
2 caps
6 feet
1 x Q
ACTUAL
3 caps
9 feet
2/3 x Q
ACTUAL
4 caps
12 feet
1/2 x Q
ACTUAL
Q
MIN
= # termination caps x 3 R
MAX
= (2 / # termination caps) x Q
ACTUAL
(See Note 5)
(See Note 5)
Electrical
Service
V
S
V
S
V
T
D*
V
NOTE 3
: Local codes or regulations may require different
clearances.
NOTE 4:
Termination caps may be hot. Consider their proximity to
doors or other traffic areas.
NOTE 5:
Location of the vent termination must not interfere with
access to the electrical service.
WARNING: In the U.S:
Vent system termination is
NOT
permitted
in screened porches. You must follow side wall, overhang and
ground clearances as stated in the instructions.
In Canada:
Vent system termination is
NOT
permitted in screened
porches. Vent system termination is permitted in porch areas
with two or more sides open. You must follow all side walls,
overhang and ground clearances as stated in the instructions.
Heat & Glo assumes no responsibility for the improper perfor-
mance of the fireplace when the venting system does not meet
these requirements.
D
E
B
L
v
v
v
v
v
v
v
v
B
B
A
H
M
X
J or K
I
A
G
F
U.S.
(3 FT)
B
M
N
P
R
Q
