ᐅ Ventilation Concept: Experiences with Decentralized Fans

Created on: 11 Jan 2026 09:45
J
julia123
J
julia123
11 Jan 2026 09:45
Hello everyone,

I am currently planning to install several decentralized ventilation units in my single-family home (about 135 m² (1450 sq ft) of living space) and would like to hear your experiences and opinions on this.

I have a floor plan of the house, but I am still unsure about the most effective placement of the fans – especially in the living/dining area (open kitchen), the bedrooms, as well as the bathroom and toilet.
Maybe someone here has completed a similar project and can share advice on optimal positioning.

Additionally, I am interested in:
  • Which decentralized fans do you use yourselves?
  • Which brands/models have you had good or bad experiences with?
  • Which units would you recommend for living rooms, bedrooms, or damp rooms?
  • Do you use paired operation, humidity control, or a central control unit?
  • How satisfied are you with noise level, air performance, and maintenance?

I appreciate any feedback, preferably with pictures or examples from your homes.
If you can recommend specific models, that would be very helpful.

Thank you in advance!
Best regards, Julia

Grundriss-001.jpg
Ventilation concept
N
nordanney
11 Jan 2026 11:18
Fans labeled by Raumluftshop. Installed according to the planned design – I had the planning done by a professional.
Humidity control is activated only in the bathroom, as it is unnecessary elsewhere. They mostly run in basic ventilation mode. Audible only when the house is otherwise completely quiet.
Overall, I am satisfied, although a centralized mechanical ventilation system with heat recovery would be even better (was not possible for me due to renovation).