AkWarm Download

This is the page that allows you to download and install the AkWarm 2 Home Energy Rating software, owned by the Alaska Housing Finance Corporation. Analysis North is on contract to the Cold Climate Housing Research Center to upgrade and maintain AkWarm. More information concerning the software can be found here.

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

This 2.3.3.1 version of AkWarm includes numerous changes to the PUR-101 report, improvements to the Design Heat Load calculation, and the associated 12/1/2014 Library includes more accurate heating system efficiencies.

Download AkWarm 2.3.3.1 (17 MB)

This program contains both the AkWarm Residential Rating software and the AkWarm Commercial Audit software.

Software Requirements and Installation

Important Notes

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.

Old AkWarm 1.03 Release (prior to 2008)

Please see the What's New in AkWarm 2 page for some of the new features present in the current AkWarm 2 release compared to the original (prior to 2008) AkWarm 1.03 release. Here is the link to download the older AkWarm 1.03d release.


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