Filter
Top Products
iiiiiiiiiiiiiiiiiiiiiiiiiiiii i i! ii ii ! i ! !i ! ii i i i i i i i i i i i
Item
A
B
C
9
E
F
G
H
I
J
K
L
M
N
0
Other than Direct Vent Termination Clearance
IVIVENTTERMINAL AIRSUPPLVINLET
Clearance Descriptions Canadian Installation (1)
Clearance above grade, veranda, porch, deck, balcony, or 12" (30cm) #
anticipated snow level
Clearance to a window or door that may be opened
Clearance to a permanently closed window
Vertical clearance to aventilated soffit located above the ter-
minal within a horizontal distance of 2' (61cm) from the cent-
edine of theterminal
Clearance to an unventilated soffit
Clearance to anoutside corner
Clearance to an inside corner
Clearance to each side ofthe centedine extended above elec-
trical meter or gas service regulator assembly
Clearance to service regulator vent outlet
Clearance to non-mechanical air supply inlet to building or the
combustion air inletto anyother appliance
Clearanceto amechanicalairsupplyinlet
Clearanceundera veranda,porch,deck,or balcony
6" (15 cm) for appliances _< 10,000 BTUH (3kW), 12" (30
cm) for appliances > 10,000 Btuh (3 kW) and _<100,000 Btuh
(30 kW), 36" (91 cm) for appliances > 100,000 Bluh (30 kW)
3' (91cm) within 15' (4.5 m) above the meter/regulator
assembly
3' (91cm)
6" (15 cm)forappliances_<10,000BTUH(3kW),12" (30
cm)forappliances>10,000Btuh(3kW)and _<100,000Btuh
(30kW),36" (91cm)forappliances> 100,000Btuh(30kW)
6' (1.83m)
12" (30cm) +
Clearance to each side of the centedine extended above or *
below vent terminal of the furnace to a dryer or water heater
vent, or other appliance's direct vent intake or exhaust.
Clearance from a plumbing vent stack 3' (91cm)
Clearance above a paved sidewalk or paved driveway located 7' (2.13 m)
on public properly.
(I.) InaccordancewiththecurrentCSAB149.1,NaturalGasandPropanelnstaHationCode
(2.) In accordance with the current ANSI Z223.11NFPA 54, Nafional Fuel Gas Code
# 18" (46 cm) above roof surface
AREA WHERE TERMINAL IS NOT PERMITED
U.S. Installation (2)
12" (30 cm)
4' (1.2 m) below or to theside of the opening. 1' (30 cm)
above the opening.
3' (91 cm) within 15' (4.5 m) above the meter/regulator
assembly
4' (1.2 m) below or to the side of opening: 1' (30 cm) above
opening,
3' (91 cm) above if within 10' (3m) horizontally
3'(01cm)
7'(2.13m)
+ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
For clearances notspecified inANSI Z223.1/NFPA 54 or CSA B149.1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the manufacture's
installation instructions.
A vent shall not terminate directly above a sidewalk orpaved driveway that is located between two single family dwellings and serves both dwellings.
Notes:
1. The vent for this appliance shall not terminate
a. Over public walkways; or
b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create anusiance or hazard or property damage; or
c. Where condensate vapor could cause damage or could be detrimental to theoperafion of regulators, relief valves, or other equipment.
2. When locating vent terminations, consideration must begiven to prevailing winds, location, and other conditions which may cause recirculation of thecombusfiob products of adjacent vents.
Recirculafion cancause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.
441 O1 261302