Editor's Note

Since the beginning of the COVID-19 pandemic, HVAC systems have been at the center of concerns such as indoor air quality and the need to minimize potential exposure. At the local level, HVAC installers have increased their efforts to keep equipment and supplies clean, and technicians are wearing gloves and masks as protection to keep customers safe. Many HVAC companies have also sought to give back to local communities hard-hit by the pandemic. As an industry, HVAC has remained committed to ma...

The U.S. Environmental Protection Agency has rolled back a standard set under the Obama administration to require leak repair and maintenance for industrial and commercial refrigeration and air conditioning equipment containing 50 or more pounds of hydrofluorocarbons (HFCs). The industry embraced HFCs, which are potent greenhouse gases, as a replacement for ozone-depleting refrigerants such as chlorofluorocarbons (CFCs). The requirements that have now been rolled back merely extended the leak p...

Which measures can lessen the spread of the novel coronavirus, and which can make it worse? As the pandemic continues to unfold, there is an overabundance of advice on the subject as it relates to HVAC systems. For example, one theory goes that air conditioning, by removing humidity from the air, may enable infectious droplets to linger longer than they would outdoors or in another space where humidity is higher. More humidity can weigh down viral droplets as they float through the air. Does i...

A fuel called “Bioheat” is made by blending biodiesel made from organic and recycled products with ultra-low sulfur heating oil. The feedstocks used to make biodiesel include vegetable oils, animal fats, or recycled restaurant grease. About half the biodiesel produced in the United States is made from soybean oil. Blends are designated in percentages – a 5% blend of biodiesel with heating oil is B5, a 10% blend is B10, and a 20% blend is B20. Blends up to 5% are called &ldquo...

Machine learning provides a tool to lower energy costs in a building, and Honeywell has launched a platform that incorporates the newer technology. Combining self-learning algorithms with building automation, Honeywell Forge Energy Optimization is a cloud-based system that analyzes a building’s energy consumption pattern and adjusts its settings. “We can help building portfolio owners fine-tune their energy expenditures to drive efficiencies and create more sustainable practices,&rd...

Mobile systems are growing in popularity across the HVAC market, driven by convenience and changing demographics of the workforce. For younger employees, smart phones are almost an extension of their hands. As they enter the HVAC workforce, they are eager to embrace mobile systems. However, the simplicity of mobile systems is also attractive to older workers, who may be less inclined to use a complex desktop computer system. In the case of mobile systems, “limitation leads to creativity,&...

When a visionary industrial designer turns his attention to the HVAC industry, it’s probably wise to take note. Recently, technology entrepreneur and philanthropist, Elon Musk expressed his vision for residential HVAC, based in part on a new heat pump his engineers designed for the Tesla Model Y electric compact sport utility vehicle. Efficient, quiet home HVAC system According to several reports, Musk seeks to build an efficient and quiet HVAC system for the home, piggybacking on the te...

Now an independent company, HVAC giant Carrier plans to extend its product range, expand its geographical coverage and increase its service and digital offerings. The company is well-positioned to continue to benefit from strong industry growth, given its significant installed base, disciplined operation, and commitment to innovation. In the last month, Carrier Global Corp. has debuted as an independent, publicly traded company after separating from United Technologies. It will trade under the...

Since the coronavirus pandemic began, the ultraviolet irradiation industry has seen an unprecedented surge in demand for germicidal solutions. UV-C light is a short-wavelength, ultraviolet light that kills germs by inactivating a microorganism’s DNA. Germicidal UV-C energy is just one of three proven methods identified by ASHRAE of controlling airborne infection. The other two are ventilation and particle filtration. The pandemic has left no doubt that the 254 nm germicidal wavelength can...

Google’s Nest smart thermostat is testing a new capability that will alert homeowners of problems with the operation of their HVAC systems based on artificial intelligence (AI) algorithms that analyze system performance. The technology will empower Nest Learning thermostats to provide ‘early warning’ of HVAC problems and even direct homeowners to a repair company. The new capability will involve measuring factors such as how long it takes to heat or cool a room. If the requir...

