Heat & Glo • SOHO-N-AU • 2197-900 Rev. C • 9/09 9
Electrical
Service
V
S
VS
V
T
D*
V
MN
P
R
Q
V= VENT TERMINAL X= AIR SUPPLY INLET = AREA WHERE TERMINAL IS NOT PERMITTED
Figure 4.4 Minimum Clearances for Termination
A = 310 mm.................clearances abovegrade,veranda,
porch, deck or balcony
B = 500 mm.................clearances to window or door
thatmay be opened,orto perma-
nently closed window. (Glass)
D* = 310 mm.................vertical clearance to unventilated
soffitorto ventilated soffitlocated
above the terminal
760 mm..................for vinyl clad soffits and below
electrical service
F = 500 mm................clearance to outside corner
G = 500 mm.................clearance to inside corner
H = 910 mm.................not to be installed above a gas
meter/regulator assembly within
900 mm horizontally from the cen-
ter-line of the regulator
I = 1.8 m.....................clearancetogasserviceregulator
flue outlet
J = 310 mm...................clearance to non-mechanical
air supply inlet to building or the
combustion air inlet to any other
appliance
K = 1.8 m.......................clearance to a mechanical
(powered) air supply inlet
L** = 2.1 m.......................clearance above paved
sidewalk or a paved driveway
located on public property
m*** = 460 mm...................clearance under veranda, porch,
deck, balcony or overhang
1.1 m ......................vinyl
** aflue shallnot terminatedirectly abovea sidewalkor paveddriveway
whichis locatedbetween two single family dwellingsand servesboth
dwellings.
*** 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 7 feet above
a sidewalk, driveway, deck, porch, veranda or balcony, use of a listed cap
shield is suggested. (See flue components page)
NOTE 2: Termination in an alcove space (spaces open only on one side
andwith anoverhang) arepermitted withthe dimensionsspecified for vinyl
or non-vinyl siding and soffits. 1. There must be 2.7 m minimum between
termination caps. 2. All mechanical air intakes within 3 m of a termination
cap must be a minimum of 2.7 m below the termination cap. 3. All gravity
air intakes within 2.7 m of a termination cap must be a minimum of .31M
foot below the termination cap.
(See Note 1)
(See Note 1)
(See Note 2)
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 flue termination must not interfere with
access to the electrical service.
Heat& Gloassumes noresponsibility forthe improper performance
of the appliance when the flueing system does not meet these
requirements.
QMIN = # termination caps x 3 RMAX = (2 / # termination caps) x QACTUAL
Alcove Applications
S = 500 mm....................clearancefromsidesofelec-
trical service
T = 50 mm.......................clearance above electrical
service
(See Note 5)
(See Note 5)
See Notes 3 & 4
QMIN RMAX
1 cap .91 m 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
N = 150 mm ..................non-vinyl sidewalls
310 mm ..................vinyl sidewalls
P = 2.4 m
