AS-310/410/510/610/M BLU Low NOx Industrial Burners 400-6250kWFeatures Low NOx Technology: A specialized combustion head reduces nitrogen oxide (NOx) emissions, often meeting Class 3 compliance (< 60 mg kWh). Modulating Operation: These burners can operate as two stage progressive or fully modulating with a PID logic regulator. A mechanical cam ensures a high modulation ratio, matching heat demand and potentially lowering fuel costs. Digital Control: Systems like Siemens RMG M88. 62 or LMV use servomotors for