R-410a

Weil-McLain®, a pioneer in hydronic comfort heating solutions, introduces the ECO™ HP Air-to-Water Heat Pump, a cutting-edge electric heat pump designed for residential and light commercial applications. This new system is a key component of the ECO™ Hybrid Dual-Fuel Hydronic System, combining the efficiency of a heat pump with the reliability of a traditional gas boiler to deliver superior energy-efficient gains, consistent comfort, year-round domestic hot water capabilities and reduced carbon emissions. hybrid dual-fuel hydronic system ECO HP operates efficiently in milder temperatures, seamlessly transitioning to the boiler during cold The ECO HP operates efficiently in milder temperatures, seamlessly transitioning to the boiler during extreme cold to ensure consistent warmth, hot water production and reduced energy consumption year-round. “This hybrid dual-fuel hydronic system is engineered to provide the best of both worlds – utilizing the heat pump’s high efficiency and decarbonization potential while leveraging the boiler’s dependability as a backup when needed,” said Elliott Willey, Director of Product Management & Climate Conscious with Weil-McLain. “By integrating this hybrid system, homeowners can reduce their carbon footprint and increase their overall system efficiency to support a more sustainable future.” integrating the ECO HP within a traditional gas boiler The ECO Hybrid System redefines home heating by integrating the ECO HP within a traditional gas boiler hydronic heating system, providing an adaptable, dual-fuel solution. This setup ensures homes remain warm even in the coldest climates by leveraging the heat pump’s efficiency during milder temperatures and the boiler’s reliability as a backup. The hybrid approach not only extends the life expectancy of both appliances but also offers significant energy savings, making it a budget-friendly and environmentally conscious choice. The ECO Hybrid System Weil-McLain understands that useful installation is crucial for homeowners and contractors Weil-McLain understands that practical installation is crucial for both homeowners and contractors. The ECO Hybrid System is designed for flexibility, allowing for phased installation, which is especially beneficial when replacing a failed boiler in the cold of winter. “We designed the ECO Hybrid System for phased installation, allowing contractors to quickly restore heat with a heat-pump-ready boiler during winter, and add the outdoor heat pump in warmer months to maximize efficiency without interrupting home comfort,” said Willey. Unparalleled Efficiency and Quiet Operation Engineered with noise reduction technology, the ECO HP operates at a quiet sound due to a bionic fan design and enhancements in its twin-rotor compressor. These features make it ideal for residential settings where noise reduction is a priority. Unlike forced-air heating systems that distribute heat through the air, the ECO HP uses hot water in a closed-loop system to provide radiant and convective heat, offering improved indoor air quality by reducing the spread of dust, allergens, and airborne pollutants. This approach enhances comfort and health by maintaining a cleaner indoor environment. Reliable and energy-efficient solution ECO HP is designed to deliver domestic hot water year-round, providing a reliable and energy-efficient In addition to heating, the ECO HP is designed to deliver domestic hot water year-round, providing a reliable and energy-efficient solution for all seasons. This ensures homeowners benefit from a consistent hot water supply while optimizing energy use, even during peak demand periods. As part of the dual-fuel solution, the ECO HP ensures consistent comfort, extends equipment life expectancy and delivers significant energy savings across all climates. Eco-friendly R32 refrigerant The system operates with an eco-friendly R32 refrigerant, offering up to three times greater efficiency compared to traditional heating methods. To optimize these benefits, Weil-McLain has developed the ECO Calc Application Sizing Tool. This innovative tool aids in properly sizing the application by analyzing data on the home’s heating load, heat pump capacity, localized weather data and utility rates and more, ensuring the system performs at its best in every installation.

At the 2025 AHR Expo, Daikin Applied will display a suite of simple, powerful, and sustainable commercial HVAC solutions, all designed to accelerate the path toward a decarbonized future. As a longtime AHR Expo exhibitor and industry pioneer, Daikin’s exhibit features an extensive lineup of heating and cooling technology that enhances indoor comfort while lowering carbon emissions, improving efficiency, and advancing the electrification of heating. Advanced low-GWP refrigerants Daikin Applied’s approach to decarbonization is built on three key pillars “The global demand for decarbonized HVAC systems has grown exponentially,” said Jim Macosko, vice president of product and sustainability solutions at Daikin Applied. “As new climate challenges continue to emerge, Daikin’s comprehensive portfolio of advanced HVAC technologies supports customers at every stage of their decarbonization journey, providing tailored solutions that help build a more sustainable future.” Daikin Applied’s approach to decarbonization is built on three key pillars: advanced low-GWP refrigerants to reduce environmental impact, high-efficiency equipment powered by inverter compressors to optimize energy performance, and electrified heating using heat pump technology to reduce reliance on fossil fuels. Lineup of new low-GWP solutions Daikin Applied will unveil a lineup of new low-GWP solutions, committing to use R-32 in applications that previously used R-410A. As a single-component refrigerant, R-32 boasts a two-thirds lower GWP compared to R-410A, and is easy to top off, recharge and reclaim in the field. Using low-GWP refrigerants like R-32 not only lowers carbon emissions but can also reduce unit footprint while enhancing efficiency and capacity. Daikin’s inverter compressors Daikin’s compressors feature variable-speed permanent magnet motors that optimize energy Daikin has transitioned its entire R-410A portfolio to low-GWP refrigerants, including the Trailblazer AGZ-F, Smart Source Water Source Heat Pumps, and Vertical Self-Contained SWP J-Vintage, all optimized with R-32 to reduce emissions and boost efficiency. Daikin’s inverter compressors feature variable-speed permanent magnet motors that optimize energy efficiency by adjusting motor speed to maintain temperature, rather than cycling on and off. This reduces energy consumption while ensuring consistent, high-performance cooling and heating. Driving Efficiency Daikin Applied recently introduced the Magnitude® WME-D, a next-generation water-cooled centrifugal chiller featuring a two-stage, oil-free compressor and low-GWP R-515B refrigerant. With an optimized compressor-refrigerant combination, the WME-D improves performance for up to 40% more energy savings than traditional fixed-speed compressors. Advancing Electrification Daikin Applied’s heat pump tech is central to its decarbonization efforts, enabling clients to transition Daikin Applied’s heat pump technology is central to its decarbonization efforts, enabling customers to transition away from fossil fuels by eliminating combustion in heating systems and reducing CO2 emissions. The recently expanded Rebel Applied and Rebel rooftop portfolio with air source heat pumps leverages inverter compressors and low-GWP R-32 refrigerant to deliver high efficiency and reliable performance, even in colder climates, ensuring optimal heating and cooling. Advanced heat pump technology AHR Expo attendees can take an exclusive look at Daikin’s latest innovations, including a preview of a new chiller heat pump that combines all three pillars of Daikin’s decarbonization strategy—low-GWP refrigerant, an inverter-driven compressor and advanced heat pump technology. Meet with product experts in Booth 2725 in the West Building to learn more about Daikin Applied’s entire portfolio of commercial HVAC solutions. Daikin Applied is committed to pioneering the HVAC industry toward a sustainable future.

