HVAC Maintenance

Milwaukee Tool continues to drive innovation on the jobsite with the introduction of the M18™ Brushless Handheld Vacuum, delivering the highest sustained airflow for quick cleaning tasks, and effective cleanup in a variety of jobsite conditions.   Engineered to meet the demands of remodelers, carpenters, electricians, plumbers, HVAC technicians, and transportation maintenance professionals, this vacuum combines unmatched performance, long-lasting filter life, and ultimate versatility to maximize productivity. M18™ REDLITHIUM™ XC5.0 Battery Pack The M18™ Brushless Handheld Vacuum is optimized for fast, efficient cleaning of common jobsite debris, including sawdust, drywall dust, wood shavings, and metal shavings. Powered by a brushless motor, this vacuum delivers 40 CFM and 63 inches of suction ensuring powerful, consistent cleaning. Featuring an integrated debris separator, the vacuum maintains the highest sustained airflow, reducing downtime spent cleaning filters and performing maintenance. When paired with an M18™ REDLITHIUM™ XC5.0 Battery Pack, users achieve over 20 minutes of runtime, eliminating interruptions and maximizing productivity. M18™ Brushless Handheld Vacuum Designed to meet the needs of professionals, this vacuum features a compact form factor, making this the ultimate solution for quick clean-up tasks in tight spaces. This vacuum is kitted with a 1-1/4" X 4' Flexible Hose; (2) 1-1/4" Extension Wands; 1-1/4" Crevice Tool; and 1-1/4" Pivoting Floor Tool providing the most versatile spot-clean up. Weighing only 3.7 lbs, the M18™ Brushless Handheld Vacuum is designed for comfort and control. A balanced, ergonomic handle ensures effortless maneuverability, while the streamlined design minimizes fatigue for comfortable cleaning. Vacuum’s compact ergonomic design Vacuum maintenance is simplified with a removable HEPA filter to capture fine debris and an easy-to-remove tank for quick debris disposal. This vacuum’s compact ergonomic design, combined with best-in-class performance, helps professionals work faster and more efficiently. Milwaukee is committed to improving productivity by providing performance-driven and trade-focused solutions so users can perform an entire day's work on one battery system. The M18™ Brushless Handheld Vacuum is fully compatible with the entire M18™ line, now offering more than 300 solutions. Specifications M18™ Brushless Handheld Vacuum (0892-20) - $179 Voltage: 18V  CFM: 40 Suction: 63” of H20 Capacity: 0.2 Gallon Warranty: 5 Year Tool Includes: (1) M18 Brushless Handheld Vacuum; (1) HEPA Filter (49-90-1948); (1) 1-1/4" X 4' Flexible Hose; (2) 1-1/4" Extension Wands; (1) 1-1/4" Crevice Tool; (1) 1-1/4" Pivoting Floor Tool.

Women in HVACR, a nonprofit organization dedicated to empowering women in the heating, ventilation, air conditioning and refrigeration trades, has teamed up with Carrier Global Corporation, a pioneer in the HVACR industry, to award 11 scholarships to outstanding female students blazing paths in the skilled trades. The scholarships, presented during the 2025 Women in HVACR Conference in Las Vegas, celebrate the next generation of women advancing in an industry historically underrepresented by female professionals. Each recipient received $5,000 in recognition of her academic excellence, leadership potential and commitment to fostering diversity and innovation in the skilled trades. Five additional scholarship awards Six students received scholarships directly from Women in HVACR, while five additional scholarship awards were presented by Carrier in partnership with the nonprofit organization for a total of $55,000. “These scholarships represent more than financial assistance; they are an investment in the future of our industry,” said Women in HVACR President, Kristin Gallup, adding “Each recipient has shown the drive, talent and vision to lead the future of HVACR, and their contributions will help shape the next generation of innovators in the field.” The 11 recipients are: Kristine Berg: Berg transitioned into HVAC after a career in maintenance and facilities work. In addition to attending Hennepin Technical College in Minnesota, she’s gained hands-on experience in both residential and commercial settings with a goal to give back by mentoring young women in the trades. Hannah Dearman-So: A recent graduate of Harvey Mudd College in Claremont, California, with a degree in general engineering, Dearman-So has launched her career as a mechanical engineer specializing in HVACR and plumbing design. Ashley Haynes: A non-traditional student, Phi Theta Kappa member at Coastal Alabama Community College and mother of five, Haynes is pursuing a career in HVACR to empower women and inspire others that it’s never too late to follow their dreams. Sarah Kitchen: Kitchen is an HVACR student driven by a passion for problem-solving and breaking barriers in the skilled trades. Inspired by her daughters, her goal is to earn her HVACR and electrical licenses and one day teach the next generation of female technicians. Beyonca Mack: Inspired by her family’s legacy in HVAC, Mack is determined to break barriers and promote energy-efficient practices while creating job opportunities for others. Her ultimate goal is to own her own HVAC company and inspire more women to enter the skilled trades. Alerry McCarthy: Raised in Broward County, Florida, McCarthy is studying construction management at North Carolina Agricultural & Technical State University in Greensboro, North Carolina, and is passionate about using HVACR systems to help create affordable, energy-efficient housing for underserved communities. Aya Morgan: From Science Olympiad to HVAC project engineering, Morgan has combined her love for problem-solving with her passion for sustainability. She’s interned with Legrand North America and Pacific Rim Mechanical and aspires to lead projects focused on equitable design and sustainable housing. Samantha Murphy: After 12 years as a commercial driver, Murphy transitioned into the HVAC industry, drawn by the field’s technical and sustainable focus. She is enrolled at Lincoln Tech in Mahwah, New Jersey, and plans to pursue an associate degree. Mahek Parvez: A computer engineering student at Purdue University, Parvez invented “SunHarvested CoolRooms,” an electricity-free cooling system that preserves farm produce. Her work has been recognized globally, and she continues to merge sustainability with technology to empower women and improve communities. Lila Tychsen: Inspired by her uncle who runs an HVAC company, Tychsen plans to become a sheet metal fabricator. A hands-on learner, she discovered her passion for fabrication through technical training and home renovation projects with her family. Sophia Valenzuela: An EPA-certified HVAC student and president of Riverside (California) City College’s HVACR Student Union, Valenzuela is a first-generation college student passionate about breaking industry norms. She’s working toward becoming a commercial service technician and eventually starting her own business. Nation’s infrastructure and sustainability goals “By investing in education and mentorship, Women in HVACR and Carrier are helping create pathways for women to excel in technical careers that are essential to the nation’s infrastructure and sustainability goals,” Gallup said. “By empowering women to lead and innovate within the HVACR industry, we strengthen its foundation and ensure it continues to evolve, adapt and thrive.”

