Efficient and energy conscious
1-compartment ventilation solution

An energy-saving ventilation solution that provides a good indoor climate while reducing radon, moisture and CO2. The unit has a high heat recovery rate that can be used in bedrooms, living rooms and basements in houses, apartments and businesses. DUKA One S4 has an internal comfort screen where the airflow direction can be adjusted to optimise use. The motor is placed at the far end of the pipe and a sound attenuation mat is placed on the inside of the core to ensure the best sound attenuation.

The inner screen can be rotated 90 / 180 / 270 degrees for directional control of the supply air.

The DUKA One S4 has a pipe diameter of 100 mm, making the unit ideal for bringing up a Ø105 mm or 150 x 150 mm fresh air valve for a heat recovery solution. The core of the DUKA One S4 Plus is 165 mm, making this unit ideal for holiday homes where the walls are thinner than in year-round homes.