Hvac Know It All Podcast

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Tim De Stasio, the owner and president of Comfort Science Solutions LLC, who has become a popular figure in the industry through his engaging critique videos. In Part 1, they discuss Tim's journey into creating content that humorously but constructively points out errors in other HVAC professionals' videos. These segments are not only entertaining but educational, as they often lead to real improvements and corrections in HVAC practices. Tim shares insights into his motivations and the unexpected rise in his social media following, reflecting on how his light-hearted commentary has made a significant impact on the industry. Tim De Stasio talks about common mistakes people make in HVAC videos and how these errors affect the industry. He explains how he creates fun and helpful videos to correct these mistakes. His videos don’t just teach. They also entertain, helping HVAC workers do their jobs better. He also discusses how his con

In this episode of HVAC Know It All Podcast, host Gary McCreadie continues his convo with John Pastorello, an expert in HVAC cleaning solutions, and CEO at RTX Scientific, Inc dba Refrigeration Technologies. In Part 02 they break down coil cleaners, explaining why choosing the right product is crucial for different HVAC parts. John warns about the damage caused by harsh cleaners like brighteners and highlights the benefits of using ones with corrosion inhibitors. They also discuss how these cleaners protect aluminum and copper components, along with practical tips for HVAC technicians, such as correct dilution ratios and the importance of rinse aid technology. This discussion gives HVAC professionals key insights into proper cleaning methods to boost system performance and extend equipment lifespan. John Pastorello explains the challenges HVAC technicians face in keeping coils and ducts clean and why traditional methods often fall short. He stresses the importance of using the right cleaners, especially thos

In this episode of the HVAC Know It All Podcast, host Gary McCreadie, talks with John Pastorello, an HVAC technician and chemist turned innovator, CEO at RTX Scientific, Inc dba Refrigeration Technologies. In this Part 1 they discuss the importance of coil protection and John’s invention coil coating, which helps prevent corrosion in tough environments. John explains how this coating protects key HVAC components like condenser coils and rotor lock fittings, extending their lifespan. They also cover practical uses, the science behind corrosion prevention, and how this technology helps HVAC professionals keep systems running longer and more efficiently. John Pastorello talks about the problem of metal corrosion in HVAC systems and why traditional coatings don’t always work. He explains how advanced solutions like coil coating can make HVAC components last longer and run more efficiently. John emphasizes the need for HVAC professionals to use new technologies and better application methods to protect systems fr

In this episode of HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Dr. Mark Modera, The Inventor of Aeroseal, Professor at the University of California, Davis, Visiting Faculty at Berkeley Lab and Former Vice President at Carrier HVAC. In this Part 02 they discuss how HVAC contractors can integrate Aeroseal into their services, the process of becoming an Aeroseal dealer, and why this technology is a valuable addition for residential and commercial applications. Dr. Mark Modera explains the science behind Aeroseal, The Invention of him. how the sealant particles work to close duct leaks, and the limits of what size leaks can be sealed. They also cover how the building science community views duct sealing, the impact on HVAC Performance improvement, and why reducing duct leakage is essential for system performance and energy savings. This discussion provides valuable insights for HVAC professionals looking to expand their services and improve system performance with modern sealing

It might take sometime to build the customer base you enjoy working for. Gary McCreadie takes us through how he met another contractor that services high end homes and how how enjoys that service environment. Latching on to the right customer that you can serve and enjoy doing so, can help your business grow to the next level. Check out Jobber, the CRM tool that McCreadie HVAC and Refrigeration uses to keep their business organized.getjobber.com/hvacknowitall

