Takagi T-H3M-IN/OS - Manual (Page 18)

18
Page
Installation
Installation Manual
For multiple sidewall exhaust terminations, an exhaust
termination must be at least 1 ft (305mm) away from
another exhaust termination An exhaust termination
must also be at least 2 ft (610 mm) away from an inside
corner (If the adjacent wall is less than 2 ft (610 mm) of
length, the minimum required distance away from the
inside corner will be equal to the length of that adjacent
wall) Exhaust
termination
Inside
corner
1 ft
(305 mm) min
2 ft
(610 mm) min
1 ft (305 mm)
min
For multiple, direct-vent sidewall terminations that
combine the intake and exhaust into a single penetration,
space each direct-vent termination at least 1 ft (305 mm)
away from each other, no matter the orientation A direct-
vent termination must also be at least 2 ft (610 mm) away
from an inside corner (If the adjacent wall is less than 2 ft
(610 mm) of length, the minimum required distance away
from the inside corner will be equal to the length of that
adjacent wall)
Combined
intake and
exhaust
termination
Inside
corner
1 ft
(305 mm) min
2 ft
(610 mm) min
1 ft (305 mm)
min
For direct-vent sidewall
terminations that use two
separate penetrations for
the intake and exhaust,
keep the termination
clearances shown in the
diagrams on the right
Exhaust
Intake
1 ft.
(305 mm)
min.
Exhaust
Intake
A
A
Exhaust
Intake
1ft. (305 mm)
min.
Exhaust
Intake
A
A
A: 0.5 ft. (159mm)
The clearance of A is recommended on the basis of the structure of the water heater
* 3inch and 4 inch vent installations only