A dehumidifier system having a dehumidifier section within which liquid desiccant absorbs moisture from air flowing therethrough and a dehumidifier section within which the desiccant is regenerated employs a heat exchanger for maintaining a relatively high temperature differential between the desiccant contained within the dehumidifier and regenerator sections. The desiccant which is conducted to either the dehumidifier section or the regenerator section is separated into multiple streams, and the multiple streams are treated differently from one another before being discharged into preselected segments of the air flow moving through the corresponding one of the dehumidifier section and the regenerator section. A control scheme in the system is capable of altering, and thereby improving, the concentration level of desiccant utilized in the system.