Helios Fans KWL 300 W ET R

The Helios KWL 300 W ET R is a compact mechanical ventilation unit with heat and moisture recovery, specifically designed for central supply and extract air handling in residential buildings and apartments. This right-hand version is equipped with Helios easyControls 3.0, enabling smart communication and remote operation via an integrated network interface.

The unit features a durable white powder-coated galvanized steel casing with double-wall construction and 12 mm insulation throughout, providing excellent thermal and acoustic performance. All internal components are easily accessible via removable front panels, simplifying both installation and routine maintenance.

High-efficiency EC fans and an enthalpy-type cross-counterflow heat exchanger allow for up to 90% recovery of both heat and humidity. Outdoor air is filtered through an ISO Coarse 75% (G4) filter, with optional second-stage filtration available using ISO ePM1 50% (F7) or activated carbon filters. On the extract air side, an ISO Coarse 75% (G4) filter protects the heat exchanger.

With a maximum airflow capacity of approximately 300 m³/​h, the KWL 300 W ET R offers an energy-efficient, low-maintenance ventilation solution for right-hand installation in modern residential spaces.