Heat pump adoption in the industrial market is challenging due to the need for high-temperature heat sources in the production process. The Danfoss PSG compressor is ideal for high-temperature industrial heat pumps, enabling the move to electrification and transition from fossil fuels to sustainable heating. Option for electric heating An innovative scroll compressor, the PSG can support heat recovery, process heating and district heating applications that require a high temperature heat source up to 100 degrees Celsius.  By providing industries such as food and beverage production with an option for electric heating that meets their production needs, the PSG can decrease reliance on oil and gas and provide a pathway to decarbonization. Low GWP refrigerants R1234ze and R600a Industrial facilities can replace their fossil fuel-powered boilers with optimized systems built with the PSG Industrial facilities can replace their fossil fuel-powered boilers with optimized systems built with the PSG. The PSG compressor is currently available in two capacities (105 m³/h and 140 m³/h), which can be manifolded together to achieve an even wider range of capacities.  It is designed for use with low GWP refrigerants R1234ze and R600a, further supporting industrial customers in their decarbonization goals. Transition to sustainable heating “The PSG compressor fills an important need in the transition to electric heating,” said Nick Mislak, regional segment marketing director for HVAC at Danfoss Climate Solutions. “Providing a viable option for industrial facilities to adopt heat pumps and reduce or eliminate their reliance on fossil fuels is essential to reaching our climate goals. The PSG is another example of how Danfoss is supporting the transition to sustainable heating through innovative technologies.”

Until a couple of years ago, most of the talk about heat pumps occurred around this time of year, when more than half the planet prepares for an autumn cooldown. These discussions were typically limited to regions that only experienced moderate winters. But as anyone who has recently perused an HVACR trade magazine or website—or participated in an industry webinar, event, or social media conversation—can tell you, the topic of heat pumps is virtually unavoidable. Not only do heat pump discussions now occur year-round, but they’ve also ascended to consistent headline status and transcended the traditional boundaries of moderate climates.  The decarbonization megatrend One might say heat pumps have taken their place on the global stage. If you’re asking why this has happened, the answer requires just three words: the decarbonization megatrend. However, for industry professionals looking to grow their businesses, it’s helpful to gain a deeper understanding of heat pumps—how they work, ways they are currently meeting HVACR needs, and where the technology is headed for next-generation applications. Through this understanding, members of the industry can better forecast customer needs as well as identify opportunities for expanding in both current markets and, potentially, new ones. How heat pumps work—don’t let the name fool you The heat released as the refrigerant condenses is then transferred to interior spaces What heat pumps do and, more specifically, how they do it provides the key as to why they are now being considered a “hero” of decarbonization. The term can be misleading, because “heat pumps” do not generate heat. Because of this, heat pumps are being more widely embraced as the lower-carbon-emission alternative to combustion-based heating technology that uses, for example, fossil fuels.  Instead of creating heat, heat pumps extract heat energy from where it’s not needed and move it to where it is needed. When a heat pump is in heating mode, its refrigerant evaporates as it absorbs heat from the outside. The heat released as the refrigerant condenses is then transferred to interior spaces. In warmer weather, a heat pump kicks into cooling mode and the process is reversed, as heat is extracted inside and released outside. This non-combustion process of moving heat from one place to another provides several potential benefits to society: Heat pumps support the megatrend toward decarbonization. They replace fossil-fuel heating with high-efficiency technology. They can be paired with lower-global-warming-potential (GWP) A2L refrigerants—such as R-454B and R-32—to further increase environmental benefits, while offering similar performance to the legacy R-410A. They offer the ability to tap into alternative energy sources, such as industrial waste heat as well as heat sourced from the air (ambient), ground (geothermal), or lakes/ponds (water). Meeting today’s needs—these aren’t your grandfather’s heat pumps Heat pump technology has been commercially available and in use since the 1950s. Early versions of heat pumps were essentially reversible air conditioning units, and most used traditional refrigerants—like R-22 and, more recently, R-410A. These units performed well and operated safely using lower-toxicity, nonflammable (A1) refrigerants. However, they were known to sometimes struggle at lower ambient temperatures. As often happens in the world of science and technology, challenges drive the search for solutions. Today, we’re seeing innovations that result in efficient, effective cold-climate heat pumps that optimize various components, such as compressors, heat exchangers, expansion valves, and their controls. Thanks to these innovations and others, the U.S. and other countries are experiencing broader heat pump adoption and, in turn, supporting progress toward decarbonization.  Heat pump technology has been commercially available. Increasing heat pump accessibility and viability in more places and spaces is also critical to the HVACR industry’s commitments to the environment—and its need to heed regulations advancing the transition to systems reducing climate impact. Emerging systems use mildly flammable (A2L) refrigerants. They are similar in design to legacy systems and include modifications to mitigate risks associated with the change to A2Ls. Where things are headed—heat pump technology is just getting started Even with the significant advances we’ve seen in colder-climate heat pumps, there is still untapped potential in terms of what the technology can achieve. We can expect to see continued innovation as end-user needs and environmental priorities continue to evolve. Some foreseeable growth areas for heat pumps include: Traditional applications—that is, moderate climates Expansion into nontraditional climates—heating in very cold climates and cooling in hotter regions Domestic water heating, replacing fossil-fuel systems Leveraging a variety of heat sources—geothermal, air-sourced, and water-sourced Harnessing waste heat generated by energy-intensive industrial processes Use of lower-GWP A2L refrigerants System optimization will also drive greater use of lower-GWP A2L refrigerants, such as R-454B Supporting these growth areas will be innovations that optimize high-performance, high-efficiency delivery of extracted heat, using a combination of traditional and new split-ducted, ductless/mini-split, and mono-block technologies. System optimization will also drive greater use of lower-GWP A2L refrigerants, such as R-454B, while limiting the use of highly flammable refrigerants such as R-290. Refrigerant selection will also play an increasingly important role and may offer additional opportunities for application-specific technology. As heat pump applications expand, we can expect to see greater focus on selecting the optimum refrigerant to use as the working fluid. Criteria will weigh system design, operating conditions, and other priorities against key refrigerant properties: Physical—boiling point, vapor pressure, density, and material compatibility Thermodynamic—cooling/heat capacity, energy efficiency, pressure-enthalpy (PH) curves Environmental—ozone depletion potential (ODP) and global warming potential (GWP) Safety and health—flammability and toxicity Conclusion: There’s strong and ample reason to “stay pumped” Over the past several years, members of the HVACR industry have enthusiastically embraced new heat pump solutions. Evolving heat pump technology and expanding applications will continue as the industry progresses along the path of more energy-efficient, lower-GWP, and more sustainable new-generation and next-generation heating and cooling. This, coupled engineering and science that leverages untapped heat pump potential, will mean more opportunities for HVACR contractors to deliver new options to the markets they serve. With a strong understanding of their customers’ individual heating and cooling needs, climate challenges, and sustainability goals, contractors can confidently select the best heat-pump refrigerant solution.

