For real humidity control during cool humid weather, consider a whole house dehumidifier. When it's 70-75^F outside, a two speed will remove a little more moisture but not provide <50%RH like a dehumidifier does. The two speed systems are expensive and complicated. They require a skilled, specifically trained tech for installation and service. For the price of the two speed a/c, a simple high SEER a/c and a whole house dehumidifier is available. The simple combo can provide any desired temperature and %RH regardless the weather. This allows for <50%RH without any a/c operation. If humidity control is promised, get it in writing. Maintaining low humidity is important for comfort, mold and dust mite control.
Originally posted by jeffw_00
My priorities are:
a) reliability - I'm happy to give up a bit of efficiency for fewer gadgets. I just don't want it to ever break.
b) I understand (please help me here) that the new systems are variable speed? I think it would be great to have a system that worked like a 5-ton for the 95Deg 95% humidity days, but worked like a 3-ton for the 70s-deg humid days (where my system often cools way before it's dehumidified) - what should I be asking for?
Any other features I should make sure are part of the package?