Plumbing & Mechanical Engineer .taxonomy-header__description{ width: 675px !important; max-width: 100% !important; }

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Comprehensive source for engineers and designers: Plumbing, piping, hydronic, fire protection, and solar thermal systems.

]]> https://www.pmmag.com/rss/6653 en-us Henderson Companies advances new technology leadership team The company announced an evolution of its technology team aimed at expanding its research capabilities, accelerating digital innovation, and strengthening operational excellence

]]> http://www.pmmag.com/articles/107303 Fri, 20 Mar 2026 11:15:45 -0400 https://www.pmmag.com/articles/107303-henderson-companies-advances-new-technology-leadership-team Code literacy: the contractor's best advantage baylesk@bnpmedia.com (Kristen R. Bayles) http://www.pmmag.com/articles/107283 Wed, 11 Mar 2026 07:00:00 -0400 https://www.pmmag.com/articles/107283-code-literacy-the-contractors-best-advantage How do North American and European hydronic systems differ? hydronicpros@gmail.com (John Siegenthaler, P.E.) http://www.pmmag.com/articles/107280 Tue, 10 Mar 2026 07:00:00 -0400 https://www.pmmag.com/articles/107280-how-do-north-american-and-european-hydronic-systems-differ 10 Influential Women of 2026 in the Plumbing Industry baylesk@bnpmedia.com (Kristen R. Bayles) http://www.pmmag.com/articles/107268 Sun, 08 Mar 2026 07:10:00 -0400 https://www.pmmag.com/articles/107268-10-influential-women-of-2026-in-the-plumbing-industry Erica Barnes, Owner and president of General Plumbing and Air Conditioning baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107269 Sun, 08 Mar 2026 07:09:00 -0400 https://www.pmmag.com/articles/107269-erica-barnes-owner-and-president-of-general-plumbing-and-air-conditioning Courtney Borja, Foreman at Therma baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107270 Sun, 08 Mar 2026 07:08:00 -0400 https://www.pmmag.com/articles/107270-courtney-borja-foreman-at-therma Crystal Carter, Executive Director, Plumbing-Heating-Cooling Contractors of Louisiana baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107271 Sun, 08 Mar 2026 07:07:00 -0400 https://www.pmmag.com/articles/107271-crystal-carter-executive-director-plumbing-heating-cooling-contractors-of-louisiana Khadija Head, Co-owner of Head’s Plumbing baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107272 Sun, 08 Mar 2026 07:06:00 -0400 https://www.pmmag.com/articles/107272-khadija-head-co-owner-of-heads-plumbing Becky Henderson, National Sales Development Manager for Domestic Buildings at Grundfos baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107273 Sun, 08 Mar 2026 07:05:00 -0400 https://www.pmmag.com/articles/107273-becky-henderson-national-sales-development-manager-for-domestic-buildings-at-grundfos Marissa Johnson, Operations Manager at Johnson & Johnson Heating, Air Conditioning & Plumbing baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107274 Sun, 08 Mar 2026 07:04:00 -0400 https://www.pmmag.com/articles/107274-marissa-johnson-operations-manager-at-johnson-and-amp-johnson-heating-air-conditioning-and-amp-plumbing Lauren Martin, VP Seaside Plumbing, Inc. baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107275 Sun, 08 Mar 2026 07:03:00 -0400 https://www.pmmag.com/articles/107275-lauren-white-vp-seaside-plumbing-inc Ariel Sizemore, Foreman at Integrated Facility Services baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107276 Sun, 08 Mar 2026 07:02:00 -0400 https://www.pmmag.com/articles/107276-ariel-sizemore-foreman-at-integrated-facility-services Kerry Sweet, Director of Marketing and Training, Streamline Services baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107277 Sun, 08 Mar 2026 07:01:00 -0400 https://www.pmmag.com/articles/107277-kerry-sweet-director-of-marketing-and-training-streamline-services Jacquelyn Wynn, COB/COO of Lindsey Brothers Plumbing & Heating baylesk@bnpmedia.com (Kristen R. Bayles) Plumbing & Mechanical’s 10 influential women of 2026 who are leading the plumbing industry to great success.]]> http://www.pmmag.com/articles/107278 Sun, 08 Mar 2026 07:00:00 -0400 https://www.pmmag.com/articles/107278-jacquelyn-wynn-cob-coo-of-lindsey-brothers-plumbing-and-amp-heating Beyond flow rates: the structural shift in state-level mechanical and plumbing regulation http://www.pmmag.com/articles/107261 Fri, 06 Mar 2026 07:00:00 -0500 https://www.pmmag.com/articles/107261-beyond-flow-rates-the-structural-shift-in-state-level-mechanical-and-plumbing-regulation Henderson Companies launches Strategic Consulting Henderson’s Strategic Consulting service engages owners, architects, general contractors, financial institutions and other key project stakeholders early in the planning process to help determine where and when to invest resources that will maximize the lifecycle value of these assets.

]]> http://www.pmmag.com/articles/107256 Tue, 03 Mar 2026 13:50:05 -0500 https://www.pmmag.com/articles/107256-henderson-companies-launches-strategic-consulting How to use H-pattern bypass valves hydronicpros@gmail.com (John Siegenthaler, P.E.) http://www.pmmag.com/articles/107236 Wed, 25 Feb 2026 12:00:00 -0500 https://www.pmmag.com/articles/107236-how-to-use-h-pattern-bypass-valves Navigating the United States perchlorate rulemaking: compliance strategies for the May 2027 final rule deadline http://www.pmmag.com/articles/107222 Thu, 19 Feb 2026 13:00:00 -0500 https://www.pmmag.com/articles/107222-navigating-the-united-states-perchlorate-rulemaking-compliance-strategies-for-the-may-2027-final-rule-deadline Commercial pipe support best practices: applications, materials and code compliance explained Pipe support plays a foundational role in the performance, safety, and longevity of commercial plumbing and mechanical systems.

