The Kiwa Mark provides assurance to appliance manufacturers and gas network operators that the marked appliances will operate safely on blends of up to 20% hydrogen in natural gas.  This is an important step to enable hydrogen blending in the gas networks.  Hydrogen blending in gas networks offers a reduction in carbon emissions without the cost and disruption to customers of changing their appliances.

Who is the Kiwa 20% Hydrogen Mark for? 

This mark is perfect for boiler manufacturers wanting to future-proof their natural gas appliances, for gas network operators planning blending pilot projects and for householders seeking to save carbon emissions whilst avoiding the disruption and cost of changing their appliances.

Process for obtaining the 20% Hydrogen Mark 

If Kiwa has issued a GAR certificate and a product surveillance contract for a product and the manufacturer has completed the tests specified in the Test Requirements for natural gas appliances burning up to 20% Hydrogen admixture, using EN15502 as the reference standard, then Kiwa may authorise the manufacturer to use the Kiwa 20% Hydrogen Mark. 

Will other appliances be granted the 20% Hydrogen Mark in future? 

Yes, Kiwa will publish the Test Requirements for appliances tested in accordance with the EN89 (gas-fired storage heaters) and EN613 (independent gas-fired convection heaters) standards soon.  Test Requirements for EN30 (gas-fired domestic cookers) and EN203 (gas-fired catering equipment) standards may also be offered, depending on demand.

Kiwa and hydrogen testing

Kiwa, is accredited for testing in accordance with EN15502, and has capability to conduct the tests described in the Test Requirements for natural gas appliances burning up to 20% Hydrogen admixture, using EN15502 as the reference standard at our laboratories in The Netherlands, UK, Italy, Turkey and China.