Plumbing & Mechanical Top Stories

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At sea, there’s no backup system for clean water. Every drop must be filtered, pumped and protected — and that’s where plumbers come in. On Mercy Ships’ floating hospitals, skilled volunteers work to maintain these life-sustaining systems, ensuring that the ability to deliver safe, reliable care doesn’t leave when the ship sails away.

For boilers operating on natural gas or propane, flue gas condensation begins at inlet water temperatures below about 130 ºF. Boilers operating on low sulfur #2 fuel oil have lower dewpoint temperatures in the range of 110 ºF.

Designing and installing a system for the unique venue posed challenges that demanded meticulous attention to detail and coordination. It needed to accommodate visitor needs while blending with the building's rustic character. “Introducing modern mechanical systems without disrupting its historic charm was difficult,” said Selestow.

Artificial intelligence is being used in a plethora of ways across the trades industry. According to Lynn Wise, CEO of Contractor in Charge, “Plumbing and mechanical contractors are moving past the experimental phase of AI and are adopting practical solutions that integrate directly into their daily operations. These tools are streamlining workflows, enhancing customer service, and boosting profitability.”

The homerun system is a simple technique for connecting multiple heat emitters using two runs of small flexible tubing (such as PEX) for supply and return. In North America, the standard size is 1/2-inch, but 3/8-inch tubing can be used with proper design and compatible fittings.

Bringing veterans into the trades isn’t charity; it’s capacity building. They tend to stay longer, care deeply about their work, and invest locally. Every veteran hired strengthens not just a company but the community it serves.

Driven by advancements in refrigerants, controls and system design, modern heat pumps are taking on applications once thought beyond their reach — from food service and healthcare to district energy and industrial processes. This evolution is creating new opportunities for engineers, facility owners and contractors to rethink how buildings are heated, cooled and powered.

The technology itself isn’t new — cured-in-place pipe (CIPP) methods have been around for decades — but the conversation around it is changing fast. With infrastructure spending increasing and municipalities under pressure to minimize disruption, contractors who can confidently sell and explain trenchless rehabilitation are in a position to win more business than ever before.

People from all over the world came together with a shared purpose: to learn, grow, and help one another succeed. I sat with plumbers from Georgia during one session, and over lunch, I joined a group from Wisconsin. We talked about everything from the unique challenges of running a business in different regions to funny on-the-job stories that reminded us all why we love this industry.

An owner, who has never been satisfied with the performance of his heating system, decides that the boiler must be the root cause of all the performance issues. Not wanting to spend any more than necessary, he makes several calls looking for the lowest boiler replacement price.