I have a 2 story home which suffers (somewhat) from the ususal 'hotter upstairs' syndrome.
Recently, I removed a bedroom register to clean inside and was greeted with a strong blast of cold air. The flow was stronger than usual and could be felt throughout most of the room.
I then went around the upstairs and removed all of the registers and to my surprise, I was getting increased air flow from all of the registers. This, combined with almost constant running (had 96degree temp) resulted in the upstairs being quite comfortable.
The registers seem to be typical and direct the flow right and left. Previous to this, I had adjusted the dampers to favor the upstairs.
Would the fact that air flow increased indicate that I previously had a high(er) static pressure. My duct system is not of the most efficient design. Should I just leave them off?