From temperate climates that reach mid-90 F in June and mild winters allowing people to be outdoors without jackets to the “May flowers” that bloom in early March, it’s evident that society is experiencing World Refrigeration Day’s 2024 theme: “Temperature matters.” In addition to driving climate change, global warming is driving changes in how people live and how industries adapt and innovate to support new dynamics. This is especially true for the HVACR Industry. Over the past several years, contractors have been busy installing and servicing cooling systems in climate zones that historically haven’t needed them. There’s a major focus on achieving more energy efficiency and lower water consumption in cooling the world’s escalating number of data centers.  Impact on HVACR Industry There’s also increased demand to conserve water in cooling towers and/or adiabatic condensers and for elevated indoor environmental quality (IEQ) to improve health and productivity. A few examples show how rising global temperatures are impacting the HVACR industry These few examples demonstrate how rising global temperatures are impacting the HVACR industry. Sharing a huge part of the spotlight of industry solutions are refrigerants, which now need to work harder than ever to keep people comfortable and foods, beverages, and pharmaceuticals at proper temperatures. And they must do so without contributing to global warming and other environmental concerns. Refrigerant priority #1: lower GWP Assessing refrigerants for their ability to address climate change concerns starts with their global warming potential (GWP). That’s why attention has turned to A2Ls, which offer significantly lower GWP than legacy refrigerants. The three “big players” in the A2L arena—R-454A, R-454B, and R-454C—are now being selected for new-generation equipment solutions in various HVACR applications. A look at GWP reduction in a sampling of these applications tells the story: R-454A and R-454C can provide a 94% to 96% reduction in GWP as an alternative for R-404A, while offering similar performance Applications that historically would use a new R-410A unit can transition to R-454B, resulting in a 77% reduction in GWP. The industry is also choosing HFO-1234yf, an A2L currently used in air conditioners in 95 million vehicles on U.S. roads. HFO-1234yf has an AR4 GWP of 4 and is also used as a blend component in Chemours A1 and A2L products. Although A2Ls are for new equipment only, lower-GWP A1 refrigerant solutions can help in retrofits. For most applications using a higher-GWP HFC in an existing system, there’s likely a lower-GWP HFC/HFO blend for retrofit applications Other refrigerant priorities Of course, the value of a refrigerant is based on more than just low GWP Of course, the value of a refrigerant is based on more than just low GWP. The true innovation in refrigerant development lies in striking the optimal balance between environmental impact and performance for a diversity of applications. For example, after developing what are now considered three major players in the future of refrigerants—Chemours Opteon™ XL40 (R-454A), Opteon™ XL41 (R-454B), and Opteon™ XL20 (R-454C)—our chemists remain in the labs and work with pioneering industry partners to lower GWP even more, without compromising other properties. It’s important to consider how well a refrigerant addresses several key factors: Low GWP and zero ozone depletion potential (ODP) Reduced energy consumption Circularity—the ability to be recovered, recycled, and reclaimed Lower operating costs over the lifetime of equipment Safety—for everyone from technicians to end users Overall performance—measured by capacity, reliability, and efficiency Can be serviced by a large existing workforce of trained technicians Responsible manufacturing focused on reducing carbon emissions Availability and supply chain strength A2L refrigerants have been designed with these factors in mind, raising the bar in terms of performance and support for environmental priorities. Addressing climate zone challenges In addition to solutions designed for today’s many residential, commercial, and industrial cooling and refrigeration applications, the industry needs a full toolbox of systems, components, and refrigerants to meet—in a highly efficient manner—the challenges of cooling and heating in various climate zones. These range from Zone 1, which is very hot, humid, and dry, to the subarctic Zone 8 ASHRAE divides the U.S. into eight major climate zones. These range from Zone 1, which is very hot, humid, and dry, to the subarctic Zone 8. In between these two extremes, we find various levels of heat/cold, humidity, and dryness. These climate zones provide system engineers with guidance for choosing the best designs—including refrigerant selection—so that each zone can be equipped with the appropriate system, optimized for year-round capacity, efficiency, reliability, and more. New-generation heat pumps For example, the high heat and humidity of a tropical climate put heavy demand on cooling equipment—from air conditioners to refrigeration systems. These cooling systems are likely to run most of the year, so choosing a highly energy-efficient option is paramount. By contrast, we have zones with overall colder ambient temperatures. Heat pumps must be properly sized to ensure occupant comfort. Cooling systems in these climates have limited use during the year, but they must perform reliably when needed. In climates where heating buildings take priority over cooling them, we’re finding a significant transition from traditional AC-only units to new-generation heat pumps. Heat pumps must be properly sized to ensure occupant comfort and keep the heat pump from “struggling” to control humidity when operated in AC mode. Choosing refrigerant solutions There is no question the world’s temperature is on the rise. According to the National Oceanic and Atmospheric Administration, since 1982, the rate of the Earth’s warming has risen approximately 0.36 F (0.20°C) per decade—more than three times the average rate of all previous decades measured. The 10 warmest years on record all occurred in the past decade. And 2023 was the warmest year on record for North America, South America, and Africa, as well as the second warmest for Europe. As climate change continues to warm up winters and heat up summers, refrigerants will play an increasingly important role in “cooling down” people and products and helping to reduce the impact that industry and society have on “heating up” the planet. Everyone can do their part by understanding that temperature matters, then choosing refrigerant solutions that have lower GWP, support other environmental needs, and offer the right combination of performance attributes for a given climate zone.

