Note: Many companies have instituted policies that limit or put guidelines in place for installing software. If you need formal permission to install the free 3E Plus software on your computer or corporate network, please contact us to request a letter of permission from NAIMA.

3E Plus version 4.1 now runs on Windows® XP, Vista and Windows 7 operating systems!

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Welcome to the Home of 3E Plus®

Free Insulation Thickness Computer Program

The 3E Plus® Insulation Thickness Computer Program is an industrial energy management tool developed by the North American Insulation Manufacturers Association (NAIMA) to simplify the task of determining how much insulation is necessary to use less energy, reduce plant emissions and improve system process efficiency.

The 3E Plus program can:

  • Calculate the thermal performance of both insulated and uninsulated piping, ducts and equipment
  • Translate Btu losses into actual dollars
  • Calculate greenhouse gas emission and reductions

Click here for specific program features

Designed for facility managers, energy & environmental managers, industrial process engineers, and industrial plant managers, the program is a valuable tool for determining the return on investment of an insulation upgrade on pipes, ducts, tanks, and boilers.

What's New

The latest version of 3E Plus (Version 4.1) features:

  • Runs on Windows XP, Vista, and Windows 7
  • All calculations involving money or economics, such as the Cost of Energy calculations are now in the ECONOMICS section.
  • Able to retain user installed data when updating the program
  • Simple payback calculations
  • New user interface
  • Automatically calculates thickness tables
  • Improved report formats
  • Calculates in both metric and inch-pound units
  • Ability to add custom fuels
  • Calculates multiple insulation layers
  • Updated thermal curves and new insulation materials

Click here for more program details and calculation features.

Click here if you are already a 3E Plus User (Versions prior to 4.0)

 

Program software can be downloaded for FREE from this site

3E Plus® is a registered trademark of the North American Insulation Manufacturers Association (NAIMA)