Designed at 750 psig, High Pressure Superheat Mobile Boiler is capable of producing 110,000 lb/hr of superheated steam at pressure of 400–650 psig, when supplied with feedwater at temperature of 227°F. Trailer-mounted watertube boiler includes low NOx burner, EconoStak economizer, and fully metered cross limited control system with VFD driven, 300 hp fan. Unit is designed to burn natural gas with future option of firing #2 oil. In addition, boiler and trailer are highway legal.