Canadian installations
1
US installations
2
A
Clearance above grade, veranda, porch,
deck, or balcony
12 in (30 cm)
12 in (30 cm)
B
Clearance to window or door that may
be opened
6 in (15 cm) for appliances ≤
10,000 Btu/h (3 kW), 12 in (30
cm) for appliances > 10,000
Btu/h (3 kW)
and ≤ 100,000
Btu/h (30 kW), 36 in (91 cm)
for appliances > 100,000 Btu/
h (30 kW)
6 in (15 cm) for appliances ≤
10,000 Btu/h (3 kW), 9 in (23
cm) for appliances > 10,000
Btu/h (3 kW) and ≤ 50,000
Btu/h (15 kW), 12 in (30 cm)
for appliances > 50,000 Btu/h
(15 kW)
C
Clearance to permanently closed
window
*
*
D
Vertical clearance to ventilated soffit
located above the terminal within a
horizontal distance of 2 feet (61 cm)
from the center line of the terminal
*
*
E
Clearance to unventilated soffit
*
*
F
Clearance to outside corner
*
*
G
Clearance to inside corner
*
*
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
*
I
Clearance to service regulator vent
outlet
3 ft (91 cm)
*
J
Clearance to non-mechanical air supply
inlet to building or the combustion air
inlet to any other appliance
6 in (15 cm) for appliances ≤ 10,000
Btu/h (3 kW), 12 in (30 cm) for
appliances > 10,000 Btu/h (3 kW)
and ≤
100,000 Btu/h (30 kW), 36 in
(91 cm) for appliances > 100,000
Btu/ h (30 kW)
6 in (15 cm) for appliances ≤ 10,000
Btu/h (3 kW), 9 in (23 cm) for
appliances > 10,000 Btu/h (3 kW)
and ≤ 50,000 Btu/h (15 kW), 12 in
(30 cm) for appliances > 50,000
Btu/h (15 kW)
K
Clearance to a mechanical air supply
inlet
6 ft (1.83 m)
3 ft (91 cm) above if within 10 ft (3
m) horizontally
L
Clearance above paved sidewalk or
paved driveway located on public
property
7 ft (2.13 m)†
*
M
Clearance under veranda, porch deck, or
balcony
12 in (30 cm)‡
*
Notes:
1) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
* For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, one of the following shall be
indicated:
a) A minimum clearance value determined by testing in accordance with Clause 5.24.5; or
b) A reference to the following footnote:
“Clearance in accordance with local installation codes and the req
uireme
nts of the gas supplier.”
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two
single family dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimu
m of two sides beneath
the floor
.
PLEASE NOTE:
YOUR APPLIANCE MUST BE INSTALLED THE WAY PROVIDING ACCESS FOR FUTURE VENT
CONNECTION INSPECTIONS! YOUR BUILDING INSPECTOR MAY REQUIRE YOU TO PROVIDE ACCESS TO
VERIFY IF YOUR VENT CONNECTION HAS BEEN MADE IN ACCORDANCE WITH BUILDING CODE AND THIS
MANUAL INSTRUCTIONS REQUIREMENTS!
Summary of Contents for LEO/100
Page 6: ...DIMENSIONS...
Page 7: ......
Page 8: ...Figure 1 Leo series dimmensions...
