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- Thread starter ICE
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jar546
Forum Coordinator
Genius
steveray
SAWHORSE
Straps don't look like 1.5" and is that flex duct rated for fan support?
Yikes
SAWHORSE
Look at how that flex duct pinches down on the far left. In theory, an oblong/oval duct will have roughly the same cross section as the round duct.
In practice, this happened on one of my projects, and it restricted the airflow. I did not initially see the pinched duct installation; it had already been covered with a drywall ceiling. But shortly after occupancy, the fan coil unit was icing up, and we figured something must be blocking airflow, so they had to tear out the ceilings until they found the pinch point.
In practice, this happened on one of my projects, and it restricted the airflow. I did not initially see the pinched duct installation; it had already been covered with a drywall ceiling. But shortly after occupancy, the fan coil unit was icing up, and we figured something must be blocking airflow, so they had to tear out the ceilings until they found the pinch point.