Floor supply register air stays low before being sucked up by return register
The supply & return registers are on the floors (hardwood) located along opposite walls from one another.
Supply register is along an exterior wall under a window, return along an interior wall. Separation is 9 feet. Basic, 9x12ft rectangular room.
We’ve always had a problem with this room not cooling or heating as well as the others and I just noticed something recently about the airflow within this room –
When the A/C is on, there’s a decent velocity of conditioned air coming out of the supply if my hand is a couple inches from the register. However, tracing the air flow as best as I can as it comes out, it feels like the conditioned air stays low to the ground & shoots horizontally directly towards the return register.
In this room, I feel cold air from the waist down as I walk in-between the supply/return register path. Outside of that path and from the waist-up – nothing.
This is in comparison to other rooms, where it feels like the air comes out “straight up” and “falls down” & conditions the whole area.
What causes this? My guess is too powerful of a return but nothing I’ve read ever seems to mention dampening return registers.
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