Side Wall Vent Terminal Installation
Important:
When terminating the vent on a side wall, the
following specifications pertaining to terminal location must
be followed (see Figure 7).
1. The air intake terminal and the exhaust vent terminal
must terminate on the same exterior wall.
2. The vertical centerline of the air intake terminal must be
located at a minimum of 203mm (8 in.) and not more
than 610mm (24 in.) from the vertical centerline of the
exhaust vent terminal.
3. The horizontal centerline of the air intake terminal may
not be located more than 100mm (4 in.) below the hor-
izontal centerline of the exhaust vent terminal.
Vertical Vent Terminal Installation
Important:
When terminating the vents through a roof, the
following specifications pertaining to terminal location must
be followed (see Figure 8).
1. The air intake termination and the exhaust vent termi-
nation shall extend at least 457mm (18 in.) above the
roof or snow accumulation level.
2. Must provide proper support for all pipes protruding
through roof.
3. The vertical roof terminations should be sealed with a
plumbing roof boot or equivalent flashing.
4. The air intake termination and the exhaust vent termi-
nation must penetrate the same side of roof.
5. The centerline of the air intake termination and the cen-
terline of the exhaust vent termination must not be clos-
er than 203mm (8 in.) and not farther away than 610mm
(24 in.).
6. The air intake terminal and the exhaust vent terminal
must be oriented facing downward and the same direc-
tion.
– 12 –
Figure 7
Side Wall Vent Termination
SIDE WALL
EXHAUST
VENT
TERMINAL
INTAKE
VENT
TERMINAL
100mm
(4 in.) MAX
203mm (8 in.) MIN,
610mm (24 in.) MAX.
L
C
L
C
L
C
L
C
Figure 8
Vertical Vent Installation
A
B
25mm
(1 in.)
EXHAUST
VENT
TERMINAL
INTAKE
VENT
TERMINAL
203mm
(8 in.) MIN.,
610mm (24 in.) MAX.
25mm
(1 in.)
“A” & “B”: 457mm (18 IN.)
MIN. ABOVE ROOF OR
SNOW ACCUMULATION
LEVEL.
Concentric Vent Termination Kit Installation
A Concentric Vent termination kit (KGAVT0601CVT for 76mm (3 in.), KGAVT0501CTV for 50mm (2in.)) may be used for
side wall termination installations. Because the inside diameter of the exhaust outlet on the 76mm (3 in.) kit is smaller than
76mm (3 in.), the maximum allowable vent pipe length is reduced from 18.2m (60 ft.) to 12.2m (40 ft.) for 76mm (3 in.) con-
centric vent termination kit applications. The 50mm (2in.) kit will not reduce the maximum allowable vent pipe length for
50mm (2in.) concentric vent termination kit applications. Figure 9 illustrates the Concentric Vent termination kit for side wall
installation. To prevent rain water from entering the exhaust outlet, slope the vent kit at a downward pitch of 6.5mm per
1.5m (1/4 in. per 5 ft.) away from the inside wall. Ensure the combustion air intake location is 457mm (18 in.) above the
anticipated snow level.
COMBUSTION AIR
COMBUSTION
AIR
ORIENTATION OF EXHAUST PIPING AND COMBUSTION AIR PIPING RELATIVE
TO EACH OTHER MAY BE VERTICAL (AS SHOWN) OR AT ANY OTHER ANGLE
TO SUIT THE INSTALLATION.
ELBOW (FIELD
SUPPLIED)
SLOPE 6.5mm OVER
1.5m (1/4 in. OVER 5 ft.)
SCREEN INSIDE
STRAP (FIELD
SUPPLIED)
EXHAUST
25mm (1 in.) MAXIMUM
WALL
Figure 9
Concentric Vent Termination (Side Wall Installation)
