Expertise + Experience = Quality

Zehnder Group's radiator production plants are ISO 9000 and ISO 9001 certified and are subject to a stringent quality management system. The use of state-of-the-art manufacturing techniques ensures above-average product quality. We insist on compliance with all the relevant standards. Our employees serve on various national and international standardisation working groups (including SIA, DIN, EHI and REHVA). This helps us to ensure that we meet all our customers' quality requirements, both today and in the future, and that these requirements become international standards.

Zehnder Group operates its own testing and development centre in Switzerland – a unique asset for perfecting radiator technology and performance.

Zehnder Group was the first in the radiator sector to set up a fully automated testing lab where radiator performance is measured with an accuracy usually reserved for chronometers.

SIA Schweizer Ingenieur und Architektenverband, publisher of industry standards
DIN Deutsches Institut für Normung (DIN)
REHVA Federation of 28 European HBAC associations
EHI The association of the European Heating Industry

Innovation