Residential HVAC

Heat exchangers are used to transfer thermal energy from one type of liquid or steam source to another kind of liquid source at a wide range of facilities. Whether heating a space or some type of fluid in a manufacturing process, using leftover heat is an energy efficient way to preheat another system. The process requires maintaining effective heat transfer between the two sources, which is why regular testing and maintenance of the heat exchanger is so crucial to efficient and trouble-free operations. Read on for an overview of heat exchangers and learn how a regular assessment program saves energy, reduces costs, and helps facility staff stay focused on their priorities. Heat exchanger basics and common challenges A heat exchanger is a system used to transfer heat between a source and a working fluid. They are used in both cooling and heating processes for space heating, refrigeration, air conditioning, power stations, chemical plants, petrochemical plants, petroleum refineries, natural-gas processing, and sewage treatment. A variety of open loop and closed loop heat exchanger designs are used depending upon the application, including plate and frame, shell and tube, brazed plate, and submerged tube.  Steam system function The steam system has a function, either heating the space or heating the fluid for a process The steam system has a function, either heating space or heating fluid for a process. When that heat is used, leftover heat turns into condensate, which returns to the boiler as water that can be used to preheat something else. For example, using leftover steam to preheat domestic hot water means the water system will not have to work so hard. The concept also applies in manufacturing settings. If frying potato chips at a specific temperature, for example, the heat exchanger allows the steam to heat the oil and then modulates how much steam it takes to guarantee the correct temperature for frying oil. The temperature at which the heat is reached can be precisely controlled by controlling the pressure of the steam. Heat exchange process The heat exchange process involves maintaining effective heat transfer between the two sources, which is made challenging by the fact that heat exchangers are highly susceptible to scale build-up from treated or untreated water. In addition, these mineral deposits attach to the tube bundle surface, creating the following issues: Energy losses: Scale build-up and leaks reduce the effectiveness of the system’s heat transfer capability. Even a thin layer of scale can reduce heat transfer by 3 to 6 percent, costing thousands of dollars in wasted energy. Open loop systems (domestic hot water, clean steam generators, steam exchange humidifiers, and some manufacturing processes) have the most scale because of the constant makeup water, which contains dissolved minerals. They should be cleaned annually. Closed loop systems (building heat systems and some manufacturing processes) should be cleaned at least every three years, or as needed. Increased heating time: As scale develops, it takes a heat exchanger far longer to transfer heat. For example, if the facility requires reliable access to hot water, descaling the heat exchanger helps maintain the energy transfer time as designed by the manufacturer. Leaking tube bundles: As the scale attaches to the heat exchanger, it begins to corrode the surface. Over time, the scale can eat away the metal and create leaks. Inspection, testing, and cleaning helps to avoid emergencies where a leak suddenly appears and the heat exchanger fails to work correctly. Most heat exchangers will leak undetected until the steam system experiences water hammer, an increase in failed traps and valves, or pressure/temperature issues. In most cases, these problems can be prevented through a regularly scheduled inspection, testing, and descaling program.  Four key objectives of heat exchanger assessments Regular heat exchanger assessments are critical to their efficient use. The four most important objectives of such a program – which should include testing, maintenance, and repairs – are ensuring operational integrity, guaranteeing thermal efficiency, promoting water conservation, and promoting chemical conservation. Operational Integrity Heat exchange review should begin with basic identification and documentation A heat exchange assessment should begin with basic identification and documentation of the heat exchangers. The documentation should include the tag #, location, type, manufacturer, model, and application. For example, APM heat exchanger surveys identify each exchanger with a unique number on a stainless steel tag, which provides a quick and easy way to reference the heat exchanger’s location and information.  Hydrostatic pressure testing is then conducted, in which the heat exchanger is taken offline to identify and verify the functionality of isolation valves and ports for cleaning. Pressure testing will then be carried out to verify the integrity of the bundle. Fluid is run through the heat exchanger at a pressure slightly above the operating pressure to enable investigators to determine if there is a leak from one medium to the other (e.g., from the water side to the steam side).  Heat Exchanger Survey Reports Heat exchanger survey reports include summary data listing the total number of exchangers, highlighting those with “function-impeding issues,” and a graphic presentation of results. Information includes total estimated annual steam losses; total estimated annual thermal losses; heat exchanger valve status; and tube bundle failures.  In the case of leaking heat exchangers, the assessment will include measurements of the water volume leaking, the temperature coming from the tap water, and the temperature desired as an output. A spreadsheet is developed to calculate how much energy is lost, which can be used by utilities to provide incentives to repair leaking heat exchangers. Installation Of a Port All the operational integrity data is folded into a final report with review details All the operational integrity information is folded into a final report with assessment details, along with information on the cost of cleaning each heat exchanger and/or any necessary repair costs. If there are no leaks, borescope pictures can be used to capture visual assessment and prove scale build up in the bundle and an assessment of whether it can be cleaned in the future. If necessary, the report might include suggestions for installation of a port that allows for cleaning-in-place procedures.  Thermal Efficiency Since fuel is being used to create heat, operators need to ensure that the heat goes where it is intended. In a catastrophic scenario, for example, a leaking heat exchanger, water that had been heated up to a certain required temperature is leaking from the water side into the steam side and flowing away with condensate. That water must be replenished, and, since replenishment water will be street water that usually comes in at a temperature of about 60 to 65 degrees Fahrenheit, it will take considerable energy to be heated up again to the desired output temperature of 130 degrees Fahrenheit. This waste of water that has already been heated represents a serious loss of thermal efficiency.  Clean-In-Place Process The scale buildup starts to reduce the volume of medium that can go through the heat exchanger Buildup of whiteish scale on the water side of the heat exchanger also prevents the efficient transfer of heat. Perfectly clean metal transfers heat from one medium to the other way far better than metal caked with scale.  In addition, the scale buildup starts to reduce the volume of medium that can go through that heat exchanger, so all things being equal, it will take more time to get the same amount of water out as the scale builds up and reduces the element’s usable volume. In this case, thermal efficiency is improved by descaling using a clean-in-place process, which is far less disruptive for facilities and operations personnel.  Energy Demand on Pumps Removing scale is extremely important because scale increases the differential pressure through the heat exchanger. It also reduces flow and increases energy demand on pumps and reduces the ability to transfer heat effectively and efficiently. Scale also creates an environment for under-deposit corrosion, which can shorten the life of the heat exchanging equipment. It can be difficult to measure precisely how much energy is lost due to the scaling because that will depend upon the chemical composition of the scale, the size of the bundle, and the pressure on both ends. The assessment report may contain a picture taken by a borescope showing the bundle as installed and one with the current status to illustrate the amount of scale buildup.  Water Conservation In the case of a leaking bundle in a heat exchanger, water must be replenished, which can result in significant additional costs, depending upon the community water costs.  Chemical Conservation Without the branch of these chemicals, water from the street could destroy the boiler and corrode it faster than This element is especially critical for steam production applications. The makeup water going into the boiler for making steam is highly treated with chemicals, including corrosion inhibitors and other chemicals to prevent bubbling up and wet steam in the system. Without the addition of these chemicals, water from the street could destroy the boiler and corrode it faster than.  Operators producing steam are looking to capture all the heat out of that steam, then return the steam that turns into condensate to the boiler. In effect, the condensate is like liquid gold – operators seek to preserve as much condensate as possible and bring it back to the boiler. A leaking heat exchanger leads to diluting water. The water ends up colder and lacking the right chemistry, so more water must be added to restore that chemistry. If not caught in time, the boiler can corrode quickly.  Establishing the rOI for heat exchanger care activities The heat exchanger assessment program should include energy savings calculations with return-on-investment data so operators can evaluate the business case for performing the cleaning and get an estimate of the significant overall savings that can be achieved. The information includes a calculation of approximate heat exchanger cleaning program payback time in years, based on assumptions for cost of steam, percentage transfer loss due to scale buildup, and fouled heat exchangers.  APM Steam has found that the average steam cost for most facilities is about $15 per 1000 pounds of steam produced. Ten of those dollars (about two-thirds) of the cost is energy. Establishing the ratio of water to chemicals cost depends on the facility and how much treatment the water needs, but estimates suggest about $3 for water and $2 for chemicals to make 1000 pounds of steam. Heat exchanger assessment The heat exchanger review should be undertaken at least every 3 years, relying upon the location APM Steam generally provides operators with a conservative assumption that they can save about 3 percent of their energy consumption by cleaning scaling. The heat exchanger assessment should be undertaken at least every three years, depending upon location. In an area of poor water quality (i.e., one with hard water that creates a lot of scaling), operators might test more often, while areas with good water treatment may not require more frequent testing. Testing should ensure that heat exchangers are hitting their set points, are free of scale, and are not leaking. Regularly making sure that is the case and addressing issues promptly is the way to go. Scale build up over time degrades the system and is likely to lead to more issues.  Heat exchanger evaluation on the ground  APM has been providing service to the 562-bed University of Vermont Medical Center since 2011, helping them run their steam system as efficiently as possible as they focus on patient care and academic research. The work included surveying several buildings with more than 500 steam traps, and over 20 different heat exchangers. Then APM built a comprehensive program to assess the most cost-effective opportunities for energy savings. The first survey identified more than $50,000 in yearly savings from repairing or insulating traps, as well as cleaning in-place of several of their heat exchangers. While savings for steam traps are widely documented, estimating energy savings from cleaning in-place heat exchangers is still a bit more of an art than science; however, when heat exchangers have been in operations for many years without servicing, they accumulate scale which reduces the actual heat transfer coefficient of the unit. Improvement in energy consumption APM estimated that cleaning heat exchangers yielded another $50,000 per year Cleaning in-place heat exchangers reduces the amount of energy required to heat up the water side of the exchanger. Using a conservative 1 percent improvement in energy consumption from heat exchangers, APM estimated that cleaning heat exchangers yielded another $50,000 per year. At the start of the project, their boiler plant used two boilers to feed their entire campus. After the completion of the comprehensive steam project, University of Vermont Medical Center was able to shut down one of their boilers and use it only for backup. HEX testing and assessment survey Another example is the Metropolitan Hospital Center, in New York City, which experienced a critical issue regarding excessive water returning to the boiler system. To assess the underlying problem and ensure system reliability and performance, APM Steam was asked to conduct a comprehensive heat exchanger (HEX) testing and assessment survey. The survey revealed that three heat exchanger bundles had failed, causing a significant drop in system efficiency and performance.  APM identified, sourced, and arranged for expedited delivery of aftermarket replacement bundles in under six weeks. The APM team then quickly installed the HEX bundles to restore system functionality and returned the next day to optimize system performance by reducing steam pressure. This adjustment ensured efficient operation and reduced stress on the system components. Face of unexpected challenges The system has operated without any issues, stressing the success of the timely and effective resolution Since the intervention, the system has operated without any issues, underscoring the success of the timely and effective resolution. The proactive approach to diagnostics, swift action in sourcing and installation, and subsequent pressure adjustments, has restored the system to optimal functionality. This example really underscores the importance of vigilant system monitoring, rapid problem identification, and most importantly, efficient resolution strategies that help maintain critical infrastructure reliability, ensuring a seamless return to regular operation even in the face of unexpected challenges. Staying on top of issues is more cost effective than waiting  Heat exchangers are vital equipment in a facility, and problems are not always visible. Failed tube bundles and heat exchanger isolation valves can adversely affect operational integrity of building heat, domestic hot water, or other facility processes. Conducting a regular heat exchanger assessment and following up with cleaning and repairs saves time and money. It also helps eliminate unwelcome surprises at understaffed facilities where staff have to do so much with so few resources. Rather than requiring staff to drop their regular duties and respond to an emergency, a regular cleaning program using external resources makes better use of staff and makes maintenance tasks more predictable. 

