
Page 20 Installation Manual - SRF40
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VENT TERMINAL
SORTIE DU TUYAU D’EVACUATION
VAIR SUPPLY INLET
ENTRÉE D’AIR FRAIS
AAREA WHERE TERMINAL IS NOT PERMITTED
ZONE OU LA SORTIE N’EST PAS PERMISE
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VENT TERMINAL
SORTIE DU TUYAU D’EVACUATION
V
AIR SUPPLY INLET
ENTRÉE D’AIR FRAIS
AAREA WHERE TERMINAL IS NOT PERMITTED
ZONE OU LA SORTIE N’EST PAS PERMISE
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VENT TERMINAL
SORTIE DU TUYAU D’EVACUATION
VAIR SUPPLY INLET
ENTRÉE D’AIR FRAIS
A
AREA WHERE TERMINAL IS NOT PERMITTED
ZONE OU LA SORTIE N’EST PAS PERMISE
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VENT TERMINAL
SORTIE DU TUYAU D’EVACUATION
VAIR SUPPLY INLET
ENTRÉE D’AIR FRAIS
AAREA WHERE TERMINAL IS NOT PERMITTED
ZONE OU LA SORTIE N’EST PAS PERMISE
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DESCRIPTION CANADA1UNITED STATES2
AClearance above grade, veranda,
porch, deck, or balcony 12 in (30 cm) 12 in (30 cm)
BClearance to window or door that
may be open
12 in (30 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 100,000 Btuh (30 kW)
9 in (23 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 50,000 Btuh (15 kW)
CClearance to permanently closed
window 12 in (30 cm) 12 in (30 cm)
D
Vertical clearance ventilated soffit
located above the terminal within a
horizontal distance of 2 feet (61 cm)
from the center line of the terminal
18 in (46 cm) 18 in (46 cm)
EClearances to unventilated soffit 18 in (46 cm) 18 in (46 cm)
FClearance to outside corner see page 41 see page 41
GClearance to inside corner see page 41 see page 41
H
Clearance to each side of center
line extended above meter/
regulator assembly
3 ft (91 cm) within a height 15 ft (4.5 m) above
the meter/regulator assembly 3 ft (91 cm)
IClearance to service regulator
vent outlet 3 ft (91 cm) 61 in (1.55 m)
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Clearance to nonmechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
12 in (30 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 100,000 Btuh (30 kW)
9 in (23 cm) for appliances > 10,000 Btuh (3 kW)
and ≤ 50,000 Btuh (15 kW)
KClearance to a mechanical air
supply inlet 6 ft (1.83 m) 3 ft (91 cm) above if within 10 ft (3 m) hori-
zontally
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Clearance above paved sidewalk
or paved driveway located on
public property
7 ft (2.13 m)37 ft (2.13 m)4
MClearance under veranda, porch
deck, or balcony 12 in (30 cm)412 in (30 cm)
1In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
2In Accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
3A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
4Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.