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Home » Authors » Christoph Lohr

Articles by Christoph Lohr

An engineering worker bending over, repairing a pipeline outside. The pipes are orange in color.

Building the future of plumbing science: IAPMO’s expanding water research capacity

Water research will shape the future of plumbing system design.
Christoph Lohr headshot
Christoph Lohr
July 1, 2025

This article highlights how IAPMO is enhancing research through the Water Demand Calculator®, the Innovation and Research Fund, and the integration of ESPRI, signaling a shift towards evidence-based practices that align science with codes.


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Businessman using a laptop with virtual online survey with digital forms and checklists floating above it.
Strategic Plumbing Insights | Christoph Lohr

The plumbing industry survey we need

It’s time plumbing engineering was recognized as an essential, specialized field.
Christoph Lohr headshot
Christoph Lohr
November 19, 2024

Plumbing engineering is increasingly complex, facing challenges like water conservation and safety concerns, yet it remains underappreciated. A focused industry survey is essential to collect vital data on hiring practices and opportunities for plumbing professionals compared to HVAC. This will help elevate the field's recognition and address the risks of neglecting plumbing expertise.


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Exterior image of the La Kretz Innovation Center. ASPE LA chapter.
Strategic Plumbing Insights | Christoph Lohr

Witnessing an Energy Water Nexus

LADWP La Kretz Innovation Center, ASPE LA Chapter and IAPMO’s Water Demand Calculator in California.
Christoph Lohr headshot
Christoph Lohr
August 6, 2024

On May 8th, I presented at the LADWP La Kretz Innovation Center for the ASPE LA Chapter on California’s adoption of the Water Demand Calculator. I spoke about the intersection of water and energy, emphasizing their crucial link in modern civilization.


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May 2024 Christophe Lohr column feature image of Regulations Concept with Wooden Blocks in Red Color
Strategic Plumbing Insights | Christoph Lohr

The importance of third-party product standards and professional qualifications

Industry professionals should engage in the development of new standards and serve on technical committees to help shape the future of plumbing and mechanical systems.
Christoph Lohr headshot
Christoph Lohr
May 6, 2024

Plumbing design professionals rely on third-party product standards and qualifications to minimize design risk efficiently. Written specifications often reference product certifications.


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Water bill payment, tiny people check readings on dial of water meter to pay cash money, GettyImages
Strategic Plumbing Insights | Christoph Lohr

The year ahead: Right-sizing of plumbing systems

IAPMO’s Water Demand Calculator provides an industry tool for correctly sizing pipes.
Christoph Lohr headshot
Christoph Lohr
February 5, 2024

The Water Demand Calculator has been adopted in several states and cities, including California and Seattle, and is expanding peak flow rate calculations into commercial buildings. The future looks bright as version 3.0 is in the works for commercial buildings.


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01 PME 1123 CLMN Christoph Lohr feature image
Strategic Plumbing Insights | Christoph Lohr

Plumbing science research trends

Emerging trends in plumbing science.
Christoph Lohr headshot
Christoph Lohr
November 6, 2023

In my last column, I focused on talking about how engineered plumbing systems were at a crossroads. This month, I would like to discuss some of the emerging trends in plumbing science.


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01 PME 0923 CLMN Christoph Lohr feature
Strategic Plumbing Insights | Christoph Lohr

Engineering of plumbing systems at a crossroads

Legal concerns for engineering firms.
Christoph Lohr headshot
Christoph Lohr
September 5, 2023

While many non-plumbing design professionals think plumbing engineering isn’t particularly difficult, real-world data and the latest developments say otherwise.


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Plumbing engineering industry outlook

Christoph Lohr: Plumbing engineering industry outlook

Plumbing science is shifting quickly.
Christoph Lohr headshot
Christoph Lohr
May 5, 2023

If you follow me on LinkedIn, you know I am passionate about advocating for plumbing engineers and designers. I have regularly written about the need for plumbing engineers, especially in solving our various water crises and improving our medical gas systems. The lesson is clear: plumbing systems are continually increasing in complexity.


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STRATEGIC PLUMBING INSIGHTS

Christoph Lohr: The plural sector and plumbing

An important driver of change in the construction industry.
Christoph Lohr headshot
Christoph Lohr
March 3, 2023

In terms of civic engagement, younger generations have been voting and volunteering at higher rates than previous generations. Regardless of one’s political beliefs, I think we can all agree that politics has become a much bigger portion of daily life. Whether on social media or at our local coffee shop, we all are spending more energy talking about the bigger picture.


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irrigation (farming)

Christoph Lohr: The water-energy nexus and water conservation

Misunderstanding Roy — Part 5
Christoph Lohr headshot
Christoph Lohr
January 5, 2023

Almost 80% of all water consumption comes from two groups: No. 1, thermoelectric power, and No. 2, irrigation (farming). Public supply, which includes industrial buildings, commercial buildings and residences, accounts for only 10%.


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Radiant All Stars Roundtable discusses low-temperature systems, and more

Radiant All Stars Roundtable discusses low-temperature systems, and more

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Radiant & Hydronics All-Stars Roundtable 2025

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AI can boost efficiency and profitability for plumbing, HVAC contractors

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    • WATER TREATMENT
    • 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
    • CODES
    • GREEN PLUMBING & MECHANICAL
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    • COLUMNS
      • Codes Corner
      • Natalie Forster: Editorial Opinion
      • Guest Editorial
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  • RESOURCES
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