Aalberts integrated piping systems (IPS), a global pioneer in advanced integrated piping systems for the distribution and control of liquids and gasses, proudly highlights its Shurjoint line. It is designed to meet the evolving demands of engineers, contractors, and facility managers in HVAC and plumbing applications.  Revolutionizing Pipe Connections Shurjoint’s M07 coupling delivers a reliable seal with its patent-pending wedge design with cutting labor timeThe Shurjoint line exemplifies Aalberts IPS' commitment to innovation, offering features that streamline installation and enhance long-term product performance. At the core of the Shurjoint line is the M07 coupling, a cutting-edge product with a patent-pending wedge design and single-bolt configuration. These features ensure uniform compression for a reliable seal, significantly reducing labor time and costs. Available in both painted and galvanized finishes, the M07 coupling is tailored to withstand diverse HVAC and plumbing system requirements. Superior Flow Control Solutions Shurjoint's M07 coupling is engineered for stability, making it ideal for risers and long straight runs in general piping applications. Meanwhile, the fully constrained wedge design provides consistent system performance, ensuring that leak points are minimized over the life of the installation. The line also includes the SJ300 butterfly valve, a high-performance product offering superior flow control. With applications spanning compressed air, heating, and cooling systems, this valve enhances efficiency across residential and commercial installations. Versatile & Durable Solutions Shurjoint line addresses critical challenges of modern building systems, supporting precise operations With a focus on durability and versatility, the Shurjoint line addresses critical challenges in the construction and maintenance of modern building systems, supporting precise, reliable, and efficient operations.  The Shurjoint M07 coupling has proven its value in real-world applications. In a recent mid-rise residential project in Toronto, ON, the M07 coupling played a pivotal role in meeting the challenges of a tight installation schedule within a densely populated urban environment.  Fast & Secure Connections Its innovative design enabled fast, secure connections, ensuring reliability while reducing labor demands. Feedback from the project’s installers highlighted the simplicity and speed of the M07 fittings, reaffirming Shurjoint as a go-to solution for reliable and efficient piping connections. High-Performance Technology For engineers, contractors, and facility managers seeking dependable, high-performance solutions, the Shurjoint line from Aalberts IPS offers innovative technology that meets the needs of modern construction and maintenance.

