I have a 5 year old 2,000 sq ft house with zoned heating and cooling. We have 2 80% gas furnaces (not sure on the size) and two 2 ton 13 sear air conditioners. The systems are builders grade train systems.
We live in St. Louis and have been frustrated by the comfort of our home during the spring/summer/fall seasons. We feel that there is too much humidity in the home (confirmed by chips and other things going stale). I think it is related to the sizing of the system and also general seasonal challenges with the humid stl climate.
I have considered two new systems like the advanced bryant/carrier systems, but feel that they will not ultimately fix my problems (plus cost is an issue and the systems function fine now).
My question and thought surrounds the addition of a whole home dehumidifier and 2 humidifiers for winter months. Do you think I could control the humidity of the home and keep it at 45% all year with a Honeywell Vision IAQ thermostat? Can you tie one whole home dehumidifier to both systems?
What do you guys think about this? What other method would you recommend to control humidity all year round in a climate that is both very dry in the winter and extremely humid in all other seasons.