Ireland’s most northerly four-star hotel, the Ballyliffin Lodge and Spa (Ballyliffin Lodge) is nestled on Donegal’s Inishowen Peninsula, offering panoramic views over Malin Head. Its spectacular setting highlights the hotel's dedication to preserving the area's natural beauty, as further evidenced by its use of green technologies to heat, water and power its 40 rooms, spa, gym and restaurant. Steps taken to achieve this aim include installing a large 288kW solar array to the rear of the hotel and commissioning a natural spring well to reduce water usage and mains consumption. Yet one of Ballyliffin Lodge’s most ambitious projects involved upgrading its heating system to include a 500kW, biomass boiler, burning woodchips to supply its heating and hot water needs. Reducing Carbon, Reducing Costs Supported by a €450,000 investment and grants from the Sustainable Energy Authority of Ireland’s Support Scheme for Renewable Heat, this project is crucial to the hotel's goals of adopting greener practices and reducing operating costs. With Ireland’s carbon tax set to rise annually from €56 per ton of CO2 at present, to €100 per ton by 2030, installing a boiler that would save up to 250 tonnes of carbon dioxide annually made clear commercial sense for the hotel. “We’re in an area of stunning natural beauty and protecting and maintaining that is very important,” says Ron Kerrigan, Hotel General Manager for Ballyliffin Lodge and Spa. “It’s very cost-effective to carry out these sorts of initiatives, and the installation of this boiler would improve the hotel’s efficiency throughout." “People not in the know would think ‘oh, you’re cutting down trees, you’re cutting down forests, how does that work?’ But it’s a renewable source of heat and energy, and the trees go through an eight-year life cycle, so as quick as we’re cutting them, we’re also planting them, preserving and maintaining the local area’s greenery.” Making Molehills Out of Mountains To carry out this project, Ballyliffin Lodge engaged the services of CHP Mechanical Services Ltd, a County Down-based renewable energy and commercial heating installer specializing in Biomass boiler installations, including off-site prefabricated plant rooms. The need to preserve the peninsula’s pristine environment meant this expertise was a priority, as the existing building proposed to house the boiler was situated a kilometer away from the hotel – in this case, on the side of a nearby mountain. Faced with this challenge, the team at CHP Mechanical Services Ltd specified a Herz Firematic 499kw Biomass Boiler with a 50m³ adjoining space within the building from which woodchips are transferred via a spring agitator and screw conveyor. Final requirement for the pipework  In order to efficiently transfer heat from the plant room to Ballyliffin Lodge’s buildings without disrupting the local landscape, CHP Mechanical Services Ltd needed suitable underground pre-insulated pipework that could offer excellent thermal performance. The distance from the hotel presented other logistical concerns. With no roads going up the side of the mountain to the biomass boiler plant room, and very few in the local area at all, the specified pipework needed to be lightweight and flexible. As the hotel’s operations could not be interrupted, a final requirement for the pipework was speed of installation to ensure there wasn’t any downtime. Enduring Supply Chain Relationships “The nature of Ballyliffin Lodge’s business and location presented clear challenges for this particular project,” says John Smyth, Managing Director of CHP Mechanical Services Ltd. “After all, if you can’t transfer its heat effectively through its pipes, it doesn’t matter how effective and sustainable your boiler is." “We’ve been installing this kind of system for over 13 years, so we know the importance of only working with proven, reliable manufacturers for all components. This includes pipework, which is extremely important on projects of this kind. We've had a long and solid relationship with REHAU, using its PE-Xa pipe, RAUTHERMEX, to connect offsite plantrooms to buildings. The team is very familiar with this pipe system and have always been impressed with its reliability, thermal performance and how easy it is to install." REHAU’s RAUTHERMEX bonded pipe system consists of a polyurethane foam insulation core and a corrugated outer jacket that keeps operational heat losses particularly low. Its fine-pored PU foam, developed using specialist process technology, offers high thermal insulation, making it ideal for linking Ballyliffin Lodge’s buildings to the boiler plantroom a kilometer away Making a Connection Alongside its thermal performance benefits, RAUTHERMEX’s unique connection technology, EVERLOC, offered a level of ease of installation and reliability for CHP Mechanical Services Ltd. It uses a compression sleeve to create a permanently leak-tight connection between the pipe and the fitting, with no O-rings or other sealants, producing an independently certified cavity-free joint. As the pipe itself is the sealant, the installation is immediately ready for pressure and a simple visual inspection is sufficient to know if the connection is complete. For projects such as Ballyliffin Lodge where swift installation over long distances of pipework is key, this ability to quickly and comprehensively fit and inspect a flexible pipe system is invaluable. Having worked with REHAU systems for around 13 years CHP Mechanical Services Ltd are very familiar with the complete REHAU system. Flexibility of the pipe systems “Being able to quickly procure, transport and fit pipework is imperative for this sort of project,” says John. “The hotel was keen to avoid downtime, so the fact REHAU was able to provide the swift support and high-quality products we’ve come to expect was highly appreciated." “To solve issues around the lack of roads, we actually constructed a bespoke de-coiling machine to lay down the one kilometer of RAUTHERMEX required. It proved highly successful, largely due to the flexibility of the pipe systems, and it is certainly something we will consider using again.” Empowering Businesses to Go Green With these complex logistics in mind, Mark Thompson, Area Sales Manager for REHAU Building Solutions Northern Ireland & Republic of Ireland, was also on hand to ensure the project’s smooth running. With the boiler now installed and running, the success of Ballyliffin Lodge’s uniquely complex works has resulted in further enquiries from other hotels in Ireland. Moreover, testament to the success of both this installation and that of the other green upgrades implemented is the fact that Ballyliffin Lodge was shortlisted as a finalist for the 2024 edition of the Sustainable Energy Authority of Ireland’s Energy Awards. Transitioning to greener heating systems “The rising carbon tax is definitely focusing minds for businesses such as hotels,” he explains. “As the works at Ballyliffin Lodge show, transitioning to greener heating systems is a sensible commercial decision." “The CHP Mechanical Services Ltd team have clearly demonstrated what an excellent installation looks like in this field. Using our pioneering RAUTHERMEX components, their expertise clearly demonstrates what’s possible even in remote areas such as the Inishowen Peninsula. We advise similarly situated businesses to explore environmentally sympathetic boilers and offsite plantrooms, especially in national markets accelerating their decarbonization efforts.”

Hamworthy Heating, technical experts in commercial heating and hot water products, has launched a new Commercial Service Division to deliver efficient, nationwide support and a first class customer experience. As part of Hamworthy Heating’s continued investment in innovation and service excellence, the new Commercial Service Division brings together the company’s expertise across all commercial heating and hot water products into one dedicated team. This specialist service gives customers direct access to nationwide commissioning, warranty, servicing and breakdown support from highly skilled engineers. Condensing commercial boilers Hamworthy Heating customers can now benefit from next-day recovery response under warranty, supported by a 90% first-time fix rate on condensing commercial boilers and water heaters, helping to minimise downtime and keep systems running efficiently. This service is backed by clear and detailed reports delivered within three working days. The new division also provides support for Tyneham heat pumps. Together, this approach delivers a reliable, customer-focused service that ensures commercial heating and hot water systems continue to perform at their best. Fast response times “Our commitment to the commercial market goes beyond supplying quality products, it’s about making it easier for customers to get the support they need, when they need it,” comments Chris Jessop, Customer Relationships Director. Emma King, Customer Service Scheduling Manager, adds: “Through the new Commercial Service Division, we can offer unparalleled nationwide coverage, fast response times, and direct access to highly skilled engineers. This strengthened service directly addresses the needs of our commercial customers, and we’re confident it will set standards for commercial heating support in the UK.”

FSW UK partnered with Austin Broady Associates and Mitsubishi Electric to install sustainable HVAC upgrades at the Greater Manchester office campus, Exchange Quay. Investment Managers for Exchange Quay Till Asset Management were looking to upgrade the business complex, located on the Salford Docks, with a new sustainable and energy efficient heating system. The project began with Building 8, a ten storey structure housing 116,000ft2 of office space. FSW UK worked with air conditioning contractors Austin Broady Associates to assess their then-current 600kW gas boilers and design a sustainable alternative capable of meeting the requirements of Exchange Quay’s largest block. Most compatible hardware Oliver Broomfield identified Mitsubishi Electric’s CAHV-P500YB-HPB 40kW commercial air heat pumps FSW Projects Manager - Oliver Broomfield identified Mitsubishi Electric’s CAHV-P500YB-HPB 40kW commercial air heat pumps as the most compatible hardware for Building 8. These heat pumps were able to be retrofitted into the existing system, replacing the gas boilers while utilizing the building’s four-pipe fan coil units to create a low carbon, energy efficient, and sustainable HVAC system. The success of this project has established a new baseline for sustainable HVAC upgrades not just at the Exchange Quay, but nationwide. FSW’s application of heat pumps within an existing heating and cooling system is now being used as a blueprint for similar ventures in commercial properties across the UK because of its use of the building’s existing systems. This allows upgrades to be implemented with minimal disruption to its tenants, so property management can prepare their assets to meet future sustainability guidance. Demonstrating FSW’s sustainable HVAC systems Oliver Broomfield, Air Conditioning Projects Manager at FSW UK, said: “When Mark (Broady, Auston Broady Associates) commissioned FSW UK to upgrade Exchange Quay Building 8’s heating system, we recognized this project as an opportunity to demonstrate the capabilities of FSW’s sustainable HVAC systems.” He adds, “We’re immensely proud of what we’ve achieved here in Salford, and we’re looking forward to future projects which can continue to build on this success.”

Jobber, the globally renowned provider of home service software, released its latest Home Service Economic Report: Q3 2025. The edition combines Jobber’s proprietary platform data aggregated from more than 300,000 residential cleaners, landscapers, HVAC technicians, electricians, plumbers, and more, with external economic indicators to provide comprehensive insight into the trends shaping one of the fastest-growing and most essential parts of the small business economy, Home Service. Steady growth into Q4 After a slow summer start, the Home Service category regained momentum in September as inflation stabilized at 3.0% and the Federal Reserve’s late-quarter rate cut signaled a gradual easing of financial conditions. Homeowners remained budget-conscious, but recurring and maintenance work continued to sustain revenue across key trades, setting the stage for steady growth into Q4. Resilience of the Home Service “Even in an economy that’s finding its footing, the resilience of the Home Service sector continues to stand out,” said Sam Pillar, CEO and Co-Founder of Jobber. He adds, “Pros in this space are adapting faster than ever — whether it’s offering digital payments, bundling services, or maintaining strong customer relationships. These are the kinds of disciplined, modern business practices that will carry them through whatever the broader economy does next.” Key Insights from the Report Economic environment stabilizing: While consumer confidence remains soft, homeowners are prioritizing high-value, must-do projects over large-scale upgrades. Housing shows early signs of life: Existing-home sales rose 1.5%, and new-home sales jumped 21% in August, signaling a modest housing rebound. Recurring and maintenance work lead growth: After a slower August, job counts bounced back in September, driven by maintenance and pre-winter prep jobs. Digital payments milestone: For the first time, online payments have surpassed 50% of all Jobber-processed transactions, a 7% year-over-year increase. This reflects accelerating modernization across home services and positions Jobber ahead of the broader U.S. digital payments market, which grew 4% year-over-year. Segment Highlights: Green, Cleaning, Contracting, and Construction Q3 2025 followed familiar seasonal trends across the four main Home Service segments. Strong momentum from spring carried into July, followed by a brief slowdown in August, and renewed activity in September as homeowners completed outdoor projects and turned their attention to fall preparation. A closer look at the data reveals: Green: Lawn care, landscaping, and other related outdoor services saw new work rise 4% year-over-year, and median revenue climbed 11%, driven by bundled outdoor services and repeat clients preparing for fall. Cleaning: Residential and commercial cleaning, carpet cleaning, junk removal, and similar service businesses saw steady recurring work offsetting a slight 1% dip in new bookings, while median revenue rose 7% as operators expanded wallet share. Contracting: Arborists, electricians, handymen, HVAC technicians, plumbers, and other non-construction trades relied on urgent repairs and replacements to maintain a median revenue increase of 5% year-over-year during the summer, followed by a shift toward smaller maintenance jobs in September. Construction: Residential and commercial building and remodeling businesses saw signs of recovery emerge, with new work up ~2%, invoice size up 5%, and median revenue up 10%, supported by phased starts and mid-sized projects. Modern customer expectations “Digital adoption and operational discipline continue to set home service businesses apart,” said Abheek Dhawan, Senior Vice President of Strategy & Analytics at Jobber, adding “Crossing the 50% threshold for online payments is a major milestone and reflects how quickly this sector is evolving to meet modern customer expectations.”