By now, most of the HVACR industry is familiar with the HFC phasedown portion of the U.S. EPA American Innovation and Manufacturing (AIM) Act that was signed in 2020 and finalized in 2021. The first phasedowns started Jan. 1, 2020, with a 10% reduction in HFC refrigerant production, importation, and consumption, and was followed by an additional 30% reduction that began Jan. 1, 2024. As these regulations work to achieve a total 85% HFC phasedown from historic baseline levels by 2036, Technology transition rules will start to impact the industry as early as Jan. 1, 2025. Technology Transitions Often referred to as “sector controls,” Technology Transitions are the second of three main sections of the AIM Act. They focus on limiting the use of HFC refrigerants and supporting A2L adoption by calling for global warming potential (GWP) limits for refrigerants based on specific applications, including refrigeration, air conditioning, heat pumps, and more.  three new-generation refrigerants Three new-generation refrigerants help create a clear path to making refrigerant transitions that comply with the rules Although the Technology Transitions program is rather complex (providing rules for which refrigerants or GWP limits apply for which applications and when) focusing on just three new-generation refrigerants helps create a clear path to making refrigerant transitions that comply with the rules and support more sustainable operations. While several new refrigerants have been developed recently, many of the HVACR industry’s applications and equipment can be covered by focusing on these three refrigerants: R-454A, R-454B, and R-454C.   R-454A (AR4 GWP = 239)   Developed to replace legacy refrigerants such as R-404A, R-454A is an HFO blend offering zero ozone depletion potential (ODP) and a GWP of 239, lower than R-404A’s GWP of 3,920. R-454A is classified as a mildly flammable, low-toxicity A2L, suitable for low- and medium-temperature commercial refrigeration applications. The AIM Act Technology Transitions set a maximum GWP of 300 for several types of systems with charge limits up to 200 lbs., such as remote condensing units for food retail walk-ins and cascade systems. These systems are ideal for R-454A, given the refrigerant’s improved performance and reduced GWP compared with R-404A.  R-454B (AR4 GWP = 467)  Regarding refrigerants of the future at work today, R-454B is likely the one you’ve heard the most about. Establishing itself as the predominant replacement for R-410A in new air conditioners and chillers, R-454B started being used earlier this year. R-454B will be used in most equipment manufactured after Dec. 31, 2024. Offering a GWP of 467 compared with R-410A’s GWP of 2,088 (a 78% reduction), R-454B has been selected by most air conditioning and heat pump manufacturers worldwide.   R-454C (AR4 GWP = 148)  R-454C, with a GWP of 148, offers compliance with AIM Act regulations and is suitable for new systems R-454C, with a GWP of 148, offers compliance with AIM Act regulations and is suitable for new systems in applications requiring a GWP of <150. Two examples are small standalone units and larger system architectures with a charge size of >200 lbs. being developed for supermarkets.   For Use in New Equipment Only  R-454A, R-454B, and R-454C are HFO-blend refrigerants and have slightly different R-32 and R-1234yf components percentages. All three are individually optimized for peak performance and carry an A2L mild flammability safety classification. As A2Ls, these refrigerants can only be used in new equipment designed to mitigate leaks and flammability risks and must be installed according to OEM instructions and in compliance with applicable safety standards and building codes.  Easy as A, B, C  In anticipation of AIM Act regulations and the continued adoption of R-454A, R-454B, and R-454C, the HVACR industry has ramped up A2L training and engineering support significantly over the past few years. So, while sorting through the regulatory changes and becoming familiar with the new refrigerant options may seem complex, focusing on these three A2Ls will hopefully make your refrigeration transition, and your business’s future growth as easy as A, B, C.  

Integrating technology, data, and a nationwide network of contractors and distribution centers, Motili seeks to transform how HVAC services are delivered. With a focus on sustainability, energy efficiency, and cost savings, Motili helps property owners and contractors achieve their goals while promoting a greener future for the HVAC industry.  motili expansion Motili meets various industry needs, whether a property manager looking for streamlined HVAC solutions or a contractor seeking more jobs.  Motili started in upstate New York as One-HVAC, a marketing call center connecting contractors with homeowners. Born after the housing market crash in 2008, Motili expanded nationwide; in 2015, the headquarters moved to Denver, Colorado.   energy-efficient technologies Motili is equipped to provide high-quality, eco-friendly equipment and services Motili was acquired by Daikin in 2017 and supports some of the largest national accounts with HVAC services across industries such as single-family, commercial, military, and big-box retail. With the growing demand for sustainable, energy-efficient technologies, Motili is equipped to provide high-quality, eco-friendly equipment and services.   Growing HVAC businesses “We help HVAC contractors grow their business and keep their crews active,” says Matthew Sallee, Motili’s VP of National Accounts, and Marketing. “By providing them with sold jobs from our customers, we eliminate the need for bidding and costly marketing or advertising. We even offer job opportunities during the shoulder season to keep crews working year-round.”  advanced technology platform The advanced technology platform enables tracking of HVAC system details such as age, condition, and efficiency. Proactively, Motili can help customers identify potential system failures through preventative maintenance and planned replacement projects across portfolios, thus reducing costly downtime and extending equipment lifespan.   Reactively, the platform assists with unplanned repairs and replacements by dispatching jobs to a network of HVAC contractors, who receive job notifications via a mobile app. They also help customers select the best equipment for their needs, ensuring they get the most energy-efficient, reliable, and cost-effective system possible.  Customer benefits Customers benefit from seamless HVAC solutions, covering everything from unexpected repairs and replacements Motili connects property management customers across the country with a network of contractors who install high-efficiency equipment from Goodman and Daikin, powered by Motili’s technology platform. Customers benefit from seamless HVAC solutions, covering everything from unexpected repairs and replacements to large-scale projects with installations tailored to meet the needs of their entire portfolio.   preventative maintenance “We help manage nationwide portfolios with a focus on preventative maintenance and sustainable products, ensuring consistent comfort for tenants and cost savings for property owners,” says Sallee.  Data is crucial for property owners and managers to make informed decisions about HVAC systems. Motili enables property owners to leverage system data for proactive maintenance and capital planning.  key metrics “By aggregating and analyzing key metrics like system age, efficiency, and performance, we help property owners and managers identify inefficiencies and plan cost-effective solutions,” says Sallee. This allows them to prioritize investments and plan maintenance schedules with confidence, leading to improved system performance, reduced operational costs, and better long-term management of their HVAC assets.  job flexibility Contractors can optimize their schedules, keep their teams active year-round, and expand their business HVAC contractors can grow their business by partnering with Motili, gaining access to sold jobs they would not typically reach. With the mobile app, contractors benefit from a steady stream of jobs, removing the need for bidding and costly marketing efforts. With quick payments and the flexibility to choose jobs, contractors can optimize their schedules, keep their teams active year-round, and expand their business without the inefficiencies of traditional lead generation methods.   HVAC efficiency goals Leveraging technology, Motili seeks to help customers achieve their HVAC efficiency goals while reducing costs. Several key technologies industrywide are advancing the HVAC industry toward net zero: inverter technology, heat pumps, and low-GWP refrigerants. Daikin’s energy-saving inverter technology minimizes energy fluctuations, delivering consistent comfort and lower energy bills. When paired with a modern heat pump, this system provides efficient, year-round comfort using minimal electricity, transferring heat rather than generating it without burning fossil fuels.  R-32 refrigerant Finally, R-32 refrigerant has a low environmental impact. Compared to the refrigerants widely used such as R-22 and R-410A, R-32 has a global warming potential (GWP) that is one-third lower. Together, these innovations create cost-effective, reliable, and energy-efficient systems.

