All burners are tested according to EN 267 and are DIN CERTCO certified in Germany. Products up to an output range of 120 kW can be tested in Germany according to RAL UZ-9 (Blue Angel eco label) on a voluntary basis. This test certifies that the burner has very low emission values. 5 burner models from our product portfolio within an output range of up to 120 kW are certified and approved according to RAL UZ-9 (Blue Angel eco label).