Bathroom exhaust venting considerations
I’m installing wall mounted bath exhausts for two bathrooms and am wondering if the orientation of the fan’s exhaust – upward or downward – prior to the 90 and wall exit is at all critical. The damper on the unit is not functional unless it faces upwards (remains open in the downward facing position, but I’m installing a spring loaded damper anyways. My concern is regarding condensation prior to the 90 and whether it drips back towards the unit or downwards towards the 90.
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