An important maintenance update for HeatCAD 2017 has been released and it is recommended for all users to download and install it. You can get the update now by using HeatCAD's built-in "Check for Updates" feature located on the Main Menu, or by going directly to

This maintenance update adds the following new features, plus fixes several issues reported since the last release. For a complete list of changes go to our Revision History page.

What's New
  • New Room Details section for CSA Load Details report
  • New air temperature difference settings for Manual J estimated air flow calculations
  • Updated display of information on reports for blower capacity
  • Updated Heating System Summary report to separate non-radiant rooms into a separate table
  • Plus fixes and enhancements for reported issues

Download Free Upgrade

The upgrade to HeatCAD 2017 is FREE for all users with an active subscription.

If your subscription is active just click the link below and follow the steps on the web page to get HeatCAD 2017 activated on your computer.

If your subscription has lapsed you can have it reinstated by following the steps below. Before any payment is required the online renewal process will show you the reinstatement fees which are based on your expiry date.

  1. Download, install, and run HeatCAD 2017.
  2. Click the Activate link.
  3. Click the Renew my Subscription link.
  4. Then follow the online prompts.