In this episode of HVAC Know It All Podcast, host Gary McCreadie welcomes Dr. Mark Modera, The Inventor of Aeroseal, Professor at the University of California, Davis, and Visiting Faculty at Berkeley Lab and Former Vice President at Carrier HVAC. They talk about why sealing ducts is important for HVAC performance, how new methods like Aeroseal, the invention of Dr. Mark Modera, is better than old ones, and why fixing duct leaks saves energy and improves comfort. Dr. Mark Modera also explains the science behind duct leaks, how they affect system performance, and how modern sealing technology makes the job easier. This discussion gives HVAC professionals useful tips on improving airflow, making homes more effective, and using better duct sealing methods. Dr. Mark Modera talks about the problems caused by duct leaks in HVAC systems and why old sealing methods don’t work as well as new solutions like Aeroseal. He explains why it's important to check and measure duct leaks, the need for ongoing learning in buildi

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Jim Bergmann, President of measureQuick and Director of New Product Development at Redfish Instruments Inc. In Part 2, they discuss the challenges of low ambient charging, the transition from traditional methods to modern solutions like charging blankets, and why precision in refrigerant charging is essential. Jim also emphasizes the importance of automation in HVAC diagnostics, how measureQuick simplifies charging processes for both TXVs and fixed orifice systems, and why using the right tools can prevent overcharging and system inefficiencies. This in-depth discussion provides practical insights for HVAC professionals looking to improve accuracy, efficiency, and troubleshooting skills in cold weather conditions. Jim discusses the complexities of low ambient charging, why traditional methods can lead to overcharging, and how charging blankets can improve accuracy. He highlights the importance of verifying sy

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Jim Bergmann, President of measureQuick and Director of New Product Development at Redfish Instruments Inc. They discuss the responsibilities of HVAC technicians, the shift from traditional charging methods to modern techniques like charging blankets, and why accurate diagnostics are crucial. Jim also highlights the importance of continuous learning, the role of technology in optimizing systems, and how better tools can prevent costly mistakes. This in-depth discussion provides valuable insights for HVAC professionals looking to enhance their skills and system efficiency, especially in low ambient conditions. Jim discusses the challenges HVAC technicians face in low ambient conditions and why standard charging methods don’t always work as well as techniques like charging blankets. He highlights the importance of technicians verifying system charges, ongoing education, and using technology to improve diagnostics and performance. Plu

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Laurence Michelson, Co-Managing Partner at Cool Daddy LLC, Director of ObjectStep, HVAC Constitution expert at AlphaSights, and former Senior HVAC Counterman at A&R Supply, South Florida.  In Part 2, they discussed the challenges within HVAC supply chains, including communication gaps, lack of automation, and the growing burden on counter staff. They also discuss why returned parts are a major issue, the impact of brand ownership changes, and how technology can improve efficiency in HVAC distribution. Laurence also shares insights on the daily challenges HVAC counter staff face, the disconnect between technicians and suppliers, and why effective communication is crucial for smooth operations. He emphasize the impact of brand ownership changes, the risks of relying on undertrained counter staff, and how technology can streamline HVAC supply transactions. Additionally, he discusses why returned parts creat

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Laurence Michelson, Co-Managing Partner at Cool Daddy LLC, Director of ObjectStep, HVAC Constitution expert at AlphaSights. and former Senior HVAC Counterman at A&R Supply, South Florida. They will explore the life of an HVAC suppliers counterperson, the disconnect between technicians and suppliers, and why proper communication and product knowledge are crucial for success in the industry. Laurence Michelson shares insights on the challenges HVAC suppliers face, the disconnect between counter staff and technicians, and why technicians should take responsibility for verifying parts. They also discuss the importance of supplier training, the role of technology in HVAC distribution, and how better communication can prevent costly mistakes in the field. This episode is filled with real-world HVAC insights, industry challenges, and practical advice to help technicians and suppliers improve communication and efficiency. Laurenc

Not all coil cleaners in HVAC and Refrigeration are created equal. That sticker on the OEM equipment that states, "only use water", does hold some weight but not nearly as much as you think. In this short episode, Gary McCreadie discusses what coil cleaners can be used on condensers and evaporaters without damaging the coil. Check out Jobber, the CRM tool that McCreadie HVAC and Refrigeration uses to keep their business organized. getjobber.com/hvacknowitall

