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Home » Topics » Plumbing & Mechanical Top Stories

Plumbing & Mechanical Top Stories
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A2L

Things are changing: What contractors need to know about the A2L transition

Dave Yates
Dave Yates
September 17, 2025

In a here-we-go-again move, we must now transition from HFC to A2L mildly flammable refrigerants. The good news is the operating pressures are virtually the same and this time, the refrigerant oil is the same.


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NIBCO SDV Plant

A celebration of American manufacturing: Inside NIBCO's Stuarts Draft foundry

From WROT copper to over 3,000 SKUs.
September 15, 2025

The Stuarts Draft plant is capable of producing 3,085 different SKUs and has a 40-million-pound capacity when fully staffed.


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2025 Next Gen ALL-STARS hero 1440
Plumbing & Mechanical Next Gen ALL STARS

2025 Next Gen All Stars: Top 20 Under 40 Plumbing Professionals

Plumbing & Mechanical’s fourth annual list of young talent in the plumbing industry.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
September 15, 2025

This year’s group of NextGen All-Stars is full of young talent in the trades who are making a difference in the world every day. These innovators and leaders are forging the path for the next generation. Congratulations to this group of industry leaders in our Top 20 Under 40 list of plumbing professionals!


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Close-up of a stream of water hitting the surface while running a warm bath.
Continuing Education, brought to you by PM Code Corner

Continuing education: Designing right-sized plumbing systems for housing affordability, water efficiency and public health

Creating spaces that are safe, welcoming and healthy for all occupants.
Andrew A Hunt
September 11, 2025

This article provides plumbing engineers and system designers with strategies for right-sizing residential plumbing systems based on modern water use data and highlights how traditional sizing methods, like the Hunter’s Curve, often lead to oversized systems that increase costs and wastewater.



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Horizontal view of the Wisconsin State Capitol Dome reflecting into the windows of a steel and glass office building on a sunny day.

Beyond the blueprint: Navigating codes, carbon and clean energy incentives

How are codes, incentives, and carbon awareness shaping today’s building systems?
Kristen Bayles 200x200 headshot
Kristen R. Bayles
September 11, 2025

Building codes are becoming stricter, carbon targets are becoming law, and there’s more funding available for compliance. For those in plumbing and mechanical trades, system design now involves meeting emissions goals, leveraging incentives, and navigating changing regulations.



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Close-up of a manifold with flow meters regulating water pressure in an underfloor heating system, ensuring efficient temperature control.
Renewable Heating Design | John Siegenthaler

Balancing high- and low- mass heat emitters to prevent temperature "droop"

John Siegenthaler, P.E.
John Siegenthaler, P.E.
September 9, 2025

Some hydronic heating systems use slab-on-grade floor heating combined with an air handler or fan-coils in other areas of a building. This approach is also used for heated basement floors combined with a “hydro-air” delivery system for the main living areas.


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Viega's Mantua facility.

Inside Viega’s new North America facility

Viega’s Mantua facility brings jobs, training, and growth to Ohio.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
September 8, 2025

The facility is poised to strengthen both the local community, and the broader industry. It is a centralized hub for production, and for Viega customers to learn and train. 


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Dan Callies PHCC President

Why PHCC CONNECT 2025 is a must-attend event for plumbing and HVACR professionals

Five fast facts about CONNECT.
Dan Callies
September 3, 2025

CONNECT brings together professionals and emerging leaders, contractors, vendors and educators in a collaborative environment. Attendees will leave not only with fresh insights and tools for success but also with the kind of personal connections that support long-term growth and innovation.


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A varied group of workers performs site analysis at the construction site
The Blue Collar Coach | Kenny Chapman

Coaching vs. managing: The modern leader’s approach

Kenny Chapman
Kenny Chapman
August 28, 2025

If you’re leading a plumbing team today, you’re probably dealing with a whole mix of generations, attitudes, and learning styles. The top-down, “Because I said so,” approach may have worked in the past (barely), but it’s not cutting it now. The truth is, people don’t want to be managed—they want to be developed.


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Radiant & Hydronics eBook Cover 1170x658

eBook | 2025 Radiant & Hydronics All Stars

The latest technology, product innovation and installation trends
August 28, 2025

The third edition of the Radiant & Hydronics All Stars eBook highlights the latest technologies and design trends in radiant heating. It features insights from our All-Star Roundtable on innovations and challenges, along with design trends for residential and commercial applications.


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Radiant All Stars Roundtable discusses low-temperature systems, and more

Radiant All Stars Roundtable discusses low-temperature systems, and more

Radiant & Hydronics All-Stars Roundtable 2025

Radiant & Hydronics All-Stars Roundtable 2025

IPEX celebrates grand opening of new Florida distribution center

IPEX celebrates grand opening of new Florida distribution center

AI can boost efficiency and profitability for plumbing, HVAC contractors

AI can boost efficiency and profitability for plumbing, HVAC contractors

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Popular Stories

Bradford Mueller from Charlotte Pipes.

Charlotte Pipe and Foundry testifies on trade fraud before U.S. House Judiciary subcommittee

2025 Next Gen ALL-STARS hero 1440

2025 Next Gen All Stars: Top 20 Under 40 Plumbing Professionals

Hole room floor heating system - hydro installation with pipes

Aesthetic, efficient and resilient: hydronics outclass multi-splits in key areas

Oct. 22 PM ENR Webinar: Optimizing Healthcare Piping: Why Schedule 80 CPVC is a Smarter, Safer Choice

Events

November 13, 2024

Future Proofing MEP: Navigating the 2026 High Efficiency Water Heating Standards

Join our deep dive into DOE’s new standards so you can future-proof your MEP practice.

EARN: 0.1 ASPE CEU; 1 AIA LU/HSW; 0.1 IACET CEU*; 1 PDH

September 23, 2025

How to Get Found First and Chosen Fast

When a customer needs help, they don’t wait around—they choose the first business they find and hear back from. This webinar will cover how to get noticed online, capture every lead, and win more business without adding extra staff or hours.

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The Water Came To A Stop

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    • BATH & KITCHEN PRO
    • BUSINESS MANAGEMENT
    • HIGH EFFICIENCY HOMES
    • TECHNOLOGY
    • 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
    • CODES
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    • COLUMNS
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