Tech Bulletin

Wall

Intake

Termination

(Combustion Air)

Exhaust Termination

Roof

12 in. (0.30 m) minimum above

roof or anticipated snow level.

I-Series

Boiler

•

The I-Series Boiler has been approved for a new venting configuration that allows the intake and

exhaust terminations on different pressure planes. See Figures 1 and 2 for sample configurations.

Fig 1. New I-Series Boiler Venting Configuration (Example 1)

PAGE 1
• • The I-Series Boiler has been approved for a new venting configuration that allows the intake and exhaust terminations on different pressure planes. See Figures 1 and 2 for sample configurations. Exhaust Termination 12 in. (0.30 m) minimum above roof or anticipated snow level. Roof Wall Intake Termination (Combustion Air) I-Series Boiler Fig 1.
PAGE 2
Building corner with intake and exhaust terminations on different exterior walls. Exhaust Termination 12 in. (30 cm) Min. 12 in. (30 cm) Min. 12 in. (30 cm) Min. Intake Termination 12 in. (30 cm) Min. Fig 2. New I-Series Boiler Venting Configuration (Example 2) IMPORTANT All other venting options, such as termination clearances and maximum equivalent vent lengths, remain the same and are located in the “I-Series Boiler Installation and Operation Manual.