In this episode of the HVAC Know It All Podcast, Host Gary McCreadie continues his conversation with Jamie Kitchen, an Industry Expert from Danfoss. In Part 2, they will discuss the role of check valves in Heat Pump TXVs in more detail, comparing North American and European TXV designs and discussing why refrigerant adoption differs across regions. Jamie also shares insights on how inverter-driven heat pumps impact metering devices, the differences between Thermostatic Expansion Valves (TXVs) and Electronic Expansion Valves (EEVs), and how technicians can optimize superheat for maximum efficiency. He emphasizes why proper system design and programming are key when pairing TXVs with inverter compressors, and how aftermarket TXVs offer flexibility for field applications. This episode is packed with technical knowledge, troubleshooting tips, and real-world applications, making it a must-listen for HVAC professionals looking to sharpen their skills and keep up with industry advancements. At Danfoss, Jamie Kitc

In this Episode of the HVAC Know It All Podcast, Host Gary McCreadie is Joined by Jamie Kitchen, an HVAC Expert from Danfoss, to Break Down How Heat Pump Thermostatic Expansion Valves (TXVs) Work and Why Check Valves are Essential. Jamie Kitchen explains the differences between heat pump Thermostatic Expansion Valves (TXVs) and straight cooling TXVs, why heat pump valves need built-in check valves, and how refrigerant flow reverses in heat pumps. They also discuss the evolution of expansion valves, the transition from pistons to TXVs and now to electronic expansion valves (EEVs), and why technicians often misdiagnose TXVs as the problem. This episode is packed with technical knowledge, troubleshooting tips, and expert insights that will help HVAC pros better understand metering devices, improve system performance, and reduce misdiagnoses. Jamie Kitchen shares insights on improving technician expertise and fostering a deeper understanding of heat pump TXVs and check valves. He highlights strategies such as

In this episode of theHVAC Know It All Podcast, Host Gary McCreadie sits down with Adam Mufich, an Expert in airflow diagnostics and technical trainer at theNational Comfort Institute (NCI). They will discuss deep into the critical role of airflow in HVAC systems, why static pressure doesn’t equal airflow, and how technicians can improve system performance with better diagnostics. Adam shares insights on the TrueFlow Grid, a Revolutionary tool for measuring airflow accurately, and explains how it integrates with MeasureQuick and NCI workflows to help technicians troubleshoot and optimize HVAC systems more efficiently. They also discuss common airflow mistakes, the importance of proper system sizing, and the impact of filter selection on performance. Expect to Learn: 1. Why airflow is the backbone of HVAC system performance. 2. How the TrueFlow Grid simplifies airflow measurement. 3. The difference between static pressure and airflow and why it matters. 4. How improper system sizing leads to airflow issues.

In this episode of the HVAC Know It All Podcast, hostGary McCreadie continues his chat withGreg Crumpton, Vice President atService Logic and Founder and Writer ofdeepKnowledge. Greg has spent over 40 years in the HVAC industry, and in Part 2, he shares his thoughts on where the trade is headed, touching on new installation methods, the rise of press fittings, and why lighter, more compact tools are becoming the norm. They also dig into indoor air quality (IAQ), breaking down common myths and what really works. Greg talks about how HVAC professionals can stay ahead of the game, embrace new technology, and build a strong career through mentorship and learning. He stresses the importance of education and leadership in solving the skilled labor shortage and helping the industry grow. At Service Logic, Greg focuses on business operations and workforce development, ensuring companies and technicians are set up for success. Through deepKnowledge, he shares insights about the industry in a way that’s easy to unders

