FIRST CHOICE - Engineering trust, manufacturing certainty™ Southern Heat Exchanger offers design and fabrication of custom shell and tube type heat exchangers manufactured in accordance with ASME Code ASME Section VIII Division I. Southern Heat Exchanger Corporation was founded in 1961 for the purpose of manufacturing shell and tube type heat exchangers and today has grown into one of the largest manufacturers in the industry. This sole dedication of purpose has established Southern Heat Exchanger Corporation as a company with modern equipment and a thermal and mechanical design capability geared to provide efficient solutions to unique heat transfer problems.