Stiebel Eltron Home Ventilation Also for Retrofitting

Stiebel Eltron provides ventilation solutions for existing buildings that are easy to install, and also reliably and constantly ensure the desired air exchange rate. The VLR 70 for example is installed in the outer wall, and no further ducting is required. The units are used in pairs and work alternately, thus avoiding negative or positive pressure in the room.