[rjf7g]

I installed the a round vent with a damper in the bathroom (provided by my dealer) and a rectangular one in the back bedroom (I purchased at Lowe's). These managed to make the back bedroom reasonable with outside temperatures around 45 at night and the thermostat set at 65. The front bedroom would not heat up past 57 even with the door open for about 2 hours. I decided to scrap my test because the living area dropped in temperature and I am an energy miser. With the front bedroom door closed and the two back vents closed, the living room/kitchen, bathroom, and back bedroom are comfortable.

I felt the floor after the furnance was on for a while and could clearly feel a drop in the temperature as I was following what seemed to be the duct once I got to the dinette. I have given all of this information to my dealer and asked him to check for a leak, poor insulation around the ducting, and blockage as well as to investigate options with Gulfstream. I will let you all know what happens!

There is nothing on the AC that indicates "heat pump."

Thanks for all of your suggestions and thoughts!