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Code Classroom

Emergency Response to Legionella Bacteria Suspected or Confirmed in a Building Water System, Part 3

Here are the steps for performing the emergency flushing and disinfection in a contaminated building water system.
November 3, 2025
Ron George

Learn the critical steps for safely flushing, disinfecting, and documenting building water systems when Legionella bacteria are suspected or confirmed.


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AHR Expo Announces 2026 Innovation Awards Winners

October 29, 2025

Winners in ten industry categories are chosen annually to represent the most innovative products and technologies in the market today.


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Feature

Simplifying the Design of Ground Heat Exchangers for Ground Source Heat Pumps, Part 2

Optimizing GHEX design enhances control, reliability and efficiency under all load conditions.
October 1, 2025
Albert Wallace

In Part Two of his deep dive into geothermal design, Albert Wallace explores a modular, patented ground heat exchanger (GHEX) system architecture that balances cost, reliability, and energy efficiency.


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Feature

The Current Debate: Gas vs. Electric Heating in Modern Buildings

Innovative electric heating systems, such as heat pumps and sewage waste energy exchange, can enhance sustainability and efficiency in building design.
October 1, 2025

In their joint article, Anthony Winning and Lhymwell Manalo explore the growing shift from natural gas to electrified systems in modern buildings—highlighting the role of early coordination, heat pump technology, and innovative energy recovery strategies that redefine sustainability and resilience in 21st-century design.


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Feature

Sustainability Flows into Plumbing: Green Building Trends 2025

Learn more about the key innovations that are currently driving the integration of sustainable plumbing practices.
October 1, 2025

From rainwater harvesting to geothermal systems and smart leak detection, John A. Mullen explores how cutting-edge plumbing strategies are reshaping sustainable design in 2025 to meet the challenges of climate change, efficiency, and public health.


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Legal Pipeline

The Limits of a Contractual Waiver of Consequential Damages

Direct damages, which naturally result from a breach, are not waived even with an express contractual clause.
October 1, 2025
Steven Nudelman

I represent various industry players in construction contract negotiations and, invariably, at least one party wants a “waiver of consequential damages” clause in the agreement. 


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FPE Corner

Clear the Pipe: A Guide to Fire Sprinkler System Drainage

Coordinating drain locations and discharge points with plumbing engineers and architects ensures water is safely diverted, preventing damage and maintaining system reliability.
October 1, 2025

Proper drainage is a critical yet often overlooked aspect of fire sprinkler and standpipe system design—Eugene Green, PE, explores essential coordination strategies to prevent water damage and ensure fire protection systems operate effectively when needed.


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Code Classroom

Emergency Flushing and Disinfection for Legionella, Part 2

Building owners, operators or water management teams can use a checklist to develop a customized emergency flushing and disinfecting protocol or use it as part of a water management plan.
October 1, 2025
Ron George

With Legionnaires' disease outbreaks on the rise across the U.S., building owners must act fast—this article outlines critical emergency flushing and disinfection steps to stop Legionella bacteria before it spreads.


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Feature

Q&A with Tom Lentine, Vice President of Holby Valve

Simplicity and durability of its product line and a team of dedicated employees and manufacturers’ reps are key to this organization’s successful business model.
September 29, 2025
Amalia Deligiannis

With rugged simplicity, smart monitoring, and a customer-first ethos, Holby continues to earn trust valve by valve, decade after decade.


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NIBS Assumes Management of Sustainable Facilities Tool to Power Future of Federal Building Innovation.webp

NIBS Assumes Management of Sustainable Facilities Tool to Power Future of Federal Building Innovation

September 22, 2025

The announcement marks a significant strategic milestone in national efforts to modernize and strengthen the built environment supporting America’s federal missions.


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