The data center market has shown robust growth over the past five years, with significant increases in capacity and electricity usage. According to the International Energy Agency (IEA), global data center electricity consumption was approximately 460 TWh in 2022, and it is projected to rise to over 1,000 TWh by 2026. This growth is driven by the increasing demand for digital services and the expansion of artificial intelligence (AI) workloads. In 2025, the total capacity demand for data centers is expected to reach 82 gigawatts (GW), with AI workloads accounting for 44 GW and non-AI workloads for 38 GW. By 2030, this demand is projected to increase to 219 GW, with AI workloads making up 156 GW. This significant growth underscores the importance of sustainable practices in the data center industry. Alternative Off-Grid Power Sources To meet the growing energy demands, data centers are increasingly turning to alternative off-grid power sources. These include solar power, wind turbines, micro-hydro power, and biogas generators. These renewable energy sources not only reduce the carbon footprint of data centers but also enhance their resilience by providing reliable power in remote locations.  Green hydrogen, produced by electrolysis using renewable energy, also offers a sustainable alternative to traditional cooling methods, with the potential to significantly reduce greenhouse gas emissions. Continued Compute Growth and Liquid Cooling Nvidia's use of direct-to-chip liquid cooling and closed-loop systems has shown a 300x improvement The rapid growth in compute power, particularly with the introduction of platforms like Nvidia's NVL-576 600 kW, has significant implications for data center cooling.  This platform, designed for high-performance AI workloads, requires advanced cooling solutions to manage the heat generated by such dense compute environments. Nvidia's use of direct-to-chip liquid cooling and closed-loop systems has shown a 300x improvement in cooling efficiency. Google's fifth-generation cooling distribution unit (CDU), known as Project Deschutes, is another example of innovation in this space. This CDU sidecar power rack supports up to 1 MW per rack, leveraging high-voltage DC power distribution to enhance efficiency and cooling capacity. Energy-Efficient Cooling Technologies Energy-efficient cooling technologies are critical for the sustainable operation of data centers. Some of the most promising technologies include: Direct-to-Chip Liquid Cooling: This method involves applying liquid coolants directly to the processors, providing superior heat dissipation and enabling servers to operate at optimal performance levels. Hybrid Rear-Door Heat Exchangers: These systems combine air and liquid cooling to manage heat more efficiently, particularly in high-density rack environments. Heat Reuse The elevated temperatures made by liquid cooling can also be harnessed in industrial processes Liquid cooling provides an additional opportunity to reduce energy consumption while enabling data centers to become contributors to community energy systems. Unlike traditional air cooling, which disperses heat into the atmosphere, liquid cooling captures heat more effectively, allowing the heat to be repurposed for the heating needs of nearby residential or commercial buildings. Heat pumps can be employed to raise the temperature of the excess heat to the temperature required by heating systems, resulting in greater energy efficiency. The elevated temperatures produced by liquid cooling can also be harnessed in industrial processes that require specific heat levels, such as pasteurization, drying or chemical processing. By utilizing this heat, industries can reduce their reliance on external energy sources, which in turn lowers operational costs and emissions. However, most areas in the U.S. lack the infrastructure to support district heating. Significant investment is required to develop the infrastructure needed to transport and utilize the heat, such as pipelines for district heating or retrofitting industrial processes. Depending on the region, there may also be legal or regulatory barriers to overcome. Policy and Community Engagement There is strong support for AI growth, with alliances involving companies like OpenAI and Meta Within the current U.S. administration, there is strong support for AI development, with partnerships involving companies like OpenAI and Meta. OpenAI, Meta, SoftBank and Oracle have joined forces for the Stargate Project, which aims to build AI data centers in the U.S. This project includes significant investments to create infrastructure that supports AI development. The Trump administration has identified 16 sites on federal land for the development of AI data centers. These centers are intended to provide the necessary processing capacity for machine learning, cloud storage, and AI systems. Heat reuse offers a powerful tool for sustainability and community engagement. By capturing and repurposing the waste heat, data centers can significantly reduce their environmental impact while providing tangible benefits to surrounding communities and industries. This approach not only supports decarbonization efforts but also fosters stronger ties between data centers and the communities they serve, creating a more sustainable and resilient future. Benefits and integration of data centers  Data centers support local economies by creating jobs, providing reliable internet services Educating the community about the benefits of data centers is crucial to ensure the successful integration of data centers into local communities. Data centers support local economies by creating jobs, providing reliable internet services, and enabling technological advancements that improve quality of life.  By highlighting these benefits, data centers can build stronger community support and enhance their social license to operate. The effort should combine outreach with online educational initiatives, collaborations with industry, academia, NGOs and multiple sources of in-the-field insight. Conclusion The data center market is poised for continued growth, driven by advancements in technology and increasing demand for digital services. By focusing on sustainability, heat reuse, and energy-efficient cooling technologies, the industry can meet this demand while minimizing its environmental impact. Engaging with communities and educating them about the benefits of data centers will further support the sustainable growth of this vital industry.

Heating, ventilation, and air conditioning (HVAC) systems aren’t just essential to controlling temperatures and air quality inside buildings — they could contribute towards massive global savings. An ‘Efficient cooling scenario’ proposed by the International Energy Agency (IEA) suggests that doubling the energy efficiency of air conditioning could reduce investment and running costs in these systems by nearly $3 trillion by 2050. Here, Chris Johnson, Managing Director of bearing specialist SMB Bearings, explains how one way to make HVAC systems more efficient is through the better use of advanced sealed bearings. Integrity of components HVAC systems operate in harsh environments where dust, moisture, and contamination threaten the integrity of components.  Those components include bearings, which are essential in the fans, motors, and compressors used in commercial air handling units, industrial refrigeration systems, and large-scale ventilation systems. These systems are commonly found in factories, hospitals, and office buildings. Safety risks as overheating components Eventually, the motor will struggle and consume more energy to maintain its performance Take an HVAC system in a large commercial building, for example. If bearings begin to fail, then friction increases, which causes components to overheat. Over time, the excessive heat can lead to the misalignment of shafts and fans. As this misalignment worsens, vibrations can increase and place further stress on the system. Eventually, the motor will struggle and consume more energy to maintain its performance. If left unchecked, the motor can seize entirely, halting airflow and disrupting climate control. These issues not only result in higher energy costs, but can present safety risks as overheating components can lead to fire hazards or breakdowns. Reliability of HVAC systems For example, during heat waves in Ghaziabad, India, extreme temperatures have caused HVAC systems to overheat and ignite, leading to a rise in air conditioner fires. According to The Times of India, many of these fires are due to poor maintenance, overloaded circuits, and aging components. Fortunately, sealed bearings — bearings enclosed with seals or shields to prevent contamination and retain lubrication — can address some of these challenges. They not only enhance the reliability of HVAC systems, but can also reduce the frequency of maintenance interventions. This leads to an overall lower total cost of ownership (TCO). Optimising bearing procurement using TCO A common mistake when procuring bearings for HVAC systems is to focus solely on the initial cost A common mistake when procuring bearings for HVAC systems is to focus solely on the initial cost. This can be misleading, as bearings with a lower upfront price could result in higher maintenance requirements and replacement costs over time. Instead, buyers should adopt a TCO approach that considers the entire lifecycle costs of the bearing, including purchase price, installation, maintenance, and potential downtime. Let’s use the example of gearboxes and geared motors, which are integral to many HVAC systems and provide the necessary torque and speed control for various components. Bearings within these systems ensure smooth operation, reduce frictional losses, and increase the HVAC system’s overall efficiency. integrity of lubricants and protecting internal components Sealed bearings are especially suited to gearboxes, because they prevent the ingress of lubricants and contaminants that would otherwise compromise the gearbox’s performance. Sealed bearings contribute to the longevity and reliability of gearboxes and geared motors By maintaining the integrity of lubricants and protecting internal components, sealed bearings contribute to the longevity and reliability of gearboxes and geared motors, and ultimately improve the performance of the overall system. Sealed bearings also offer significant cost savings over time. Their ability to resist contamination reduces the need for frequent lubrication and maintenance, thereby extending service life and enhancing system reliability. Sealed bearings in HVAC systems Lubrication is critical for sealed bearings in HVAC systems as it minimizes friction, dissipates heat, and prevents wear. Sealed bearings can come pre-lubricated, in order to require minimal maintenance. However, in demanding environments or high-load applications, periodic relubrication may be necessary to maintain the bearing’s performance and extend its service life. Ensuring safety and compliance in explosive environments Certain HVAC applications operate in environments where explosive gases or dust are present Certain HVAC applications operate in environments where explosive gases or dust are present. In such settings, it is paramount to ensure that all components meet safety and compliance standards. Bearings used in these environments must meet stringent standards, like ATEX 2014/34/EU, a European Union regulation for the use of equipment and protective systems in potentially explosive atmospheres (ATEX) where a mixture of air, gases, vapors, mists, or dusts can ignite under certain operating conditions. There is also the international IEC System for Certification to Standards Relating to Equipment for Use in Explosive Atmospheres (IECEx). Choosing the right bearings Selecting the appropriate bearings for HVAC systems involves considering factors such as load capacity, speed, operating environment, and maintenance requirements. Sealed bearings for HVAC systems come in three main types: contact seals, non-contact seals, and metal shields. Selecting the appropriate seal type ensures HVAC system efficiency, longevity, and reliability Contact seals provide superior protection against dust, moisture, and contaminants; but they can also increase friction and reduce speed. Non-contact seals offer a balance with good contamination protection and minimal impact on speed, which makes them ideal for high-speed HVAC components. Meanwhile, metal shields prevent larger particles from entering, and are suitable for applications where speed and temperature resistance are critical. Selecting the appropriate seal type ensures HVAC system efficiency, longevity, and reliability. IEA’s Efficient cooling scenario The IEA’s ‘Efficient cooling scenario’ highlights the need for more efficient air conditioning solutions to prevent excessive electricity demand growth. It projects that doubling the energy efficiency of air conditioning by 2050 would prevent global electricity demand from growing by 1,300 gigawatts and save up to 2.9 trillion USD. High-performance components, like sealed bearings, already play a vital role in achieving these efficiency gains. By preventing contamination, minimizing maintenance and improving reliability, bearings can support the global drive for energy savings.

