Brant Radiant Heaters LD Series Operation, Installation, Maintenance And Parts Manual page 20

2 INSTALLATION
A= Clearance above grade, veranda,
porch, deck or balcony
B= Clearance to window or door that may
be opened
C= Clearance to permanently closed
window
D= Vertical clearance to ventilated soffit
located above the terminal within a
horizontal distance of 2 feet (61cm)
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
I= Clearance to service regulator vent
outlet
J= Clearance to nonmechanical air supply
inlet to building or the combustion air
inlet for any other appliance
K= Clearance to a mechanical air supply
inlet
L= Clearance above paved sidewalk or
paved driveway located on public
property
M= Clearance under veranda, porch, deck
or balcony
1 In accordance with the current CSA 8149.1 Natural Gas and Propane Installation Code
2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
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 minimum of two sides beneath the floor
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For clearances not specified in ANSI Z223.1/NFPA or CSA B149.1, one of the following shall be indicated:
a) A minimum clearance value determined by testing in accordance with section 4.7.3, 6.5.5, 8.5.5, or;
b) A reference to the following footnote: "Clearance in accordance with local installation codes and the requirements of the gas
Canadian Installations
12 inches (30 cm)
6 inches(15 cm for appliances < , 10,000
Btuh (3 kW), 12 inches (30cm) for
appliances > 10,000 Btuh (3 kW) and <
100,000 Btuh (30 kW), 36 inches (91cm)
for appliances > 100,000 Btuh (30 kW)
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3 feet (91cm) within a height 15 feet
(4.5 m) above the meter/regulator
assembly
3 feet (91cm)
6 inches(15 cm for appliances <, 10,000
Btuh (3 kW), 12 inches (30cm) for
appliances > 10,000 Btuh (3 kW) and <
100,000 Btuh (30 kW), 36 inches (91cm)
for appliances > 100,000 Btuh (30 kW)
6 feet (1.83 m)
7 feet (2.13 m)
12 inches (30 cm)
supplier."
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US Installations
12 inches (30 cm)
6 inches(15 cm for appliances <, 10,000
Btuh (3 kW), 9 inches (23cm) for
appliances > 10,000 Btuh (3 kW) and <
50,000 Btuh (15 kW), 12 inches (30 cm)
for appliances > 50,000 Btuh (15 kW)
6 inches(15 cm for appliances <, 10,000
Btuh (3 kW), 9 inches (23cm) for
appliances > 10,000 Btuh (3 kW) and <
50,000 Btuh (15 kW), 12 inches (30 cm)
for appliances > 50,000 Btuh (15 kW)
3 feet (91 cm) if within 10 feet (3 m)
horizontally
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