Installation / Operation Instruction Manual

Venting continued-

Table 2 lists the venting distances allowed with 3” (7.6 cm) diameter vent pipe.

When venting with 3” (7.6 cm) vent pipe, use a 3” (7.6 cm) to 2” (5.1 cm)

reducer to exit through the building wall with 2” (5.1 cm) vent pipe. Use the 2”

(5.1 cm) vent terminal supplied with the water heater to terminate on the

outside of the building. If the length of the 2” (5.1 cm) needed to go through the

wall is greater than 14” (35.6 cm), use 3” (7.6 cm) vent pipe to go through the

wall and reduce to 2” (5.1 cm) vent pipe immediately after exiting the outside

wall. Refer to the venting illustrations on the following pages. Make sure the

vent pipe terminal is at least 1” (2.5 cm) away from the edge of the wall.

TABLE 1

VENT CONNECTOR LENGTHS FOR 2” (5.1cm) DIAMETER VENT PIPE

Terminating

# of 90 Elbows

(excluding vent

terminal)

Max straight

Length

ft (m)

Min straight

Length

ft (m)

Through the Wall 1 45 (13.7) 2 (.6)

Through the Wall 2 40 (12.2) 2 (.6)

Through the Wall 3 35 (10.7) 2 (.6)

Through the Wall 4 30 (9.1) 2 (.6)

Through the Roof 0 50 (15.2) 7 (2.1)

Through the Roof 1 45 (13.7) 7 (2.1)

Through the Roof 2 40 (12.2) 7 (2.1)

Through the Roof 3 35 (10.7) 7 (2.1)

Through the Roof 4 30 (9.2) 7 (2.1)