Heating and hot water appliance manufacturer, Navien UK, is expanding its flagship NCB range of boilers with the launch of two new 30 kW models for its the NCB300 and NCB500 ON combi boilers. Designed in response to industry demand, these new options provide installers with greater flexibility when selecting the right boiler for their customers. NCB300 and NCB500 ON boilers “When choosing a boiler, selecting the correct kW rating is essential to ensuring optimal comfort and performance for a property,” says Jason Davies, sales director at Navien UK. “By introducing a 30kW option for our NCB300 and NCB500 ON boilers, we’re giving installers more choice and making it easier to meet the needs of their customers.” Navien Choice Plus rewards program Navien will be offering installers the chance to earn more points through its Navien Choice program To celebrate the launch, Navien will be offering installers the chance to earn more points through its Navien Choice Plus rewards program.  From the 10 March until 30 May, installers can unlock three levels of rewards for every third NCB500 ON boiler they install this spring. Earn points and unlock rewards As members of Navien Choice Plus, installers can gain 30 extra reward points for installing three NCB500 ON boilers, 60 extra points for installing six NCB500 ON boilers and finally, 90 extra points for installing nine NCB500 ON boilers. Once nine installations have been achieved – and if there is still time left on the promotion – the points will be reset, giving installers more time to earn points and unlock further rewards. Navien’s reward scheme The points can be used to unlock high-quality rewards from cameras and smart watches The points can be used to unlock high-quality rewards from cameras and smart watches to coffee machines, DeWalt toolkits and even holidays through Navien’s reward scheme. Jason added: “We are delighted to be running another rewards bonus scheme this spring to support the launch of our 30kW NCB500 ON. With extra points being earned on every third NCB500 ON install over the next three months, across three different levels, it seems that good things do come in threes!" Range of NCB ON features Jason added: “Our award-winning range of NCB ON features innovative ON technology, which enables them to provide rapid hot water and consistent temperatures with no fluctuations in temperature." "Following great success, we are excited to introduce a smaller model to the range, which will no doubt make this technology accessible for many more households.” The promotion will run from the 10 March until 30 May 2025, only installations of the NCB500 ON will apply.

“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.