The flammability of the new class of low-GWP refrigerants is a source of misunderstanding and unnecessary anxiety among contractors who will be working with the newer materials, which must be used by HVAC equipment manufactured beginning Jan. 1, 2025.   A2L refrigerants The newer A2L refrigerants, specifically R-454B, perform similarly to previously used materials such as R-410A, and flammability is so mild as to be almost negligible. What’s needed is more education to make contractors more comfortable with the newer refrigerants. And sensible precautions, of course.   flammability of refrigerants Among the trainers educating the industry on the benefits of, and needed precautions for, the new materials is Don Gillis, Technical Trainer of Chemours.   “The flammability part of it is the elephant in the room,” says Gillis. “Our training seeks to remove the fear of the unknown and to get ahead of what the expectations are.”  Don Gillis experience At Chemours, he is applying his real-world experience to address the practical aspects of the refrigerant transition Gillis’s background includes more than 32 years of experience in the industry, 24 of which were on a service truck. Before coming to Chemours, he was the Senior Technical Trainer for Copeland compressors where he helped to train thousands of contractors across North America.  At Chemours, he is applying his real-world experience to address the practical aspects of the refrigerant transition in hundreds of training sessions this year.   peculiarities and similarities of new refrigerants “Change is now coming so fast that technicians are struggling to keep up,” says Gillis. “We need more education, not just about the differences in the new refrigerants but also about the similarities. We need to understand the peculiarities and the similarities of new refrigerants compared to what we used in the past.”   Features of A2L refrigerants The refrigerants are safe when handled properly, offer lower toxicity, and have been used effectively around the world Working with A2L refrigerants such as Opteon XL41 (R-454B) is similar to working with R-410A. For R-454B systems, the installation and service procedures are similar. Moreover, the best practices that technicians have used for years remain applicable with A2Ls. These refrigerants are safe when handled properly, offer lower toxicity, and have been used effectively around the world to increase efficiency and reduce emissions.  When working with R-454B, processes that were once described as good practice will be required. These processes include purging a line with nitrogen to remove any residual refrigerant, testing lines under pressure for 60 minutes, and documenting the results.  training sessions Gillis is seeing higher-than-expected attendance at his training sessions this year, with actual attendance sometimes doubling what was expected. There are classes with more than 100 in attendance, even 200 and 300 in some cases. While most of the training is geared toward contractors, distributor training is similar, ensuring that the “counter people” speak the same language as their customers when it comes to the transition.   Urgency due to transition “We are not having an issue of people not coming to training,” says Gillis.  “I think right now there is a new urgency because [the transition] is happening. Dealers and distributors are telling them the new equipment is coming out, and they are peeking in to see what the hubbub is all about. We want everyone to get better. The more knowledge the better.”   R-454B refrigerant availability All equipment manufactured or imported beginning in 2025 will use newer refrigerants New equipment that uses R-454B refrigerant will be on the market within weeks. At least three original equipment manufacturers (OEMs) say they will have equipment out by the end of the first quarter. All equipment manufactured or imported beginning in 2025 will use newer refrigerants.  Misinformation Misinformation is a problem as the refrigerant transition looms, says Gillis. For example, 50 to 60% of attendees at a recent training session were still under the impression that the new refrigerants contain hydrocarbons such as propane. Not true. The flammability of A2L refrigerants more closely resembles the refrigerants currently in use than materials at the far end of the flammability spectrum.  Fact-checking and myth-busting A2L refrigerants have already been used safely for years in automobiles, window air conditioners, PTAC systems, and dehumidifiers.  “I’m all about fact-checking and myth-busting,” says Gillis. “You don’t know what you don’t know.” Some of the misunderstandings may have come from earlier messaging in the industry that addressed A2Ls along with other “flammable refrigerants” such as propane, thus confusing the matter.  Key points Key points Gillis seeks to communicate in his training sessions include:  ∙There are no hydrocarbons or propane in A2L refrigerants.  ∙Although similar to previous refrigerants, an A2L refrigerant cannot be used in an existing unit.   ∙No extra ventilation or placards are required for trucks carrying A2L refrigerants; tanks of Chemours’ Opteon XL41 (R-454B) refrigerant can be transported on their sides.   ∙The 440-pound maximum allowable refrigerant truck load stays in place.  ∙Safety and handling requirements and good installation and service practices are required.  ∙Factors such as servicing, installation, safety, pressure, temperatures, and oils are the same for R-454B as for R-410A.   To access educational resources, contractors and others may visit Opteon.com to request training by webinar, remotely, or in person. There are also YouTube videos available on demand.   training certificate Chemours provides a 2-hour certificate of attendance, with a number enabling “credit” with NATE, ACCA Although there is currently no EPA requirement for special training on the new refrigerants, the jury is out on whether a requirement might be forthcoming. There currently are also no federal or state certifications. Chemours provides a 2-hour certificate of attendance, with a number enabling “credit” with North American Technician Excellence (NATE), Air Conditioning Contractors of America (ACCA), or whomever.   high-GWP refrigerants The U.S. AIM Act will limit the amount of high-GWP refrigerants that can be made in coming years. As the manufacture of legacy refrigerants is phased out over time, existing legacy systems will need to use more reclaimed/recovered refrigerants from existing systems. Fortunately, the processes of reclamation are improving, and even refrigerant mixtures will still have value in the market moving forward. {##Poll1709537519 - What is your preferred format when it comes to training on new aspects of HVAC equipment and installation?##}

