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Renson recently unveiled Flux, a complete range of compact, connected and demand-controlled ventilation units with heat recovery, at Vakbeurs Energie. With flows of up to 650 m³/h, this provides a high-performance total range that excels in energy efficiency, ease of installation, flexibility and time savings, with a suitable device for every project.
Renson's Flux Flat ventilation units offer demand-controlled, energy-efficient ventilation with heat recovery and exceptionally quiet operation. The units are compact, lightweight and easy to mount on your own, either against the wall or the ceiling.
The Flux Flat is already available in 3 ‘+’ flow variants (225 m³/h, 275 m³/h, 370 m³/h), with a more compact 175 m³/h variant to be added by the end of 2026. Each of these Flux+ Flat units is equipped with humidity, CO₂ and VOC sensors centrally in the unit. If concentrations are too high, the ventilation unit automatically revs up to ventilate more intensively. Optionally, the Flux+ Flat is available as an ERV unit (Energy Recovery Ventilation, where not only heat but also moisture is partially recovered) instead of the classic HRV unit.
Just measuring and monitoring moisture content? Then the Flux Go Flat (already available now in 225 m³/h, 275 m³/h, 370 m³/h variants, by the end of 2026 also in a more compact 175 m³/h variant) is the ideal solution for your project.
Within Renson's Flux product family, the new ‘Wall’ answers the need for demand-controlled ventilation with heat recovery for larger flow rates. This variant of the Flux Flat is mounted against the wall and can handle ventilation flows of up to 650 m³/h at a pressure of 200 Pa. Four connections at the top and two on each side allow you to take the easiest route for both supply and return ducts, as well as to hang the unit up to the ceiling. The internal plenum provides additional flexibility during installation. After mounting, the unit is immediately ready for connected operation.
Like the Flux Flat, the Flux Wall comes in both a ‘+’ and a ‘Go’ version. The Flux+ Wall will be available from the end of 2025 in a 475 m³/h and 650 m³/h version. Another more compact 300 m³/h variant will follow in mid-2026. This is the best choice for fully automatic, demand-controlled ventilation with heat recovery based on 24/7 monitoring of humidity, CO₂ and VOC content. In terms of energy consumption, thermal results and acoustics, the Flux+ Wall unit scores highly. At the same operating point, the ventilation unit 30 % consumes less energy than similar systems from competing brands.
In the Go variant (already available now in a 330 m³/h and 400 m³/h version, in mid-2026 also in a more compact 300 m³/h unit), the ventilation level is tuned automatically based only on the moisture content.
