Refrigerant vs Desiccant

Which type of dehumidifier do I need?

There are a number of factors to consider when researching and comparing products and choosing the right size/capacity. FRAL Australasia have a complete range of refrigerant and desiccant dehumidifiers. Which machine to use is dependent on the application.

Refrigeration-type systems are more efficient than desiccants at higher temperatures and high moisture levels. Refrigeration systems are seldom used for applications requiring less than 45% RH or conditions below 10OC.

The main benefit of a desiccant dehumidifier is that it performs well when used in cooler climates, or when a low dewpoint is required. As there is no actual water produced during the process, these units can work effectively at sub-zero temperatures.

The table below compares two of our similar capacity machines:

FD240 Refrigerant
FD240 Refrigerant
FD240 Refrigerant
RY1500 Desiccant
Extraction 240l/day 240l/day
Temperature Range 7-35˚C 20 to 40OC
Humidity Range 45-99% 20-99%
Power Consumption 2.3kW 15kW
Noise 54db 80db
Weight 66kg 160kg

If the conditions suit a refrigerant type machine then the lower purchase price and significantly lower power consumption would make it the preferred machine.

If the conditions are cool or the required humidity level is less than 45% then the wide operating range of the desiccant unit makes it the preferred machine.


Ask us a Question

Choosing the right product for your application can be challenging, and it is important you get the right product the first time. Our team are experts in all things humidity and are happy to assist in selecting the correct model(s) for your application as an obligation free service.

Call (02) 6584 2511 or email us below.

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