Without having previous experience with dehumidifiers, I spent many hours reading everything I could about their operation, features, differences, and requirements.
So, I will present my conclusions after one month of use:
- The build quality is very good. Its plastics are hard with proper assembly. Of course, they have achieved this by using the logic of minimal moving parts.
That is, it does not have moving blinds, it does not have wheels, it does not have folding levers to lift it. In this way, they maintain a simplicity that does not have the risk of starting vibrations or at least minimize them.
- The buttons are touch-sensitive and respond correctly without errors.
It has On/Off, humidity level adjustment, timer, and night mode.
I should mention that with each button press, a confirmation beep is heard, unless it is in night mode where it is muted.
- The humidity level adjustment is from 30% to 80% in 5% increments.
It also has the CO option which operates continuously.
- The timer is up to 24 hours.
- It has two operating speeds. Normal and reduced (night mode).
- The water tank is removable and attaches to the back. It also has a window to see the water level.
- The air intake has a grille with a plastic "mesh" to hold large dust, hair, etc., which can be washed.
- When the desired humidity level is reached, the dehumidifier will shut off for 15 minutes.
After the 15 minutes, only the fan will operate to check the humidity.
If it has increased by >=1%, then it will start again.
- Now regarding the noise.
How all manufacturers measure noise is a matter I have not figured out. The dB they give, and I am not only referring to this specific one, is questionable and I suspect it is in a specially designed space, with soundproofing and sound-absorbing materials so that only the clean sound of the device is heard.
So, the final sound that reaches our ears is related to the space, the walls, and of course our sensitivity to specific frequencies.
The Kullhaus is not silent and cannot be completely silent. Its pump can be heard and distinguished clearly. Even in night mode, the pump does not decrease in sound, only the fan does.
In its normal operation, the fan noise is comparable to the pump. In night mode, the fan is almost inaudible, but the pump can still be distinguished. In the bedroom, personally, I cannot tolerate it, just like other devices. For example, I can only tolerate the Xiaomi air purifier at the minimum, not more.
To make a comparison, the Kullhaus next to an LG Smart Inverter Compressor refrigerator (the manufacturer gives 36dB) makes more noise. That is, in the same space, the dehumidifier is quite a bit louder.
I mention the above so that potential buyers can perceive the noise level as much as possible and not as negative points of the Kullhaus. There is no completely silent dehumidifier yet, and I believe this one produces less noise than the others.
- This particular one has been placed in a ~50 sqm space and performs well.
I will not bore you with details because performance depends on many variables outside of the device.
Overall, I am satisfied with the Kullhaus, but also generally with the use of a dehumidifier in a house.
It has made a big difference in the atmosphere of the space.