The need to achieve energy efficiency and improve performance propels a lot of business in the HVAC industry. When installing systems, building owners often strive to comply with the latest voluntary standards. However, some cities are taking the lead to make building performance standards mandatory, thus providing additional incentive for customers to invest in new, more efficient and climate-friendly HVAC technologies. Building Energy Performance Standard NYC has deployed its Carbon Mobiliza...

HVAC industry employees are included among “Essential Critical Infrastructure Workers During the COVID-19 Response” as designated by the U.S. Department of Homeland Security (DHS). The guidance memorandum states: “If you work in a critical infrastructure industry, as defined by the Department of Homeland Security … you have a special responsibility to maintain your normal work schedule.” The edict comes from the DHS Cybersecurity & Infrastructure Security Agen...

COVID-19 is a human tragedy for thousands and is having a profound impact on the world economy, including the HVAC market. Many businesses are scrambling to survive even as they address the intense human element of the crisis. A survey by the Air Conditioning Contractors of America (ACCA) gathered insights on the effect the coronavirus pandemic is having on the HVAC industry. More than 70% of survey respondents expect the medical implications of the pandemic to last up to three months. (The sur...

Refrigerants used in cooling systems for homes and businesses are being replaced with alternatives that have less potential for global warming. But the transition comes at a risk: Some of the new refrigerants are flammable.  Although less flammable than gases such as propane, for example, new refrigerants can still ignite and burn with a high intensity under ideal circumstances. The new materials have low-flame velocity and are less easily ignited; however, one byproduct of combustion is t...

Data is playing an increasingly important role in smart buildings. Analysis of building system data is guiding an expansion of capabilities in the smart building environment, making building systems – including HVAC – more efficient and effective. The convergence of multiple building management systems is inevitable -- it's just a matter of time and it’s already happening. The data collected from the various systems make up a data profile that can be put to work to create new o...

Small airborne particles contribute to the spread of infectious diseases of all sorts, and current concerns about the novel coronavirus COVID-19 are highlighting the role of HVAC systems to minimize airborne disease transmission and to ensure better indoor air quality in general. Because small particles can remain airborne for some period of time, HVAC systems can play a positive role in minimizing disease transmission, specifically by: Supplying clean air to susceptible occupants. Containi...

HVACR is a mature industry, to be sure, but one that continues to innovate. I found an example of industry innovation at the Infinitum Electric booth at AHR Expo in Orlando. The five-year-old company offers a 15-hp motor for ventilation applications that weighs only 96 pounds and is 96% efficient. The motor is based on technology that pulls the iron and copper out of the stator and etches copper coils into a circuit board. Infinitum has filed 21 patents over the last three years to cover the tec...

HARDI, an organization of wholesale distributors in the HVACR market, is curating and publishing videos on various aspects of the industry. Heating, Air-Conditioning, and Refrigeration Distributors International (HARDI) has launched HARDI Hub, a platform with educational and informative videos that allow viewers to learn something new. As the Hub evolves, the hope is to see an increased contribution of content from members, allowing them to be able to teach their peers information they are the e...

Annexair unveiled a new line of more sustainable and eco-friendly HVAC systems during AHR Expo in Orlando. The company displayed the new units, made from biosourced engineered composite panels, in a parking lot that was a short drive from the Orange County Convention Center. Composites are 50 to 60% lighter and five times stronger than metal. The engineered composite panels have reinforced glass fiber. Annexair combines the composite panels with green foam insulation made from recycled water bo...

There was plenty to see and appreciate at AHR Expo in Orlando. And there is good news to report: Innovation is alive and well in the HVAC market. Some new products on display demonstrated genuine ingenuity. Exhibitors had enthusiasm to spare as they shared what’s new in the market with this first-time visitor to the show. HVAC is not a new market, but it is changing and, in some regards, re-inventing itself. The vibrancy, variety and sheer size of AHR Expo showed off the newest and best th...

