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Dehumidifier

Looking for an efficient and reliable dehumidifier? Acetec offers desiccant dehumidifiers for crawl spaces, unheated attics, garages, basements, storage areas and other spaces prone to moisture problems. Our EvoDry dehumidifiers combine demand-controlled, energy-efficient humidity management with robust industrial design to keep humidity at a controlled level.

Desiccant dehumidifiers from Älvsbyn

Acetec dehumidifiers are developed, manufactured and quality-assured in Älvsbyn, Sweden. Drawing on extensive experience in humidity control, we develop solutions designed for Nordic climates. Sorption technology performs effectively even at lower temperatures, making it particularly well suited to cold or intermittently unheated spaces.

For crawl spaces and unheated attics, EvoDry RCF 12 and RCF 20 offer demand-controlled operation for long-term humidity management. Explore the range below and find the right dehumidifier for your space and requirements.

Frequently asked questions

What is a desiccant dehumidifier?

A desiccant dehumidifier draws in humid air and allows the moisture to be absorbed by a hygroscopic material in a rotating rotor. The moisture is then discharged from the space with the wet-air stream, while drier air is returned to the room.

The technology works efficiently even at low temperatures, making it particularly well suited to crawl spaces, unheated attics, garages, storage areas and other cold or unheated spaces.

Why install a dehumidifier in a crawl space?

Crawl spaces are often prone to moisture problems because warm, humid outdoor air can cool as it enters the cooler space beneath the building. This raises the relative humidity and can increase the risk of odours, microbial growth and moisture-related damage.

A desiccant dehumidifier for crawl spaces helps keep humidity at a controlled level. Acetec EvoDry RCF 12 and RCF 20 are designed for applications including crawl spaces and unheated attics. A control panel is included as standard and provides an overview of humidity, temperature and operating status.

Why install a dehumidifier in an unheated attic?

Unheated attics can be sensitive to moisture, particularly when warm, humid indoor air leaks up from the living areas and cools. This can raise the relative humidity and create conditions for condensation and microbial growth.

A desiccant dehumidifier for an unheated attic helps keep moisture levels under control. This can be particularly relevant after window replacement, additional insulation or other measures that change the building's temperature and airflow.

How often should you replace the filter in a dehumidifier?

The filter should normally be replaced every six to twelve months, depending on the environment, operating time and amount of dust in the space. In dirty or dusty environments, more frequent filter replacement may be necessary to maintain the correct airflow.

Use filters designed for the specific model to maintain reliable performance and stable operation. Order original filters for Acetec dehumidifiers from our online store.

How do you install a desiccant dehumidifier?

A desiccant dehumidifier is normally installed permanently in the space and requires a power supply as well as a wet-air hose or duct to discharge the humid air. In crawl spaces and unheated attics, proper sealing and positioning are important for an effective installation.

Always follow the installation instructions for the specific model and make sure that airflow, wet-air discharge and positioning are adapted to the space. Read more about installing a dehumidifier.

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