78
11.12.3 - Multiventing
sidewall terminations
When two or more direct vent
appliances are vented near each
other, each appliance must be
individually vented and vent
terminations may be installed as
shown in Figure 11-21. It is important
that vent terminations be made as
shown to avoid recirculation of fl ue
gas.
WARNING!!!
Do not
connect any other appliance
to the vent pipe or multiple
heaters to a common vent
pipe. Failure to comply could
result in severe personal injury,
death, or substantial property
damage.
Figure 11-21 Concentric sidewall multiple heaters terminations
11 - INSTALLATION - Vent and combustion air
Vent
Combustion air
intake
NOTICE! keep the terminals horizontally in the same
line and at min. 12” from grade or snow line.
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