The Helios Fans KWL 45 – 160 LE-RP is a decentralized ventilation system with integrated heat recovery, ideal for both new constructions and renovation projects. Designed for installation in outer walls, the system includes a high-efficiency ceramic heat accumulator, a flow straightener, and an insect screen to maintain clean airflow. It is equipped with an EC axial fan protected by a grille, along with a convenient removal tool (cord) and a durable EPP half-shell base. This unit delivers energy-efficient ventilation while helping to retain indoor thermal comfort.