This year’s Clean Air Day falls on Friday the 19th June.  In its eighth year, Clean Air Day has become the UK’s largest campaign dedicated to raising awareness of air pollution and its impacts on health and the environment. It also encourages individuals and organizations to take practical steps to reduce pollution and protect public health, both inside and outside buildings. Air quality should be a concern for everyone, but certain sections of society are disproportionally impacted than others, children in particular, which is why this year on Clean Air Day we are urging policymakers, educators, and building professionals to prioritize clean air in and around our schools and homes. Children Face a Greater Risk Children are particularly susceptible to the harmful effects of air pollution Children are particularly susceptible to the harmful effects of air pollution. Unlike adults, their lungs and immune systems are still developing, and their smaller body size means they breathe in more air relative to their body weight. This increased inhalation rate, coupled with greater time spent outdoors—especially during commutes to and from school—results in elevated exposure to pollutants like nitrogen dioxide (NO₂) and particulate matter (PM). Serious health consequences for children 15,000 children under the age of five were admitted to London hospitals with breathing difficulties in 2023 The effects of breathing in polluted air can have serious consequences for children.  Clean air campaign group Mums for Lungs revealed that 15,000 children under the age of five were admitted to London hospitals with breathing difficulties in 2023. Although it’s not possible to determine how many of the admissions are directly linked to air pollution, a study by the University of Dundee found that children are significantly more likely than adults to be hospitalized due to respiratory issues caused by air pollution. Mental effects of air pollution Air pollution is not only linked to physical ailments such as asthma and bronchitis but also to decreased attentiveness and slower cognitive response times in classrooms. What's also very concerning is that the damage to children’s lungs is often irreversible. The Royal College of Paediatrics and Child Health has called for "bold but necessary policies" to protect young people and improve air quality, particularly around schools and hospitals. Unfortunately, many new schools are being built in areas that exceed World Health Organization air pollution limits. Between 2017 and 2025, 147 new schools in England—86% of all planned or constructed—will be in such zones. Surprisingly, there is no legal obligation to consider air quality in school planning, despite children spending up to 35 hours a week in these environments. Identifying the Invisible Threat Indoors However, indoor air pollution is an equally serious, yet often overlooked, issue When we talk about air pollution, the conversation often focuses on outdoor sources like vehicle emissions. However, indoor air pollution is an equally serious, yet often overlooked, issue—especially in schools and homes. Recent research from Birmingham University at a Cardiff high school found that particulate matter concentrations inside classrooms were influenced not just by outdoor pollution, but also by indoor activities, classroom location, and even flooring materials. In homes, sources of indoor pollution include cleaning chemicals, cooking emissions, and even everyday items like candles or air fresheners that release volatile organic compounds (VOCs). Without adequate ventilation, these pollutants accumulate, leading to poor indoor air quality (IAQ) that can affect children's health and ability to learn or sleep well. Schools, which typically include a variety of spaces such as classrooms, kitchens, sports halls, and even swimming pools, present their own set of ventilation challenges. Each of these environments requires specific ventilation solutions to ensure a safe and healthy atmosphere. The Role of Ventilation in Healthier Environments Effective ventilation is one of the most important tools we have in the fight against indoor air pollution. Properly specified and maintained ventilation systems can significantly improve IAQ by removing pollutants and regulating CO₂ levels. In classrooms, balanced mechanical ventilation with heat recovery—such as the Nuaire XBOXER XBC range—is ideal. These systems are capable of ventilating multiple rooms and come equipped with filters to remove incoming pollutants, offering both health and energy efficiency benefits. School ventilation challenges challenges Sports halls present different challenges, particularly with high CO₂ levels and odours Sports halls present different challenges, particularly with high CO₂ levels and odours. Packaged Air Handling Units are well-suited to these environments, offering high-volume air movement and the option of occupancy or CO₂ sensors to control the system efficiently based on use. For indoor swimming pools, where humidity and chlorine levels are high, Air Handling Units are also ideal, although will need to be corrosion-resistant. Meanwhile, in school toilets—frequent sources of unpleasant odours and bacteria—twin fan technology ensures continuous extraction, even if one fan fails. Kitchens benefit from bifurcated fans, which position the motor outside the airstream to prevent grease build-up and reduce maintenance needs. These tailored solutions demonstrate how smart ventilation can enhance IAQ across varied school settings. A Call to Action This Clean Air Day Clean Air Day is more than a date on the calendar—it’s a call to action. Road transport is a key contributor to NO₂ emissions, and efforts to promote walking, cycling, and public transport are important. However, tackling indoor air pollution is equally critical. We must recognize that protecting children from air pollution is not optional; it is a moral and public health imperative. No child should have to breathe polluted air simply to learn, play, or sleep. By investing in targeted ventilation strategies and supporting evidence-based policy, we can give every child the clean air they deserve—and build a healthier future for all.

