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In this episode of the podcast hosts Eric Kaiser and Bill Spohn welcomed Amit Gupta from AeroSeal, a company specializing in duct sealing technology. Amit shared the backstory of AeroSeal, which was originally founded based on technology invented by Dr. Mark Modera at Lawrence Berkeley National Laboratory. The technology struggled to gain traction under its initial ownership by Carrier, leading Amit, who was working at Carrier post-MBA, to see the potential for significant energy efficiency improvements in homes through duct sealing. Amit's passion for the technology led to the acquisition and reboot of AeroSeal as an independent company in 2010, focusing on sealing ducts, building envelopes, and potentially underground gas pipelines to improve energy efficiency and reduce waste. AeroSeal's technology addresses the inefficiency and energy loss in buildings by sealing air ducts and envelopes with a patented process that injects micron-sized particles to seal leaks from the inside. This approach is likened to a "fix-a-flat" for buildings, aiming to significantly reduce energy waste and contribute to the net-zero energy building goal. Amit highlighted the vast potential impact of their technology, noting that buildings contribute to a significant portion of CO2 emissions and energy consumption, primarily through heating and cooling. By improving the sealing of ducts and envelopes, AeroSeal aims to address this inefficiency systematically, offering a solution for both new construction and existing buildings. The conversation also touched on the challenges and opportunities in promoting AeroSeal's technology. Amit discussed the common acceptance of inefficient HVAC systems by homeowners and the industry's gradual shift towards recognizing the importance of energy efficiency and indoor air quality. The technology's application ranges from residential homes to iconic commercial buildings, demonstrating its scalability and effectiveness. Amit emphasized the importance of action and awareness in adopting such technologies to make a tangible impact on energy efficiency and environmental sustainability. This episode was recorded in January 2024.

In this episode Eric Kaiser and Bill Spohn review their experiences and insights from the 5th Annual HVACR School training symposium. They start by discussing the symposium's popularity, noting it had a cap of 300 attendees, indicating a high level of interest and engagement within the community. A highlight mentioned is a 12-year-old attendee, Atley D., who exemplified passion and intelligence for the HVAC trade, showcasing the diverse range of participants and the potential for young talent in the industry. They also cover various aspects of the symposium, such as the focus on practical learning sessions, tool and instrument selection workshops, and the integration of home performance into HVAC businesses. These discussions underscore the event's comprehensive approach to professional development in the HVACR field, emphasizing both technical skills and broader industry perspectives. Furthermore, they touch upon the importance of inclusivity and diversity, particularly the representation of women in the trade. A panel discussion on this topic is highlighted, indicating an ongoing effort to address gender disparities and foster a more welcoming environment for all professionals. Overall, they saw a vibrant and dynamic community focused on education, innovation, and inclusivity within the HVACR industry, underscoring the symposium's role in advancing professional standards and encouraging new talent. The launch of the #betterHVAC initiative (www.betterHVAC.org) happened at the event and underscores the concepts that bring us all together at the symposium Learn Continuously  Do Ethically  Share Openly You can still get a ticket to watch videos of the sessions for only $26 here: https://hvacrschool.com/events/5th-annual-hvac-r-training-symposium/ In closing, our industry owes a debt of Bryan Orr for creating this community and to his team at Kalos and his family for making it all happen to the delight of the participants. This episode was recorded in February 2024.

In this episode of the Building HVAC Science Podcast, Eric Kaiser introduces Ralph Wolf, a respected figure in the HVAC industry, known for his internet presence and contributions to the field. Ralph discusses his journey, emphasizing the impact of social media on his career and his current role in education. Despite his reduced online activity since joining Ferguson, Ralph's influence remains strong, reflected in his interactions with students who recognize and appreciate his teachings. Ralph reflects on his career trajectory, highlighting his start in the Navy, which introduced him to sheet metal work and set the foundation for his future in HVAC. His post-Navy experience involved navigating various roles, from sheet metal installer to HVAC service technician, showcasing adaptability and continuous learning. Ralph also shares insights into the challenges and rewards of starting an HVAC business, underscoring the importance of realistic expectations and dedication. Towards the end of the podcast, the conversation shifts to technical aspects of HVAC work and industry changes, like the refrigerant transition. Ralph stresses the need for technicians to adapt and adhere to best practices while navigating these shifts. He advocates for continuous learning and proper tool usage, noting the common reluctance among technicians to invest in diagnostic tools like manometers. The episode concludes with Ralph's humorous anecdotes from his fieldwork and his candid thoughts on personal and professional growth in the HVAC industry.   Ralph’s linked in: https://www.linkedin.com/in/ralph-wolf-3073b131/   This episode was recorded in December 2023.

