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Vertical Terminations - A.O. Smith 705 Operation & Installation Manual

Direct vent tankless water heater
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Flue Installation for the 705 Model
Horizontal with Concentric Termination
SLOPE INTAKE AND EXHAUST
TOWARD OUTSIDE TERMINATION
MINIMUM 1/4" PER FOOT

Vertical Terminations

The air intake requires a return bend or two 90º elbows to prevent entry of rain.
305, 505, 705 Indoor Manual
29

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