How does a catalytic convertor work?

How does a catalytic convertor work?


The catalytic converter in our fires works much the same as the one in a motor vehicle. The catalytic converter is a honeycomb coated in rare metals. Oxygen 'sticks' to the coating and when a carbon monoxide molecule meets it, the oxygen converts the carbon monoxide to carbon dioxide and water vapour, both of which are present in fresh air.


Flueless fires incorporate the latest in gas fire technology and do not need a chimney or flue to operate. Instead, the combustion gases pass through a catalytic converter system, positioned at the top of the appliance, which converts carbon monoxide into harmless carbon dioxide and water vapour, levels of which are so low they are typically present in fresh air. In fact, the catalytic converter works so effectively that it can actually help to clean the air by neutralising airborne particles and odours, therefore helping to reduce household allergies


Independent tests commissioned to establish the life expectancy of the catalytic converter have proved that even after 16,957 hours (approximately equivalent to 27 years and eight months of normal use)* the catalytic converter is as effective as when it is new.



*Calculation is based on the assumption of 4 hours a day for 5 months of the year.


If you have any questions about a SMEG Flueless Fire which cannot be answered using this help portal, please contact the SMEG Flueless Fire Department on 0844 557 9907 or e-mail customer.service@smeguk.com