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Home » IAPMO

Articles Tagged with ''IAPMO''

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Radiant Comfort Report Spring 2025 Edition

Best Practices for performance, comfort and longevity

Mastering radiant installation
William Werthman author headshot 200x200
William Werthman
July 23, 2025

As radiant heating and cooling systems continue to grow in popularity for their superior comfort, energy efficiency, and quiet operation, the importance of proper system installation cannot be overstated. A poorly installed system—no matter how advanced its components—can fall short of expectations, leading to hot and cold spots, energy waste, or costly callbacks.


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Radiant Comfort Report Spring 2025 Edition

Radiant Professionals Alliance educating the industry

Resources and new technologies to stay up-to-date on radiant & hydronics.
Hugo Aguilar P.E.
Hugo Aguilar, P.E.
July 18, 2025

The Radiant Professionals Alliance (RPA) provides superior comprehensive educational activities and innovative product awareness. This was evident at the 2025 AHR conference held in Orlando Florida. The RPA hosted eight sessions providing education to professionals and students. From the eight sessions, I would like to highlight five that deal with industry patterns, installation practices and innovative design.


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National Standard Plumbing Code sets date for public hearing

IAPMO encourages members and industry representatives to review proposed code changes.
March 19, 2025

Code changes approved at the hearing are set to appear in the 2027 NSPC.


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IAPMO’s Dain Hansen Recognized Among The Hill’s Top 100 Lobbyists for Third Time

December 11, 2024

This marks Hansen’s third consecutive time on this list, underscoring IAPMO’s impact on policies that strengthen global competitiveness and build community resiliency through standards, research, testing and certification. 


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RPA poster display and stand
Radiant Comfort Report Winter 2024 Edition

RPA Technical Liaison Report: The Alliance is back!

2024 marks significant leadership changes within the RPA.
John Mullen
John Mullen
December 9, 2024

The Radiant Professionals Alliance (RPA) is enhancing energy efficiency through innovative hydronic systems under new leadership, focusing on collaboration, education, and strategic partnerships.


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HUGO AGUILAR, P.E.
Radiant Comfort Report Winter 2024 | Executive's Column

What’s new with the Radiant Professionals Alliance?

RPA announces updated website, call for abstracts and more.
Hugo Aguilar P.E.
Hugo Aguilar, P.E.
December 9, 2024

The Radiant Professionals Alliance (RPA) enhances the radiant industry through education, advocacy, and member support. It offers training, networking, and updates like a new website and geothermal partnerships. Members can participate in committees and events such as the 2025 AHR Expo.


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US EPA recognizes IAPMO R&T to certify Point-of-Use Reverse Osmosis Systems to WaterSense Product Labeling Program

November 25, 2024

A typical point-of-use RO system generates anywhere from five to 10 gallons of reject water for every gallon of treated water produced. A point-of-use RO system bearing the WaterSense label will send 2.3 gallons or less down the drain for every gallon of treated water it produces.


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Engineer working with drawings inspection on a tablet in the office along with a calculator, triangle ruler, safety glasses, compass, vernier caliper on the blueprint.
Guard on Compliance | Misty Guard

The code development cycle for National Standard Plumbing Code is open

The plethora of information contained in the diagrams within the NSPC is indispensable.
Misty Guard headshot
Misty Guard
November 12, 2024

The code development cycle for the 2027 National Standard Plumbing Code (NSPC) is open. I encourage your participation in the International Association of Plumbing and Mechanical Officials (IAPMO) and the International Code Council (ICC) activities, as your involvement is vital for public health and safety. For guidance, feel free to call me at Regulosity. I look forward to seeing you at the next code hearing!


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IAPMO.gif

IAPMO seeks USHGC Task Group Members

November 7, 2024

The deadline to apply is Dec. 6.


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Home construction with hot and cold blue and red pex pipe layout in pipes new bathtub house PVC wastewater system.

California homebuilder leads the way as early adopter of IAPMO’s Water Demand Calculator

Villara has been utilizing tool to enable right-sizing of water pipes in more than 5,000 single-family homes.
Mike Flenniken
October 28, 2024

Appendix M of the IAPMO Uniform Plumbing Code, or the Water Demand Calculator, was integrated into the California Plumbing Code on July 1. It provides a new method for sizing water pipes in residential buildings. For Villara Corp., a leading plumbing and HVAC contractor in Northern California, it remains business as usual, having used the calculator for over five years to construct over 5,000 single-family homes.


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    • WATER TREATMENT
    • PMC COLUMNS
      • Dave Yates: Contractor’s Corner
      • John Siegenthaler: Hydronics Workshop
      • Kenny Chapman: The Blue Collar Coach
      • Matt Michel: Service Plumbing Pros
      • Scott Secor: Heating Perceptions
  • ENGINEERS
    • CONTINUING EDUCATION
    • DECARBONIZATION | ELECTRIFICATION
    • FIRE PROTECTION
    • GEOTHERMAL | SOLAR THERMAL
    • PIPING | PLUMBING | PVF
    • PME COLUMNS
      • Christoph Lohr: Strategic Plumbing Insights
      • David Dexter: Plumbing Talking Points
      • James Dipping: Engineer Viewpoints
      • John Seigenthaler: Renewable Heating Design
      • Lowell Manalo: Plumbing Essentials
      • Misty Guard: Guard on Compliance
  • RADIANT & HYDRONICS
    • RADIANT COMFORT REPORT
    • THE GLITCH & THE FIX
  • INSIGHTS
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    • GREEN PLUMBING & MECHANICAL
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      • Natalie Forster: Editorial Opinion
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