What is the cost of “rolling a truck” to service an HVAC system, and how can you maximize the efficiency of such a call while minimizing the cost? On the second day of AHR Expo in Orlando, several companies mentioned the benefits of various diagnostic and analytics systems that can be accessed remotely and that provide information for a technician about the nature of a problem, and what parts are needed, before he or she leaves for the call. It’s an example of how technology ca...

Technologies such as machine learning and the internet of things (IoT) are taking their place alongside more traditional products at AHR Expo in Orlando this week. Performance of the industry’s historic product mix continues to improve from the standpoint of efficiency and sustainability, and elements of the industry’s “digitization” are making it even better. The “smart building” has finally arrived in earnest. “Our world is changing,” said Jenny...

Around 1,900 exhibitors display the latest HVACR products and services at the AHR Expo 2020, Feb. 3-5, in Orlando. Show organizers are expecting a great turnout, judging by pre-registration activities. The 500,000-square-foot exhibition, billed as “The World’s Largest HVACR Marketplace,” includes well-known HVACR brands such as Emerson, Samsung, Johnson Controls, Daikin and Mitsubishi Electric. “The show is unique in that it is the gathering place for professionals from...

Trade jobs in general are really struggling to find talented individuals interested in the opportunities. The “dark and dangerous” stigma needs to start being overturned, and people need to realize the great success that can be found in industries like HVACR. That’s why HARDI, Heating, Air-conditioning and Refrigeration Distributors International, is working on a workforce recruitment initiative that includes a video project to highlight different people with different backgro...

The HVAC industry has more eventual jobs to fill from among recent high school graduates than there are people to hire. One problem is that high school graduates often don’t consider a technical trade as a viable career path. Perhaps influenced by school counselors, parents or even peer groups, many students single-mindedly pursue a four-year college degree (whether or not their academic history supports such a decision). Many young folks miss the opportunity to create a more direct path t...

Smart homes are a key focus at CES 2020, the world’s largest technology event, January 7-10 in Las Vegas. The giant show features more than 170,000 attendees, 4,500 exhibitors and 1,100 industry thought-leaders featured on the CES stage. A range of technologies will be on display, from artificial intelligence (AI) to 5G, vehicle technology to AR/VR (augmented and virtual reality), robotics to home automation. smart home environment The role of intelligent HVAC systems in the smart home w...

ASHRAE and NIST have pledged to strengthen their partnership focusing on key issues in the HVAC market. A new Memorandum of Understanding (MoU) formalizes the agreement and sets the stage for continued cooperation for the benefit of the HVAC marketplace. ASHRAE, the American Society of Heating, Refrigeration and Air Conditioning Engineers, is a global professional society committed to advancing the arts and sciences of heating ventilation, air conditioning, refrigeration and related fields. The...

Teenage students at Greenfield-Central High School in Indiana are learning about the installation, operation and maintenance of air-handling systems. The career and technical education class is giving them a head start toward a decent-paying career in HVAC, including the opportunity to earn multiple certifications. “You’ll get a job if someone else doesn’t have the certifications you do, so [there are] more job opportunities,” one student told the Greenfield Daily Report...

Could lack of ventilation impact the performance of students in the classroom? A study of ventilation and other HVAC issues in California classrooms raises the issue. According to the study by the University of California-Davis and the Berkeley National Laboratory, nearly 85 percent of HVAC systems recently installed in California K-12 schools do not provide adequate ventilation. Nearly 85 percent of HVAC systems recently installed in California K-12 schools do not provide adequate ventilation...

The HVAC market in Europe is expected to show sustained growth in the upcoming years, but with variation among product segments. The decarbonisation strategies in Europe stimulate a strong demand for energy-efficient heating and cooling solutions. The heat pump market in particular has done exceptionally well, with double-digit growth for several years in a row. That’s the outlook from Eurovent, Europe’s Industry Association for Indoor Climate (HVAC), Process Cooling, and Food Cold...