EPA

Navien is introducing the PEM750 heat pump to the UK market, offering a high-performance, eco-friendly heating solution designed for quick, easy installation - saving installers time while reducing complexity on-site. As the UK moves towards its net-zero targets, demand for simply smarter, more efficient and future-proof heating solutions continues to grow. Eco Heating Excellence The PEM750 has been engineered to meet these requirements, delivering heating and hot water solutions more sustainably without compromising on performance. With increasing regulatory pressure to reduce carbon emissions and phase out traditional heating systems, Navien’s PEM750 has been designed for seamless integration into any environment, whether new build or retrofit. Smart Heat Solutions Sean Keleher, Technical Director at Navien UK said: "We recognize the challenges faced by industry professionals when adapting to low-carbon heating. With the introduction of the PEM750, we are delivering an innovative high-performance heat pump that is simple to install, highly efficient and fully supported by training and Navien’s expertise.” He adds, “Our goal is to make the transition to renewable heating as seamless as possible for installers and their customers, and this latest innovation joins our existing range of products designed with hot water delivery and comfort in mind.” High-Performance Heating The PEM750 offers homeowners a reliable and sustainable heating solution, helping to reduce energy costs over time Using R290 refrigerant with a global warming potential of just three – significantly lower than R32 – the PEM750 offers homeowners a reliable and sustainable heating solution, helping to reduce energy costs over time. Suitable for both new builds and retrofit installations, the PEM750 can supply up to a maximum temperature of 75°C and operates even in environments as low as -20°C. With an ERP rating of A and a Seasonal. Effortless Management Coefficient of Performance (SCOP) of up to 4.87 under optimal conditions, the heat pump ensures superior performance while helping to increase energy savings for the homeowner. The PEM750 puts control at fingertips. Navien’s innovative digital touch screen controller and smart app can provide effortless management, allowing users to monitor power usage, adjust settings and access fault codes with ease. Additionally, the PEM750 has a low noise level of 42 dB – which is quieter than a gas-powered boiler –ensuring minimal disruption for homeowners and residents. Next-Gen Heating This introduction of the PEM750 reinforces Navien’s commitment to providing high-quality, sustainable heating solutions that align with the UK’s decarbonization goals. Navien is committed to supporting installers at every stage of their heat pump journey. Navien will soon be launching dedicated heat pump training courses and providing ongoing support to ensure smooth installation and maintenance of the all-new heat pump. High-quality, sustainable heating solutions This introduction of the PEM750 reinforces Navien’s commitment to providing high-quality, sustainable heating solutions that align with the UK’s decarbonization goals. By combining cutting-edge technology with expert training and ongoing support, Navien is helping installers and homeowners take the next step to a more sustainable future.

A newly built, state-of-the-art, multi-purpose facility on the edge of Carsington Water in Derbyshire has bagged a coveted award for its heating and cooling system. Waters View, which is due to fully open to the public later this year, has been named as Ground Source Project of the Year at the National ACR & Heat Pump Awards 2025.  Sustainable comfort The installation features three 45 kW 350-G Vitocal ground source heat pumps The installation features three 45 kW 350-G Vitocal ground source heat pumps from Viessman Climate Solutions UK. Viessmann Climate Solutions is a part of Carrier Global Corporation, global pioneer in intelligent climate and energy solutions. Built by renowned family-run Derbyshire business, C W Sellors Fine Jewellery, the 2099 m2 multi-purpose facility has been designed to be in tune with the natural splendour of its beautiful rural location and with high-efficiency, low-environmental impact technologies throughout. This includes its energy systems, which were carefully considered from the beginning of the architectural process.   Efficient, sustainable and invisible Three 45 kW 350-G Viessmann Vitocal ground source heat pumps extract natural underground heat via 21 100m-deep bore holes to provide year-round heating and cooling without the need for any gas connection or backups.  They also ensure ample hot water for the centre’s toilets and café and meet most of its power needs, with the remainder supplied by solar panels. CW Sellors Fine Jewellery reports that Waters View has a largely self-sufficient energy ecosystem. With underfloor heating and cooling throughout and no outdoor units above ground, all piping and equipment is concealed from view, allowing the building’s interior and exterior to look sleek, spacious and beautiful.  Eco-friendly heat management The Vitocal 350-G heat pumps were chosen because of their A++ energy and capability to provide cooling as well as warmth Construction materials, including locally sourced limestone, were specially selected to provide a natural heat sink, minimising swings in internal temperature. This, and the introduction of natural ventilation via a large atrium, were designed to create year-round comfort for visitors and staff at the centre.  The Vitocal 350-G heat pumps were chosen because of their A++ energy efficiency and capability to provide cooling as well as warmth, which is unusual for ground source heat pumps in the UK. The heat pumps come with the assurance of Viessmann’s Climate Protect Label (VC 350-G: Climate Protect +++) which means they use R290 (propane) refrigerant with very low total equivalent warming impact (TEWI). Legacy The inspiration to build Waters View came from Derbyshire entrepreneur and CW Sellors founder, Chris Sellors. His vision was to create a national jewellery design, manufacturing, retail and education facility to inspire and showcase UK jewellery design talent within an environmentally friendly building of exceptional architectural merit in a stunning location. Sadly, Chris died in September 2023, aged 67, before seeing the project through to completion. Engineering expertise David Orsler, Director of Futureserv, the building services consultancy which engineered the building’s prize-winning heating system, said, “We’re delighted that this outstanding project has been recognised with an award. It’s a testament to Chris, who was particularly keen on designing buildings well. He also wanted to use ground source heat pumps because they’re so efficient.” “We designed everything around the Viessmann heat pumps because we needed technology that’s proven to work well, offering heating and cooling in one unit. I’ve been to Viessmann’s factory in Germany multiple times and seen first-hand how much research and expertise goes into their heat pumps.” Groundbreaking energy Solutions The Ground Source Project of the Year prize was presented at the National ACR & Heat Pump Awards ceremony on 6 March 2025 at the Midland Hotel in Manchester.  Viessmann Climate Solutions UK’s Vitocal 150-A air source heat pump, installed by Viessmann VIPartner Custom Renewables, was highly commended in the Domestic Air Source Project of the Year. The heat pump at Alex Hilton’s Aylesbury property provides heating and hot water and is powered by 18 solar PV panels with 10 kWh battery storage, which together provide enough energy to cover most of the energy demands of the home, including an electric hob and an EV. 

