Draft PDS-02, MINHERS Addendum 77, Integrated Heat Pump Water Heaters (iHPWH) (Opens April 2, 2025)

RESNET® releases the second public review and comment draft PDS-02 of Addendum 77, iHPWH, for public review and comment. The addendum amends the 2022 edition of Standard 301 to define terms, provide clarifications, and enhance the assessment of integrated Heat Pump Water Heaters located in confined spaces.

The public comment period will begin April 2, 2025, and end May 2, 2025. Comments will only be accepted on changes indicated by strike through and underlined text in red print in the file.

To review the draft addendum, click on “VIEW DRAFT ADDENDUM HERE” below.

To submit your comments, click on “SUBMIT COMMENTS HERE” below.

Comments are posted online and you will be able to review comments by clicking on “VIEW COMMENTS HERE” below.

When submitting a comment, you must close the page out and re-open it to view your comment. Refreshing the page will cause the comment to be submitted a second time.

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To view the draft addendum, please check back on April 2, 2025.

The public comment period is closed.

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Tips and Reminders for Submitting Public Comments 

  • Comments must pertain to the changes shown in the draft as either strike-through or underlined text in red print. Comments not on the changes under consideration will be rejected.
  • Comments should include a specific proposed change to the text of the draft open for comment and an explanation sufficient for the review committees to understand the commenter’s concern or objection. Proposed added text must be underlined and text proposed to be removed must be shown using strike-through. If not submitted in this format, the public comment may be rejected.
  • Do not submit comments on other chapters or on sections or proposed changes that are not identified as open for public comment by red print. Comments not on the proposal under consideration will be rejected.
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  • Public comments are reviewed by committees comprised of volunteer members, that are Raters, Providers, Software Developers and other industry and public interest stakeholders. They are not reviewed by RESNET Staff.
  • Most amendments to RESNET standards are proposed by industry and public stakeholders not RESNET. To learn more about submitting proposed amendments visit this page: https://www.resnet.us/about/standards/submit-proposed-amendments/