It is hard to imagine modern construction projects without controlled residential ventilation with heat recovery (KWL). A KWL system not only ensures a comfortable feel-good climate, but also healthy air and satisfied customers. 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 highly efficient unit the perfect 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.