As the skilled workforce retires, college costs rise, and demand grows for hands-on careers, there has never been a better time for apprenticeships in industries like HVAC. As more people seek alternatives to traditional four-year degrees, vocational training offers a faster, more affordable path to meaningful work, and apprenticeships can play an important role. Apprenticeships come in many different forms, but all programs strive to build knowledge and skillsets for employees. Apprenticeships provide a long-term solution to labor shortages by developing a workforce that is trained, engaged, and aligned with industry needs. Ziehl-Abegg apprenticeship program The success of the Ziehl-Abegg training program suggests options to embrace a similar approach In the HVAC market, fan manufacturer Ziehl-Abegg offers an apprenticeship program that is a structured, rotational experience designed to prepare individuals for long-term careers in ventilation and advanced manufacturing. The success of the Ziehl-Abegg apprenticeship program suggests opportunities to embrace a similar approach throughout the HVAC industry. At Ziehl-Abegg, apprentices receive hands-on training across core business functions, including engineering, operations, sales, logistics, and assembly. The immersive approach ensures they not only develop technical skills but also understand how departments work together. Benefit from apprenticeships “The program strengthens retention, builds internal expertise, and aligns with our long-term growth goals,” says Layel Burton, Ziehl-Abegg’s Apprenticeship Coordinator. “By training apprentices in-house, we cultivate a workforce deeply familiar with our products, systems, and culture — creating highly capable employees who can grow with us as we expand our North American operations.” Businesses benefit from apprenticeships by gaining talent trained to meet specific needs, while communities gain a more resilient workforce. At Ziehl-Abegg, apprenticeships have helped to bridge labor gaps and to scale with confidence. With proper investment, apprenticeships can reduce unemployment, drive innovation, and help rebalance the economy by elevating careers that are essential but often underrecognized. Front lines of HVAC performance Contractors should understand how a fan or system was designed and tested at the manufacturing level Installers and contractors are on the front lines of HVAC performance, and well-structured apprenticeships can give them the technical depth and context needed to excel. When contractors understand how a fan or system was designed and tested at the manufacturing level, they are better equipped to install and troubleshoot it correctly, Burton contends.  “Our apprenticeship program teaches the ‘why’ behind the ‘how,’ which is something the entire HVAC chain can benefit from,” says Burton. “Manufacturers, service companies, and distributors alike should invest in mentoring programs to create field professionals who are not only capable but confident and connected to the bigger picture.” Skilled roles in ventilation and advanced manufacturing The Ziehl-Abegg program exposes apprentices to every major department — from engineering and logistics to quality and production. This cross-functional experience prepares them to step into skilled roles in both ventilation and advanced manufacturing. “Apprentices graduate not only with technical skills but also a deep understanding of our business, making them agile, dependable team members who are ready to support growth in the HVAC sector,” says Burton. Apprentice programs offer a range of benefits at any level of the HVAC supply chain. Structured partnerships Structured alliances among schools, firms, and rules ensure even training and smooth workforce entry Ziehl-Abegg is a German company, and in Europe, apprenticeships are deeply embedded in the education system and viewed as a respected career path—not an alternative to college, but a parallel track. Structured partnerships among schools, businesses, and government ensure consistent training and smooth workforce entry. In the U.S., apprenticeships are gaining momentum, but still lack the widespread infrastructure and cultural normalization seen in Europe. “At Ziehl-Abegg, with roots in Germany, we have adapted that model to our North American operations,” says Burton. “The U.S. can learn from Europe’s commitment to workforce alignment by promoting apprenticeships early, building stronger industry-education pipelines, and removing the stigma from vocational training.” Proficiency, thinking, and collaboration skills How can a company find great apprentice candidates? “A good apprentice brings curiosity, reliability, and a willingness to learn,” says Burton. “At Ziehl-Abegg, we look for individuals who show interest in hands-on work, ask questions, communicate well, and have a strong work ethic.” While technical knowledge is helpful, attitude and drive matter more, he notes. “Our program helps build confidence and competence by exposing apprentices to real responsibilities and rotating them through engineering, production, and logistics.” This experience develops technical proficiency, critical thinking, and collaboration skills. Apprentices leave the program not only prepared to take on a skilled role—but also with the mindset to grow into future pioneers. Aptitude and ambition to learn Baxley was a good match for the program because he had the aptitude and ambition to learn and work Joshua Baxley, Ziehl-Abegg Technical Sales Rep, Global Key Accounts, was an apprentice before joining the team full time. “I was drawn to apprenticeships because I was uncertain of what I wanted to do with my career,” says Baxley. “The apprenticeship program with Ziehl-Abegg provided an excellent opportunity to discover what type of career and profession I wanted to pursue by providing me the opportunity to work in all the departments at the company while paying for my education.” Baxley was a good match for the program because he had the aptitude and ambition to learn and work hard each day. These attributes helped him become knowledgeable of the company and the products as well as building strong relationships with colleagues. Four years of on-the-job experience The program allowed Baxley to get his foot in the door and gave him the opportunity to gain four years of on-the-job experience by the time he graduated. “All of this gave me the confidence each day to interact with customers and become well-versed in the world of engineering and sales,” he says. “The unexpected benefit I received from the program are the relationships and connections I was able to build throughout the company and the industry.”  “The apprenticeship at Ziehl-Abegg provided me with like-minded people my age that I created close friendships with while also building relationships with the people in each department I worked in,” says Baxley. “I highly suggest anyone to join apprenticeships if they have any uncertainty on their career path or if they can find an apprenticeship that matches their career choice and interest.”

Viessmann Climate Solutions (VCS) has combined with Carrier to become the core of Carrier’s newly formed business unit Residential and Light Commercial for European, Middle East and Africa. This business unit is now able to offer brands like Carrier, Toshiba, and Beretta next to the premium brand Viessmann, thus covering additional user segments with differentiated products at various price points. Climate system technology “The climate system technology of Viessmann Climate Solutions and the cooling-focused systems of Carrier combine two core competencies that will be crucial in responding to individual customer needs worldwide,” says Thomas Heim, President, Residential & Light Commercial HVAC for Europe, Middle East, and Africa. “Carrier expands the Viessmann portfolio in the area of air conditioning and enables seamless integration of heating and cooling.” Carrier’s acquisition of Viessmann Climate Solutions There was huge media interest in Carrier’s buy of Viessmann Climate Solutions when it was revealed There was huge media interest in Carrier’s acquisition of Viessmann Climate Solutions when it was announced more than a year ago. In media interviews, Carrier Chairman & CEO David Gitlin; Max Viessmann, CEO and Member of the Executive Board of the Viessmann Group, which owned Viessmann Climate Solutions prior to Carrier’s acquisition; and Heim presented the many advantages the combination would bring. Advantages apply both to the product portfolios, which perfectly complement each other, and to the optimized development of global markets. A year later, the feedback is extremely positive, says Heim. Latest developments in the Viessmann system The sentiment was confirmed by numerous conversations with installers at the ISH 2025 trade fair in March in Frankfurt. “The advantages of this combination between Viessmann Climate Solutions and Carrier are clearly noticeable for everyone involved,” says Heim.   The latest developments were well received by the 100,000 visitors to the booth at ISH, with particular interest in the Viessmann system connecting several products into a solution based on full stack controls platform Viessmann One. Residential and commercial sector customers The alliance meets the needs of residential and commercial sector clients with a multi-brand portfolio Also at ISH, Viessman highlighted the newly created alliance of Viessmann, Carrier, Riello, and Beretta around the theme “Power Play as One Team.” The alliance meets the needs of both residential and commercial sector customers with a multi-brand portfolio of heating, ventilation and cooling solutions for all output ranges and price levels. “Together with Carrier, we are in an even better position to provide solutions that address climate challenges by reducing CO₂ emissions and increasing energy efficiency,” says Heim. Digital tools and ecosystems The expanded product line builds on the strong longstanding collaboration of Viessmann Climate solutions with installation partners. For example, the addition of (light) commercial Carrier heat pumps to the portfolio enables leveraging together existing digital tools and ecosystems with this expanded offering. “This increases the relevance of our ecosystems for both our installers and users,” says Heim. Culture of collaboration The focus from the start has been on creating a culture of collaboration among both teams When integrating companies, it is always about bringing people together and providing a framework that allows them to unlock their full potential, says Heim. Thus, the focus from the beginning has been on creating a culture of collaboration that allows the teams from both companies to contribute their unique talents and strengths. “We are convinced that we have found the right formula and that combining Carrier and Viessmann Climate Solutions will lead to 1 + 1 > 4,” he says. “To get there, our shared purpose and values play an important role in this successful integration.” Carrier product portfolios “Companies can only be successful if they think and act globally and operate in a spirit of co-creation,” says Heim. Combining the Viessmann Climate Solutions and Carrier product portfolios creates added value for all installation partners and users. The increasing complexity of the HVAC industry is contributing to a trend toward company consolidation. “Let's be honest: in the past, you simply installed a gas boiler,” says Heim. PV installation They also offer a design tool on the Internet and even financing with the help of a partner bank Heim added: “Today, it's often about heat pumps, battery storage, photovoltaics, wall boxes and an energy management system that links everything together. It's all extremely complex. That's why we are constantly training our installers and at the same time reducing their workload." "Many of our installers don't want to climb on a roof, which is fine. We then look for facilitating a service provider that adds the PV installation to the holistic offering of our partner company.” They also offer a configuration tool on the Internet and even financing with the help of a partner bank. Climate-neutral by 2050 Data centers will also play a bigger role in the future. For example, a typical office building in Manhattan requires only three cooling units, while a data center they are currently working on requires 140. An AI chip generates seven times more heat than a conventional chip. “This market is huge, and we are determined to play an important role,” says Heim. The building sector produces 40 percent of CO2 emissions in Europe. Therefore, a transformation to renewable energies is necessary to become climate-neutral by 2050. Viessmann products and systems “For us, as a manufacturer, this means that we continue to encourage the building electrification system strongly,” says Heim. Viessmann products and systems offer installers the basis for a sustainable climate solution offering for their users. Almost all areas, from single- and multi-family houses to commercial and industrial buildings and municipal facilities, can be covered by the system portfolio. New hydraulic interface Regardless of the outdoor unit (ODU), the new components always match the indoor unit (IDU) Heim highlights three notable products as part of the Viessmann System Solution. Users can now choose between the high-efficiency, high-comfort Vitocal 250-A and the more economical Vitocal 150-A domestic air source heat pumps. Regardless of the outdoor unit (ODU), the new components always match the indoor unit (IDU). This high level of flexibility pays off for the installers in significantly shorter installation times, and users only pay for what they actually need for their heating system. The new hydraulic interface also saves time during installation. Vitocharge VX3 storage unit The Vitocharge VX3 storage unit is one of the most proven battery storage units in its class. Its maximum storage capacity of 75 kWh (5 modules of 15 kWh each) is particularly suitable for large, detached houses and apartment blocks, as well as for smaller commercial applications such as supermarkets or craft businesses. Following on from the large power classes, the smaller modules can now also be cascaded at 4.6 kVA. Flexible installation options are now available, including corner or horizontal mounting, which allow for optimal adaptation to on-site conditions.