Eric Kaiser and Bill Spohn share their experiences and observations from the 2024 AHR Expo, a major event for the heating, ventilation, air conditioning, and refrigeration (HVACR) industry held this past week (Jan 22-24, 2024).  Main points: There were thousands of vendors showcasing new products and technologies. We mention the educational sessions, standards committee meetings, and networking opportunities available at the event. New products and trends: We share some of the new products they saw at the expo, such as vacuum pumps from JB Tools, core tools from Fieldpiece, and a digital manifold from Yellow Jacket. We also mention the growing trend of electrification in the HVAC industry. Awards and events: We highlight the HVAC Tactical Awards, which recognize outstanding individuals in the industry. We also mention our own presentation on climate-resilient HVAC and an event TruTechTools co-sponsored with NCI, TEC, HVACRSchool, Sauermann, & MeasureQuick focused on networking High performance HVAC contractors from across the country. We also note several resources for listeners interested in learning more about the HVAC industry, including the Better HVAC Alliance, the MeasureQuick blog, Rewiring America, and the HVACR School Symposium. We hope to give you a glimpse into the world of the AHR Expo and highlight some of the latest developments in the HVAC industry. It's a valuable resource for anyone interested in learning more about this important sector. Please consider attending if you can. It’s the place where cool stuff happens! www.AHRexpo.com Other links mentioned in the podcast: www.BetterHVAC.org www.RewiringAmerica.org www.GetDuckling.com   www.HVACtactical.com The HVAC Tactical Awards Video: https://www.youtube.com/watch?v=R_xB06pbe28   Climate Resilient HVAC presentation: https://www.contractingbusiness.com/industry-events/ahr/article/21281376/2024-ahr-expo-climate-resilient-hvac   ANSI/ASHRAE Standard 221:  https://webstore.ansi.org/standards/ashrae/ansiashraestandard2212020   MeasureQuick blog: https://measurequick.com/solving-our-labor-endemic/   HVACSchool Symposium: https://hvacrschool.com/events/5th-annual-hvac-r-training-symposium/ This episode was recorded in January 2024

Bill & Eric had a great time digging into the details of all things IAQ with John Ellis.   Our conversation covered a new air filtration product developed by John in collaboration with Dustfree.    Eric queried John on the applications for and design of the product. John with his 43 years of field experience, describes the collaboration with Dustfree's engineers and the development of this novel filtration system that employs all five filtration methods and has received ASHRAE 52.2 credentials with a MERV 16 rating.   John elaborates on the technical aspects of the filtration system, explaining the static pressure drops for different unit sizes and emphasizes the filter's long life of 2 to 5 years.    He also discusses how the product effectively addresses PM 2.5 and maintains its efficiency through a robust electrostatic component. He distinguishes this product from competitors, noting their shortcomings, and focuses on the unique features of their filtration system, such as even loading and a comprehensive approach to capturing various particle sizes.   A we wrap up, the conversation shifts to the practical applications and installation aspects of the filtration system. John shares insights into the design considerations for different furnace sizes and the simplicity of the filter box design, which requires either four or three filters, depending on the unit. He also mentions the flexibility of installation in various settings like attics, basements, and commercial spaces.    Ellis covers his distribution strategy, emphasizing the product's ease of transport and assembly, which makes it convenient for contractors and distributors alike.    Our conversation concludes with a discussion on building forensics and the importance of proper investigation and diagnosis in indoor air quality solutions, highlighting John’s extensive experience in the field.   John’s LinkedIn: https://www.linkedin.com/in/john-sme-b13b0411/   John is also very active in HVAC Facebook groups. This episode was recorded in November 2023  

