2024 January

The January 2024 issue of PM Engineer features heat pumps that have emerged as champions of energy efficiency, a preview of the AHR Expo and ASHRAE Winter Conference in Chicago, and much more!

Heat pumps maximize efficiency, combining hot water and space heating

The road to electrification and decarbonization.

Nicole Krawcke

January 15, 2024

>By combining water heating with space heating through heat pumps, a synergy is achieved that maximizes efficiency. This dual functionality is particularly relevant given the constant demand for hot water in residential, commercial and industrial settings.

Dan Holohan teaching in Mechanical Room 2019

Celebrating the illustrious career of a renowned hydronics industry voice

Industry legend Dan Holohan retires from writing.

Nicole Krawcke

Natalie Forster

January 24, 2024

There is no shortage of industry patrons who’ve been impacted by Dan Holohan — manufacturers, reps, plumbers, and fellow writers alike. His love for teaching, writing, giving back and just undeniable kindness have left a mark.

Case Study

New e-commerce headquarters features hot water on demand

Hot water recirculating system features CircuitSolver balancing valves.

Christine Tarlecki

January 22, 2024

A large e-commerce company’s headquarters in Arlington, Virginia features CircuitSolver balancing valves in the hot water recirculating system.

PM Engineer Profile: Examining plastic pipe trends in commercial markets

Key trends to watch in 2024.

Nicole Krawcke

January 17, 2024

PM Engineer Chief Editor Nicole Krawcke sits down with Lance MacNevin, director of engineering, building and construction division of the Plastics Pipe Institute, to discuss top trends influencing the use of plastic pipes in commercial applications.

Exterior shot of 2023 AHR Expo in Atlanta, GA.

AHR Expo, ASHRAE Winter Conference focus on decarbonization, climate change and new HVACR technologies

HVACR’s largest events of the year return to Chicago Jan. 20-24

Nicole Krawcke

January 4, 2024

The largest HVACR event of the year, the 2024 AHR Expo returns to the Windy City Jan. 22-24, while the co-located 2024 ASHRAE Winter Conference will take place Jan. 20-24 at the Marriott Marquis Chicago.

Guest Editorial | Bob Silva

The key benefits of heat-traced, single-pipe hot water delivery systems

Moving toward a sustainable, electrified future in 2024.

Bob Silva

January 11, 2024

As the world seeks more sustainable and electrified solutions for common construction and engineering challenges, the ways in which large buildings deliver hot water to tenants are worth examination.

Editors Note Column opening image of building rooftop wind turbines and solar panels

Editor's Note | Nicole Krawcke

2024 — a new year with a heightened focus on sustainability and efficiency

Regulations push the need for greener buildings.

Nicole Krawcke

January 10, 2024

In my last column of 2023, I discussed the growing use of Artificial Intelligence in engineering and construction firms. This month, I want to focus on another trend we will see continuing into this next year — sustainability and efficiency.

PME 0124 Dave Yates Column Air Conditioner opening image

From the Mechanical Room | Dave Yates

Technology and needs change throughout the years

Transitions

Dave Yates

January 9, 2024

The year 1979 was great for transitions — I struck out on my own on Sept. 1, 1979 to pursue the American Dream of owning my own business and charting my destiny.

PME John Siegenthaler Column. Solar panel closeup skyline background

Renewable Heating Design | John Siegenthaler

Complementary fuel sources

Progression to renewably sourced energy should not be immediate, or exclusive to fossil fuels.

John Siegenthaler P.E.

January 3, 2024

Like most people, I have opinions and beliefs about our current energy sources, and specifically how they play into the future of hydronic heating and cooling technology.