Counter Flow Heat Exchanger is constructed for several heavy and robust applications that incorporates heat transfer technology and results in high end performance at the users end. The Exchanger is used for removing heat from a high-temperature fluid by using convection and conduction methods. The Exchanger has high temperature difference at the inlet and less temperature difference at the outlet and is useful for efficiently improving efficiency of system by returning energy to the system. The Counter Flow Heat Exchanger eliminates heat to the surroundings and the heat transfer rate of these heat exchangers can also be calculated.