For warehouse and factory owners, cutting their heat energy bills by over 90% might seem like a pipedream. I’ve been in enough warehouses to know one thing: heating them is expensive and frustrating. It often feels like throwing money into the wind. However, times are changing, and with the introduction of Shortwave Infrared (SWI), a revolutionary technology set to redefine warehouse heating, business owners can finally achieve energy savings on the scale they need.  Shortwave Infrared (SWI) For warehouse owners, slashing heat energy bills by more than 90% might sound far-fetched. Having spent time in countless warehouses, I know one thing: heating them is both costly and frustrating like throwing money into thin air.  But times are changing. With the arrival of Shortwave Infrared (SWI), a ground-breaking technology poised to transform warehouse heating, business owners can now achieve the substantial energy savings they've been seeking.  Beyond the Status Quo  Faced with soaring bills, warehouse, and factory owners are actively seeking better alternatives For years, warehouse heating has been stuck in a cycle of inefficiency opting for bulky systems that consume vast amounts of energy but offer little in return. High heating bills were once seen as an unavoidable cost of doing business. However, the energy price hikes of 2021 and 2022 completely changed the game, straining heating budgets and forcing a rethink of what's acceptable.  But there are positives to find in the situation. Faced with soaring bills, warehouse, and factory owners are actively seeking better alternatives.  Next-gen technology An industry long overdue for disruption has finally found the push it needed to embrace 'next-gen' technology. Enter Shortwave Infrared, ready to take the spotlight.  At the forefront of the heating revolution, it’s delivering unprecedented energy savings and cost efficiency, setting a new standard for businesses nationwide.  Lost in Translation  So, what sets SWI apart, and why does it outperform current systems? It all comes down to SWI's core heating principles. One of the most rewarding moments of my career was seeing the reaction of workers, shivering in a drafty space, suddenly feeling the warmth from SWI heaters. Their faces said it all – they couldn’t believe how something so simple could work so effectively.  However, the main issue is that currently, the warehouse and logistics sector largely depends on convection heating, which works by warming the air within a space. While this might be adequate for smaller, enclosed areas, it falls short in large, open-plan spaces where heat quickly dissipates.  Basic physics Turning up the thermostat won’t help either, as the principles are floored from the beginning It all comes down to basic physics, warm air rises. In buildings with high ceilings, this means heat drifts upwards, leaving workers on the ground cold, while the warmth stays out of reach. The issue is made worse by large doors and windows, which allow even more heat to escape.  For those lucky enough to be near a heater, it can be hit-or-miss. Turning up the thermostat won’t help either, as the principles are floored from the beginning. You’ll just be draining budgets quicker than before. SWI: A New Frontier  On the other hand, Shortwave Infrared Heating offers a revolutionary solution. By providing localized heat, it ensures workers stay comfortable and productive, regardless of the ambient temperature.​ Unlike traditional heating systems, SWI eliminates heat loss by targeting individuals directly – a feeling akin to the warm sun on your back. This strategic approach not only saves energy, but also creates a more comfortable workspace, making it an ideal solution for businesses seeking major efficiency and cost savings.  Cost and carbon savings Unlike convection heating, SWI also delivers consistent warmth, eliminating cold spots.  Additionally, its electric power source offers substantial cost and carbon savings, making it a sensible choice for those looking to align their heating systems with ESG initiatives.  The Verdict is In  By implementing SWIR, we helped them achieve a 90% reduction in energy consumption The good news is that the word is out, and companies are now reporting over 90% energy savings while drastically reducing their carbon footprints. A recent customer faced the challenge of heating a massive 5,000-square-meter space. By implementing SWIR, we helped them achieve a 90% reduction in energy consumption, exceeding expectations.  Annual energy consumption The numbers speak for themselves. Annual energy consumption dropped from 150,000 kWh (gas) to 16,000 kWh (electricity), showcasing the incredible potential for change in UK businesses. This is just one example, imagine what we can achieve rolling out SWI across the country,  The positive impact on the bottom line has prompted the company to implement SWI across all of its UK sites. As a sustainability-driven business, SWI provides a crucial solution to reduce reliance on carbon-heavy fossil fuels.  The Future is Bright  SWI's potential to transform warehouse and logistics is endless and businesses are now waking up to its potential, and are rightly being drawn in by the idea of significant cost and carbon savings. It’s a shift in mindset that’s challenging traditional heating methods. By focusing on precise, targeted warmth, rather than wasteful, resource-heavy convection heating, UK businesses are already saving millions of pounds each year.  Efficiency of infrared technological challenges Business owners are accustomed to thinking of heating as raising the overall temperature of a space Yet one of the biggest challenges the industry faces is a mental one, not a mechanical one. Business owners are accustomed to thinking of heating as raising the overall temperature of a space. However, this outdated approach fails to consider the efficiency of infrared technology, which delivers focused warmth directly to workers, equipment, or specific areas.  Impact of SWI I'm always thrilled to see the reactions of customers amazed by the impact of SWI. However, we need more people to embrace this innovative heating method, which means winning more hearts and minds.  For those ready to make the switch, the benefits will be substantial, potentially saving thousands, if not millions, on heating bills at a time when they need it most.