Data centers play a pivotal role in supporting the flow of information across our digital economy. However, the transmission of large amounts of data also requires a lot of energy. Viewing data centers as potential heat sources offers an opportunity to use this otherwise wasted heat to warm nearby homes and businesses using technologies like heat pumps and heat networks. The approach will lower the environmental impact of these buildings filled with computer servers, and it will support the transition to renewable heating as we look toward net zero. Heat recovery systems Heat recovery systems are designed to facilitate the re-use of heat energy via technologies like heat pumps Heat recovery systems are designed to facilitate the re-use of heat energy via technologies like heat pumps and heat networks, says Simon Prichard, EMEA ITC Business Leader, Mitsubishi Electric, within the Living Environmental Systems division. The heat generated by data centers, usually around 30-35°C (85-90°F), is increased by heat pumps to 70-80°C (160-175°F), making it suitable for heating nearby buildings or supplying hot water. “However, when choosing which heat recovery approach to go for, it's important to take into account the data center’s size, location, and proximity to the desired reuse location,” says Simon Prichard, adding “These factors determine the most efficient method for heat recovery and distribution.” Reusing heat from data centers via heat pumps “Reusing heat from data centers through heat pumps and heat networks drives down costs by reducing the amount of heat going to waste and ultimately increasing energy efficiency,” continues Simon Prichard. However, Simon Prichard emphasizes these cost benefits must be communicated and outlined clearly to ensure stakeholders are aware. More awareness will, in turn, drive adoption forward. Wider awareness and adoption Wider awareness and adoption are already happening with plans for utilizing waste heat within London's district heating networks, notes Prichard. The scheme uses ejected heat from a data center to power heating demand for nearby homes A real-life example is Amazon’s Tallaght data center in Dublin, which is the country's first low carbon district heating network. The scheme uses ejected heat from a data center to power heating demand for nearby homes, and peak requests in winter are satisfied by dedicated heat pumps and a heat pump module. The network is estimated to reduce pollutant emissions in the South Dublin County region by nearly 1,500 tons per year. Mitsubishi Electric’s CPD-Certified Guide Mitsubishi Electric’s newly released CPD-Certified Guide aims to educate data center owners, managers and policymakers on the role heat reuse can play in decarbonizing these buildings. “It provides insight into how we can reduce the carbon footprint of these spaces by viewing them as a source of heat energy, as well as the solutions available and what needs to be considered before making the switch,” says Simon Prichard, adding “In doing so, it aims to support owners and managers in transitioning to heat recovery in their building and reducing the environmental impact of these spaces to support the United Kingdom’s wider journey towards net zero.” Communicating the benefits of heat reuse in data centers “Communicating the benefits of heat reuse in data centers can promote greater cooperation from stakeholders – whether that's owners and managers, governments, or manufacturers,” says Simon Prichard. Raising awareness of the environmental impact of data centers and the role heat recovery can play in reducing that impact can position data centers as part of the solution for a decarbonized future. Developing heat networks “Continuing to develop heat networks at the same scale as other European countries will also help make reusing this energy to heat surrounding buildings a reality and put what we see across other countries into practice in the UK,” states Simon Prichard.

Healthcare facilities require a substantial amount of energy to operate. In fact, the average hospital consumes approximately 250% more energy than a comparably sized commercial building, according to the U.S. Department of Energy. As hospitals face increasing financial pressure to boost revenue while cutting costs, many are turning to energy-reduction initiatives as a strategic remedy. At the heart of those efforts is often the HVAC system, which accounts for roughly one-sixth of a hospital’s total energy consumption. Broader energy initiative The broader energy initiative successfully delivered both energy savings and operational improvements That was the case at Baptist Health Medical Center – Little Rock, Arkansas's largest private, not-for-profit hospital. The century-old facility initially sought to replace its aging wooden cooling tower, which supported the hospital’s HVAC system. However, the project soon evolved into something much more ambitious: a comprehensive mechanical system overhaul designed to significantly reduce energy consumption. While the broader energy initiative successfully delivered both energy savings and operational improvements, it was the new cooling towers — ironically, the original catalyst for the project — that emerged as a surprisingly large contributor to the hospital’s ongoing power savings. Operating with efficiency  “Originally, the owners wanted to go with an engineered plastic cooling tower because they liked the fact that it was corrosion-proof, required far less upkeep, and came with a 20-year warranty,” says David Buie, an Account Manager in Controls Sales at Powers, who helped kick off the project. Based in North Little Rock, Arkansas, Powers is an HVAC, controls, and service company that partnered with the hospital to upgrade its cooling towers. However, as the project progressed, hospital leadership decided to broaden its scope to include a comprehensive review and optimization of the entire mechanical system. Bidding for the new cooling towers The final decision came down to two material options: HDPE engineered plastic and stainless steel To guide the expanded initiative, the hospital brought in an independent energy-efficiency engineering firm, which required competitive bidding for the new cooling towers. The final decision came down to two material options: high-density polyethylene (HDPE) engineered plastic and stainless steel. “Once the engineering company saw the energy that could be saved by utilizing the HDPE towers, there was really no looking back,” adds David Buie. A healthier bottom line Engineered plastic cooling towers were first pioneered by Delta Cooling Towers in the 1970s, and many of those original units remain in operation now. The energy savings delivered by these towers can be attributed to three key features: a modular design, multiple highly efficient motors and fans, and the use of variable-frequency drives (VFDs). “Because of the way Delta’s towers are essentially separate cells that work together, the hospital can stage them down when they’re not all needed,” explains Jared Hendrickson, Controls & Equipment Lead at Powers, adding “This can amount to huge savings on energy.” Precise load management Each cell contains two fans, all powered by VFDs that automatically reduce motor output Baptist Health Medical Center selected Delta’s TM Series, which consisted of 20 individual cells providing a total cooling capacity of 7,000 tons.  The modular design allows for precise load management, and each unit is equipped with smaller 60-inch fans, which significantly reduce energy consumption. Each cell contains two fans, all powered by VFDs that automatically reduce motor output when full fan speed isn’t required. Capabilities of the HDPE cooling towers “When you operate the fan motors at 80% speed or less, you're saving about 50% on power,” said Jared Hendrickson, adding “So, when you're talking about that much savings spread across 40 motors, the energy reduction is extensive.” In addition to the superior turndown capabilities of the HDPE cooling towers, these units also feature much smaller motors – 15 horsepower (hp) compared to 150 hp in the stainless-steel alternative – further contributing to long-term savings. Saving energy and improving operations  In addition to reducing energy consumption, Baptist Health Medical Center has also significantly lowered maintenance costs. One key reason is the construction of the HDPE cooling towers, which feature a one-piece molded casing. The design eliminates joints and seams — common failure points in traditional towers that often lead to leaks The design eliminates joints and seams — common failure points in traditional towers that often lead to leaks and ongoing repair needs. The towers are also equipped with direct-drive fans, eliminating the need for gearboxes that require frequent maintenance and routine oil checks. Additionally, while all cooling tower systems require chemical treatments to control algae, pathogens, and sediment buildup – all of which can hinder performance – the HDPE towers are immune to the corrosive effects of these chemicals. Another advantage for contractors “The chemical treatment is going to eat away at a metal tower, even a stainless tower, over time,” notes Jared Hendrickson. Installation time offers another advantage for contractors. HDPE systems can often be installed in just a day or two, compared to the multiple days, or even weeks, required for towers made from other materials. “There are only two pieces held together by eight bolts,” explains Jared Hendrickson, adding “Compare that to a thousand bolts and a thousand metal components on other towers. There's also no gasketing and caulking of panels before assembly. It’s a very simple installation process.” A clean bill of (energy) health  Energy-efficiency measures don’t just reduce consumption, they can improve overall operations through optimized HVAC performance and smarter energy management. At Baptist Health Medical Center, the new cooling towers, installed at ground level, have also contributed to a quieter, more controlled medical environment. Hospitals face unique challenges when it comes to energy use. Compliance with regulations like ASHRAE Standard 170 – which governs temperature, humidity, and air exchange rates – places constant pressure on facility executives, energy managers, and engineers to find sustainable, high-performance solutions.  Through careful selection of its cooling tower system and strategic mechanical upgrades, Baptist Health’s flagship facility achieved measurable, long-term power savings without compromising compliance or patient care.