The Plumbing-Heating-Cooling Contractors—National Association (PHCC) Educational Foundation is expanding its online offerings to better serve the growing needs of the plumbing and HVACR community, making it a central hub for proper education, training and certification in the p-h-c industry.  The Foundation is adding a suite of new courses to the PHCC Academy platform that are available to all plumbing and HVACR students, apprentices and practicing technicians, as well as business owners and their administrative staff, to obtain mandatory certifications to comply with federal regulations regarding refrigerant handling and to complement their business management and leadership skills.  Technician certification prep In partnership with ESCO Institute, the first course will introduce refrigerant safety and low GWP refrigerants The existing HVACR curriculum is being enriched by two new certification preparatory courses, equipping technicians with the proper knowledge to earn credentials to safely work in the field and be able to purchase and transport low GWP refrigerants confidently.  In partnership with ESCO Institute, the first course will introduce refrigerant safety and low GWP refrigerants (A2L), as well as cover proper installation, service, and associated codes and standards. The course aims to prepare individuals for ESCO Institute’s refrigerant safety certification exam.  The second course will address EPA Section 608 of the Federal Clean Air Act, mandatory for professionals who work with appliances that contain ozone depleting refrigerants. This course will prepare students to take the EPA Section 608 examination, needed for working in the field, and teach them how to properly maintain, service, repair, or dispose of such appliances.  Additional perks Apart from these HVACR-related courses, new plumbing courses (coming later in the year), and a series of business-focused learning modules are available. Geared towards p-h-c industry professionals at any level, and with no prerequisites needed, the Business Leadership Essentials course will help individuals work on their communication, teamwork, and problem-solving skills. The Foundation has partnered with the expert-led learning platform GoalMakers to offer this solution that strengthens a leadership team and directly improves bottom lines. Some of the more advanced courses will focus on project administration and Finance Management. This course will help business owners better understand financial statements, tax rights and responsibilities, and empower them with the necessary skills for managing their business finances.  Mastering HVACR & business "We’re always looking to enhance our educational programming to ensure our p-h-c workforce is properly trained and complying with the regulatory requirements impacting the industry,” said Dan Quinonez, Executive Director of the PHCC Educational Foundation. “In order for technicians to work with systems containing refrigerants, they need HVACR certifications for safe handling. At the same time, there is also a need for professionals in the industry to build their business skills, refine their organisational leadership and confidently manage company finances to improve their profitability. Our priority is to be the premier educational resource for the industry, whether that person is on the jobsite or in the boardroom.”   Skilled workforce demand The length of the individual course varies, and so does the pricing, depending on whether an exam is required. However, all course participants receive a certificate of completion. The PHCC Academy continues to be an important resource for training HVACR and plumbing professionals amid the skilled labour shortage impacting the industry. According to the U.S. Bureau of Labor Statistics, the p-h-c industry will need approximately 114,500 qualified new workers by 2028.

The HVAC/R industry is in the process of a major shift as A2L refrigerants become the standard in residential and commercial system HVAC. This change is being propelled by stricter environmental policy and advancements in refrigeration technology. However, the transition is not without its hurdles, posing new considerations for system owners, technicians, and equipment manufacturers. Favor of GWP alternatives The Environmental Protection Agency (EPA) has established clear guidelines to phase out hydrofluorocarbons (HFCs) in favor of lower global warming potential (GWP) alternatives.  The 700 GWP limit imposed by the EPA, forced manufacturers away from non-flammable A1 to mildly flammable A2L refrigerants for comfort cooling chillers and air-to-air unitary equipment. R-410A split systems  Under current regulations, R-410A split systems can still be installed until January 1, 2026 Under current regulations, R-410A split systems can still be installed until January 1, 2026, but manufacturers had to halt production of R-410A-based equipment by January 1, 2025.  As for packaged systems, which are fully assembled and sealed at the factory, sales will remain permitted until January 1, 2028, but only for equipment manufactured before 2025. Adaptation of A2L refrigerants These regulatory milestones mark a significant step toward a new era in HVAC/R technology, emphasizing sustainability and compliance with modern environmental standards. While the transition is underway in our market as we speak, there are some key factors that play into the adaptation of A2L refrigerants. How we implement, gain familiarity, and roll out these systems provides challenges.  System Design Modifications ASHRAE Standard 15 first added these requirements in its published version of 2019 ANSI/ASHRAE Standard 15 is widely recognized as the preeminent guide for the safe use of refrigeration equipment, as evidenced by its inclusion in building codes at the state and local level. ASHRAE Standard 15 first added these requirements in its published version of 2019. For high-probability systems, in which the basic design or the location of components is such that a leakage of refrigerant from a failed connection, seal, or component could enter the occupied space, these requirements underwent major revisions for the 2022 version, with intent to better harmonize with the requirements in UL 60335-2-40. Modifications in HVAC system design The transition to A2L refrigerants necessitates modifications in HVAC system design to ensure compatibility and safety. One significant consideration is component compatibility; all system components, including compressors, heat exchangers, and expansion devices, must be rated for A2L refrigerants to ensure optimal performance and safety.  Failure to use appropriate components could lead to operational inefficiencies or increased safety risks. Component Testing/Approval Requirements UL 60335-2-34 is a safety standard that applies to motor-compressors used in refrigeration systems UL 60335-2-34 is a safety standard that applies to motor-compressors used in refrigeration and air-conditioning systems. The UL 60335-2-34 6th edition was established in 2017 as the safety standard for compressors, introducing several key updates. One major change is the requirement for a new Maximum Rated Current marking, ensuring clear identification of electrical ratings. Additionally, the standard introduces various new testing methods for motors and their protective mechanisms to enhance safety and reliability.  Testing methods outlined in UL 207 UL207 covers “Refrigerant-Containing Components and Accessories, Nonelectrical” which are components Danfoss refers to as “line components”, such as filter driers, expansion valves and pressure regulating valves.  The testing methods outlined in UL 207 include burst pressure tests, fatigue tests, and hydrostatic tests to verify nonelectrical refrigerant-containing components and accessories. UL 207, which remains a referenced standard under UL 60335-2-40, has been reapproved for use with R-454B. Dealing with A2L refrigerants Compliance can be achieved through burst testing at five times the maximum pressure rating Unlike A1 refrigerants, where leaks at gaskets or mechanical seals were not a concern at twice the maximum pressure, such leaks now pose a significant issue when dealing with A2L refrigerants.  Compliance can be achieved through burst testing at five times the maximum pressure rating or by conducting a fatigue test at three times the maximum pressure rating without the product bursting or leaking from any mechanical connection. Implementation: Choosing a Solution Understanding what makes sense for your sector of the market for this transition is paramount in how OEMs will implement (and many already have) A2Ls into the next generation of equipment. Let’s zoom in and look at the HVAC segment related to commercial A/C units. The two main A2L refrigerants that were approved via SNAP rule 26, being used to replace R-410A in the 2025 transition requirement, are R-32 and R-454B. These two offer different approaches to the design requirements needed to be implemented. R-454B Danfoss has a selection tool called Cool Selector® 2 that is free to download online While no refrigerant is a direct replacement for R-410A, R-454B which has a GWP of 466, is considered a relatively close “drop in” solution. As such, most major components of the system, such as compressors and heat exchangers, can usually stay the same size. This is the lowest GWP solution available in the “high-pressure” range. With that being said, R-454B operates at lower pressures than R-410A, it also operates at lower mass flows than R-410A. This can leave your current liquid line, liquid line solenoid, expansion device slightly oversized. It is considered good practice to verify the sizing of these existing components when introducing R454B. Danfoss has a selection tool called Cool Selector® 2 that is free to download online. This can help you in verifying Danfoss components.  R-32 If the transition to A2L refrigerants is going to coincide with a major redesign of that unit, then R-32 (GWP 677) may be an option for your transition. R-32 will work at overall higher operating pressures and provide a significant increase in capacity vs R-410A. But with this comes the reality that most components in the system, possibly including piping sizes, will need to be changed to better suit the use of R32. R32 as a refrigerant, will also generate higher discharge temperatures than systems running with R-410A, creating a problem that manufacturers will need to account for in low ambient heat pumps and high condensing temperature environments. Leak Detection and Mitigation Refrigerant leak detectors must be installed in every unit with individual circuits charged with 4lbs As A2Ls pose a higher flammability risk, effective leak detection and mitigation strategies are essential for maintaining safety in environments where A2L refrigerants are used. Refrigerant leak detectors must be installed in every unit with individual circuits charged with 4lbs of A2L refrigerant or more.  More details on charge limits for systems and what mitigations requirements are needed can be found in UL60335-2-40 Annex GG. These detection systems enable quick identification and response to refrigerant leaks, reducing the potential for accidents or equipment damage. Danfoss leak detectors use thermal conductivity technology, were among the first to be UL-approved a year ago and come in a variety of configurations for HVAC/R equipment manufacturers. Proper mitigation strategies Proper mitigation strategies are crucial for preventing refrigerant accumulation in case of leaks. They must be tied into the unit control scheme. Disengaging any heating elements eliminates the possibility of ignition sources. Engaging evaporator fans increases circulation, ensuring that any leaked refrigerant is quickly dispersed, minimizing the likelihood of hazardous concentrations forming. In addition, per UL60335-2-40, service and maintenance procedures must incorporate regular leak inspections as a standard practice. Refer to ASHRAE 15 or UL60335-2-40 for further readings and requirements. Service and Familiarity Technicians must gain a version of the parts of A2L refrigerants and are required to pass an A2L test While manufacturers focus on design changes to accommodate the A2L transition, industry members who will install and service units also must adjust to the changing landscape of refrigerant. Technicians must gain an understanding of the characteristics of A2L refrigerants and are required to pass an A2L certification test under EPA Section 608.  Looking Forward This phase of transition is better conceptualized as a mid-term solution. The American Innovation and Manufacturing (AIM) Act was passed in 2020. This directed the EPA to address hydrofluorocarbons (HFCs) and phase down production and consumption of HFCs by 85% by 2036. It is likely in the future, we will see another step in transitions to ultra-low GWP Refrigerants such as R-290 (A3 class), R-1234ze, or R-515B. Before the AIM Act, individual states like California were looking to regulate their own refrigerant marketplaces. As adoption of new EPA regulations might be slowed under the current U.S. administration, it is uncertain if any future deregulation by the federal government could lead to some states restarting their own regulation programs. But as we stand now, lower GWP A2L refrigerants still continue to grow in the marketplace.

