How do Dehumidifiers work?
Dehumidifiers are very similar to air conditioners in that they both have hot and cold coils. Dehumidifiers use refrigeration and condensation principles to remove water from the air, and thereby reduces the relative humidity of the room. The basic components of a dehumidifier include a circulating fan, a compressor, a condenser coil (hot coil), and an evaporator coil (cold coil). A compressor compresses the refrigerant gas, which causes it to become a hot, high-pressure gas. Next, this hot gas flows through a set of condenser coils where it dissipates its heat, and condenses into a liquid. Following that, the liquid flows through what’s known as an expansion valve or capillary tube. During this process, the liquid expands and evaporates to become a cold, low-pressure gas. This cold gas flows through another set of coils called evaporator coils, which allows the gas to absorb heat. By absorbing that heat, it also collects moisture by condensing it from the air. A fan blows over the hot