This video explains the main functions and practical uses of the 20HP 70KW coaxial heat exchanger in a clear, step-by-step format. Watch a full walkthrough of its tube-in-tube design, see how structural optimization improves fluid flow and heat transfer, and learn how it applies to air/water source heat pumps and chiller units. Ideal for HVACR engineers and B2B buyers who want real use insights before specifying a condenser or evaporator solution.