What types of dehumidifiers are there
Dehumidifier Types: Refrigerant and Desiccant Dehumidifiers
The two primary types of dehumidifiers include refrigerant and desiccant. The way refrigerant and desiccant dehumidifiers differ is in the method by which they remove moisture from the surrounding air:
Refrigerant. When suspended moisture touches a cool surface, it condenses into water. Refrigerant dehumidifiers use a cooled metal plate or evaporator coil to collect condensation.
Desiccant. A desiccant is a material that can absorb a large amount of moisture. In a desiccant dehumidifier, a wheel of desiccant material rotates slowly, collecting moist air passing through and is then removed by passing through a stream of warm air.
Refrigerant dehumidifiers are effective in achieving dew point temperatures in situations where the room air is 50°F or above; whereas, desiccant dehumidifiers work in lower dew point applications. Since desiccant dehumidifiers are designed to operate in applications of low moisture and dew point requirements they are not suited for high moisture load pool room applications. These two types of dehumidifiers complement each other rather than compete with each other in reality.