PRESS RELEASE

    IAPMO R&T Announces New Draft American National Standard for Rating Solar Heating Collectors Available for Public Comments, Due March 9

    IAPMO R&T Announces New Draft American National Standard for Rating Solar Heating Collectors Available for Public Comments, Due March 9

    Ontario, Calif. — IAPMO R&T, a leading developer of standards for the plumbing, mechanical and solar industries, is pleased to announce that draft standard IAPMO/ANSI S1001.4, Energy Production Rating of Solar Heating Collectors, is available for public review and comments. Notice of availability and 45-day public review was published in the Jan. 23 issue of ANSI Standards Action:

    IAPMO (Z) (International Association of Plumbing and Mechanical Officials) New Standard BSR/IAPMO S1001.4-201x, Energy Production Rating of Solar Heating Collectors (new standard) This Standard specifies the procedures used to determine energy production ratings of solar heating collectors, which provide a basis for comparing the relative thermal performance of various solar collector technologies when evaluated under identical rating conditions. Ratings help users of solar heating products make an informed decision regarding the choice of collector with respect to thermal performance in a variety of end-use applications. Single copy price: Free Obtain an electronic copy from: standards@IAPMOstandards.org Order from: les.nelson@IAPMO.org

    Send comments (with copy to psa@ansi.org) to: Abraham Murra (909) 472-4106, abraham.murra@IAPMOstandards.org

    IAPMO’s S1001 Solar Standards Technical Subcommittee members met in a collaborative and open process to develop this draft solar heating collector rating standard, which is completely transparent and allows the user to convert the results of test laboratory thermal efficiency tests to a single-day collector energy production rating. This standard, along with the accompanying IAPMO Solar Calculator, will allow manufacturers, distributors, architects, engineers, contractors, code authorities, program administrators and end-users to compare the energy production of tested solar heating collectors. For 87 years The IAPMO Group has offered a comprehensive menu of services — product testing and certification, code and standard development, training and education — offering clients one-stop shopping for all of their solar, plumbing and mechanical needs. For a complete listing of available services, visit www.iapmo.org.


    IAPMO, ASPE, ASSE International, ARCSA International Join Into Renewed MoU Outlining Future Collaboration

    02 September 2025

    IAPMO® and the American Society of Plumbing Engineers (ASPE) have renewed a Memorandum of Understanding (MoU), now incorporating ASSE International and ARCSA International, to jointly advance and promote the mutual interests of education, regulations, design, specifications, installation, and inspection of plumbing systems, as well as training, testing and certifying qualified professionals to perform design work responsive to the need to conserve and protect water supplies, and reduce energy use connected to delivery and use of water.

    Report on Comments Toward Development of 2027 UPC, UMC Now Available for Online Download

    01 August 2025

    IAPMO®, developer of the Uniform Plumbing Code (UPC®) and Uniform Mechanical Code (UMC®), has posted online the 2025 Report on Comments (ROC) for the 2027 editions of these American National Standard-designated model codes. The ROC includes the committee actions as discussed during the May 6-8 technical committee meetings, the electronic ballot results as balloted between May 19-June 16, and the Technical Correlating Committee actions on all comments received for the 2027 editions.

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