Install Instructions

25
Venting continued-
Power Vent Installation
Power venting is where the indoor air is used, and the exhaust is vented to the
outside. Venting may be run horizontally through an outside wall or vertically
through a roof through using either 2 in. (5.1 cm), 3 in. (7.7 cm), or 4 in. (10.2
cm) diameter pipe.
When using this model as a power vent type (drawing intake air from indoors),
it is still required to have at least the minimum vent length on your intake
assembly. The equivalent length of intake venting must be within 30 ft (9.2 m)
of the equivalent exhaust length.
Through The Wall Venting (Horizontal Venting):
Cut a 2 1/2 in. (8.9 cm) diameter hole in the wall at the point where the vent
connector is going to pass through the wall. Use the proper cement to secure
the 90° vent terminal provided with the water heater to the vent connector. The
distance between the edges of the 90° vent terminal and the exterior wall (see
Figure 8) must be 1 in. (2.5 cm). Use the proper cement and assembly
procedures to secure the vent connector joints between the terminal and the
blower outlet. Provide support brackets for every 5 ft. (1.5 m) of horizontal vent.
Figure 8
3” or 4” Vent Installation
2” Vent Installation