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Shaping Tomorrow's Global Built Environment Today
October 16, 2025
Much of the effort to grow adoption of heat pump water heaters has been focused on residential markets but as National Heat Pump Water Heater Day on Oct. 23 approaches, the picture for commercial adoption is looking bright, research shows. The North America commercial heat pump water heater market was valued at $549 million last year, and it’s expected to grow at a roughly 11% rate to $1.62 billion by 2034, according to Global Market Insights data. Read more
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By helping to boost productivity and well-being, healthy building solutions can pay off with significant financial gains, according to a report by the International Well Building Institute (IWBI). Reducing Sick Building Syndrome symptoms by 20% to 50% among office workers in the U.S. can produce an annual productivity gain of up to $200 billion. An estimated $38 billion in annual economic benefits can result from increasing minimum ventilation rates in U.S. offices from 8 L/s to 15 L/s. Read more
For the first time, renewable energy has overtaken coal as the primary source of electricity around the world, a new report says, indicating a shift in the global reliance on fossil fuels. Renewable energy contributed 34.3% of all global electricity generated in the first half of 2025, while coal fell to 33.1%. Read more
Researchers from Carleton University in Canada have designed an AI-powered model that can help improve indoor ventilation when outdoor air quality is compromised by smoke. They used an advanced mathematical model to simulate varied enclosed spaces with different settings. This data was then used to train an AI algorithm, which allows designers to simulate how changes in room layout, such as the number of vents and where they are placed, could impact the well-being of occupants. Read more
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Join host Jamie Kono, P.E., Associate Member ASHRAE, along with guests Robert Hart, P.E., and Laura Van Rietema, P.E., Associate Member ASHRAE, as they discuss the impact retrofitting windows can have on energy efficiency in commercial buildings, using One Maritime Plaza as a case study.
 
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ASHRAE Journal
By Nabil Nassif, Ph.D., P.E.
This article delves into the intricacies of dual-duct variable air volume (VAV) systems, exploring traditional configurations, drawbacks and innovative design options aimed at enhancing cost-effectiveness. Download here
ASHRAE News
The technical program for the 2026 ASHRAE Winter Conference is now available online and in the ASHRAE 365 app. View the sessions, technically focused committee meetings, and social events to start building your schedule for Las Vegas. Read more
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In Case You Missed It
Facilities managers can reduce energy costs while improving indoor air quality and health, panelists said at the International WELL Building Institute’s National Policy Summit. “We have the tools and the knowledge to make buildings that are energy efficient and decarbonized,” Bill McQuade, ASHRAE 2025-26 President, said at the event. "We have the skills, knowledge and understanding to make buildings that are healthy. And there’s no reason that both can’t be done simultaneously.” Read more
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