“If you don’t like the weather in New England, just wait a few minutes.” To this day, Mark Twain’s quote is used to describe quickly changing weather conditions in regions throughout the United States, United Kingdom, and elsewhere. However, in contrast to the weather, the climate change being experienced globally is creating nontraditional conditions that are much more permanent. Consequently, HVACR systems are being subjected to a new set of conditions that, if not addressed properly, may significantly impact performance, efficiency, and lifespan.  Report from Climate Central 75% of the Earth’s land has become permanently drier over the last three decades Consider a few examples. According to a recent report from Climate Central, as a result of climate change, Michigan has nine fewer subfreezing days in winter. The European Union’s Copernicus Climate Change Service reported that the average temperature in the summer of 2024 in Europe was 1.54 C above the average between 1991 and 2020.  According to the United Nations Convention to Combat Desertification, 75% of the Earth’s land has become permanently drier over the last three decades, caused in part by declining humidity in some regions. Climate change impacts such as these have made it increasingly important for HVACR contractors to understand the ways new weather-related factors can challenge equipment performance and durability—and to help customers optimize the resiliency of their systems. Three main challenges To follow are insights and tips that can help contractors successfully “weather” three main challenges driven by climate change: extreme heat, high or low humidity, and extreme weather events.  As this information demonstrates, no matter how hot, dry, wet, or stormy your region has become, being proactive in system checks and maintenance can help customers’ systems run effectively, minimize repair costs, and ensure equipment operates through its expected lifecycle.  Climate-change impact one: extreme heat In extreme heat, parts such as compressors and condensers undergo more than the standard wear From potential leaks to higher energy bills, the need for air conditioners to run longer and harder to achieve desired cooling temperatures as temperatures rise can be literally and figuratively costly to your customer, a building’s occupants, and the environment. In extreme heat, components such as compressors and condensers undergo more than the standard wear and tear. If not properly maintained to meet rigorous demands, equipment may not be able to cool a space adequately. This means it will potentially consume more energy and increase energy bills. Equipment could also overheat, break down, require costly repairs, and reach end of life more quickly. In addition, higher temperatures, longer run times, and increased condensing pressure may lead to more leaks. Take these steps to help HVACR system owners overcome the challenges of extreme heat: Check air filters frequently and replace them as needed. Dust and debris can accumulate quickly in hot, dry weather. Perform comprehensive regular maintenance. This should include cleaning condenser coils and maintaining proper refrigerant levels. Optimize settings. Raising the thermostat slightly when daily temperatures peak can help reduce energy consumption and wear and tear on components. Work with facility managers to ensure proper building insulation. This can reduce heat gain and lessen the burden on air conditioning systems. Create shade for outdoor units and keep them clear of debris. Protection from direct sunlight can help maintain cooler operating temperatures. Climate-change impact two: humidity Indoor comfort and HVACR system performance depend on keeping the right humidity balance Indoor comfort and HVACR system performance depend on maintaining the right humidity balance. When humidity is too low, air is dry and static, leading to discomfort for occupants and potential issues with air quality and system operation. However, if humidity is too high, systems will have to work harder to remove moisture from the air while simultaneously providing the desired level of cooling. Take these steps in high-humidity situations: Keep tabs on moisture buildup and perform regular cleaning of components such as ducts, filters, and evaporator coils. Identifying and removing moisture accumulation can prevent damage from mold or corrosion. Ensure proper insulation of ductwork to help mitigate moisture buildup. Enhance dehumidification systems and make sure they are properly sized to handle specific humidity levels. Check air filters, blowers, condensate drains, and ductwork to ensure proper airflow. In low-humidity situations: Install humidifiers. Consider humidifiers that can be integrated with the heating/cooling system to achieve a consistent level of approximately 30% to 50% relative humidity. Perform regular humidifier maintenance, including cleaning and replacing filters, checking for mineral deposits, and ensuring all lines are clear. Ensure proper insulation of ductwork and seal any leaks. Perform regular maintenance checks of HVACR systems as noted above Climate-change impact three: extreme weather events It’s not unusual for extreme weather events—including intense thunderstorms, snowstorms, and windstorms—to cause power outages and surges, flooding, or high winds, all of which can physically damage HVACR equipment. To avoid system problems or, possibly, total system failure it’s important to assess damage as quickly and thoroughly as possible then implement the necessary repairs or replacements. Be sure in these situations to always prioritize technician safety and, where applicable, to obtain clearance from emergency responders.  Take these steps to support system resilience during extreme weather events: Conduct routine maintenance as noted in factors one and two above. Work with facility managers to ensure buildings have proper insulation and weatherproofing. Have emergency backup power sources in place. Ensuring continual operation during power outages is especially important for mission-critical systems. Best practices for routine equipment checkups One final point to consider on this topic is that employing the practices above can help reduce further contributions to the global warming that drives climate change. One example is taking steps to prevent refrigerant leaks. Another is energy conservation that can be achieved by systems that run at optimized efficiency. Even efforts to prolong the lifespan of systems can help decrease the waste of resources and other materials.  While “waiting a few minutes” may prevent someone from unnecessarily canceling a ballgame or picnic on account of rain, the HVACR industry needs to address the challenges of climate change “without delay” and for the foreseeable future. Continuing best practices for routine equipment checkups and maintenance, increasing system checks in climates that have become hotter, drier, wetter, or stormier than usual; and employing some new techniques can all work together to ensure resilient systems, satisfied customers, and a healthier planet.