Data centers worldwide are under intense pressure. High-powered computing is a global necessity that seemingly gets more demanding by the day. There’s also the need to prioritize sustainability improvements ranging from resource conservation to decarbonization. And data centers must consider their bottom line and remain competitive. Anticipating the challenges data centers will continue to face, scientists and engineers have innovated two-phase (2-PIC) immersion cooling. With the capacity to meet the elevated cooling requirements driven by high-powered computing, this next-generation solution delivers on environmental priorities by significantly lowering data center energy consumption, slashing, if not eliminating, water use, while supporting decarbonization, circularity missions, and more. Emergence of 2-PIC Traditional approaches are fast approaching capacity for meeting current and future cooling needs The emergence of 2-PIC comes at a critical time, because the traditional cooling methods that have kept data centers up and running so far—namely air cooling and water cooling—are doing so at the detriment of the planet.  Additionally, these traditional approaches are quickly approaching capacity for meeting current and future cooling needs. Air- and water-cooling methods are used in approximately 95% of the estimated 8,000 data centers that exist today. The criticality of high-powered computing Once seen as a future need, high-powered computing, and faster-than-ever processing are now established as critical to the operation of businesses, governments, organizations, and other entities that support the way communities function, survive, and thrive. Whether it’s health and wellness, financial institutions, economic growth, safety and protection, entertainment, education, or any other service supporting our way of life, successfully providing that service fully depends on the ability of data centers to quickly and reliably obtain, store, and process data.  Influence of AI AI has a profound influence and, generates far more power than traditional internet uses Moreover, when we say “data centers,” we’re not just speaking of big players like Microsoft, Google, Meta, and Amazon. Equally dependent on high-performance, high-speed computing are enterprise data center operators, such as our governments and military, financial institutions, healthcare systems, educational institutions, and more.  We also must acknowledge the profound influence of artificial intelligence (AI), which generates far more power than traditional internet uses. Its effects are far-reaching, enhancing patient care, supporting risk management and fraud detection in finance, boosting crop yields within agriculture, and more. The environmental costs of data centers According to the latest estimates by the International Energy Agency, data centers worldwide produce 1% of energy-related carbon emissions and in 2022 used approximately 460 TWh of electricity per year—equating to 2% of global electricity demand. McKinsey and Company estimates 40% of this electricity is used for data center cooling. Data centers’ impact on the environment also includes their significant water consumption, averaging 300,000 gallons per day, and a physical footprint that averages 100,000 square feet but in the case of some hyperscale data centers can range between 1.3 to 2 million square feet. In terms of growth, a U.S. market report from Newmark tells us that in the U.S. alone, the U.S. data center footprint will absorb 35 gigawatts by 2030, which is more than twice the data center power consumption of 2022. The emergence of liquid cooling: the elevated interest in 2-PIC From reducing energy and water consumption to shrinking physical footprints, 2-PIC offers the planet a better data center solution. In less than two years, traditional cooling systems won’t be able to support the exponential growth in the world’s data processing and storage applications. Based on publicly available product roadmaps from major chip manufacturers, by 2026, air-cooled systems will no longer be able to meet the cooling needs of most next-generation, high-performance computing chips. Capable of removing heat more effectively than air cooling, liquid cooling uses a liquid such as water or a dielectric fluid to cool the heat-generating components of servers. The liquid can cool these components directly, or it can be done indirectly through a heat exchanger. With two-phase immersion cooling the entire server rack is submerged in a tank filled with a dielectric fluid. Single-phase and two-phase liquid cooling Single-phase liquid cooling uses a pump to circulate the liquid through a closed-loop system Single-phase liquid cooling uses a pump to circulate the liquid through a closed-loop system. Two-phase liquid cooling uses a phase-change material, such as a refrigerant, which evaporates and condenses as it absorbs and releases heat. With 2-PIC, which is a form of two-phase liquid cooling, the entire server rack is submerged in a tank filled with dielectric fluid. The fluid boils as it’s heated by the components of the servers, creating bubbles that rise to the surface and condense in a heat exchanger. Gravity then returns the condensed fluid to the tank, creating a natural circulation loop that does not require pumps or fans. Advantages of 2-PIC 2-PIC is commanding attention as the solution for meeting the cooling demands of the high-powered computing components of today and tomorrow. Moreover, the technology of 2-PIC systems, combined with the right dielectric fluid, delivers advantages to “take the heat off” data centers. Here’s a breakdown of additional 2-PIC benefits: Up to 90% reduction in energy consumption: Based on modeling completed by the industry, 2-PIC is expected to reduce up to 90% of data center cooling energy consumption and 40% of overall data center energy consumption*. (*Compared to traditional air-cooling technologies) Enhanced computing performance and data center reliability: 2-PIC allows servers to operate at higher temperatures and power densities, while reducing the risk of overheating. Significant reduction in water consumption: Depending on the data center location and cooling design methodology, water consumption could even be eliminated completely. 60% reduction in the physical footprint: 2-PIC reduces the space required for cooling equipment, freeing up more floor area for servers and increasing the rack density of the data center. Lower GWP and circularity: Chemours Opteon™ 2P50 is a developmental dielectric heat-transfer fluid, currently pre-commercial, pending regulatory approval. It offers an extremely low global warming potential (GWP) of 10 and was specifically created to optimize the performance of the electronic components in a 2-PIC system. This 2-PIC fluid also enables the reprocessing/reuse of existing fluid to maximize circularity.  The bottom line: In addition to other compelling data, a recent study commissioned by Chemours and LiquidStack through Syska Hennessy, revealed that, compared with other state-of-the-art liquid cooling methods, 2-PIC can deliver up to a 40% lower total cost of ownership (TCO) and significantly reduce operational expenditures (OPEX), with savings ranging from 54% to 88.6%. Benefits of new data center cooling technologies compared to single-phase direct-to-chip, and single-phase immersion methods. 2-PIC, the future-ready solution As the world’s reliance on AI and other high-powered computing capabilities escalates, data center cooling solutions must grow with demand while significantly reducing their impact on the environment. In global energy savings alone, 2-PIC could generate an estimated savings of 340 TWh by 2055—the equivalent of powering more than 517 million laptops 24/7. And even with increasing IT loads, 2-PIC maintains its performance, ensuring long-term cost-effectiveness and adaptability to meet future demands. With society at a crossroads between the criticality of high-powered computing and a planet in crisis, the industry is turning its attention to 2-PIC as the solution for today and tomorrow.

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.

