Public review of ANSI/CSA/IGSHPA C448 is now available

June 10, 2024

The next edition of the ANSI/CSA/IGSHPA C448 Design and Installation and Standard for Ground Source Heat Pumps is now available for public review.

Since 1994, the IGSHPA Standards committee has continued to update the design and installation standards to provide the ground source heat pump industry with the best guidelines for successful installations.

In 2019, the IGSHPA Board of Directors voted to sunset the 2017 IGSHPA Design and Installation Standards when the next edition of the ANSI/CSA/IGSHPA C448 Design and Installation Standard for Ground Source Heat Pumps was published. The 2016 edition of the ANSI/CSA/IGSHPA C448 standard was the first bi-national (Canada-U.S.) standard.

This next edition includes many updates as well as recommendations for changes to the bi-national standard from the IGSHPA Standards committee. Following are some of the updates to the new C448 Standard:

  • New piping materials added
  • New heat transfer solutions added
  • New section: Planning, design, installation, and commissioning of district energy systems
  • New section: Design and installation of ground source heat pump systems connected to energy foundations
  • New annex: Wastewater energy transfer systems design and installation
  • Major updates to the design and installation of groundwater heat pump systems
  • Major updates to the installation of standing column well heat pump systems
  • Updates to all sections with the latest technology and applications
  • Updates to definitions and terminology for consistency.

Public review will run through August 6.

To participate in public review, click on the CSA Public Review System and follow the steps below.

  1. Click on “Login In”
  2. Click on “Register” to create an account.
  3. An email will be sent with your password and a link to activate your account. Click on the link and log in.
  4. Type in “C448” in the search by keyword box and click on the magnifying glass.
  5. Select any one of the sections to review (click on the gold button—e.g., “CSA/IGSHPA C448.1—Details”)
  6. Click on the “Read Draft” button.
  7. Click on “Comments” to make a comment about the title or clause, or click “Next” to go to the next clause.