Arrived on site to check out issues with air balancing in the house, started with the first floor. The great room in the back of the house has floor registers and it is remaining very cold at the floor level due to the vaulted ceilings. My recommendation is to turn the ceiling fan on blowing down towards the ground and also to find deflectors for the floor registers to blow the air across the floor versus going straight up the outside wall. I closed down the dampers for the bedroom on the back right hand side of the house, the closet and the bathroom for that room. Hopefully this will allow for more airflow into the remainder of the first floor.