AHR Expo 2024 was abuzz with activity, befitting a dynamic industry in the throes of change.  Industry developments such as electrification and the refrigerant transition render business opportunities on the AHR Expo show floor, where exhibitors display a determination to meet the challenges and thrive in the process. Walking from booth to booth during the three-day show in Chicago, I saw the best the HVAC industry has to offer, up close and personal. Innovation and adaptability are the watchwords as the industry journeys into 2024 and beyond. Refrigerant Transition Top of Mind  Patented R-454B refrigerant enables a simpler transition without redesigning equipment The technology transition is well underway for OEMs seeking to meet a pending AIM Act deadline at the end of the year. OEMs are choosing to embrace either R-32 or R454-B refrigerant to replace legacy R-410A, which is being phased out. Patented R-454B refrigerant enables a simpler transition without redesigning equipment, while R-32 offers advantages such as higher capacity, higher efficiency, and easier cradle-to-cradle management. Arkema Arkema is the only producer of R-32 refrigerant in the United States. The newer refrigerant is being embraced as HVAC OEMs seek to meet the deadline of Jan. 1, 2025, to use lower-GWP (global warming potential) refrigerants in their products. The technology transition is just part of the AIM Act implementation that will also limit allocation and require refrigerant management. Chemours Chemours is a manufacturer of R-454A, R-454B, and R-454C refrigerants. At AHR, they presented hourly education sessions on a variety of subjects. The refrigerant transition will impact everyone in the industry, including refrigerant producers, equipment manufacturers, contractors, and end users. R-454B refrigerant provides identical performance in HVAC systems compared to the previous refrigerant (R-410A). There is less need to redesign equipment; just adding sensors for leak mitigation can address the mild flammability of A2L refrigerants. Because of the 2025 deadline, 2024 will be the “year of new products” in the HVAC market. OEMs pioneering Innovation  Carrier and others are offering smaller footprints, seeking to meet environmental targets Innovation in the HVAC market is led by companies such as Carrier, which has introduced 100 new products each year for the past eight years. Carrier and others are offering smaller footprints, seeking to meet environmental targets, and providing flexibility for customers. New products include the AquaSnap 30RC air-cooled chiller and the AquaEdge 19MV chiller with low GWP refrigerant to meet pending regulatory requirements.  Copeland Copeland, recently divested from Emerson, also emphasizes innovation, including 12 research and development (R&D) facilities, 1,700 engineers, and more than 3,000 patents. At a press conference at AHR Expo, the 100-year-old company announced it is a “new” company owned by Blackstone Private Equity.  Products featured Among the featured products at AHR are Copeland’s oil-free centrifugal compressor with Aero-lift bearing technology; and Copeland’s CC200 case controller, specifically designed to handle the unique challenges of the current retail grocery refrigeration environments. Copeland also pledges to play a role in educating the market about new trends and the transition to new refrigerants.  Emphasizing a Smaller Footprint  Trailblazer AGZ-F is an R-32 air-cooled scroll chiller that delivers 10% greater capacity and efficiency Daikin Daikin highlights the Atmosphera, a single-zone ductless split system (using R-32) that can reduce carbon emissions by 80% (compared to R-410A). Also, Trailblazer AGZ-F is an R-32 air-cooled scroll chiller that delivers 10% greater capacity and efficiency. Products emphasize a smaller footprint and less weight than their predecessors. Rebel Applied is a packaged rooftop unit that continually adjusts operation to address the building load, consuming less energy. Trailblazer HP is an air-to-water heat pump chiller with a reversing function that allows the product to switch between cooling and heating based on temperature requirements.  Friedrich Air Conditioning Friedrich Air Conditioning features the Breeze universally flexible inverter heat pump, a ducted mini-split for upgrading traditional equipment. It works with any furnace or air handler, has side discharge, is 40% smaller, and is cold weather capable to minus 13. Friedrich's new Vert-I-Pak is a line of M1-compliant single package Vertical Heat Pumps (available in 9K, 12K, 18K, and 24K Btu), supporting decarbonization efforts with heat pump operation down to 10°F. High Efficiency for Commercial and Residential Johnson Controls Johnson Controls exhibits their highly efficient residential and commercial HVAC solutions designed for Department of Energy (DOE) 2023 compliance and helping customers achieve Net Zero goals through decarbonization. On display was the York High-Efficiency 18 SEER2 Side-Discharge Heat Pump with up to 30% smaller footprint than vertical-discharge equipment. Johnson Controls-Hitachi Air Conditioning's Aircore 700 single split system is aimed at light commercial and residential. Midea Their 3-ton model achieved 118% of rated capacity heating output at minus 15 degrees Fahrenheit Midea, known for selling consumer products, has kept a low profile in the professional sector, selling products that are either OEMed for Carrier or private-labeled by a contractor company. Seeking to promote the Midea brand, the Chinese company is staking its claim on the trade market with an emphasis on performance: The company exceeded performance in the Department of Energy’s “ColdClimate Heat Pump Challenge:” Their 3-ton model achieved 118% of rated capacity heating output at minus 15 degrees Fahrenheit. Heat pump awareness Results of a survey conducted by Midea show that more than half of homeowners are not fully aware of heat pumps and their function. Awareness lags among contractors, too: 70% of contractors indicate they do not know that the current’s advanced heat pumps can generate 100% heat output to a minimum temperature of minus 4 F. Wide Selection of New Products Mitsubishi Electric Trane HVAC US Mitsubishi Electric Trane HVAC US emphasizes all-electric heat pump solutions. The Deluxe Wall-mounted H2i sumo System connects with an outdoor unit, and the intelli-HEAT dual fuel system can determine the best source of heat – electric or gas – on cold days. Among commercial products, Heat2OHeat Pump Water Heaters are designed to produce high-volume domestic hot water for commercial facilities in any climate. LG Electronics LG Electronics’ booth includes a wide product range, including advanced heating, ventilating, air conditioning LG Electronics’ booth includes a wide product range, including advanced heating, ventilating, air conditioning, and building management solutions for residential and commercial applications. Home electrification products include the LG R32 Air-to-Water Heat Pump Monobloc system; the LG Inverter Heat Pump Water Heater the LG Electronics Home 8 Energy Storage System, and ThinQ, LG’s mobile app. LG Art Cool Gallery multi-zone wall-mount indoor unit The LG Art Cool Gallery multi-zone wall-mount indoor unit features a customizable picture frame that doubles as a cooling and heating vent. Also, LG’s Medium and High-Temperature Hydro Kit Systems use a refrigerant-to-water heat exchanger to produce chilled or heated water. LG’s Split Compact M3 DOAS with Multi V S is suited to light commercial use where single-phase power is available and as an HVAC solution for outdoor air treatment. Easier Access for Technicians  Rheem Manufacturing New equipment at the Rheem Manufacturing booth at AHR Expo includes true multi-zone operation, smaller footprints, lighter weights, and components that are positioned for easy access by technicians. An LED in the control cabinet displays a fault code that identifies the problem to service technicians. The Resolute and Renaissance lines are commercially packaged heat pump units. The company is emphasizing the transition from R-410A to R-454B refrigerant by the end of 2024. Aeroseal Whether a new install or a retrofit, the product saves energy, saves money, and keeps customers compliant Aeroseal seals ducts by spraying a vinyl acetate polymer substance to increase HVAC efficiency. Whether a new install or a retrofit, the product saves energy, saves money, and keeps customers compliant, and a 30% tax deduction is available through the U.S. Inflation Reduction Act (IRA).  