The Ruck FFH 125 supply air handling unit is a compact solution for ceiling or wall-mounted installation. It features a frameless, double-wall galvanized steel housing with insulation for durability and thermal efficiency. Constant airflow is provided by EC fans with integrated controls. The unit includes an integrated 3kW electric heater with a safety temperature limiter. It also has sensor inputs, Modbus connectivity, and a 0 – 10V output for external extract fan control. An integrated M5 grade outdoor air filter ensures clean supply air, making this unit suitable for a range of ventilation applications.