Download Instructions for Windows:

To download the Windows version of the program, click on the link below.   If prompted, choose to "Save this program to disk."  In the "Save as..." dialog box,  choose the location on your computer where you would like the setup file to be copied (copying to the desktop is often the easiest option for finding the file).  Once the file has finished downloading, double click the "Massheat" icon on your computer (Remember, the icon will be located in the place you designated in the "Save as..." dialog box).  The file will self-extract and "install."  In Windows, you will find the program under your Start Menu, Programs, General Model Tutorials.  A shortcut to the program will also be created on your desktop. (If you do not want the shortcut on you desktop, simply delete it.) At this point, you can delete the downloaded setup file on your desktop.  
  

To download the Mac version of the program, click on the link below.   If prompted, choose to "Save this program to disk."  In the "Save as..." dialog box,  choose the location on your computer where you would like the setup file to be copied (copying to the desktop is often the easiest option for finding the file).  Once the file has finished downloading, you will have two files on your computer, the encoded file, which has an .hqx file extension and the decoded file, with a .sea extension.  Double click the decoded file, "Massheat.sea," to extract all of the tutorial files onto your computer.  Once the files have extracted, double click on the file, "Mass and Heat Tutorial.hqx."  To run the tutorial, double click the "Massheat" file with the Flash icon.  At this point, you can delete the downloaded files on your desktop.