It’s often said the only constant in life is change. In the HVACR industry, that phrase has been especially true. We saw another year of transitions in 2024 that included evolving efficiency and refrigerant regulations, changing corporate net zero targets, the continued emergence of advanced heat pumps, and the impact of artificial intelligence (AI) in building management.  Smart and sustainable Throughout these transformations, the industry continues to overcome challenges and innovate as we transform the places where people live, work, and play into smarter, healthier, and more sustainable spaces.    As we look toward 2025, we can expect to see a continued, industrywide focus on decarbonization, heat pump development, A2L refrigerants, and AI as regulations expand and new technologies emerge.    Decarbonization  Decarbonization continues to be a very high priority for both the residential and commercial sectors Decarbonization continues to be a very high priority for both the residential and commercial sectors. This focus has transformed the way we design and install HVAC equipment and has created tremendous opportunities for those who invest in educating themselves on the evolving technologies, regulations, and incentives. Today’s building professionals and homeowners have an unprecedented number of incentives available at the federal, state, and utility levels encouraging decarbonization transitions.  Digital and net zero services For example, tax credits such as 25C for consumers and 179D for commercial building owners were expanded under the Inflation Reduction Act (IRA) and can significantly reduce the upfront costs of high-efficiency equipment, creating a compelling offer to replace less efficient systems. In commercial buildings, combining high-efficiency HVAC equipment like electric heat pumps with digital technologies and net zero services can help empower organizations to optimize their buildings and subsystems for both the short- and long-term. Heat pumps  Heat pump technology has advanced significantly in recent years, providing an electrified, high-efficiency HVAC option for nearly all applications – even those operating within colder climates. The Department of Energy’s (DOE) Residential Cold Climate Heat Pump (CCHP) Technology Challenge has propelled the successful introduction of heat pump prototypes that can withstand subfreezing weather. Similarly, the DOE’s Commercial Building Rooftop Heat Pump Accelerator program has helped drive packaged heat pump performance toward greater efficiency for commercial and light commercial buildings located in colder climate zones.  Water-to-water heat pumps Water-to-water heat pumps can replace legacy chiller and boiler combinations without the need for major changes Innovations in commercial water-to-water compound centrifugal heat pumps are also accelerating decarbonization within building retrofits. For facilities that require simultaneous heating and cooling, such as hospitals and universities, water-to-water heat pumps can replace legacy chiller and boiler combinations without the need for major changes to the existing HVAC infrastructure. This partial decarbonization approach can help building operators achieve their decarbonization goals while also lowering operational expenses (OpEx). In many instances, this reduction in OpEx also provides a path to funding additional decarbonization strategies.      A2L refrigerants   The EPA continues to make strides in reducing the consumption and production of hydrofluorocarbons (HFCs) under the American Innovation and Manufacturing (AIM) Act. As part of the AIM Act, the Technology Transitions Program will usher in sector-based regulations beginning January 1, 2025, prohibiting the manufacturing of equipment using refrigerants with a GWP higher than 700.  New protocols As a result, new equipment will continue to hit the market throughout 2025. In tandem, many contractors and technicians will begin working with A2L refrigerants for the first time. Because these refrigerants are classified by ASHRAE as mildly flammable, new protocols for safe refrigerant servicing, storage, and transportation, and refrigerant leak detection (RDS) requirements will be necessary for some applications.   ACCA A2L refrigerant training Contractors should complete ACCA A2L refrigerant training and EPA section 608 certification With these changes, it is important to become familiar with updated codes, including UL 60335-2-40, 3rd and 4th editions, ASHRAE 15 and 15.,2, and the AHRI Safe Refrigerant Transition Task Force (SRTTF), as well as local and state regulations. Contractors should also complete ACCA A2L refrigerant training and EPA section 608 certification. Additionally, new digital tools such as RDS calculators can help contractors navigate A2L leak detection requirements and mitigation strategies while in the field.    AI and controls   AI is positioned to continue to make a huge impact in HVAC. We’re seeing more service techs using generative AI and co-pilots for troubleshooting rather than paging through manuals. At the same time, AI technology can predict if connected HVAC units may have issues, making it possible for service techs to address potential issues in their earliest stages or prevent them from happening altogether. Both of these use cases can help technicians service equipment more quickly, efficiently, and accurately, which can increase equipment longevity and reliability while reducing downtime and total cost of ownership.   Building performance AI-powered building controls can provide a holistic view into contextualized, full-building performance More HVAC systems are being equipped with AI-enhanced controls and reporting. The capabilities these tools provide can give building owners greater opportunities to optimize building performance, improve occupant comfort and well-being, and more easily reach sustainability targets. From a building management perspective, AI-powered building controls can provide a holistic view into contextualized, full-building performance, occupant experience, and sustainability. Openness and flexibility As AI becomes more commonplace, AI-centric building standards, such as ASHRAE Guideline 36, will also continue to emerge that balance sustainability with occupant comfort, health, and safety.    As we move into 2025, we can expect to see another year of equipment innovations, technology advancements, and evolving regulations. As an industry, we continue to face change with openness and flexibility. And it’s this mindset that empowers us to meet, and exceed, expectations – now and in the year to come.

