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Shaping Tomorrow's Built Environment Today
August 14, 2025
The HVAC equipment market is witnessing strong growth driven by rising urbanization, smart building trends and demand for energy-efficient climate control solutions. The global market size reached $231.9 billion in 2024, and it is projected to reach $356.9 billion by 2033, exhibiting a growth rate of 4.66% during 2025-2033. Read more
Pollen, dirt, moss, algae and dead birds are some of the things cleaning crews encounter when cleaning New York City's ubiquitous rooftop water-cooling towers, according to representatives of companies doing such dirty work. Building water-cooling systems are in the spotlight as New York City grapples with a cluster of Legionnaires’ disease, a severe pneumonia whose cause has long been linked to water droplets or vapors emanating from water-cooling towers. Read more
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Swedish clean energy tech start-up Aira has raised €150 million ($174.75 million) in equity from existing backers as it looks to speed up the rollout of its heat pump systems across Europe and to tap into demand for alternatives to gas heating. The European Union is aiming to deploy at least 30 million heat pumps this decade to lessen dependence on imported fossil fuels, although sales in Europe's heat pump market fell in 2023 after a record 2022. Read more
The 2025 Canadian wildfire season has shattered records, burning over 6.26 million hectares—four times the 10-year average—and casting a toxic haze across North America. With smoke drifting into U.S. states, the crisis has exposed the fragility of global air quality infrastructure. For investors, this disaster is a catalyst for a seismic shift in demand for air purification, real-time monitoring and public health solutions. Read more
Join ASHRAE Journal technical editor Rebecca Matyasovski and guest David Schurk as they delve into the complexities of managing temperature and humidity in hospitals, exploring the benefits of reducing reheat to improve HVAC&D system sustainability. 
 
 
Hot Air Podcast: Understanding Mold Problems Inside Housing With George Tsongas
ASHRAE Journal
By Carlos Orlando Mejia, Maya Spalding-Fecher, Bryon Krug, and Joshua Bookstaver
The U.S. Department of Energy reports that data centers have a substantially higher energy consumption of 10–50 times per square foot compared to typical commercial buildings, accounting for approximately 2% of the electricity consumed annually in the United States. Data centers present significant opportunities for energy savings and efficiency improvements. This article presents a case study of a project undertaken to re-architect a data center, aiming to achieve substantial energy consumption reduction and enhance resilience in an already highly efficient building. Download here
ASHRAE News
ASHRAE recognizes the growing concern surrounding the recent clusters of Legionnaires’ disease cases, specifically in New York City and parts of Ohio, reaffirming the Society’s commitment to supporting public health and building safety through accessible guidance on Legionellosis risk management. Read more
Products
In Case You Missed It
Johnson Controls International announced it has completed the sale of its Residential and Light Commercial HVAC business to the Bosch Group. The transaction, which is valued at $8.1 billion, includes the North America ducted business as well as the global residential joint venture with Hitachi, Ltd. Read more
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