Intelligent fan system prevents heat loss

Permanent ventilation without loss of energy with the window closed – the solution for this comes from 2resist. Core element of the solution is an incorporated heat exchanger. Useful features like automatic mode and a cooling function for hot summer days ensures that the inner rooms are always supplied with fresh air.


The entire system is discreetly built into the walls, it is recognizable only by two ventilation grilles and a control panel in the window frame. Nevertheless, all components (power supply, fans, electronics and heat exchangers) can be replaced if necessary.
2resist Highlights:

  • Reliable handling of condensation in the fan: continuous protection of all components and walls, safe drainage
  • Access to all components despite installation of the fan unit in the wall
  • Appointed date for the launch, development under enormous time pressure