Can MVHR be installed in an already occupied building?

Decentralised MVHR systems are the ideal solution for minor renovation projects or work carried out in existing buildings, as they do not require air ducting, suspended ceilings or dedicated service spaces.

Helty decentralised systems equipped with an enthalpy heat exchanger recover not only heat but also part of the latent moisture contained in the extracted airflow. As a result, they do not require a condensate drain.

These systems are highly compact and easy to use. Once installed, they do not require any special checks or settings by the installer. Users can manually control the ventilation functions via the control panel, infrared remote control or mobile app. Alternatively, they can allow the ventilation unit to automatically regulate the air change rate according to the indoor air quality values detected by dedicated sensors, including humidity, CO₂ and VOC levels.

As the system does not include long air duct networks, extraordinary maintenance is virtually unnecessary. There are no costs associated with the periodic sanitisation of ductwork. The only regular task required of the user is replacing the filter, a quick and straightforward operation that can be carried out by anyone.

Some decentralised MVHR models also stand out in terms of design and usability, thanks to covers designed to blend seamlessly with interior furnishings, magnetic clip-opening systems that provide easy access to the unit, illuminated indicators showing the indoor air quality status and control via mobile devices using the app.

Further information about Helty wall-mounted MVHR systems is available in the dedicated section.