Takagi T-H3J-DV / 240H Installation Manual And Owner's Manual page 17

Diameter
102 mm (4 in.)
*For each elbow added, deduct 1.5 m (5 ft.) from max. vent length.
No. of Elbows
0
1
2
3
4
5
Excludes vent terminators, one termination elbow, or rain caps.
Horizontal Installation Diagram
Hanger
• Regarding the clearances from the exhaust terminal to the air inlet or opening, refer to the
next few pages.
• Follow all vent system manufacturer's instructions and all local codes.
• Do not common vent except with an approved common venting system or connect any vent
from other appliances to these models vent.
• Use 102 mm (4") Category III/IV approved or Special BH, single or double wall stainless steel
vent pipe.
102 mm (4") vent connection Diagram
<How to install stainless steel venting>
Connect a 102 mm (4") stainless
steel vent straight pipe directly on the
exhaust and intake vent collar of the
water heater.
Max. No. of Elbows Max. Vertical and Horizontal (Total) Vent Length
5
Max. Vertical or Horizontal Vent Length
-Stainless steel Vent Illustrations-
Wall
Sidewall vent
terminations
102 mm (4")
stainless steel
vent straight
pipe
Intake vent collar
(Female)
17
30.5 m (100 ft.)
30.5 m (100 ft.)
29.0 m (95 ft.)
27.4 m (90 ft.)
25.9 m (85 ft.)
24.4 m (80 ft.)
22.9 m (75 ft.)
Vertical Installation Diagram
Rain cap
Roof
Hanger
Page
Installation Manual
Installation
Storm
collar
Roof
flashing
Fire stop
102 mm (4") stainless
steel vent straight pipe
Exhaust vent collar
(Female)*