AkWarm 2 Download Page

This is the page that allows you to download and install the AkWarm 2 Home Energy Rating software. Please see the What's New in AkWarm 2 page for some of the new features present in this release compated to the original AkWarm 1.03 release.

Software Requirements and Installation

  • Your operating system must be Windows XP, Windows Vista, or Windows 7. If you are using Windows XP, your installation must have at least Service Pack 2 installed. To install the most recent Windows XP Service pack, go to the Windows XP Service Pack 3 web page.
  • You must have Microsoft Word version 2003, 2007, or later to view and print out the Improvement Options Report.
  • Click the link near the bottom of the page to download the setup program for the AkWarm 2 software. After clicking the link you may be able to directly "Run" the setup program or you may be forced to save it to your hard drive. If you save it to the hard drive, you should then "Open" the saved file or double-click it to start the installation program.

Important Notes

  • For some computers, the installer will first install the Microsoft .Net Framework 3.5 Service Pack 1 (SP1), which could take as long as 40 minutes on slow Internet connections. All installations of future releases of AkWarm on your same computer will not require this lengthy process and will install quickly.
  • After installing the software, you should have an icon on your desktop to run the software or you can find the program in the "AkWarm" program group under the start menu.

Click Here to Download AkWarm version 2.1.3.2 (11.3 MB). This program contains both the AkWarm Residential Rating software and the AkWarm Commercial Audit software.

Here is a Listing of the Changes implemented in each of the AkWarm 2 versions.

Training Materials

Here is a Link to a video that explains how to set up usage schedules for equipment and building spaces in the Commercial version of AkWarm.


Please report any comments regarding the software to Scott Waterman at AHFC.