It is hard to imagine modern construction projects without controlled residential ventilation with heat recovery (KWL). A KWL system combines a comfortable indoor climate with good indoor air quality – helping create a pleasant environment for everyone in the room.. The Helios portfolio offers the optimum system for every room size and every customer requirement, whether decentralized or centralized ventilation. And in line with our philosophy of "everything from a single source", Helios is available to you with a wide range of services and competent local contacts.

The KWL 250 W is a brand new addition to the Helios KWL family. The central ventilation unit with heat recovery for a volume flow of up to 250 m³/h is ideally suited for living spaces of approx. 110 to 190 m². This makes the high efficient unit the ideal choice for detached houses, semi-detached houses or terraced houses. Thanks to the new, smart easyControls 3.0 control system, it can also be operated intuitively - whether by touch control, by smartphone or tablet via the internal web server, or location-independently via the cloud.

Browse through our KWL catalogue and discover the new KWL 250 W and the other solutions in the Helios KWL family.