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Home » Topics » Plumbing & Mechanical Top Stories

Plumbing & Mechanical Top Stories
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Empty modern room with large windows looking out onto a green lawn and trees.
Renewable Heating Design | John Siegenthaler

Transitions: What do I do about cooling? (Part 1)

John Siegenthaler, P.E.
John Siegenthaler, P.E.
May 28, 2025

Fortunately, our industry is at a point where the question "But what do I do about cooling?" can be answered, with confidence, and by the same hydronics professional offering heating.


Read More
AI, Circuit board
Guest Editorial | Chris Lollini

Has AI killed the need for local SEO?

The New Reality for plumbing and HVAC Marketing.
Chris Lollini
May 27, 2025

Today, AI is changing how people search for services and solve problems. But does this spell the end for traditional local SEO? Not quite. Instead, it signals that plumbing and HVAC businesses must evolve to thrive in an AI-driven world.


Read More
Architect and his client looking at the hologram of a house project over a tablet computer.
Guard on Compliance | Misty Guard

ICC Group modifications for U.S. building and safety codes

Keeping up with technology.
Misty Guard headshot
Misty Guard
May 19, 2025

The International Code Council's (ICC) Group B proposes modifications to certain United States (U.S.) building and safety codes.


Read More
Six tankless water heaters that feed the nutraceutical manufacturer’s operations.
Case Study

How to deliver large volumes of hot water quickly and intermittently

California-based nutraceutical manufacturer meets large, spiking hot-water needs with a combination tankless-and-tank system.
John O’Reilly
May 13, 2025

Proper water heater sizing in any application hinges primarily on user consumption within a given period. That much is probably obvious, even to someone who has never sized a water heater. What complicates matters, especially in a large commercial application, is the cadence of that usage.


Read More
John Siegenthaler, Hot Rod Rohr and Dave Yates reunite at the Lochinvar booth at AHR 2025.
Contractor's Corner | Dave Yates

Eye candy from The AHR Expo 2025

Go with the flow
Dave Yates
Dave Yates
May 12, 2025

Eye candy would best describe many of the products on display at the great AHR Exposition recently held in Orlando Florida’s Convention Center.


Read More
Leaking water drops that falls to the tile floor because of a broken pipe.

Taking a proactive approach to leak detection in the commercial space

Complex commercial buildings call for smart leak detection to mitigate risk.
Yaron Dycian
May 8, 2025

Commercial buildings, like homes, face risks from fire, flooding, and severe weather. Property owners and managers should recognize these threats but not be overwhelmed—proactive measures can significantly reduce risks and ensure peace of mind for everyone.


Read More
Figure 1 is a sketch of the flow problems of the current plumbing system.
The Glitch & The Fix: May 2025

Hydronic heating glitch solved: Why adding a circulator won't fix primary loop flow issue

Cut & cap
John Siegenthaler, P.E.
John Siegenthaler, P.E.
May 8, 2025

When the system was operated, the owner complained of flow problems. The heat emitters in any given zone were only marginally warmed when their associated zone circulator was operating. The owner questioned if another circulator should be installed.


Read More
Microscopic magnification of Legionella pneumophila, a Gram-negative bacillus that causes pneumonia.

Legionella cases are leveling off, but experts say we must ramp up prevention

Climate change and aging infrastructure impact water sources and treatment.
Natalie Forster
Natalie Forster
May 6, 2025

In a recent whitepaper written by Dr. Janet Stout and Abraham Cullom of the Special Pathogens lab – both legionella experts – it’s reported that legionaires disseas is on the rise, particularly in the healthcare setting. Cliamte change, aging infrastrcuturem increasing population are all identified factors that increase legionella cases.


Read More
Young son helping father on the kitchen floor, fix the kitchen sink.
From the Editor | Kristen Bayles

New Editor joins Plumbing & Mechanical Group at BNP Media

Roots in renovation
Kristen Bayles 200x200 headshot
Kristen R. Bayles
May 5, 2025

Walking into the bathroom of my childhood home, I recall spilling my mom’s dark red nail polish on the white tile floor. Sitting on the edge of the bathtub, I held the flashlight for my dad while he fixed a leaky pipe under the sink.


Read More
Watts Nexa mobile image

Behind the Wall: Where smart plumbing gets smarter

Adoption of connected plumbing systems calls for greater cybersecurity awareness and consumer education.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
May 2, 2025

From smarter water heaters and valves to AI-powered diagnostics and real-time energy optimization, the future of plumbing is here —and it’s connected.


Read More
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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

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

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Bradford Mueller from Charlotte Pipes.

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

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

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eBook | 2025 Radiant & Hydronics All Stars

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

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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

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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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    • 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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