CoilDesigner 3.1 is available as a free download on our software library. This software was originally created by CoilDesigner. The software is included in Education Tools.
From the developer:
CoilDesigner the Fin-and-Tube Heat Exchanger design/rating software exclusively developed to take advantage of the rich graphical environment of Microsoft Windows.
You may want to check out more software, such as f x -Viewer, Trachtenberg Speed Math or MathMatic, which might be similar to CoilDesigner.