Webster Engineering announces the shipment of three ultra low NOx burners (9ppm) firing on natural gas. These 200HP units are designed to be installed on Hurst boilers. The HDRMB series is available with duel fuels without changing burner parts. Burners come with linkageless controls, TEMP A TRIM or O2 trim and variable frequency drive as standard equipment. Operates at normal O2 levels for maximum efficiency. Sizes range from 100 to 2000 HP. For more information on Webster ultra low NOx burners, go to http://www.webster-engineering.com/HDRMB_Series.htm.