Certifications are official documents given by professional organizations that confirm a staff member has the necessary knowledge and skills needed to do a specific job. In the HVAC industry, certifications provide multiple benefits for various stakeholders. For technicians, certifications can demonstrate enhanced skills and knowledge, increase earning potential, improve job security, and promote greater credibility and professionalism. Certified technicians In the long run, using certified technicians boosts customer satisfaction, enhances brand image For installing companies, using certified technicians is more likely to ensure correct and efficient installations with fewer errors, callbacks, and/or warranty claims. In the long run, using certified technicians boosts customer satisfaction, enhances brand image, and provides a competitive advantage.  For manufacturers, certified technicians ensure proper installation for better product performance and longevity. For customers, employing certified technicians provides peace of mind. Proper installation ensures optimal product performance and longevity, maximizing the return on investment for customers. Certified technicians are less likely to make a mistake. Customers can have greater confidence in an installation's quality and reliability. Certification programs in the HVAC market Let’s take a look at several of the certification programs in the HVAC market. EPA 608 Certification is required by law for technicians to ensure the safe handling of refrigerants. Technicians are required to pass an EPA-approved test to earn Section 608 Technician Certification. Tests must be administered by an EPA-approved certifying organization. The U.S. Environmental Protection Agency (EPA) has a list of approved organizations on its website. Certification levels are Type I (small appliances), Type II (high-pressure appliances), Type III (low-pressure appliances), and universal (all levels) NATE Certification (North American Technician Excellence) ensures expertise in specific areas of HVACR systems, such as air conditioning, heat pumps, gas furnaces, etc. NATE is the largest non-profit certification organization for HVACR technicians in the United States and is considered the industry's gold standard. NATE certification proves that a technician has the knowledge and skills to properly install, maintain, and service HVACR systems. Technicians must pass a series of challenging exams, covering a range of topics, to become NATE-certified. HVAC Excellence Certification (provided by the ESCO Group) covers various aspects of HVAC systems, from installation to troubleshooting, validating technicians' proficiency and commitment to industry standards. ESCO Group is an organization focused on improving technical competency within the HVACR industry; they use the 'HVAC Excellence' label to denote their certification programs. HVAC Excellence’s series of certifications build upon each other, allowing technicians to progress through various levels of expertise. The organization validates educational programs, tracks content mastery at each stage of an individual’s career and provides educators with valuable resources to help them become more effective in their roles. Refrigeration Service Engineers Society (RSES) certification emphasizes fundamental principles, troubleshooting, and safety. The society offers a variety of certifications and training programs designed to enhance the skills and knowledge of HVACR professionals, including comprehensive training courses in essential HVACR disciplines, such as refrigeration, heating, electricity, and controls. After completing the relevant training, participants take exams to validate their knowledge. RSES is approved to administer EPA Section 608 Certification Testing, and Section 609 certification through the ESCO Group (focusing on motor vehicle air conditioning (MVAC) systems.) ASHRAE range of certification programs The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) offers a range of certification programs designed to recognize and validate the expertise of professionals in the built environment. Certifications include: Building Energy Assessment Professional (BEAP), focusing on the knowledge and skills needed to conduct comprehensive building energy assessments, analyze energy use, and recommend improvements.   Building Energy Modeling Professional (BEMP), which certifies individuals who can effectively use building energy modeling software to analyze building performance and design energy-efficient systems. Building Commissioning Professional (BCxP), for professionals who lead, plan, and execute the commissioning process to ensure that building systems operate as intended and meet the owner's project requirements.   Healthcare Facility Design Professional (HFDP), which focuses on the design of HVAC systems for healthcare facilities.   High-Performance Building Design Professional (HBDP), a certification focusing on professionals who can design and integrate high-performance building systems to achieve energy efficiency, sustainability, and occupant well-being. Operations and Performance Management Professional (OPMP), which certifies individuals who can effectively manage and optimize the operation and maintenance of building systems to ensure energy efficiency, occupant comfort, and system reliability. Latest technologies and best practices Certifications make the HVAC market more professional by standardizing knowledge and skills and increasing credibility and trust. Certifications ensure that HVAC professionals have a baseline understanding that ensures more consistent and reliable service. Certification demonstrates a commitment to the profession and a desire to stay updated with the latest technologies and best practices. Many employers prefer or require certification, giving certified technicians a competitive edge in the job market and potentially leading to higher pay. {##Poll1738306775 - What is the biggest benefit of HVAC certifications for technicians?##}

