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HeatCAD 2024

Detailed calculation methods and assumptions can be found in HeatCAD’s Help file.

Archived Downloads
Important Notice
Current versions of the LengthWise programs are available and it is strongly recommended that you update to these newest versions. Click here to access the current version downloads.

The download of older versions made available here is provided on an “as is” basis only. These older versions may contain outdated data and calculations, and use of these versions is completely at your own risk.
LengthWise 2012
Arrow LengthWise 2012 2.95 MB 2012-06-20 Download is for Trial and Full versions. If you have an activation code, it will determine the status. Download


LengthWise 2010
Arrow LengthWise 2010 2.50 MB 2010-06-11 Download is for Trial and Full versions. If you have an activation code, it will determine the status. Download


LengthWise 2008
Arrow LengthWise 2008 3.1 MB 2008-07-21 Download is for Trial and Full versions. If you have an activation code, it will determine the status. Download