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Home> | Premises management/maintenance | >Boilers & burners | >Premix burners now in outputs to 3MW |
Home> | Plant, Process & Control | >Boilers and burners | >Premix burners now in outputs to 3MW |
Home> | Energy Management | >Boilers and burners | >Premix burners now in outputs to 3MW |
Premix burners now in outputs to 3MW
03 August 2019
Riello RX premix packaged burners are now available in outputs to 3MW, offering NOx levels of less than 40mg/kWh, and turndown ratios of up to 8:1, across a wide range of models.

Riello RX burners include a patented woven wire gauze ‘sock’ covering the combustion head cylinder. Gas and combustion air are mixed upstream of the combustion head and then pass through precision-located ports and the gauze ‘sock’ to ignite on the external surface of the combustion head. This arrangement enables a very compact flame with a diameter directly related to the burner firing rate, ensuring precise heat control and optimum efficiency at all loads.
The high turndown makes RX burners suitable for systems with variable heat loads where low NOx levels are also required. These range from condensing boilers through to process applications such as spray booths and industrial ovens.
RX burners can be used in conjunction with variable speed drive motors to reduce electricity consumption and lower noise levels even further than the typical 30% noise reduction compared to many other combustion applications. Control options include progressive two-stage operation and fully modulating via 0-10V or 4-20mA. Full electronic control with operational and diagnostic display is also available.
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