Great Southern Group (GSG) is an engineering services and heater design company founded in November, 2005 by William C. Gibson and Robert L. Gibson.  GSG is dedicated to partnering with major end user/owners in the United States and Canada to design and sub-contract the fabrication of new heaters and to solve existing heater problems.  Areas of expertise include:  Heat transfer Fluid flow Combustion Emissions Black oil processing (including crude, vacuum, visbreaking and delayed coking) Design Sub-contract fabrication GSG is committed to providing the highest level of heater expertise for new and retrofit projects. GSG's heater designs will meet process requirements, company standards and specifications as well as industry standards. GSG heaters incorporate the latest in fired heater design and technology to extend run lengths, reduce emissions and increase overall efficiency.  GSG is comprised of two individual companies:  Great Southern Technologies, LLC, provides a wide array of engineering services, including heater revamps, new heater design and sub-contract fabrication, field service, operator training and heater optimization. Great Southern Flameless, LLC, offers flameless heater design, sub-contract fabrication and control systems for new or existing heaters.