Dehumidifier Coils are designed to efficiently transfer heat from a warm air stream to a colder one. Heat pipe coils are constructed of multiple individually sealed heat pipes evacuated and charged with a volatile refrigerant. The heat pipe coil is partitioned in the center so that the warm air stream passes over the heat pipes.
As the refrigerant continuously evaporates and condenses within each individual heat pipe tube, heat is transferred between the two air streams with very high thermal effectiveness. Heat pipe coils are simple passive devices, with no moving parts, pumps, or external piping.
Compared to heat wheels which rotate a thermal media through the air streams to transfer heat, heat pipe coils offer.