Abstract: For use with a heat exchange system having a compressor, condenser, evaporator, refrigerant, and refrigerant carrying lines, an efficiency enhancing apparatus that includes a refrigerant cooling module positioned in the heat exchange system between the compressor and the condenser. The refrigerant cooling module comprises a secondary condenser that draws and cools a portion of the refrigerant from a main refrigerant carrying line exiting the compressor, thereby leaving a remaining portion of non-cooled refrigerant in the main refrigerant carrying line and a refrigerant siphoning and mixing vessel having inlet ports for receiving both the drawn and cooled portion of the refrigerant and the non-cooled portion of the refrigerant and a refrigerant exit port leading from the mixing vessel to the primary condenser for carrying mixed and cooled refrigerant.