Abstract: The present invention relates to systems and methods for control of a steam generating process having a steam generator with multiple water flow conduits disposed in a convection section and a radiant section. A first conduit may have a first diverted convection section water that may flow through a second preheator of a second conduit intermediate a first element of the convection section and a first radiant section. The second conduit may have a second diverted convection section water that may flow through a first section preheator intermediate a second element of the convection section and a second radiant section. A first temperature controlled valve may control the first diverted convection section water flow rate and a second temperature controlled valve may control the second diverted convection water flow rate.