Comprehensive services in areas of testing, inspection, certification and training.

SZU‘s measures in connection with Covid-19

We are constantly monitoring and evaluating the COVID-19 situation. We have taken a number of measures to help minimize the risk of infection. We do everything we can to ensure that these measures have the least impact on the operation of our business and on running orders. Our main goal in this situation is to protect the health of our employees and customers.

More information:

We are now a DIN CERTCO accredited laboratory


Our Radiator Test Station and Heat pump Test Station have been included amongst the prestigious accredited test laboratories approved by DIN CERTCO (Reg. No. PL268). Our test reports can therefore be used to obtain this certification mark of quality. Marking your products with DIN CERTCO marks will enhance their credibility not only on the European market but also on the other markets worldwide

More information on the Radiator Test Station can be found at:

More information on the Radiator Test Station can be found at:

If you have any questions, please do not hesitate to contact us.

Jakub Dohnal
Head of Department
Construction Products
and Central Heating Equipment

e-mail: tel.: mobil:
+420 541 120 458
+420 727 902 870

Mario Jankola
Head of Heat Pumps and Cooling
Equipment Department


e-mail: tel: mobil:
+420 541 120 413
+420 607 016 690