Eric and I had the distinct pleasure of interviewing Dominick Guarino the Chairman & CEO of the National Comfort Institute (NCI) about its mission to improve the HVAC industry through education and training. Here are the key points: NCI's origin and mission: Founded in 1998 by Dominick Guarino and the late Rob Falke. Driven by the desire to improve comfort, energy efficiency, safety, and health in homes and buildings. Focusing on high-performance HVAC and the importance of measuring delivered performance. NCI's activities: Offers technical training classes on airflow, combustion balancing, refrigerant side performance testing, and more. Develops and provides certifications, such as the only CO and combustion certification in the industry. Emphasizes the importance of communication and customer service for HVAC professionals. Helps contractors monetize their services by demonstrating the value they provide. NCI's team: Composed of passionate individuals with industry experience and a commitment to high-performance HVAC. Key members include David Richardson (VP of training), Casey Contreras (trainer), John Perer (trainer), Al D’Ambola (trainer), Jim Ball (trainer), and Jim Davis ("Captain Combustion"). NCI's impact: Trained thousands of technicians and contractors over the years. Helped raise awareness about the importance of CO safety and proper combustion testing. Contributed to the development of modern CO and combustion analyzers. Additional information: NCI has membership program with member benefits and a summit event every year. Eric Kaiser's first HVAC industry class was NCI's CO and combustion class with Jim Davis, which significantly impacted his career. Dom’s Linked In: https://www.linkedin.com/in/dominickguarino/ Learn more about NCI at https://nationalcomfortinstitute.com/ This episode was recorded in December 2023  

Eric and I had a great time learning about Classset, a platform that connects skilled trades workers with potential employers. Here's a 3-paragraph summary: Classset was founded by Cooper Newby and his co-founder Nick Jones, who were inspired by their previous experience recruiting blue-collar workers and their belief in the potential of the skilled trades. They saw a need for a platform that would help people learn about and access skilled trades careers, and Classset was born. Classset offers a variety of resources for both job seekers and employers. Job seekers can find information about different trades, compare salaries and training requirements, and even build profiles showcasing their skills and experience. Employers can post job openings, screen candidates, and connect with qualified workers. Classset also has a focus on mentorship and apprenticeship programs, recognizing the importance of hands-on learning in the skilled trades. Classset is still a relatively new platform, but it is growing rapidly. The company has developed a number of innovative features, such as the "Periodic Table of Skilled Trades" and a free applicant tracking system, to help connect job seekers and employers. With its focus on making skilled trades careers more accessible and attractive, Classset has the potential to make a real difference in the lives of many people. AI prescreening and recruiter screening for candidates weeds out the 40% of candidates who are unresponsive so you only interview people who fit your 'must have criteria'. Companies simply funnel the marketing spend that they would put into other job boards and we manage all the ads and screening for companies. At the end of the day, trades companies and candidates are only getting busier so we want to make it as easy for people to connect and advance their careers. Cooper’s Linked In: https://www.linkedin.com/in/coopernewby/ Other links we mention: Classet Job Search, Apprenticeship search and trades school ratings: https://www.classet.org/jobs Periodic Table of skilled trades - short tik tok videos and salary/career exploration to help people explore the different trades: https://www.classet.org/skilled-trades-careers Video Skilled Trades Quiz to find your trades fit: https://www.classet.org/skilled-trades-quiz Classet handy helper - AI text bot - answer your trades questions via text: https://www.classet.org/land/classet-handy-helper?utm_source=blog Example of our pages answering questions about certifications requirements in each state https://www.classet.org/license/HVAC%20Tech/Texas 'Baseball Card' Portfolios for trades candidates - view pictures of trades projects and tradesman portfolios to stand out more: https://www.classet.org/projects?s=popularity https://www.classet.org/profile/11a599b9.   They have a free tier of our Applicant tracking system for companies. https://www.classet.org/for-companies    This episode was recorded in November 2023  

Eric and I had the pleasure of interviewing Shawna Henderson, as self-proclaimed building science wonk: who works to keep it real in the field and make it real with online training for builders and renovators. A unique thought she shares were her remarks on building science haiku: how structure, components and requirements can create thousands of variations. Shawna, with 30 years of experience since 1992, is dedicated to energy-efficiency and housing. Her passion lies in building science, energy efficiency, and fostering collaboration for a sustainable residential construction industry. As Blue House Energy's CEO, she focuses on online training for building science and energy efficiency. Their mission is to create quality online training for home renovation and construction pros, delivered through regional and national partners. Under her Bfreehomes role, Shawna works on sustainable and accessible design projects, including deep energy retrofits and net zero energy homes. She's an experienced presenter at conferences, with expertise in deep energy retrofits, solar thermal systems, and authorship of sustainable housing books. Shawna's involvement extends to organizations like the NZE Coalition's Education Action Team, the Commission for Environmental Cooperation's Green Building Task Force, and CHBA's NZE Retrofit Working Group. Specialties: residential energy analysis, barrier-free home design, solar home design, deep energy retrofits, plain language writing, and e-learning production.   Shawna’s linkedin: https://www.linkedin.com/in/shawnahenderson/ Shawna’s online courses: https://bluehouseenergy.com/   This episode was recorded in November 2023  