Airzone Airzone is a Spanish company that controls inverters and VRFs (variable refrigerant flow units). Their communication gateway controller incorporates protocols from various manufacturers, and the Easyzone is an easy-to-install zoning system.  Infinitum Infinitum manufactures a motor system that leverages a printed circuit board as a stator, making the motor system lighter weight and also smaller, quieter, and more efficient. The Aircore EC uses a standard printed circuit board manufacturing process to eliminate bearings. The component is used in blowers by OEMs Lau, Acme, Canarm, and Peerless, whose products are displayed at the booth.  Bell & Gossett Bell & Gossett debuts its line of smart, connected products designed to improve sustainability Bell & Gossett, a Xylem brand, debuts its line of smart, connected products designed to improve the sustainability of commercial buildings and reduce complexity in the design process. Combining pumps and smart motors are the e-1510 end-suction pump, e-80 vertical in-line pump, and TECHNOFORCE e-HV packaged booster system.  NIBCO Simplifying the job of an HVAC installer is the PressACR copper press connection system from NIBCO, which connects copper pipes without brazing, which involves soldering and high temperatures, thus a fire hazard. The patent-pending groove design and crimp pattern support the higher-pressure requirement of an HVACR system. Pipes are pressed together using PressACR jaws and adapter jaws in a variety of sizes. NIBCO also displayed its Webstone brand of residential and commercial valves.  Control Products Provide Data  Resideo Resideo displayed home system products, including the Honeywell Home T10+ thermostat with RedLINK 3.0; sensors enable temperature balancing for hot and cold spots. Pro-IQ Services provides software tools designed for the connected home, including insights on heating, cooling, water, and indoor air quality devices to help contractors track customers. Professional-grade water damage prevention, the First Alert L2 WiFi Water Sensor and Switch provide alarms if there is a water leak.  Schneider Electric The EcoStruxure Building Operation system is open system software for building and facility management Schneider Electric seeks to be “digital partners for our customers,” working with Fortune 500 companies seeking to achieve ESG (environment, social and corporate governance) goals. They help customers establish where they are currently vis-à-vis their goals and then deploy science-based key performance indicators (KPIs) to direct them to where they want to be. The EcoStruxure Building Operation system is open system software for building and facility management, including two products for the small and medium building (SMB) market. Energy measurement Schneider measures energy usage through power meters, indoor air quality, and energy spent to achieve efficiency, compiling data according to what the customer wants to achieve. They sell through a national sales team, direct branch business (20 branches), and 200 system integrators (EcoXperts). Their customers include QSR (quick-service restaurant chains) that control climate centrally with data compiled in the cloud.  Siemens Siemens displays solutions for smart, adaptable buildings for a sustainable tomorrow, including the Building X system and the Sustainability Manager application, providing an understanding of a building’s performance and tracking it against sustainability and compliance targets. The Building X Lifecycle Twin tracks operational building performance via a “digital twin,” providing an augmented reality (AR) headset through which one can view equipment with information superimposed on the screen. Uponor  Uponor seeks to leverage the capital cost of heating systems to deliver heating and hot water. They make pipes and connectors and other technologies, including the AuqaPort, which improves water quality and energy savings in domestic hot water (DHW) applications. They seek to future-proof buildings by combining energy efficiency and comfort. Water recirculates and provides hot water on demand using 40% less piping. A “radiant roll-out mat” is preconfigured piping that can be rolled out to simplify installation. 

Johnston County Public Schools, located in Smithfield, North Carolina, chose Carrier to improve energy efficiency and comfort at five schools. Carrier is a part of Carrier Global Corporation, a global pioneer in intelligent climate and energy solutions. AquaSnap® 30RB Johnston County Public Schools (JCPS), located in one of the nation’s fastest-growing counties, is the seventh-largest school district in the state. JCPS used money from the U.S. Department of Education’s Elementary and Secondary School Emergency Relief (ESSER) Fund to replace a dozen chillers. The school district selected Carrier’s AquaSnap® 30RB, an air-cooled liquid chiller offering an effective all-in-one package that is easy to install and maintain. New Equipment Replaced Old Chillers The schools are in North Carolina’s fastest-growing county with 5,000 students enrolled at the five schools The new equipment replaced chillers that were between 20 and 25 years old at Cleveland Elementary, West Clayton Elementary, and Clayton High in Clayton; McGee’s Crossroads Elementary in Angier; and Glendale-Kenly Elementary in Kenly. According to the latest census data, the schools are in North Carolina’s fastest-growing county with 5,000 students enrolled at the five schools and are part of a larger school system with more than 37,000 students in 48 schools. On-Site Training For Staff In addition to the startup of the chillers, Carrier also provided on-site training for the school system’s maintenance staff ahead of the new school year. “Johnston County Public Schools appreciates that Carrier’s AquaSnap Greenspeed intelligence technology provides best-in-class part-load efficiency with quiet part-load operation,” said Philip Samartino, Sales Specialist, Carrier. Shell And Tube Evaporator Philip Samartino adds, “The school district needed the reliability of the aluminum fin copper tube condenser coils and simplicity of the scroll compressor technology to handle compressor repairs in-house. Many schools also have older piping infrastructure so they preferred the shell and tube evaporator as it is less susceptible to fouling and clogging up from dirty piping systems.” AquaSnap 30RB features In addition to Greenspeed® intelligence, the AquaSnap 30RB features a rotary scroll compressor, Puron® refrigerant, a quiet AeroAcoustic™ fan system, easy to use ComfortLink™ controls, microchannel condenser coil technology, and high-efficiency variable condenser fans. “Carrier is working with school districts nationwide to implement layered HVAC replacement and retrofit solutions that improve learning environments,” said Meredith Emmerich, Vice President, of North America Commercial HVAC, Carrier. Meredith Emmerich adds, “With solutions tailored to each school’s needs, Carrier is committed to helping foster the long-term well-being of students and staff and encourage the use of ESSER funds to make critical improvements that will impact generations of students.”

