• Being able to keep a low temperature in the building without the risk of moisture-related damage
  • Dehumidification which is easy to install without extensive rebuilding or ventilation pipes

The dehumidification technology from Airwatergreen allows for reducing energy consumption in underutilized buildings by lowering heating without the risk of moisture damage and costly restoration!

Maintaining a heated building environment to control the relative humidity level is an expensive method, as shown in a study conducted by Uppsala University, which can be read HERE.

Using dehumidification to remove moisture from the air is 5 times more cost-effective than using heating to maintain the correct relative humidity level (RH).

A dry and cool building is an efficient and environmentally friendly building! Many buildings, such as churches, are often designed to be kept cool. Airwatergreen currently has installations in over 100 churches, where our product benefits come in handy:

  • Easy installation without making openings in facades
  • Low energy consumption
  • Equal effectiveness at low temperatures
  • Integration with existing building management systems

When it’s time for a ceremony, start heating a day or two in advance!

Often, our small dehumidifier, FLEX, is capable of handling the climate. We are happy to assist in assessing moisture load and dimensioning for optimal results.


Place the dehumidifier where you want it and set the desired humidity level. Connect it to a power source and drain the condensed water. Then, you’re ready to go. It couldn’t be easier!

Airwatergreen’s warm condensation dehumidification does not require wall or facade openings since no ventilation pipes are needed.

The water is removed through a hose to the nearest drain or collected in a container specially designed for this purpose.

A special cart with a built-in 40-liter tank is available as an accessory to handle condensate when no drain is available. The cart also makes it easy to position and move the dehumidifier as needed.

The dehumidifier can be set with parameters for the correct humidity level or controlled based on the dew point. Alternatively, it can be connected to an external control system via Wi-Fi or Modbus connection.


Depending on the size of the building, one or several FLEX dehumidifiers may be required. Alternatively, a REX can be used for larger buildings.

For example, a typical church, with an air volume of around 1000 m3, built with stone and used occasionally while being maintained at 5 degrees Celsius, typically requires 1-2 FLEX units.

Read more about dehumidification here.