Hydronics systems rely on water, steam, or water solutions to distribute heating and cooling throughout a building. They are inherently more eco-friendly than conventional alternatives. First and foremost, using water as a temperature regulation method is a natural choice. There is no carbon footprint involved in its creation, and there is no inherent danger in exposure to water in the event of a system failure. Water is more efficient at carrying heating and cooling loads than other technologies. Other benefits include a wider range of maintenance flexibility and longer system life expectancy. overall efficiency of hydronics  “A misconception about hydronics is that it's more expensive compared to other HVAC systems,” says Jim Nolan, market development manager, Xylem. “While hydronic systems may require a larger upfront investment, lifecycle costs are significantly lower due to the overall efficiency of hydronics.” Flexibility in Cold and Warm Climates Hydronics offers a wider range of flexibility for components, operation, and maintenance Compared to other systems, hydronics offers a wider range of flexibility for components, operation, and maintenance. That flexibility also extends to extreme climate conditions, says Nolan. Hydronics perform reliably at very cold and very warm temperatures for improved occupant comfort and reduced energy costs. Additionally, hydronic systems draw on water’s natural thermal storage capabilities, which can substantially offset operating costs during peak demand periods. For over 100 years, Xylem’s Bell & Gossett has been at the forefront of hydronic systems as a manufacturer of pumps, valves, heat exchangers, and accessories — including steam and heat transfer — for plumbing and wastewater applications. Since 1916, the company has made a name for itself through products, industry-pioneering training at the Little Red Schoolhouse, comprehensive solutions, and application expertise, says Nolan. Products and sustainability efforts “Xylem is continuously innovating to advance and embed sustainability holistically into our solutions – from the materials we source, to making them more compact and cutting emissions, to high-efficiency motors,” adds Nolan. Advancing the efficacy and efficiency of their foundational products is what Bell & Gossett is known for, and more broadly, what Xylem is doing to embed “high impact” into all its products and sustainability efforts, says the company. Quantifiable Effect on Decarbonization Smart pump solutions like Xylem’s Hydrovar® X Smart Motor tout ultra-premium efficiency As the built environment increasingly weighs the effects of climate change and decarbonization, products must keep pace to demonstrate quantifiable impact on addressing these challenges. Smart pump solutions like Xylem’s Hydrovar® X Smart Motor tout ultra-premium efficiency, sustainably sourced materials, and compact design, delivering high impact in terms of intelligence and productivity. Built-in condition monitoring empowers customers to leverage data for additional pump protection and optimized performance. Equally essential is continued education and collaboration with industry partners to help commercial building owners navigate the challenges of achieving decarbonization and net-zero goals, says Nolan. That includes training opportunities at Bell & Gossett’s Little Red Schoolhouse to teach industry professionals about sustainable solutions, he adds. Ideal distribution system “Water is considered technology agnostic – no matter what type of technology exists today or in the future, modern hydronic systems can easily adapt to a variety of energy sources,” says Nolan. “As solar and geothermal grow, building owners and designers are recognizing that hydronics provide an ideal distribution system for these alternative technologies to perform.” Hydronic system efficiency is already well-documented in thousands of real-world applications, says Nolan. Hydronics reduces operating costs by using water as a heat transfer medium, which is more effective than air. Efficiency and cost savings are maximized when these systems are powered by renewable energy sources. Overcoming Obstacles to Equipment Reuse In some cases, though, existing HVAC equipment may be too outdated for reuse In some cases, existing HVAC equipment can be reused to achieve sustainable, carbon-neutral systems, says Nolan. Adaptive reuse projects involve repurposing an existing building for new use and reusing as much existing equipment as possible to save costs, conserve resources, and minimize construction-related disruptions. Upgrading existing hydronic systems with smart technology like advanced controls and smart motors can improve performance and efficiency, says Nolan. Another option is to incorporate high-efficiency components like heat pumps. In some cases, though, existing HVAC equipment may be too outdated for reuse. In others, existing building footprints may limit design options. To overcome this, a thorough assessment of current building conditions and performance can provide a better understanding of the original system design. Identify ways to reduce energy consumption Energy audits, building performance evaluations and environmental impact assessments provide valuable insights into an existing building’s energy consumption, resource usage and environmental footprint. The purpose of these tools is to identify ways to reduce energy consumption or operating costs by upgrading to more energy-efficient equipment or by building a better system. “There’s a whole industry built around energy audits—they’re typically conducted by industry professionals who have qualifications or certifications to ensure they have the knowledge and skills to perform thorough and accurate assessments,” says Nolan. Challenges to Deregulation and Achieving Net Zero Deregulation or the elimination of natural gas in existing buildings presents challenges. While hydronic equipment is essentially decarbonized because it runs on electricity, many utilities still rely on fossil fuels. Only when those providers switch to renewable energy and the grid infrastructure is expanded to deliver enough electricity will environmental impact be realized.  Although many areas are moving toward decarbonization and achieving net-zero energy, in regions where energy is cheap, there are few incentives to embrace renewable energy and building electrification. As HVAC equipment becomes more efficient and uses less energy, communities will realize the cost savings and gravitate toward better technology.

SNAP Rule 26 marks an important milestone in the transition from commercial refrigeration to new refrigerants. The rule lists refrigerant substitutes that provide a spectrum of technological solutions to meet required performance, global warming potential (GWP), safety, and environmental standards.  SNAP stands for Significant New Alternatives Policy, a program by the U.S. EPA (Environmental Protection Agency) under the Clean Air Act. In general, the program aims to evaluate and regulate substitutes for ozone-depleting substances, considering their overall risks to both human health and the environment. Impact of SNAP Rule 26 Final SNAP Rule 26, Protection of Stratospheric Ozone, lists acceptable substitutes in commercial and industrial refrigeration. SNAP Rule 26 will be effective July 15, 2024. The incorporation by reference of certain material listed in the rule is approved by the Director of the Federal Register as of July 15, 2024. The incorporation by reference of certain material listed in the rule is approved by the Director of the Federal Register “To date, the SNAP program has provided a very effective framework for evaluation and approval in support of innovation and the transition to new technology,” says Andrew Pansulla, Technical Service Engineer, The Chemours Company, a global chemistry company that provides a range of refrigerant products. We asked Pansulla to elaborate further on the impact of SNAP Rule 26 and what lies ahead. Q: How will the Rule’s finalization impact various commercial refrigeration sectors? Pansulla: The rule’s finalization will impact commercial refrigeration in several ways. Areas, where impact will likely be seen, include providing more acceptable refrigerant options, adherence to updated standards, new equipment design standards, and the exemption of propane from the venting prohibition for refrigerated food processing and dispensing equipment. These impacts could trigger changes in operational, manufacturing, and environmental compliance strategies in the commercial refrigeration sectors. SNAP Rule 26 will enable the adoption of the listed substitutes, including Chemours Opteon™ refrigerants, with global warming potential (GWP) lower than existing refrigerants. This rule does not require any changes to existing equipment and will impact only new equipment that uses the specific substances referenced in the SNAP rule. Q: What is the outlook for additional requirements for safe handling and use of alternative refrigerants? What specific safety standards are expected or appropriate? Pansulla: As part of the comparative risk framework used by the EPA to assess new alternatives, the EPA considers and implements use conditions that will ensure the safe use of products. These use conditions rely upon existing safety standards (e.g., UL and ASHRAE) which are available at the time the rule is finalized. In the case of SNAP Rule 26, many of the use conditions require adherence to UL 60335-2-89 and ASHRAE-15-2022. These standards are reviewed and updated periodically to maintain relevance with the products subject to the standards. Q: What are any limitations of the use of A2L refrigerants under SNAP Rule 26? Pansulla: There are two main categories of limitations under SNAP Rule 26. The first, as mentioned above, is the adherence to specific safety standards that apply to refrigerants that are designated as mildly flammable (A2L). The second is based on the GWP of the refrigerant. In the case of the A2L refrigerants subject to SNAP Rule 26, the EPA imposed conditions on the type of equipment and specific circumstances in which the substitute may be used. For example, the EPA is permitting the use of R-454A in supermarket systems, but only on the high side of a cascade system, or when the refrigerant charge capacity is less than 200 pounds. Q: Which new-generation A2L refrigerants are fit for which commercial refrigeration applications? Pansulla: Under SNAP Rule 26, the EPA deems R-1234yf, R-1234ze(E), R-454C, R-455A, R-457A, and R-516A as acceptable subject-to-use conditions for various commercial refrigeration applications. This selection is primarily driven by these refrigerants having GWPs under 150. However, certain applications necessitate refrigerants with higher GWPs due to unique performance characteristics. For example, R-454B and R-32 were listed for industrial process refrigeration with exiting fluid temperatures below minus 30 degree Celsius because these two specific refrigerants have lower boiling points than the other six less-than-150-GWP alternatives. However, it is critically important to consider the additional use conditions when designing equipment with refrigerants that have a GWP greater than 150. Q: So various equipment needs different refrigerants? Pansulla: The EPA purposefully lists several different refrigerants in each application to allow for equipment manufacturers to consider a variety of different factors that go into refrigerant selection, such as energy efficiency, capacity, normal boiling point, temperature glide, cost, safety, and use conditions. There is no one-size-fits-all solution for the entire commercial refrigeration industry. Q: How can commercial refrigeration businesses achieve a smooth transition to A2Ls? Pansulla: Keys to a smooth transition to A2Ls include understanding what refrigerants the EPA has approved as acceptable substitutes under the SNAP program, the sector-based GWP limits imposed by the Technology Transitions Program under the American Innovation and Manufacturing (AIM) Act, and which refrigerants provide the best combination of technical performance and environmental characteristics. Many resources are available to navigate the regulatory landscape and select the best low-GWP refrigerants to meet the needs of this industry. Working with companies like Chemours, who has nearly a century of refrigerant innovation and experience, is a great first step in the transition process. Q: What is the “staying power” of A2Ls — based on their chemistry, sustainability, and other attributes, combined with regulations such as SNAP Rule 26? Pansulla: The identification, selection, and development of new refrigerants that deliver required performance while meeting increasingly stringent environmental standards is a challenging process. With the identification of certain hydrofluoroolefin-based (HFO) refrigerants as an alternative to meet these criteria came a new safety classification. These HFO-based refrigerants are classified as A2Ls. While slightly more flammable than existing hydrofluorocarbon-base (HFC) refrigerants, HFOs are much less flammable than hydrocarbons, which are classified as A3 (two categories higher on the ASHRAE flammability spectrum). Moreover, such refrigerants offer an excellent alternative to substances with higher toxicity, such as R-717. The listing of A2L refrigerants in SNAP Rule 26 clearly indicates that such refrigerants can be used safely in commercial refrigeration as well as many other applications, which are subject to the SNAP Program, when adhering to the applicable safety standards.

