28
V
= VENT TERMINAL
X
= AIR SUPPLY INLET
= AREA WHERE TERMINAL IS NOT PERMITTED
Figure 25 Vent Termination Minimum Clearances
L
= 2.1 M ........................ clearance above paved side-
walk or a paved driveway lo-
cated on
public
property
M*
= 50.8 cm ................... clearance under veranda, porch,
deck, balcony or overhang
118.9 cm ................. vinyl
CAUTION:
IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE INSTALLED.
* only permitted if veranda, porch, deck or balcony is fully open on a
minimum of 2 sides beneath the floor, or meets Note 2.
NOTE 1
: On private property where termination is less than 2.1 M
above a sidewalk, driveway, deck, porch, veranda or balcony, use of
a listed cap shield is suggested. (See vents components page)
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 91.4 cm minimum
between termination caps.
2.
All mechanical air intakes within 3.0 M of
a termination cap must be a minimum of 91.4 cm below the termination
cap.
3.
All gravity air intakes within 91.4 cm of a termination cap must
be a minimum of 30.5 cm below the termination cap.
M
N
P
R
Q
(See Note 2)
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.
NOTE:
Vent system termination is permitted in porch areas with
two or more sides open. You must follow all side walls, over-
hang and ground clearances as stated in the instructions.
Heat-N-Glo assumes no responsibility for the improper perfor-
mance of the appliance 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
91.4 cm
B
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Q
MIN
R
MAX
1 cap
91.4 cm
2 x Q
ACTUAL
2 caps
1.8 M
1 x Q
ACTUAL
3 caps
2.7 M
2/3 x Q
ACTUAL
4 caps
3.7 M
1/2 x Q
ACTUAL
Q
MIN
= # termination caps x 3 R
MAX
= (2 / # termination caps) x Q
ACTUAL
N
= 15.3 cm ................... non-vinyl sidewalls
30.5 cm ................... vinyl sidewalls
P
= 2.4 M
Alcove Applications
S = 15.3 cm .................... clearance from sides of
electrical service
T = 30.5 cm ..................... clearance above electrical
service
(See Note 5)
(See Note 5)
A
= 30.5 cm ................. clearances above grade, ve ran-
da, porch, deck or balcony
B
= 30.5 cm ................. clearances to window or door
that may be opened, or to per-
manently closed window.
(Glass)
D
= 50.8 cm ................. vertical clearance to unventilat-
ed soffit or to ventilated soffit lo-
cated above the terminal
= 84.8 cm ................. for vinyl clad soffits and below
electrical service
F
= 22.9 cm ................ clearance to outside corner
G
= 15.3 cm ................. clearance to inside corner
H
= 91.4 cm ................. not to be installed above a gas
meter/regulator assembly within
91.4 cm horizontally from the cen-
ter-line of the regulator
I
= 91.4 cm ................. clearance to gas service regu-
lator vent outlet
J
= 22.9 cm ................... clearance to non-mechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
K
= 91.4 cm ................... clearance to a mechanical (pow-
ered) a ir supply inlet
(See Note 1)
(See Note 1)