Abstract: A self-regulating appliance operable as an air-exchanger, humidifier, dehumidifier, air scrubber, and air sterilizer. The appliance includes a cabinet defining an interior with a plurality of fluid passageways, a first inlet configured to receive a first air flow from a dwelling interior, a second inlet configured to receive a second air flow from a dwelling exterior, a first outlet configured to deliver a third air flow to the dwelling interior, and a second outlet configured to deliver a fourth air flow to the dwelling exterior. At least one blower is fluidically coupled to the first and second outlets to expel the third air flow to the dwelling interior and the fourth air flow to the dwelling exterior. The cabinet also includes an energy exchange core and a desiccant wheel. The desiccant wheel configured to rotate to transfer moisture and sensible energy between at least two air streams.

Abstract: The present invention is a dehumidifier powered by an engine. The dehumidifier recycles waste heat from the engine and other components for the drying process. Moisture is transferred by advection and evaporation from an air stream flowing through the target environment (e.g., building interior) into a hot system air stream.

Abstract: The present invention is a dehumidifier powered by an engine. The dehumidifier recycles waste heat from the engine and other components for the drying process. Moisture is transferred by advection and evaporation from an air stream flowing through the target environment (e.g., building interior) into a hot system air stream.