As part of its commitment to champion healthy indoor environments, Carrier has teamed up with the American Lung Association to support indoor air quality (IAQ) research in schools through the development of a case study on IAQ and its impact on student well-being. The American Lung Association is a national non-profit committed to improving respiratory health through education and research. Unhealthy air conditions The study highlights the correlation between IAQ, student health and academic performance The Data-Driven Indoor Air Quality in Schools Study was conducted at Lakes International Language Academy (LILA), an International Baccalaureate World School serving pre-K through 12th-grade students in Forest Lake, Minnesota. The study highlights the correlation between IAQ, student health, and academic performance. According to the American Lung Association, unhealthy air conditions have been proven to increase airborne illnesses, initiate frequent asthma attacks and hinder academic success. Indoor air quality "Carrier is proud to collaborate with the American Lung Association to help schools create healthier, more productive learning environments," said Gaurang Pandya, President, Climate Solutions America, Carrier. He adds, "With individuals spending over 90% of their time indoors, indoor air quality isn’t just important — it’s essential. Carrier offers a full suite of solutions schools need to improve air quality, support student well-being, and build trust with families and communities." Carrier donated products and services Carrier donated products and services, including 137 air quality sensors, 70 cellular hubs In addition to supporting the IAQ research, Carrier donated products and services, including 137 air quality sensors, 70 cellular hubs, sensor installation, and an HVAC assessment.  The school also received one year of access to Carrier Abound, an open digital platform that connects with equipment or hardware and provides real-time metrics to help determine whether a building is healthy and sustainable. Carrier’s innovative solutions With assistance from Carrier’s innovative solutions, researchers were able to identify several actionable interventions that may help improve the school’s IAQ.  By prioritizing regular HVAC maintenance, monitoring systems and adjusting HVAC schedules during peak hours, administrators can make informed, timely decisions to support student health. Findings from this research equip schools, such as LILA, with the tools to create IAQ Management Plans to sustain high air quality standards.

With a reputation for uncompromising integrity, HDG Legacy is an experienced voice in the hospitality industry for those looking to build, own, and operate hotels. As both a respected developer and preferred management company, the Legacy team employs its core values of teamwork, communication, innovation, leadership and resourcefulness, and has an established reputation for positively impacting the hospitality sector. Currently, Legacy manages and maintains nine hotels that it owns, with its tenth opening July 2025. Rising energy and water costs  A commitment to improving and innovating hotels means that Legacy is alive to the economic challenges facing hoteliers, not least in operational challenges because of rising energy and water costs. With profit margins often razor-thin, even small innovations can mean the difference between profit and loss, so it was no surprise that Legacy looked to Anacove’s unique AI- and Cloud-powered Smart Thermostats, Leak Detection and Asset Management systems to help give its hotel clients the edge in their energy and water management. Anacove’s Smart Thermostats  “One of my core beliefs is that operating a business that respects the environment in terms of how resources are utilized is important just because that's the right thing to do – but there's also an economic benefit,” explained Navroz F. Saju, Founder and Principal at HDG Legacy. “We initially tested Anacove’s Smart Thermostats across our express properties, before piloting them in one of our larger hotels, and we were so impressed with the results (we actually have the data showing the savings for 2024-25 thus far – very impressive!) that we are looking to roll out the solutions across our other properties.” Electricity consumption reduced He continued, “We started using Anacove Smart Thermostats in July 2024 at the Holiday Inn Express Crystal River, and based on historical data and usage, electricity costs on our utility bills are 35.94% lower per occupied room.” “The Holiday Inn Express & Suites Silver Springs-Ocala’s electricity costs were 33% less than what we’d budgeted for per room, with the Holiday Inn Express & Suites Inverness-Lecanto coming in at 43% lower than budgeted in electricity usage.” Features of Smart Thermostats  Anacove’s Smart Thermostats are innovative IoT devices with advanced sensors Anacove’s Smart Thermostats are innovative IoT devices with advanced sensors that monitor temperature, humidity, air quality, barometric pressure, current weather conditions, daylight conditions and guest presence. They seamlessly integrate with HVAC systems through existing hotel WiFi infrastructure, allowing for centralized control throughout the hotel. This enables continuous optimization of each room, regardless of occupancy status, leading to immediate and sustained cost savings. Unlike other occupancy-sensing thermostats, Anacove Smart Thermostats remain active even when guests are asleep or have left their pet in the room. Optimizing HVAC Cycles  Learning from each room’s thermal behavior – heating and cooling coefficients – the thermostats optimize HVAC cycles, resulting in reduced peak energy consumption, and maintenance of guest comfort with less energy usage. “I have been very pleased with the transition to Anacove Smart Thermostats, and we will continue to replace older, less efficient thermostat technology with Anacove thermostats,” added Saju. “They are easier to operate – for staff and guests – and install than others on the market – irrespective of their superior energy-saving performance – and are incredibly responsive.” Anacove’s staff and support Such was their ease of use that Legacy’s skilled maintenance staff installed the Anacove Smart Thermostats themselves, but Saju is keen to point out how engaging Anacove was throughout the process. “Their support has been excellent. Even though the thermostats are easy to install and operate, if there is ever a question that needs answering the Anacove team is there to back us up very quickly and in a very expert way,” he said. “I've been very comfortable with their price point – I actually think that their thermostat pricing is the most competitive I have found – and with their after sales service and the technology’s ease of use they are very customer-centric indeed.” Anacove’s AI-enabled water management systems  In addition to rolling out Anacove’s Smart Thermostats incrementally across his hotels, Saju is also deploying the company’s AI-powered, cloud-maintained Toilet Leak Detectors and Asset Tracking Systems. The AI-enabled water management systems go beyond basic leak detection. While sensors installed in water tanks or behind walls detect even the tiniest leaks, it’s the AI that identifies anomalies, pinpoints problem areas, and alerts maintenance teams before the issue escalates – saving water, money, repair costs, and mitigating guest inconvenience. Anacove’s Asset Management System  Anacove’s Asset Management System equips hotel assets such as luggage carts, rollaway beds, cribs, housekeeping trollies and other movable items with location tags, which, thanks to the cloud-maintained AI system, helps to track down missing items, triangulating their exact positions, streamlining retrieval, reducing loss, and improving overall resource management. “We all expect a lot from our hotel’s front desk,” said Saju. “They’ve got to check people in, the phone's ringing, someone wants a bandage and then suddenly someone will check in and say, ‘where's the luggage cart?’” “The fact that they're immediately able to log in to the Anacove cloud dashboard on their phone and see exactly where the cart is – usually in a guest’s room – is an incredible time-saving benefit, enabling them to locate the cart’s exact location so that they can repurpose the cart for another guest’s use. In the past they would have to ring around guests’ rooms to find it – a waste of time and valuable resources.” Anacove AI cloud brain The performance of all four Anacove technology services (thermostats, toilet leaks, staff and asset trackers) are monitored and analyzed by the company’s AI cloud system, effectively a brain hovering over key operational areas of the hotel that make intelligent decisions. This ‘Anacove AI cloud brain’ – the only system of its kind – looks at the whole hotel as a single living entity, autogenerating reports that allow hoteliers to clearly see the return on their investment. The AI-enabled, cloud-connected energy management solution uses one inclusive dashboard, with a data-rich, monthly ‘flash report’ that provides a summary of how much energy has been saved, what's going on in terms of potential toilet leakage, etc. Easy and energy efficient  Overall, Saju is delighted with not only Anacove’s innovative, unique, AI-powered, cloud-connected devices, which are exceeding Anacove’s own expectations, but also by the company’s service and support. “They advertised a saving of about $12.00 per-room per month for the Smart Thermostats, which was pretty significant, but we're beating those numbers,” he explained. “Overall, all their technology is easy to install and use. There are huge savings, and – importantly – our general managers are very happy!” “Anacove’s after-sales service has also been second to none, and they have been incredibly receptive in helping us adapt the systems to our own requirements. I am a huge fan of Anacove and the team there; they're good people and I'm so glad that we're able to work together.”

PSR Mechanical, a pioneering commercial HVAC service provider in Seattle, has partnered with ECM Technologies, a national pioneer in HVAC operational efficiency and energy conservation, to bring ThermaClear® to the local market. This groundbreaking HVAC treatment significantly improves system performance and extends equipment life. The first Seattle treatment took place at The Museum of Flight, the world’s largest independent, nonprofit air and space museum, housing more than 150 aircraft and spacecraft on its 23-acre campus.  optimizing system performance The programs deliver immersive, user-driven affairs around the subjects of aviation and robotics The Museum plays a vital role in community aerospace education, offering immersive STEM programming for K-12 educators and students. The programs deliver immersive, user-driven experiences around the subjects of aviation, space and robotics. By reducing energy use, optimizing system performance and lowering operating costs, ThermaClear frees capital for new exhibits and programs, safeguards delicate artifacts with reduced equipment downtime and delivers greater year-round comfort for the Museum’s guests and staff.  Several HVAC units The initial treatment was completed on several HVAC units within the Museum’s Aviation Pavilion, and PSR Mechanical is scheduled to treat an additional 282 tons throughout the rest of the campus within the coming months. Among the treated units is the system that cools the historic first jet Air Force One, used by Presidents Eisenhower, Kennedy, Johnson, and Nixon.   Declining HVAC performance ThermaClear is a one-time therapy that eliminates internal oil fouling, a joint but often overlooked ThermaClear is a one-time treatment that eliminates internal oil fouling, a common but often overlooked cause of declining HVAC performance. The treatment works by displacing oil buildup on heat exchanger coils, restoring maximum energy efficiency and allowing optimal heat transfer. It also super-lubricates compressors, reducing wear and tear and lowering the risk of failures. By forming a permanent protective barrier inside the system, ThermaClear prevents future oil fouling and the efficiency losses that come with it. This leads to fewer repairs, reduced operating costs and greater reliability with less system downtime.   ThermaClear Preferred Service Network The introduction of ThermaClear in Seattle follows a national partnership between ECM Technologies and Service Logic, the largest privately held commercial HVAC service provider in the United States. As a Service Logic company, PSR Mechanical is now one of a limited number of North American providers in the ThermaClear Preferred Service Network. This exclusive designation allows PSR to offer ThermaClear as part of its ongoing commitment to building performance and reliability.  Range of preventive maintenance programs “Adding ThermaClear to our service and project offerings allows us to combine our deep expertise in preventive and predictive HVAC maintenance with a cutting-edge technology that restores lost efficiency and protects systems long term,” said Greg Hagen, vice president of PSR Mechanical.  PSR Mechanical currently offers a full range of preventive maintenance programs designed to keep HVAC systems running efficiently and reliably. Over time, neglected maintenance issues can contribute to energy loss and premature equipment wear. With the addition of ThermaClear, PSR can help clients restore HVAC systems to peak performance and maintain long-term efficiency. 