The well-known Italian brand, Big Mamma Restaurant Group, has recently transformed an old four story bank into a striking new restaurant, Jacuzzi, in the heart of High Street Kensington, West London, United Kingdom (UK). In keeping with the grand design of this new ‘pleasure palazzo’, the interior environment needed to offer ultimate comfort and to help create a memorable and luxurious dining experience. Summit Design specified, designed and installed the comprehensive new heating and cooling system, utilizing two 45kW Panasonic 3-pipe ECOi EX MF3 units with nanoe X technology. Panasonic 3-pipe ECOi EX MF3 units installed The Big Mamma Group selected the abandoned old bank building on Kensington High Street The Big Mamma Group selected the abandoned old bank building on Kensington High Street, for its fourth restaurant in London – Jacuzzi, a luxurious 170-seat Italian dining experience. Be-decked with high end Italian treasures and decadent interior design, the site covers four floors, including a Sicilian mezzanine floor with a retractable roof opening out to the bustle of High Street Kensington. Transforming the old historic bank building to a fully functional and fit for purpose restaurant required extensive renovations, including an entirely new heating, cooling and hot water system. To service the 4,000 sq. ft building, Jacuzzi needed a high-capacity performance and energy efficient solution, providing heating and cooling with accurate climate control and ultimate comfort.  Panasonic 45kW 3-pipe ECOi EX MF3 series With Summit Design’s in-depth understanding and knowledge of heating and cooling, the company specified two Panasonic 45kW 3-pipe ECOi EX MF3 series with nanoe X and with a range of indoor units including adaptive ducted, 4-way cassettes, ceiling suspended, floor mounted, wall mounted and slim ducted units. “The Panasonic ECOi EX series is one of the most advanced VRF systems currently on the market, offering not only high performance for simultaneous heating and cooling but also sophisticated installation,” says Dan Sparling of Summit Designs, adding “The solution is ideal for commercial applications having enough capacity to run the energy efficient system for the entire building.” Dan Sparling adds, “Furthermore, the wide selection of indoor units that the Panasonic range offers meant that we could adapt the system design to select the best and most appropriate indoor units, ensuring best choice for each space. It was very important for the heating, cooling and ventilation system to blend seamlessly into the interior design, so as to not distract in any away from the impressive diner experience and general ambience of this high-end restaurant.” Powerful performance for both heating and cooling The Panasonic ECOi EX MF3 offers powerful performance for both heating and cooling The Panasonic ECOi EX MF3 offers powerful performance for both heating and cooling. Designed with a twin rotary inverter compressor, the system is highly energy efficient even in extreme ambient temperatures of say 43 degree C and continue to cool, even when the outside temperature reaches a maximum of 52 degree C, with a high SEER of 3.49 and SCOP of 4.17. The optimized energy consumption was enhanced by the addition of the heat recovery box, which was able to connect multiple indoor units with a single box. The heat exchanger captures the waste heat from the cooling operation and is able to redirect it using the 3-pipe system to areas requiring heating. This capability allows the system to heat and cool multiple areas simultaneously, allowing for greater independent climate control across the four floors and flexibility in meeting a comfortable climate for all. Panasonic system offers flexibility The installation at the large Jacuzzi property was made easier by the flexibility of the Panasonic system. The units provide up to 1000 m of piping and up to 30 m height difference between the indoor units, meaning the system was able to extend its reach across all four floors with ease. The ECOi EX MF3 system provides easy to use and effective temperature and humidity controls, has a newly designed fan for optimized airflow, and customizable settings that can be tailored to suit the needs of the building. Panasonic ECOi units come as standard with nanoe X The Panasonic ECOi units now all come as standard with nanoe X technology" “The Panasonic ECOi units now all come as standard with nanoe X technology, a great benefit that really adds value, especially to a luxury dining experience like the new Jacuzzi restaurant,” said Rachel Wales, Regional Sales Manager for Panasonic. Rachel Wales adds, “The nanoe X technology inhibits the growth of harmful bacteria, viruses, and other airborne pollutants. With nanoe X, the system can reduce unpleasant odors, tackle mold and allergens and even help keep hard and soft surfaces clean, all of which culminate in creating a better indoor air quality and enhancing the experience for staff and guests alike.” Quick and convenient installation The Panasonic system was able to be installed quickly without any problems, helping deliver the opening of the new restaurant on time. Dan Sparling stated, “We are so pleased with the operation of the system so far and are assured that staff and guests of the restaurant are kept comfortable throughout their experience.”

High-performance Toshiba heating and cooling equipment has been used in combination with a solar photovoltaic (PV) and battery storage system as part of a project to help future-proof a five-bedroom home in Cheshire. Toshiba Carrier UK Ltd (TCUK) is part of Carrier Global Corporation, the global provider of healthy, safe, sustainable, and intelligent building and cold chain solutions. Toshiba ESTIA air-to-water heat pumps Two 11kW Toshiba ESTIA air-to-water heat pumps operating on lower global warming potential (GWP) refrigerant R-32 were installed at the 5,500ft2 property, alongside two Toshiba MiNi VRF systems. The Toshiba solution replaced an inefficient heating system and is supported by a 16kW solar PV installation plus 11kW of battery storage and measures including triple-glazing. Energy-neutral outdoor and indoor units  Homeowner and renewables consultant - Dave Meseck says the property is “energy-neutral” during the summer months, with generated and stored energy offsetting electricity consumed from the grid.  One of the ESTIA systems serves around 90m2 of underfloor heating in the open-plan kitchen and dining area, while the other provides hot water and heats the upstairs radiators and towel rails from a supplied 300-liter cylinder. The ESTIA indoor units include a 3kW backup heater to ensure continuity of operation at extremely low ambient air temperatures. Toshiba Mini SMMSe VRF The 5hp system provides heating and cooling for the room above a triple garage via a 5.6kW four-way cassette A 6hp (15.5kW) Toshiba Mini SMMSe VRF is connected to ducted units in the bedrooms and two of the newly designed compact 3.6kW one-way cassettes downstairs, which have been designed to fit between the joists on a traditional home. The second 5hp (14kW) system provides heating and cooling for the room above a triple garage via a 5.6kW Toshiba four-way cassette, while the garage space below, where a spa area is planned, is served by two wall-mounted units. Efficiency “The whole system has been running since December last year and the way it has transformed the house is fantastic,’’ said David Meseck, a Specialist in renewables, sustainability, and the circular economy. He adds, “It was important to get everything right; the project was sized correctly and the equipment installed properly." Cost-effective all-electric heating system As well as helping to future-proof our home and reducing energy costs, the changes have added value to the property" David Meseck continues, "Together with the other measures, we now have an efficient, all-electric heating system with the added benefit of cooling in summer, and the annual servicing cost is comparable to boiler cover. As well as helping to future-proof our home and reducing energy costs, the changes have added value to the property." He adds, "I would urge anyone looking to invest in their home to look at the bigger picture and make it an environmentally-responsible investment.’’ Four models are available in the ESTIA range, spanning capacities from 4-11kW, all with reversible operation to provide cooling as well as heating if required. twin rotary compressor At the heart of ESTIA is Toshiba's award-winning twin rotary compressor, which contributes to the system's outstanding energy efficiency rating of A+++. The compressor enables the heat pump to continue supplying hot water even during exceptionally cold weather, delivering water at 62 degrees C when outdoor temperatures fall to -25 degrees C. ESTIA can also continue producing DHW at exceptionally high outdoor temperatures (43 degrees C) to deliver maximum running cost savings. all-in-one floor-standing hydro-module Toshiba offers a space-saving wall-mounted hydro-module for boiler replacement projects such as this, with a choice of 150l, 200l, or 300l capacity external cylinders. For new-build projects, an all-in-one floor-standing hydro-module with an integrated 210l tank provides a compact solution for both heating and DHW storage. Easy-to-install ESTIA provides a superb solution for homeowners or small businesses looking to replace less efficient systems" “ESTIA provides a superb solution for homeowners or small businesses looking to replace less efficient systems," said David McSherry, David McSherry, Head of Sales for Toshiba Air Conditioning UK, Carrier Global Comfort Solutions Europe. “It is quick and easy to install on-site, and Toshiba’s renowned reliability means a long working life, backed by our excellent warranty.” Performance, warranty, and reliability Installer - Peter Franks, Managing Director of Mansfield-based Woburn Mechanical Services Ltd, added, “This is by some distance the biggest domestic project we have undertaken. The customer knew exactly what he wanted and now has a comprehensive heating and cooling system." Peter Franks concludes, "The Toshiba equipment is excellent in terms of performance and reliability and comes with a seven-year warranty. We wouldn’t be fitting it if we didn’t have complete confidence in it.’’