I just bought a 1380 sq ft condo in central florida. It is on the third of 18 floors. must purchase a new HVAC (the current one is 21 years old). My agent got 3 bids for me and I don't know the first thing about this and I'm needing some good advise. All three said the existing duct work was fine. I want to know which brand YOU would want if you had your choice. We plan to live in this condo full time and want a really good HVAC with all the bells and whistles a small condo might need.