Mitsubishi Electric Trane HVAC US LLC (METUS), a pioneering supplier of all-electric, all-climate Ductless and Ducted Mini-split and Variable Refrigerant Flow (VRF) heat-pump and air-conditioning systems, shared a customer success story on Weber State University, an energy-conscious school that uses all-climate heat pumps throughout its campus buildings. VRF solution from Mitsubishi Electric Weber is also using a ductless, water-source VRF solution from Mitsubishi Electric The Ogden, Utah-based university has installed a ductless, water-source Mitsubishi Electric Hybrid VRF™ heat pump system in the SkySuites, a building that houses the Weber State Athletics Department, coaching staff offices, press box, 26 suites, 150 club seats, and a study area for student-athletes. Weber is also using a ductless, water-source VRF solution from Mitsubishi Electric in the Noorda Engineering building. These solutions allow Weber State University to further its goal of reaching carbon neutrality by 2040. Conventional HVAC systems “Replacing our conventional HVAC systems has improved the comfort of students, faculty, and other staff, and it has significantly reduced our energy costs,” said Justin Owen, Interim Director of Operations for Weber State University. “We’re now exclusively installing Mitsubishi Electric all-climate heat pump solutions across campus because of their performance, functionality, easy-to-use thermostats, and warranties.” Key advantage of VRF and Hybrid VRF technology Weber State also cites zoning as a key advantage of VRF and Hybrid VRF technology Weber State also cites zoning as a key advantage of VRF and Hybrid VRF technology. Zoning provides more personalized comfort and improves efficiency. Each space has its own thermostat, allowing occupants to heat or cool their space to their comfort level. The Hybrid VRF system also pairs well with a variety of indoor unit options, including ceiling cassettes and wall-mounted units, to match the school’s different needs. Key technology in modernizing buildings Weber State University’s buildings have historically been cooled with chilled water from a central water plant and heated with steam from a central steam plant, both of which are energy-inefficient compared to modern systems. Plans are underway to convert the entire campus to Mitsubishi Electric Hybrid VRF solutions, which use water instead of refrigerant indoors and are a key technology in modernizing buildings. Approximately half of the HVAC systems on campus are fully electric now. Climate heat pump technology Approximately half of the HVAC systems on campus are fully electric now “Weber State University’s use of next-generation, all-climate heat pump technology make it a prime example for other universities looking to take steps toward future-proofing their buildings,” said David Archer, Vice President of Commercial Business at Mitsubishi Electric Trane HVAC US LLC. “Not only are Mitsubishi Electric VRF and Hybrid VRF systems energy-efficient, but they also allow university facility operators to customize and enhance comfort for faculty, staff, students, and visitors campuswide.” Water-source VRF solutions In addition to using all-climate heat pump technology to heat and cool its buildings, Weber State is also educating younger generations about these HVAC systems. Most parts of the Noorda Engineering building’s ductless, water-source VRF solutions are on display to students, with parts labeled and exposed. This setup empowers faculty to use the HVAC system as a teaching tool for students in its electrical engineering, mechanical engineering, and energy engineering programs.

Northwell Health, New York’s largest healthcare provider and private employer, has been at the forefront of sustainability efforts and energy efficiency for years. With 23 hospitals, more than 16,600 credentialed physicians, 18,900 nurses and 5,000 volunteers, Northwell Health serves as a vital resource to New York City, Long Island, Westchester and other communities across the state.  In 2018, Northwell launched an Energy Steering Committee to oversee energy use and implement initiatives to reduce its carbon footprint. One such initiative, a partnership with American Plant Maintenance (APM Steam), focuses on steam system maintenance, aiming to optimize efficiency and reduce energy consumption, while maintaining high-quality patient care. The Challenge Many of Northwell Health’s facilities rely on complex steam systems for heating, sterilization Many of Northwell Health’s facilities rely on complex steam systems for heating, sterilization and other critical operations. Maintaining these systems is essential to attain operational efficiency and patient safety. Yet, steam traps — essential components that remove condensate without losing steam — are prone to failure over time. A single leaking or plugged trap can cause substantial energy loss and increase carbon emissions, while driving up operational costs. With hundreds of steam traps across multiple hospitals, identifying and addressing failures required a proactive and scalable solution by the hospital team. The Solution In 2019, Northwell Health partnered with APM Steam, Woburn, Mass., to implement an annual steam system maintenance program. This program involves surveying steam traps across the hospital network, identifying issues and performing necessary repairs. APM Steam manages the utility incentive process, ensuring that Northwell receives available rebates APM Steam’s comprehensive approach includes inspecting steam traps, replacing or repairing faulty components, installing insulation to reduce heat loss, and descaling heat exchangers to attain optimal performance. Importantly, APM Steam manages the utility incentive process, ensuring that Northwell receives available rebates while providing detailed data to guide maintenance decisions and prioritize high-impact improvements. Reducing CO2 emissions Haneef Khan, a member of Northwell Health’s Energy Steering Committee, explains the value of this approach: "The energy and cost savings were staggering. Combine that with incentive funding for energy reduction by National Grid and ConEd, we can achieve payback in well under 12 months by proactively maintaining steam traps, system insulation and heat exchangers across our hospital portfolio." He adds, "We’re reducing our impact on the planet by reducing our CO2 emissions. The dollars we save in energy can be used to improve the quality of services we offer the communities we serve." Results The partnership has delivered substantial results for Northwell Health. Since January 1, 2022, APM Steam has surveyed 9,817 steam traps across the hospital network, resulting in remarkable savings: $2,403,672 in gas and electric savings 946,500 Natural Gas Therms saved $1,162,551 in utility incentives secured These efforts have yielded an overall return on investment (ROI) in just 1.4 years. The reduction in natural gas consumption not only translates to cost savings but significantly reduces Northwell Health’s carbon footprint. These results support the hospital network’s broader sustainability goals, while improving operational efficiency and freeing up budget for other critical improvements. Ongoing support from APM Steam Northwell Health has prioritized energy efficiency by participating in incentive programs Over the years, Northwell Health has prioritized energy efficiency by participating in incentive programs offered by National Grid and ConEdison.  These incentives have been instrumental in offsetting project costs and accelerating payback periods. With ongoing support from APM Steam, Northwell ensures that its steam systems operate safely and efficiently — minimizing waste, maximizing savings, and maintaining reliability across its hospitals. Conclusion The success of Northwell Health’s steam system maintenance program underscores the importance of proactive, data-driven maintenance in reducing energy consumption and operational costs. By partnering with APM Steam, the hospital network has demonstrated that regular maintenance and strategic use of utility incentives can drive significant financial and environmental benefits. Moving forward, Northwell Health remains committed to expanding these efforts across its portfolio of hospitals, ensuring that energy savings can be reinvested to improve patient care, enhance infrastructure and better serve the communities that depend on them.

Because we spend about 90% of our time indoors, Indoor Air Quality (IAQ) is critical. Poor IAQ, including pollutants such as mold and chemicals, directly impacts health, causing respiratory issues, headaches, and fatigue. Good IAQ enhances comfort, productivity, and overall well-being. We asked our Expert Panel Roundtable: How can HVAC systems ensure better indoor air quality (IAQ)?

The HVAC industry impacts virtually every aspect of modern life, from our comfort and health to economic productivity and environmental sustainability. However, the HVAC industry is not without its challenges, whether related to people, equipment, regulations, or the economy. We asked our Expert Panel Roundtable: What is the biggest challenge currently facing the HVAC industry?

Installing HVAC equipment is not as simple as plugging in an appliance. Installers often face many hurdles, including complex system design, space constraints, accurate sizing and load calculation, and proper ductwork installation. But what are we forgetting? We asked our Expert Panel Roundtable: What is the most overlooked factor when installing HVAC systems?