Roberts Gorden NDUSTRIA NHE Series Installation, Operation & Service Manual page 53

8.14 Common Side Wall Horizontal Venting (Category III)
Note: A continuous section of type B-vent may only be
used to pass through the outside wall or outside of
the building. Horizontal venting (Category III) does
not allow the use of type B-vent inside of the space.
Description Part Number
Vent Terminal 6" (15 cm)
Requirements:
• Maximum of two heaters can be commonly
vented through a side wall.
• Heaters must be of the same BTU output.
• Heaters must be controlled by a common
thermostat.
NOTE:
It is required that all vent pipes and connectors be
fastened together with sheet metal screws and
sealed with high temperature silicone sealant
approved for at least 550 °F (288 °C) (supplied by
others).
The installer must perform a leak test on the
complete venting system. A solution of soap and
water should be used to test the venting system.
90502101
SECTION 8: V
ENTING
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