We’ve kept Eric Kaiser, our Industry Engagement Manager, busy for the last couple years and especially in 2023. Part of his busy-ness was related to traveling to various conferences, meetings and events. In this episode, Bill and Eric chat about these experiences and how they help us better serve customers and the industry. This episode was recorded in December 2023  

Niek-Jan’s Linked In https://www.linkedin.com/in/niek-jan-bink-18b6203/ ACIN Products: http://www.acin.nl/ RETROTEC and ACIN at TruTech Tools: https://trutechtools.com/retrotec   Eric and I had the pleasure of interviewing Niek Jan Bink, a Dutch national who has been working in the HVAC industry for over 20 years.  He is the founder of Acin, a company that manufactures airflow measurement products.    PostScript after recording: Niek-Jan noted his personal friendship with Ben Walker and his colleagues at Retrotec and thanks Sam Myers for being a great ambassador for ACIN!   Over the years, Bink has traveled extensively to the United States for both business and pleasure. Key trips included attended the HVAC Symposium in Florida and has also visited his daughter, who played field hockey for the Champions at University of Delaware. (2016 NCAA National Championship.) Niek-Jan shared with us how he is impressed by the open and friendly culture of the HVAC industry in the United States. He finds that people are more willing to give feedback, both positive and negative. Bink is also interested in the use of social media in the HVAC industry. He believes that platforms like LinkedIn and Facebook can be valuable tools for connecting with potential customers and colleagues.  Bink is particularly interested in the use of social media to share knowledge and information. He believes that this can help to improve the overall quality of the HVAC industry.  Overall, Bink is a positive and enthusiastic advocate for the HVAC industry. He is excited about the future of the industry and believes that it has a lot to offer the world. Here are some key takeaways from the interview: The HVAC industry in the United States is open and friendly. Social media can be a valuable tool for connecting with potential customers and colleagues. Sharing knowledge and information on social media can help to improve the overall quality of the HVAC industry. This episode was recorded in October 2023.  

Eric and I had a great conversation with Louise Kellar, the National Training Manager for UEi Test instruments. We share a lot of common ground with Louise on education and proper application in test and measurement. And in this interview Eric and Louise literally shared the common ground they were standing on during the interview which was conducted in the TruTech west studio in Indianapolis, IN. We learn how Lousie’s work experience has perfectly tailored for her current role at UEi and what it is like to work for a large family business. We also discuss how women are still underrepresented in the HVAC industry, making up only about 2% of the workforce. And we settle in on a number of things that can be done to encourage more women to enter the HVAC industry, such as: Providing more opportunities for women to learn about the industry Creating more mentorship programs for women in the industry Promoting the HVAC industry as a viable career option for women The HVAC industry is changing and becoming more inclusive, and there are more opportunities than ever for women to succeed in this field. We also reference Jennifer Manzo and HVAChicks – who came on in EP 129 Women should not be afraid to pursue careers in the HVAC industry, and they should know that there is a supportive community of women who are there to help them succeed.   Louise’s Linked In: https://www.linkedin.com/in/louise-kellar-bbb659101/ UEi Test Products: https://www.ueitest.com/ECommerce/Default.aspx UEi at TruTechTools: https://trutechtools.com/uei Women in HVACR group: https://www.womeninhvacr.org/   This episode was recorded in October 2023  

Eric and I agree: Tersh Blissett would win the best-dressed in HVAC award if there was one. But beyond his dashing apparel, Tersh is a person of many talents. As a visionary creator of the Service Business Mastery podcast (now with co-host Josh Crouch), he is a font of wisdom and inspiration that has been flowing since 2017 when he became part of Bryan Orr’s Blue Collar Roots Network with me (and this podcast) and others. While the Blue Collar Roots Network is now defunct, the spirit still lives on. Tersh has a great entrepreneurial mind, building multiple profitable home service businesses that thrive in the small-town market of Savannah, GA. He is a constant learner, in both the technical and businesses aspects of his work, but more than that he is a great communicator of what he learns as he keeps a crazy schedule between his business, his podcast, his community work and most importantly his family.   He truly puts people over profits and teaches everyone from his office staff to his technicians to do the same. Tersh excels in bringing the very best technology to everything he does in the HVAC  Tersh’s Linked In: https://www.linkedin.com/in/tershblissett/ Podcast: https://www.youtube.com/c/servicebusinessmasterypodcast   This episode was recorded in October 2023