2000 SQ FOOT HOUSE WITH A FIVE TON UNIT IN NORTH TEXAS. i BOUGHT A HOUSE WITH TO LARGE A UNIT. It cools fine, i just have high humidity. Local a/c guys want to replace unit with correct size. The house is only two years old and I can fork over that much money. I was hoping I could put a ultr-aire in combination with current unit and it would remove the humidity? I am concerned about electricity and the warm air it puts out. Will my current a/c still be able to cool house down with a dehumidifier that is blowing warm air in? I would also like info on the fresh air option. Current plan is not to use it, mabee down the road? I forgot to mention at 72 I am running 54-60% humidity. Can I get it down to 45%.