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Private equity firm Sentinel Capital Partners has sold the HVAC division of NSI Industries to Lennox International for about $550 million. NSI Industries, a supplier of branded electrical components across the U.S. and Canada, will streamline operations to focus on its core electrical business, Sentinel said. The HVAC sector has seen a wave of strategic deals, including Bosch's $8 billion acquisition of Johnson Controls residential and light commercial HVAC business in 2024, as firms refocus on energy-efficient technologies and core operations. Read more
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These are not the last generation’s lighting controls. They are not even last year’s lighting controls in many cases. Technology has responded rapidly in recent years to growing demands from building owners for more control over lighting in institutional and commercial facilities, as well as evolving expectations from users looking for more appealing and healthier workspaces. Read more
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Research suggests that air quality, both indoors and outdoors, can affect your eye health and lead to both immediate and long-term chronic effects. While the immediate symptoms are usually irritation, long-term exposure to certain air pollutants may be associated with more serious conditions, including glaucoma, cataracts and more. People’s specific eye health issues due to air quality issues inside their homes can depend on many factors, including the specific substances or types of air pollutants and how they irritate or damage the eyes. Read more
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The AHR Expo today announced the winners of the 2026 AHR Expo Innovation Awards. Winners in 10 industry categories are chosen annually to represent the most innovative products and technologies in the market today. Read more
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Join ASHRAE Journal Technical Editor Rebecca Norris and Mahmood Farzaneh Gord as they explore the benefits of duct sealing, highlighting how it can lead to energy savings in commercial buildings.
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By Wade Bennion, P.E., and Randy Neumann, P.E.
Sunburst Elementary School in Layton, Utah, is a two-story building with a total area of 97,024 ft2 (9014 m2). The school’s mechanical system is designed to use multiple technologies in combination for efficient building performance, with four stages of cooling (economizer, ground loop free cooling, direct evaporative, and indirect evaporative cooling from a cooling tower), and a state-of-the-art building controls strategy using boilers and a water-to-water heat pump. Download here
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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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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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