Central ventilation serves several rooms through one central system with air ducts.
Decentralised ventilation works with separate units per room, without an extensive duct network. This allows you to ventilate exactly where it is needed, with more flexibility and without major renovations.
System A: natural supply and natural extract of air.
System B: mechanical supply of fresh air and natural extract of stale air.
System C: natural supply through vents and mechanical extract of stale air.
System D: mechanical supply and mechanical extract of air.
At Wilms, we choose the best of system D: decentralised ventilation with mechanical supply and extract of air, room by room. This makes it easy to add ventilation in the spaces where you need it most, without major renovations.
Traditional window vents are not always the best choice. Vents let fresh air enter passively through the window. It is a simple solution, but the airflow is less controlled and can cause draughts, noise and heat loss. By contrast, Wilms’s decentralised type D system with Airria® technology provides mechanical supply and extract of air per room, with filters and heat recovery. This gives you more controlled ventilation and a more comfortable indoor climate.
The price depends on the chosen system, the number of units, the dimensions and the finish. Window ventilation and wall ventilation are always assessed on a made-to-measure basis. Request a no-obligation quote for an exact calculation tailored to your home or building.
You ventilate without heat loss thanks to decentralised ventilation with heat recovery. Wilms units recover up to 75% of the heat from the extracted air. This keeps your indoor climate pleasantly warm in winter and cool in summer, without wasting energy.
Wilms specialists install the units discreetly on your window or in your external wall, without complicated ductwork. This lets you decide room by room where you want ventilation and limits major renovation works.
That depends on your windows, walls, renovation plans and ventilation needs. Window ventilation is interesting if you want a compact solution on or against the window. Wall ventilation is a strong alternative when installation in the wall is a better fit. Your Wilms dealer will be happy to help you make the right choice.
Yes, but maintenance remains limited. Ventilation filters trap dust and pollen and should be checked and replaced regularly. This keeps your system working optimally and your indoor air healthy.