Hello! I have had a Geo system since 2010. The equipment is as follows: 3 6 Ton Econar Water to Water units connected to in floor heat as well as to 5 air handlers. The house foundation is 3900' and another 1000' garage. Current heated/cooled space is about 7500'. The system is able to warm and cool the home. But in the summer months humidity control in a problem. It is almost impossible to get below 63% humidity without running portable dehumidifiers. I understand that induct or in line dehumidifiers are available but I hope to solve the problem without them. I have never realized a cost saving from the Geo system, perhaps the exact opposite. It seems like a very costly system to operate. All of my cooling is performed via the water to water in the air handlers. I was told from other than my original installer(now out of business) that water to air would have been a much better solution considering that they are more efficient at heating/cooling and the removal of humidity. Is this true or is it just another Geo myth? Also what is the optimal temperature for the chilled water to maximize the removal of humidity? Any help would be greatly appreciated.