Installation Guide

17 Page
-Clearances for sidewall terminaons-
-Clearances for rooop terminaons-
Multiple-unit, concentric wall
terminals: Space each concentric
wall terminal at least 1 ft (30 cm)
away from each other, no matter
the orientation. A concentric wall
terminal must also be at least 2 ft
(61 cm) away from an inside corner.
If the adjacent wall is less than 2
ft (61 cm) of length, the minimum
required distance away from the
inside corner will be equal to the
length of that adjacent wall.
Concentric wall terminals
should be at least 2 ft (61
cm) away from an opposite
surface/wall. Do not place the
termination directly in front of
an opening into a building.
Concentric wall
terminals should be at
least 3 ft (91 cm) away
from a ventilated or
unventilated soffit.
Installaon
Installaon Manual
Inside
corner
Anticipated snow level
1 ft
(30 cm)
min.
2 ft
(61 cm)
min.
1 ft (30 cm)
min.
2 ft
(61 cm)
min.
3 ft
(91 cm)
min.
Improper installation can result in carbon monoxide poisoning or death. Follow all local
and national codes in regards to proper termination clearances. In the absence of such
codes, the clearances below can be used as guidelines. Local codes supersede these
guidelines.
WARNING
Canadian requirements differ from the guidelines in this section. In Canada, follow
the requirements of B149.1 (Natural Gas and Propane Installation Code, current
edition) as well as local and provincial codes. Contact your local code enforcement
agency for direction.
NOTICE
Angled roof termination
Intake air
Intake air
Exhaust
gas
Exhaust
gas
5 ft (152 cm) min.
1 ft
(30 cm)
min.
1 ft
(30 cm)
min.
Anticipated
snow level
Flat roof termination
Intake airIntake air
Exhaust
gas
Exhaust
gas
2 ft (61 cm)
min.
1 ft
(30 cm)
min.
Anticipated
snow level
2 ft (61 cm) min.
1 ft
(30 cm)
min.
Vertical
wall
 Minimum spacing between multiple concentric terminals for rooftop:
 On the same level: 2 ft (61 cm) spacing between each
 On the different level: 5 ft (152 cm) spacing between each
 The exhaust termination must be a horizontal distance of at least 2 ft (61 cm) from a wall
or surface unless specified differently by local code.
 Failure to observe this warning may result in severe personal injury or death.
WARNING
1 ft
(30 cm)
min.