Trane® – by Trane Technologies, a global climate innovator, announces that energy-saving infrastructure upgrades are underway at the Northern Illinois University (NIU) campus in DeKalb, Ill. Trane, a pioneer in building and energy solutions, is collaborating with the university to develop and implement a comprehensive energy-saving and emissions-reduction program. energy-saving solutions Over the course of the next 18 months, Trane and NIU will upgrade the DeKalb campus with comprehensive energy-saving solutions including LED lighting, water conservation measures, building weatherization improvements, Solar Photovoltaic installations at multiple locations, EV charging stations, Thermal Energy Storage for cooling, high-efficiency heating and cooling system upgrades, and smart HVAC building controls. As a result of these improvements, NIU is projected to achieve over a 26% reduction in energy consumption and an 11% reduction in emissions. energy-saving program This campus-wide initiative supports NIU’s technical, social, environmental, and financial goals The new energy-saving program by Trane will help NIU reduce its carbon footprint and achieve measurable progress toward the university’s goal of reducing emissions by 50% by fiscal year 2030, further solidifying NIU’s commitment to sustainability leadership. This campus-wide initiative supports NIU’s technical, social, environmental, and financial goals, delivering sustainable benefits to the community while integrating sustainability into campus life, strategic planning, and decision-making. Sustainability and Climate Action Plan In 2023 the university established a comprehensive Sustainability and Climate Action Plan, aiming to establish a pioneering position in sustainability education and research. Campus improvements will have an annual greenhouse gas emissions equivalent to removing 6,552 cars from the road or planting 455,169 trees according to the Environmental Protection Agency’s Greenhouse Gas Equivalencies Calculator. Environmental stewardship “In collaboration with Trane, we are excited and thrilled to be pursuing a greener future for Northern Illinois University, our community, and our world,” NIU President Lisa C. Freeman said. “NIU already plays critical roles in education and research related to sustainability, but this effort demonstrates our commitment to modeling sustainable behavior and environmental stewardship.” Energy, and operational savings By leveraging Energy Savings Performance Contracting (ESPC), this budget-neutral approach will enable progress The updates are funded through a combination of federal, state, utility, energy, and operational savings. By leveraging Energy Savings Performance Contracting (ESPC), this budget-neutral approach will enable progress. This allows NIU to reinvest capital against other priorities that align with its vision of being a regional and national model for sustainability. By collaborating with Trane, the university can finance today’s facility upgrades with tomorrow's energy savings, without tapping into capital budgets. Reducing energy consumption “NIU’s commitment to both sustainability and the comfort of students and staff created a strong foundation for this extensive sustainability program,” said Jon Dunlap, Upper Midwest Area Director of Energy Services, Commercial HVAC Americas, Trane Technologies. “We are proud to collaborate and help them achieve their energy efficiency goals. These improvements will help reduce energy consumption and carbon emissions and create more resilient and sustainable learning spaces for students and more comfortable working environments for staff.” on-campus sustainability goals In addition to ambitious on-campus sustainability goals, the Trane and NIU collaboration will incorporate significant social impact elements, including new workforce development opportunities for students through capstone projects, internships, and employment opportunities. The program emphasizes community engagement and uplift around sustainability, energy career paths, and STEM education. These efforts further enhance NIU’s community presence and contribute to the broader community’s economic and social well-being.

