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Home » Topics » Plumbing & Mechanical Engineer

Plumbing & Mechanical Engineer
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Boiler System
Renewable Heating Design | John Siegenthaler

How to change the staging status of two heat sources

Who's on first?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
April 6, 2026
What if your boiler system could automatically switch between heat sources based on energy cost? A closer look at staging logic, relays and smarter system control.
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Chris DeLay, Aaron Henderson and Dustin Schafer.

Henderson Companies advances new technology leadership team

This shift transitions the firm’s technology discipline into three specialized yet connected teams, each led by a dedicated executive.
March 20, 2026

The company announced an evolution of its technology team aimed at expanding its research capabilities, accelerating digital innovation, and strengthening operational excellence


Read More
Plumber with Clipboard

Code literacy: the contractor's best advantage

Traditionally, code knowledge was defensive. Today, it's an offensive strategy.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 11, 2026
Codes are expanding into areas like resilience, electrification, water quality management and long-term accountability. No longer are they static rulebooks; they’re living frameworks shaping how systems perform over decades.
Read More
Heating Pipe Layout
Renewable Heating Design | John Siegenthaler

How do North American and European hydronic systems differ?

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
March 10, 2026
When comparing hydronic systems designs that are common in North America with typical European equivalents, comparisons reveal details that would be beneficial in either market, but are not “traditional” in one market or the other.
Read More
Influential Women in Plumbing
Women in the Industry

10 Influential Women of 2026 in the Plumbing Industry

Ten women share their history in the trades, and what they love about the industry.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
P&M highlights ten trailblazers in the industry for Women's History Month.
Read More
Erica Barnes
10 Influential Women of 2026 in the Plumbing Industry

Erica Barnes, Owner and president of General Plumbing and Air Conditioning

Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
Erica Barnes is one of Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.
Read More
Courtney Borja
10 Influential Women of 2026 in the Plumbing Industry

Courtney Borja, Foreman at Therma

Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
Courtney Borja is one of Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.
Read More
Crystal Carter
10 Influential Women of 2026 in the Plumbing Industry

Crystal Carter, Executive Director, Plumbing-Heating-Cooling Contractors of Louisiana

Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
Crystal Carter is one of Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.
Read More
Khadija Head
10 Influential Women of 2026 in the Plumbing Industry

Khadija Head, Co-owner of Head’s Plumbing

Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
Khadija Head is one of Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.
Read More
Becky Henderson
10 Influential Women of 2026 in the Plumbing Industry

Becky Henderson, National Sales Development Manager for Domestic Buildings at Grundfos

Kristen Bayles 200x200 headshot
Kristen R. Bayles
March 8, 2026
Becky Henderson is one of Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.
Read More
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