Boilers and Burners
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How low can you go? The race to cut NOx emissions in burner technology

IN TODAY’S decarbonising economy, the pressure is on to reduce more than just CO₂. Nitrogen oxides (NOx), the pollutants behind acid rain, smog, and serious respiratory problems, are increasingly in the spotlight. Tightening legislation across the UK, Europe, and globally is driving burner manufacturers to rethink combustion design and emissions control.

In this piece, Nathan Chance, national C&I technical and sales manager at Riello Burners in the UK discusses how low we can realistically go with NOx. Or are we approaching a natural limit defined by physics, chemistry and cost?

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How to increase firetube boiler efficiency

With energy prices soaring, optimising firetube boiler efficiency is crucial. Innovations such as variable speed drives, using economisers reclaim heat from exhaust gases, and advances like micro-modulating burners and O2/CO trim systems can improve boiler efficiency by 45%, says Etienne Fourie

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