Gaining early popularity in the 1970s, previous generations of heat pumps were only considered useful in mild climates. But today, modern heat pumps, especially variable-speed mini-split heat pumps, are reliable, sustainable, and used in various ways, including ways our parents and grandparents would never have thought of. New uses include she sheds, man caves, garages, tiny homes, sunrooms, and even boats.  We spoke to Sean Gallagher, Regional Sales Manager, Eastern Massachusetts, Mitsubishi Electric Trane HVAC US (METUS), to discuss how people use heat pumps in the U.S. and abroad. He described some of the technology's varied (and sometimes surprising!) uses.  Q: What are the most common applications of heat pumps on boats and marine crafts, and how do they differ from residential or commercial uses?  Gallagher: I know one Diamond Contractor® who installed a heat pump on his father’s yacht. Since my territory includes Southeast Massachusetts and Rhode Island, I frequently see heat pumps on the large car-carrying and passenger-carrying ferries. Although commercial applications like ferries are more common, I think we will see more heat pumps on people’s boats and yachts, especially since we use an anti-corrosion coating that protects the outdoor heat exchanger against salt, sulfur and other airborne contaminants that impact the efficiency and performance of outdoor units.   Q: What are some other "off-beat" or previously underappreciated applications for heat pumps – she sheds, man caves, garages, tiny homes, sunrooms, or something similar?  Heat pumps are being used in high-end campers like Airstreams, smaller campers, parking lot kiosks Gallagher: All those applications apply, and there’s plenty more. My niece lives in a 400-square-foot studio apartment over my garage that’s heated and cooled with a heat pump. I also installed a low, wall-mounted heat pump unit in my father’s tool and woodworking shed. Since his tools hang on the wall, he didn’t want to give up any wall space, so now, he has a climate-controlled workshop that suits his needs. Heat pumps are also being used in high-end campers like Airstreams, smaller campers, parking lot kiosks, food trucks, and even intermodal shipping containers turned into spaces like laboratories.   Q: What are the key advantages of using variable-speed mini-split heat pumps in smaller applications in various climates?  Gallagher: All-climate heat pumps can conquer any climate in New England and most of the United States. Overall, variable-speed mini-split heat pumps provide efficiency, ease of installation, comfort, and quiet, regardless of outdoor temperature. Some of the best heat pumps on the market provide warmth, even if the temperature drops to a chilly –22 degrees F. At the opposite end of the thermometer, heat pump systems can cool indoor spaces when it’s a scorching 115 degrees F.  Q: How does the equipment used for these applications differ from the equipment in more common HVAC use cases?  Gallagher: In most HVAC use cases, people use a unitary, conventional HVAC device to heat a home. However, the market has been moving away from unitary devices toward having custom control in every room. Think about if you turned on your kitchen faucet and every faucet in the house turned on, or if you turned on your bedroom light and every light in your home turned on with it. It’s inefficient, which is how unitary systems work. All-climate heat pumps give precise temperature control and custom comfort in any area, whether it’s a shed, man cave, or garage. Each person can heat or cool the space to their comfort level. This is how heat pumps work in general and in these off-beat use cases.  Q: How has the reliability of modern heat pump technology expanded the potential for marine and other applications?   One-to-one heat pumps are perfect for smaller applications because of their turn-down ratio Gallagher: Since Mitsubishi Electric’s Hyper-Heating INVERTER® (H2i®) technology is not new – having come out around 2009 – the technology has grown by leaps and bounds. Today’s one-to-one heat pumps are perfect for smaller applications because of their turn-down ratio. They can ramp up quickly and then throttle back to meet the needs of a space, through a setpoint, in heating and cooling to use only the energy necessary to maintain the comfort of that indoor space. Multi-zone applications can handle larger spaces with ease and efficiency.  Q: Can you provide examples of how heat pumps are being used on boats or marine crafts in the U.S. and abroad? What technologies are they replacing?  Gallagher: Heat pumps are replacing electric-resistance heat, gas-fired HVAC units, and hydronic systems for watercraft powered by steam. For cooling, heat pumps are replacing chilled water systems on larger ships. Heat pumps are frequently used on large car-carrying and passenger-carrying ferries. I also know of people who have installed them on yachts and other boats, which I think will become more prevalent.  Q: What are the challenges HVAC professionals might face when installing and maintaining heat pumps on boats and/or in smaller applications?  The biggest challenge they face is contending with the caustic nature of the saltwater environment Gallagher: For maritime applications, the biggest challenge they face is contending with the caustic nature of the saltwater environment. I mentioned this a minute ago, but salt can degrade non-ferrous metals, like copper and aluminum. It’s crucial to use an anti-corrosion coating that protects the outdoor heat exchanger against salt, sulfur, and other airborne contaminants that impact the efficiency and performance of outdoor units. Some companies specialize in taking heat pumps apart and coating all the parts that could corrode to prevent them from doing so. This makes the heat pumps last much longer than they otherwise would.  Q: How does the installation of heat pumps on boats align with the growing demand for energy-efficient and sustainable solutions in the marine industry?  Gallagher: Energy-efficient heat pumps consume far less energy than a conventional HVAC system. Heat pump systems cycle hot and cold air where it’s wanted depending on the season and provide personalized comfort on a boat year-round. Modern heat pumps, especially variable-speed mini-split heat pumps, are reliable and sustainable, providing high-performance heating and air conditioning on boats anywhere, even in extremely cold or warm climates. Heat pumps are preferable in most climates, as the efficacy of a heat pump is generally 1.5 to 4 times greater when compared with electric resistance heating. {##Poll1731297929 - Which of these applications for heat pumps seems most surprising?##}

Housecall Pro, founded in 2013, seeks to transform how home service professionals manage their businesses. Their mission to "Champion Our Pros to Success" underlies a software platform that offers scheduling, dispatching, invoicing, payment processing, payroll, and customer management solutions.   artificial intelligence (AI) In addition, the “AI Team Member,” using artificial intelligence (AI), provides specialized expertise through AI-powered coaches, customer service reps, analysts, and marketers, allowing businesses to offload busy work and discover growth opportunities.   Housecall Pro has fostered success beyond software has cultivated a community of home service professionals and offered personalized business coaching. The holistic approach, combining technology with human-centric support, positions Housecall Pro as a partner in their clients' success, according to the company.  on-site efficiency Automating everyday tasks, scheduling, dispatching, and invoicing enables pros to work As a technology company, Housecall Pro delivers tailored solutions for players in the HVAC ecosystem, says Roland Ligtenberg, a co-founder. “Contractors benefit from streamlined scheduling, dispatching, and invoicing, freeing them from time-consuming admin work,” says Ligtenberg. “Installers gain mobile access to job details and customer information, boosting on-site efficiency.”  Technology is the engine that can drive any successful HVAC business, turning chaos into streamlined operations, says Ligtenberg. Automating everyday tasks, scheduling, dispatching, and invoicing enables pros to work “on” their business, not just “in” it, he adds.   real-time insights Digital tools provide real-time insights into job performance and team productivity while enhancing the customer experience, ultimately delivering five-star-level service. Mobile apps keep the team connected, ensuring communication and quick service.   Manufacturers can partner with Housecall Pro to leverage contractor and platform insights, ensuring a seamless contractor experience by getting the right materials on time. service experience The difficulty in finding experienced workers limits growth, forcing businesses to invest heavily in training Consumers enjoy enhanced communication, transparent pricing, and simple payment options, driving a better service experience. By connecting these players, Housecall Pro fuels efficiency, collaboration, and growth throughout the HVAC industry says Ligtenberg.  Broader employment trends like the shortage of skilled labor, high turnover, and training challenges put serious pressure on field service management. The difficulty in finding experienced workers limits growth, forcing businesses to invest heavily in training or find efficiencies to attract top talent. real-time guidance Housecall Pro can help by standardizing processes with features like checklists and automated workflows, thus ensuring tasks are performed correctly. The platform streamlines onboarding, supports technicians with real-time guidance, and maximizes productivity.  Field service management in HVAC is tough, juggling complex scheduling, dispatching, and mobile workforces while maintaining service quality can overwhelm any business. Many struggle to identify the key data and key performance indicators (KPIs) that drive their growth.   centralized platform Housecall Pro’ centralized platform automates scheduling, delivers real-time updates, and keeps teams connected Housecall Pro’ centralized platform automates scheduling, delivers real-time updates, and keeps teams connected. “Our AI Team Members offload repetitive tasks, freeing up pros to focus on what matters most,” says Ligtenberg. “The intuitive interface and robust reporting tools help HVAC companies track job progress, monitor technician performance, and optimize routes.”  operational efficiency HVAC contractors can supercharge their growth with Housecall Pro by leveraging their “AI Team Members,” which handle tasks from analysis and accounting to marketing and customer service. The platform automates admin work, boosts operational efficiency, and elevates the customer experience. The built-in marketing tools attract new clients with automated follow-ups and personalized communication and also keep existing customers coming back. Service plans, or memberships, drive recurring revenue and customer loyalty.   smart solutions Housecall Pro’s suite of digital tools is designed to help contractors thrive The HVAC industry is rapidly transforming with rising demand for smart solutions, energy efficiency, and modernized operations. Housecall Pro’s suite of digital tools is designed to help contractors thrive.  “Choosing the right field service management solution is critical, and Housecall Pro puts AI at the forefront of where the industry is headed,” says Ligtenberg. “Staying ahead of the curve is the greatest competitive advantage.”  scalable network effect Ligtenberg adds, “Our community is second to none, connecting with like-minded pros who are early adopters of best practices and cutting-edge technology." "In addition to powerful tools, Housecall Pro provides a network that blends innovation, passion, and a commitment to growth. This combination of advanced technology and a vibrant community creates a scalable network effect, ensuring you’re always competing at the highest level,” says Ligtenberg. {##Poll1728362872 - What is the biggest challenge your HVAC business faces today?##}

