Helios Fans KWL 300 W R

The Helios KWL 300 W R is a compact heat recovery ventilation unit tailored for centralized supply and extract air systems in residential buildings and apartments. This right-hand model is fully compatible with the Helios easyControls 3.0 platform, offering network-ready connectivity and intuitive control through any web browser.

The outer casing is constructed from white powder-coated galvanized steel, while its double-walled design incorporates 12 mm of thermal and acoustic insulation for improved energy efficiency and noise reduction. The unit is designed for quick installation and easy servicing, with all internal components accessible via removable front panels.

Fitted with energy-saving EC fans and a high-efficiency plastic cross-counterflow heat exchanger, the KWL 300 W R delivers up to 90% heat recovery. Fresh air intake is filtered through an ISO Coarse 75% (G4) filter, with an optional second-stage filter available in ISO ePM1 50% (F7) or activated carbon. The extract air path is similarly protected by an ISO Coarse 75% (G4) filter placed before the heat exchanger.

Capable of handling airflow rates up to approximately 300 m³/​h, this unit is ideal for right-hand ventilation configurations where performance, efficiency, and digital control are key priorities.