What's the difference between desiccant dehumidifiers or Refrigerant dehumidifiers

2023-11-17 17:14 YTE HVAC Senior Project Manager: BJ Che

Desiccant dehumidifiers and refrigerant dehumidifiers are two types of machines used to lower humidity levels in the air. Although they share a common purpose, they operate using different mechanisms to achieve the desired results.


(desiccant dehumidifiers)

Desiccant dehumidifiers use desiccant materials like silica gel or zeolite to capture and absorb moisture from the air. The desiccant material has a strong bond with water molecules, attracting and retaining them. As air flows through the dehumidifier, it interacts with the desiccant, which extracts moisture from it. To eliminate the collected moisture, the desiccant material undergoes regeneration, either through heating or contact with dry air. Desiccant dehumidifiers are prevalent in regions with low temperatures or circumstances that necessitate cooler, drier air, such as industrial processes or water damage restoration.

Refrigerant dehumidifiers function similarly to air conditioners, utilizing a refrigeration cycle. The air passes through a cooling coil and is cooled below its dew point temperature, causing moisture to condense on the surface of the coil. The resulting water droplets are collected in a reservoir or drained. The cooled air is then reheated to its original temperature and released back into the room. Refrigerant dehumidifiers are suitable for areas with elevated temperatures and humidity levels, such as basements, bathrooms, or living spaces.

Refrigerant dehumidifiers

Refrigerant dehumidifiers

The selection between a desiccant dehumidifier and a refrigerant dehumidifier relies on the specific needs and conditions of the setting. Desiccant dehumidifiers are often favoured for low-temperature situations or when accurate humidity management is required. Desiccant dehumidifiers can function well in colder climates where refrigerant dehumidifiers may face challenges. In contrast, refrigerant dehumidifiers tend to efficiently eliminate substantial amounts of moisture in the air, making them an optimal choice for everyday household usage in moderate or warm climates.

It's important to recognize that each type of dehumidifier has its unique benefits and limitations. Desiccant dehumidifiers are generally less noisy, lighter, and consume less energy. Desiccant dehumidifiers necessitate desiccant material regeneration or replacement, hence contributing to the maintenance cost. On the other hand, refrigerant dehumidifiers are comparatively more energy-efficient, possess higher dehumidification capacities, but may produce excess noise and are heavier.

Ultimately, discerning your specific moisture control needs and environmental conditions plays a critical role in choosing between a desiccant and a refrigerant dehumidifier.


YTE HVAC is a globally recognised company driven by technological research and development, and the YTE Group employs around 300 people in a variety of roles to help our customers meet their environmental challenges and support the steady growth of their businesses.

With a meticulous work ethic and an international management style, YTE HVAC has developed a sophisticated and refined product range, as well as a wealth of research and design experience. This has enabled us to gain a significant market share in the European and global markets.

YTE HVAC is renowned worldwide for its precise temperature and humidity control and air to air heat pump drying capabilities.


Verification code: