NCB-HP High Pressure Steam Boiler with natural circulation Design Permanent Monitoring Water level low, Steam pressure, Flue gas temperature, Burner control Burner The NCB-HP can be equipped with burners for light oil, heavy oil, bio diesel, natural gas, liquid gas, biogas, or with two-component burners. The choice of burner depends upon the boiler capacity, the fuel and the demands expected of capacity control. The capacity can be controlled by different controlling systems: 2-stage: High / low / off or modulating Equipment The boiler equipment is for 72-hour operation without supervision. Pressure, boiler-water minimum level and flue gas temperature are permanently monitored by a safety control system.