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."

The Olsen Group, based in Boca Raton, Florida, is a national pioneer in HVAC energy optimization. Donald Olsen and his seasoned team of HVAC control specialists have been in business for two decades, integrating energy-saving solutions into over a thousand commercial and large-scale residential projects. In the process, the Olsen Group has become one of North America’s top suppliers of Verdant thermostats. Verdant devices leverage intelligent occupancy sensors and proprietary software to reduce HVAC runtimes by 45 percent on average. HVAC control integration Verdant’s effectiveness, reliability, and broad compatibility have made Verdant the energy management solution of choice for thousands of hotels and MDUs, including multifamily buildings, senior living, and student housing.  The Olsen Group has forged a productive two-way partnership with Verdant. Donald Olsen and his team have made it a priority to share data, customer feedback, and requirements with Verdant – and Verdant, in turn, has come to rely on Olsen when they need to field test a new solution. In May of 2024, Verdant reached out to Olsen for help with a new pilot program aiming to facilitate more effective HVAC control integration, easier service, and deep energy savings for MDU projects around the globe. The Challenge Commercial VRF systems have an extremely attractive set of upsides for hotel operators Inverter (VRF) system design is becoming increasingly common in hospitality settings. Commercial VRF systems have an extremely attractive set of upsides for hotel operators. They are significantly more energy efficient and quieter than traditional VTACs or PTACs; they can provide simultaneous heating and cooling to different zones for optimal guest comfort; and they allow both individual room-level setpoint control and building-level centralized management. However, the majority of VRF units cannot connect directly to a third-party smart thermostat. Because they rely on proprietary manufacturer protocols for variable speed commands and internal diagnostics, VRF units require an external control solution to facilitate bidirectional communication with Verdant thermostats. Installation and commissioning process Every additional component in a system adds complexity and opportunity for human error. In hotels, that complexity is multiplied across hundreds of rooms. “HVAC systems are installed dark for new builds, with no power running to the site,” says Donald Olsen, President and Owner of the Olsen Group. “There’s no way to test as we go. If there are any mistakes during installation, we find out about it when the lights go on after project completion.” And mistakes are nearly inevitable. Some third-party controllers have prominent dipswitches that can be easily snagged or tripped during transportation or installation, altering their configuration and causing them to fail once the system is powered. These switches are often accidentally tripped multiple times throughout the installation and commissioning process, pioneering to a never-ending cycle of errors and service calls. VRF control solutions  Adding to the issue, not all third-party control keys have the ability to retrieve and solve system error codes “Once properly configured and installed, VRF control solutions tend to be incredibly reliable,” says Olsen. “Getting them there is a real challenge, however. Accidents, human error, and repeated recalibrations can drive serious project overruns and client dissatisfaction.” Adding to the problem, not all third-party control solutions have the capability to retrieve and translate system error codes. “If the central management system isn’t getting certified manufacturer control signals from the control device, it may no longer recognize the thermostat. The system will continue to function, but it will always show up in the central manager with an error message,” warns Olsen. Airzone Aidoo Pro control solution These false error reports degrade the overall utility of the central management system, robbing operators of the ability to detect and mitigate problems proactively and requiring onsite testing to diagnose any issues. As VRF systems become the norm for hospitality projects, Verdant needed a solution to reduce the possibility of accidental misconfiguration and improve visibility into system functionality. They called on Olsen to conduct a pilot program, retrofitting sixteen VRF units in the Jacksonville Beach, FL Springhill Suites with the Airzone Aidoo Pro control solution. The Solution For the pilot, the Olsen Group outfitted each VRV unit in the loop with an Aidoo Pro controller The Jacksonville Beach Springhill Suites is a 156-room hotel with a state-of-the-art Daikin VRV rooftop chiller system. The Airzone Aidoo Pro ships preconfigured for the specific HVAC unit model, reducing the possibility for errors during initial installation. For the pilot, the Olsen Group outfitted each VRV unit in the loop with an Aidoo Pro controller. This 1:1 system design simplifies operations and troubleshooting: Any issue can be immediately traced back to a single unit, minimizing the scope and duration or repair downtime. “The Airzone Aidoo Pro offered two key upgrades as a VRV control solution,” says Olsen. “First, the dipswitches are recessed, making them much harder to trip accidentally. Second, Aidoo makes the system much easier to service. We can read error codes, run tests, and diagnose issues remotely, without ever needing to disrupt a guest’s stay.” Airzone’s expansive library This advanced remote management is enabled by Airzone’s expansive library of manufacturer protocols. “Because of our close relationship with HVAC manufacturers, Aidoo Pro can provide the proprietary control signals the central management system is expecting to see,” says Borja Fernandez, Director of OEM Solutions, Airzone. “That preserves all the features of the HVAC unit and thermostat, while also eliminating persistent false error codes. With Aidoo Pro, the central management system can function as a single-pane-of-glass HVAC monitoring and control solution for the building, as intended.” Results and Next Steps The pilot program is expanding to new builds around the globe, including projects in the UK Olsen reports that Springhill Suites is happy with their upgraded VRV system. “They have more visibility into the system and fewer services calls,” says Olsen. “When there is an issue, we can diagnose it remotely for faster resolution and less guest room downtime. It’s a much better customer experience overall.” Verdant is encouraged as well. This pilot program is expanding to several new builds around the globe, including projects in Central America, the Caribbean, the UK, and the EU. HVAC energy savings “There is a massive untapped market for energy-efficient HVAC upgrades in the Caribbean region,” says Olsen. “Energy costs there can exceed a dollar per kilowatt hour. Cost-effective devices like Verdant thermostats and the Airzone Aidoo Pro pay for themselves very easily in that scenario.” Verdant and the Olsen Group have built global brands by helping commercial properties realize significant HVAC energy savings. Through the Airzone Aidoo Pro pilot program, they are continuing to innovate, enabling reliable integration and enterprise-grade control on highly efficient VRF units. “The demand for commercial VRF control is definitely there,” says Olsen. “With Verdant and Airzone, we can deliver it with ease.”

