A burner upgrade project at a prestigious visitor attraction in Edinburgh involved the replacement of the existing 25-year-old burners with Riello ultra-low nitrogen oxides (NOx) premix burners.
The Riello RX1800 1.8MW premix burners, commissioned by contractor T-Squared, have shown exceptionally low NOx levels of just 9-10ppm (around 20mg/kWh) throughout the modulation range. This is around half the 40mg/kWh maximum required by some local authorities and also below the BREEAM criteria of 24mg/kWh. Consequently, the burner upgrade enabled the aging cast-iron sectional boilers to comply with current and anticipated NOx regulations, as well as improve energy efficiency – thereby extending the life of the boilers.
“The client was very keen to improve energy efficiency and meet future standards for NOx emissions, while retaining the existing boilers for a few more years,” explained T-Squared’s Garry Wallace. “We therefore suggested replacing the older burners to achieve better turndown and temperature control with improved efficiency and reduced NOx emissions. We considered several manufacturers and selected Riello on the basis of product quality and performance, technical knowledge and customer support.
“We have also upgraded the metering, which will enable the client to monitor gas consumption and confirm the expected 2-year payback period is being achieved,” he added.
Further information: www.rielloburners.co.uk