Wren is a climate subscription service that helps individuals offset their carbon footprint through monthly contributions. Users can calculate their carbon emissions using Wren’s intuitive calculator and fund various climate projects, including refrigerant destruction. Wren emphasizes transparency by providing regular updates on the impact of contributions, including data, photos, and stories. The platform aims to make climate action simple and effective, ensuring that every dollar contributes to meaningful environmental change.  About A-Gas  A‑Gas is a world pioneer in the supply and lifecycle management of refrigerants and associated products and services. Through the first-class recovery, reclamation, and repurposing processes, we capture refrigerants and fire protection gases for future re-use or safe destruction, preventing harmful release into the atmosphere. For over 30 years, A-Gas has supported clients and partners on their environmental journey by supplying lower global warming gases and actively increasing the circularity of the industries we serve, building a sustainable future.   Challenge  HCFC-22 is a potent greenhouse gas with a global warming potential (GWP) much higher than CO2 The widespread use of refrigerants like HCFC-22 (R22) presents a significant environmental challenge. HCFC-22 is a potent greenhouse gas with a global warming potential (GWP) much higher than CO2 (one molecule of R22 has a global warming impact 1,810 times that of one molecule of CO2). If not properly managed, its release would have a negative impact on the atmosphere. As these refrigerants reach the end of their lifecycle, there is an urgent need for effective solutions to prevent their emissions and minimize their environmental impact.   Solution  To address this challenge, A-Gas recovers refrigerants for reclamation or destruction at A-Gas facilities across the country. By leveraging Wren's platform to mobilize individual contributions and A-Gas' technical expertise in lifecycle refrigerant management, this partnership enabled an environmentally conscious solution for the used refrigerant. It underscores the potential for innovative partnerships that can help to further reduce emissions in the refrigerant industry through its on-site refrigerant recovery service (Rapid Recovery®), refrigerant buyback programs, and wholesale supplier reclaim program (Refri-Claim™). HCFC-22 destruction project The ACR methodology has included HCFC-22 as eligible for destruction-generated offsets since 2017 Wren and A-Gas formed a partnership to provide Wren subscribers with the opportunity to fund an HCFC-22 destruction project through the generation of A-Gas carbon credits to ensure the gas does not escape into the atmosphere. While the ACR (formerly American Carbon Registry) methodology has included HCFC-22 as eligible for destruction-generated offsets since 2017, few have completed such projects because the price of HCFC-22 is so high; it is more profitable for organizations to reclaim this product.  ACR’s methodology As such, this is one of the first HCFC-22 destruction projects utilizing ACR’s methodology. Approved by the International Civil Aviation Organization (ICAO) to provide carbon credits in its Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), ACR is highly regarded across the world.  Results  The partnership yielded multiple environmental benefits:   Emissions Avoided: The initiative successfully avoided the release of 16,000 tons of CO2-equivalent emissions by destroying HCFC-22. This substantial elimination of greenhouse gas emissions demonstrates the effectiveness of the program.   Subscriber Engagement: Wren provided its subscribers with detailed updates on the impact of their contributions. These updates included data on the quantities of HCFC-22 destroyed and the corresponding emissions reductions. This transparency helped build trust and encouraged ongoing participation in climate action.   Educational Impact: The collaboration raised awareness about the importance of proper lifecycle refrigerant management. Wren and A-Gas educated the public on lesser-known aspects of climate change mitigation by highlighting the environmental benefits of destroying high-GWP substances.   Conclusion  This partnership enabled an environmentally conscious solution for the used refrigerant By leveraging Wren's platform to mobilize individual contributions and A-Gas' technical expertise in lifecycle refrigerant management, this partnership enabled an environmentally conscious solution for the used refrigerant. It underscores the potential for innovative partnerships that can help to further reduce emissions in the refrigerant industry.  refrigerant destruction protocols and technology "We are excited to work with A-Gas to push forward the standard of refrigerant destruction protocols and technology," said Landon Brand, CEO, of Wren. Landon Brand adds, "This is one of the most reliable and impactful project types we have found in our years of funding climate solutions, and we hope our community can keep blazing a trail to eliminate these dangerous refrigerants."

Honeywell announced that Hisense, a global consumer electronics and appliance manufacturer, will incorporate Honeywell's energy-efficient Solstice low-global warming potential (GWP) refrigerant into its residential air conditioning units. Hisense units will use Honeywell Solstice® 454B, a low-GWP refrigerant acknowledged for its outstanding performance in both cooling and heating. Hisense’s decision to integrate Honeywell’s Solstice refrigerant is in line with global efforts to phase out higher GWP refrigerants for air conditioners and heat pumps. Technological advancements "Driven by a commitment to pioneering scientific and technological advancements, Hisense relentlessly strives to enhance the quality of life and bring boundless joy to countless families,” said Hao Wang, general manager of the Supply Chain Management Department at Hisense. “Our alliance with Honeywell signifies a formidable leap towards sustainability, as we integrate cutting-edge refrigerants into our industry-pioneering air conditioning units, ensuring unparalleled cooling efficacy with minimal environmental impact." Use of high-HFCs Integration of Honeywell’s Solstice refrigerant into Hisense units comes amidst the recent increase The integration of Honeywell’s Solstice refrigerant into Hisense units comes amidst the recent increase in legislative mandates across the country to reduce the use of high-GWP hydrofluorocarbons (HFCs) in response to the growing global emphasis on addressing climate change.  The partnership between Hisense and Honeywell also follows the U.S. Environmental Protection Agency’s recent announcement of a 40% quota cut in the production of HFC refrigerants as of January 1, 2024. Lower carbon footprints “The world is migrating away from refrigerants with high-global warming potential, but it is also accelerating innovation to create responsible replacements that lower carbon footprints and improve energy efficiency, all without sacrificing safety and end-product performance,” said Jeff Dormo, president of Honeywell Advanced Materials. “Honeywell anticipated the need for these solutions more than a decade ago when we introduced our Solstice technology, and today we are pleased to be able to partner with manufacturers like Hisense that are leveraging our expertise to enhance their own sustainability efforts in alignment with the global energy transition.” New capacity for its Solstice technology Honeywell has invested more than $1 billion in research, development and the creation of new capacity for its Solstice technology, which currently has applications in refrigerants, blowing agents, aerosols and solvents, and is also being evaluated for expanded use in metered dose inhalers. Since its introduction in 2011, the use of Honeywell Solstice technology has helped avoid the potential release of the equivalent of more than 326 million metric tons of carbon dioxide into the atmosphere or the carbon emissions from nearly 70 million gasoline-powered passenger vehicles per year.

Achieving net-zero emissions will mitigate climate change and prevent the worst impacts of global warming. Net zero is the state in which the total amount of greenhouse gases emitted into the atmosphere is equal to the total amount removed. HVAC systems represent a large opportunity to impact how soon we can achieve net zero. We asked our Expert Panel Roundtable: What is the role of HVAC in achieving net-zero emissions by 2050?

For schools, improving indoor air quality (IAQ) is a basic function of HVAC systems, which also ensures a high comfort level for students, teachers and staff. Schools can be a lucrative market for HVAC systems, but there are challenges, such as long sales cycles and the lingering impact of the COVID-19 pandemic. We asked our Expert Panel Roundtable: What are the challenges for HVAC in serving the education/schools market?

The practice of working from home soared during the coronavirus (COVID-19) pandemic and many observers see a likely continuation of the trend, as infection risks gradually subside. Both environments – home and office – depend on HVAC systems to keep occupants comfortable (and safe!). Therefore, the industry stands to be impacted whichever way the trend plays out. We asked our Expert Panel Roundtable: How will remote working affect residential and commercial HVAC?