In facilities with high volumes of foot traffic, the constant opening and closing of doors not only lets in chilly air but can cause heating problems for the entire building. Cold drafts bring the temperatures down, so while main rooms benefit from the warmth of the building’s primary heating system, many other areas are left to deal with the arctic side effects. Vestibules, lobbies, entranceways, and hallways are frequently populated, so it’s imperative that facilities hunker down and counteract the cold drafts left behind by those entering and leaving buildings.  Opt for electric ceiling heaters To help neutralize these blustery winds, facilities should consider fan-forced wall heaters that provide continuous comfort through optimized airflow. Such units are ideal for entryways and other spaces where short bursts of heat are needed – providing a tremendous advantage over gentle heating sources that may not be powerful enough to provide the desired amount of warmth. However, if wall and floor space is minimal, facilities can instead opt for electric ceiling heaters. Mounted flat or recessed to the ceiling, these heaters are ideal not only for entryways but also in conference rooms, waiting areas, bathrooms, and lobbies. No matter the case, both products move heated air with a fan to quickly heat the room from the wall or ceiling. Once the heater turns on, the air is moved over a heating element and circulated into the space, making certain that residents are met with warmth and comfort from the time they enter the building until they leave.  Specialized heating units Specialized heating units are designed to stop drafts in their tracks before they laid throughout a building Whether it’s through vents, unsealed windows or cracks and crevices in the building’s foundation, cold air will creep into facilities any way it can. This cool air can make indoor temperatures uncomfortable for occupants and reduce the overall heating efficiency of the facility. Specialized heating units are designed to stop drafts in their tracks before they spread throughout a building.  Fan-forced wall and ceiling heaters with an automatic delay feature eliminate cold drafts on start-up and discharge residual heat from the heater body during the shutdown, helping attack drafts at their source, making the best use of available heat and prolonging the life of the heater. Equipped with integrated thermostats To maintain desirable comfort levels, facilities should consider fan-forced wall or ceiling heaters equipped with integrated thermostats or BMS connections for easy adjustment of room temperatures. A hotel’s vestibule, for example, may experience high amounts of foot traffic during check-in and check-out hours. Because fewer people are coming and going outside of these times, the adjustable thermostat feature allows facilities to alter their heating output needs to ensure heat is not misused and temperatures remain comfortable. For commercial fan-forced wall heaters with striking designs and contemporary looks, Berko® and QMark® offer units to match any room’s décor while supplying an appropriate amount of warmth no matter the time of year. Safety First Fan-forced wall or ceiling heaters are built with easily accessible power on/off switches for safety Safety and style go hand-in-hand. While selecting a heater that fits a building’s esthetic is important, opting for a high-quality product that protects against common safety risks should be a top-of-mind priority. Fan-forced wall or ceiling heaters are built with easily accessible power on/off switches for added safety during maintenance. Tamper-proof plugs for thermostat holes prevent unwanted changes to the temperature and keep children and pets from getting into places they shouldn’t.  All fan-forced units also come with thermal overheat protectors that disconnect power in the event of accidental dust or debris blockages to mitigate the risk of injury. Additionally, heaters that include permanently lubricated and enclosed fan motors are shown to have longer lives, require less maintenance and gently administer heat throughout a space. Keep in mind that some heaters are noisier than others, so make sure to choose one powerful enough to negate drafts but quiet enough to prevent disturbances from interrupting daily activities.  Maintaining Warmth and Comfort Drafts bring cold air and a lasting chill into heated spaces every time a door opens, especially during the colder months. To offset the frigidness, consider installing a fan-forced wall or ceiling heater to regain suitable levels of warmth and comfort for all building occupants. Berko and QMark’s commercial fan-forced wall and ceiling heaters provide the strongest, safest sources of heat for those chilly spaces.

The COVID-19 pandemic has significantly impacted how we view indoor air quality and HVAC systems. Consequently, HVAC systems have undergone several improvements in the post-pandemic world. Systems today tend to have better filtration, increased ventilation, and advanced air-cleaning technologies, such as UV-C light and bipolar ionization. We asked our Expert Panel Roundtable: How have HVAC systems improved (including better indoor air quality) in the post-pandemic world?  

Digitalization is the integration of digital technologies into everyday life. In the context of HVAC, digitalization refers to the use of digital technologies to improve the efficiency, performance, and control of heating, ventilation, and air conditioning systems. Considering that digitalization is a major trend relating to HVAC, we asked our Expert Panel Roundtable: How does the digitalization of HVAC enable adaptation to evolving technologies and newer applications?

The HVAC market is a rapidly changing environment on a variety of fronts, from the introduction of new refrigerants to the increasing use of artificial intelligence to the embrace of interconnected systems in the Internet of Things (IoT) environment. We asked our Expert Panel Roundtable: How will the HVAC market change in the next five years?