]]> http://www.pmmag.com/articles/107215 Fri, 13 Feb 2026 10:00:00 -0500 https://www.pmmag.com/articles/107215-commercial-pipe-support-best-practices-applications-materials-and-code-compliance-explained Designing out water stagnation in recreation plumbing systems Stagnant water is a threat to public health in recreation facilities that are intermittently used.

]]> http://www.pmmag.com/articles/107213 Thu, 12 Feb 2026 00:00:00 -0500 https://www.pmmag.com/articles/107213-designing-out-water-stagnation-in-recreation-plumbing-systems Pfister Faucets introduces new video series: Project Stories Expanding on the momentum of Pfister Faucets’ award‑winning American Plumber Stories, Project Stories shifts the lens to the full project ecosystem—plumbers, designers, developers, architects, and builders—while putting a strong emphasis on storytelling. 

]]> http://www.pmmag.com/articles/107209 Wed, 11 Feb 2026 00:00:00 -0500 https://www.pmmag.com/articles/107209-pfister-faucets-introduces-new-video-series-project-stories Data centers: Why prefab fits baylesk@bnpmedia.com (Kristen R. Bayles) Data centers are moving faster than ever, and prefabrication is helping them keep up.

]]> http://www.pmmag.com/articles/107173 Tue, 03 Feb 2026 00:00:00 -0500 https://www.pmmag.com/articles/107173-data-centers-why-prefab-fits One way to increase the ∆T of a distribution system hydronicpros@gmail.com (John Siegenthaler, P.E.) Modern hydronic systems benefit from wider temperature drops, energy scavenging, and careful integration with domestic hot water.

]]> http://www.pmmag.com/articles/107165 Fri, 30 Jan 2026 00:00:00 -0500 https://www.pmmag.com/articles/107165-one-way-to-increase-the-t-of-a-distribution-system Revisiting “forever chemicals”: EPA updates TSCA PFAS reporting rules Proposed adjustments could ease reporting requirements while maintaining oversight of high-risk substances.

]]> http://www.pmmag.com/articles/107162 Thu, 29 Jan 2026 00:00:00 -0500 https://www.pmmag.com/articles/107162-revisiting-forever-chemicals-epa-updates-tsca-pfas-reporting-rules Precis Engineering + Architecture caps year with two C-suite additions The firm expanded to 146 employees in 2025 with 7.5 percent revenue growth and recorded 76 percent new-hire employee growth since 2023. 

]]> http://www.pmmag.com/articles/107158 Wed, 28 Jan 2026 12:10:10 -0500 https://www.pmmag.com/articles/107158-precis-engineering-architecture-caps-year-with-two-c-suite-additions New pipe sizing standard brings critical changes and innovation to building services This new standard will mark a turning point for water supply and sanitary drainage pipe sizing, which together haven’t received a meaningful update since the 1940s.

]]> http://www.pmmag.com/articles/107134 Wed, 21 Jan 2026 00:00:00 -0500 https://www.pmmag.com/articles/107134-new-pipe-sizing-standard-brings-critical-changes-and-innovation-to-building-services How Hidden Threats in Closed-Loop Water Systems Can Lead to Legionella Contamination forstern@bnpmedia.com (Natalie Forster) How material selection, flow dynamics, temperature control and commissioning practices influence microbial and Legionella risk.

]]> http://www.pmmag.com/articles/107120 Thu, 15 Jan 2026 00:00:00 -0500 https://www.pmmag.com/articles/107120-how-hidden-threats-in-closed-loop-water-systems-can-lead-to-legionella-contamination Bring Back the Trades launches Spring 2026 Skills Expos with events in New Hampshire and Maine Bring Back the Trades has announced its Spring 2026 Skills Expos, returning to New Hampshire and expanding into Maine for the first time with hands-on events designed to introduce students and families to careers in the skilled trades.

]]> http://www.pmmag.com/articles/107118 Wed, 14 Jan 2026 14:31:51 -0500 https://www.pmmag.com/articles/107118-bring-back-the-trades-launches-spring-2026-skills-expos-with-events-in-new-hampshire-and-maine 2025 Products of the Year forstern@bnpmedia.com (Natalie Forster) In today’s technology-heavy plumbing and mechanical industry, “must-see” products aren’t just shiny new equipment, they’re solutions that help solve today’s labor constraints, reduce callbacks, and keep buildings running with fewer surprises.

]]> http://www.pmmag.com/articles/107100 Wed, 07 Jan 2026 00:00:00 -0500 https://www.pmmag.com/articles/107100-2025-products-of-the-year Plan B Climatech expands MEP talent consulting operations in Texas with Dallas office opening and senior appointments The expansion is led by the appointment of Elijah Graham and Hailey Devillier as Co-Heads of Texas MEP

]]> http://www.pmmag.com/articles/107095 Tue, 06 Jan 2026 14:00:48 -0500 https://www.pmmag.com/articles/107095-plan-b-climatech-expands-mep-talent-consulting-operations-in-texas-with-dallas-office-opening-and-senior-appointments