this is the new self-regulating glass grille for natural fresh air supply

If in a renovation the windows cannot be replaced

Renson's new Variavent glass grille ensures that a direct and natural supply of fresh air is still possible when windows are not replaced during a renovation. As the successor to the 'Flexair' glass grille, the Variavent ensures higher living comfort. In addition, it scores much better aesthetically. It is the ideal solution for existing window frames in wood, plastic or aluminum.

To call the Variavent revolutionary is not even an exaggeration. In fact, it is the first glass grille on the market equipped with the iFlux technology, which also characterizes Renson's Invisivent top grille. The Coanda effect and adjustable flow rate that that technology stands for first directs incoming air upward to mix with the warmer indoor air present. This increases the feeling of comfort in the room and avoids drafts. In addition to the updated design - you no longer see vents inside the home - there will be optional acoustic attenuation in the future, which can be taken off or put back on at any time.

Solution for any type of window

Glass grilles like the Variavent are universally applicable. Regardless of construction or type of frame (aluminum, wood or plastic), installation is always the same. Thanks to the glass aperture of 80mm, smooth, airtight mounting on the glass and in the frame can be guaranteed. There is enough space to fix the glass frames of the frame and/or to install glass rubbers. The Variavent was designed for installation on glass. When installing an optional calf profile, the Variavent is also suitable for calf installation. 

Variants of Variavent

The "varia" in Variavent indicates the variation in flow rate. With its unique internal mechanism, Variavent can be set to four different flow rates while visually maintaining the same appearance. Moreover, the design of the Variavent matches that of the Invisivent top grille. So you can easily combine both solutions, resulting in a harmonious overall appearance.     

The Variavent was launched at Polyclose 2022