In this episode of theHVAC Know It All Podcast, hostGary McCreadie sits down with HVAC veteranGreg Crumpton to dive deep into the 2025 industry outlook. With over four decades of experience, Greg offers valuable insights on A2L refrigerant transitions, AI-driven predictive maintenance, and the evolution of HVAC tools and technologies.  They discuss the psychological shift needed as the industry embraces mildly flammable refrigerants, and why technicians should be ready to adapt. From tool innovations and the rise of smart diagnostics to the importance of IAQ (Indoor Air Quality) post-COVID, this episode covers everything HVAC professionals need to stay ahead in the coming years.  Greg also emphasizes the importance of fostering a forward-thinking, professional HVAC community, where knowledge sharing and mentorship are key drivers of industry growth. He showcases how collaborative efforts, continuous education, and embracing technology can lead to substantial advancements within the trade. Their focus typicall

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his engaging discussion with Jennifer Manzo, a key innovator in the HVAC sector and chief trainer for SkillCat.In Part 2 of their conversation, they delve into Jennifer's unique experiences as a female trainer in a predominantly male industry, her approach to virtual training, and her active role in fostering a supportive community through initiatives like the HVAC Chicks Coalition. They explore how these efforts contribute to better training practices and enhance the overall dynamics within the HVAC field. Jennifer Manzo shares her comprehensive approach to elevating the competencies of both new and experienced technicians through tailored training sessions that cater to various skill levels. She discusses the inherent challenges and significant strides toward gender inclusivity within the traditionally male-dominated HVAC industry.  The episode covers everything from HVAC fundamentals to advanced diagnostics, aiming to build a sk

In this episode of the HVAC Know It All Podcast, host Gary McCreadie sits down with Jennifer Manzo, a chief trainer for SkillCat and a prominent figure in the HVAC community, known for her commitment to education and empowerment in the field. This is Part 1 of their discussion, focusing on the transformative role of training and community support within the HVAC industry.  Jennifer shares her experiences and insights into enhancing the skills of both novice and seasoned technicians through specialized training programs and discusses the challenges and opportunities of promoting gender inclusivity in a traditionally male-dominated field. The episode covers a range of topics from fundamental HVAC training to advanced diagnostic techniques, all aimed at fostering a more inclusive and skilled workforce.  Jennifer also highlights the impact of community-driven initiatives like the coalition, which provides free technical support and training, showcasing how collaborative efforts can lead to substantial industry ad

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with John Bartlett Founder and CEO of Brentwood Growth, a sell-side M&A advisory and consulting firm specializing in skilled trades businesses such as HVAC, plumbing, and electrical. Part 2 delves deeper into the critical steps involved in preparing a business for sale, exploring various buyer types and transaction structures. Brentwood Growth provides expert guidance to business owners across residential, industrial, and commercial sectors, working with service providers and contractors in industries including Boilers & Generators, Cleaning & Janitorial, Electrical, Elevator & Escalator, Fencing, Fire & Safety, Flooring, Foundation Repairs, Garage Door, Heat Pump, Home Appliance Service & Repair, Home Inspections, Industrial Equipment Service & Repair, Irrigation, Lawn Care, Mosquito & Pest, Painting, Paving, Plumbing, Pool Services, Property Management, Refrigeration, Restoration &

In this episode of the HVAC Know It All Podcast, host Gary McCreadie sits down with John Bartlett Founder and CEO of Brentwood Growth, a sell-side M&A advisor and consulting firm specializing in skilled trades businesses like HVAC, plumbing, and electrical. This is Part 1 of their discussion, focusing on how business owners can grow and scale their companies to maximize value. Brentwood Growth works with business owners in the residential, industrial, and commercial sectors, providing expert guidance for service providers and contractors across various industries, including Boilers & Generators, Cleaning & Janitorial, Electrical, Elevator & Escalator, Fencing, Fire & Safety, Flooring, Foundation Repairs, Garage Door, Heat Pump, Home Appliance Service & Repair, Home Inspections, Industrial Equipment Service & Repair, Irrigation, Lawn Care, Mosquito & Pest, Painting, Paving, Plumbing, Pool Services, Property Management, Refrigeration, Restoration & Remediation, Roofing, Secu