Installation Sheet

15 Page
• Themaximumlengthofexhaustventpipingmustnotexceed70ft.(21.3m)for3”venting,which
depends on elevation where the water heater installaed. See the table below and 100 ft. (30.5
m)for4”venting(deducting5ft.(1.5m)foreachelbowusedintheventingsystem).Donotuse
more than 5 elbows.
• When the horizontal vent run exceeds 5 ft. (1.5 m), support the vent run at 3 ft. (0.9 m) intervals
with overhead hangers.
-PVC Venng Illustraons-
For details of the optional items, refer to the Installation manual for each Optional item.
Installaon
Installaon Manual
No. of Elbow
Max. Vertical or Horizontal (Total) Vent Length
3" venting 4" venting
Up to 3,000 ft Up to 6,000 ft Up to 10,100 ft Up to 10,100 ft
0 70 ft. (21.3 m) 40 ft. (12.2 m) 25 ft. (7.6 m) 100 ft. (30.5 m)
1 65 ft. (19.8 m) 35 ft. (10.7 m) 20 ft. (6.1 m) 95 ft. (29.0 m)
2 60 ft. (18.3 m) 30 ft. (19.1 m) 15 ft. (4.6 m) 90 ft. (27.4 m)
5 45 ft. (13.7 m) N/A N/A 75 ft. (22.9 m)
Diameter Max. No. of Elbow Max. Vertical and Horizontal (Total) Vent Length
3 in. (76 mm) 5 70 ft. (21.3 m)
4 in. (102 mm) 5 100 ft. (30.5 m)
*For each elbow added, deduct 5 ft. (1.5 m) from max. vent length.
Excludeselbowtermination,raincaps,orthe3in.(76mm)/4in.(102mm)PVCConcentricTermination
FordetailsontheventconnectiontotheDirectVentIndoormodels,refertoP.16.
HorizontalInstallaonDiagram
VercalInstallaonDiagram
Roof
Flashing
Roof
Fire stop
Wall
ConnectbetweenexhaustventcollarandPVCpiping
Seethenextpageforinstrucons.