EN

Stiftung Warentest

Stiftung Warentest is an independent German consumer association. Operating on behalf of the government and funded by the taxpayer, Stiftung Warentest investigates and compares goods and services from different suppliers. Systems and appliances from the heating, air handling, ventilation and solar sectors are also regularly examined and assessed by Stiftung Warentest. Wolf products frequently emerge as test winners.