Hvac Know It All Podcast

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 supplier counterperson, the disconnect between technicians and suppliers, and why proper communication and product knowledge are crucial for success in the industry.Larry 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.Larry shares his

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 Kitchen fo

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 master

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.5. Why de

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 understand

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 typically f

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

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

Static pressure is the ballooning effect of a duct system and it's measured with a dual port manometer. Airflow is the measurement of air velocity (air speed) in the duct. Velocity is then converted to air flow using duct dimensions. Check out Jobber and all they have to offer. getjobber.com/hvacknowitall

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his discussion with David Rames, Senior Product Manager at Midea America Corp. This is Part 2 of their conversation, focusing on practical applications of heat pump technology and their performance in cold climates. David shares insights from a unique case study conducted in Alaska, where Midea's heat pumps were tested under extreme winter conditions. The episode also highlights the importance of addressing building envelopes to optimize HVAC efficiency and includes valuable tips for technicians to ensure high-quality installations. Gary and David further explore how advancements in heat pump technology have made these systems more reliable, efficient, and accessible, closing the gap between affordability and innovation. Expect to Learn: How Midea heat pumps excel in sub-zero conditions, as shown in an Alaska case study. The impact of building envelope improvements on system efficiency. Key installation tips to minimize call

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes David Rames, Senior Product Manager at Midea America Corp. This is Part 1 of this discussion, exploring advancements in heat pump technology and HVAC industry challenges. David, a product management expert with years of experience in HVAC innovation, discusses the evolution of heat pumps, addressing misconceptions about their performance in cold climates and their supposed complexity. Gary and David also examine the issues of equipment oversizing, the value of proper installation, and the advantages of communicating systems over traditional setups for enhanced comfort and efficiency. Expect to Learn: Discover how modern heat pumps are designed to perform efficiently in extreme cold climates. Learn why today’s heat pumps are easier to install, troubleshoot, and maintain. Understand the issues caused by oversized systems and how proper sizing improves efficiency and comfort. Explore the advantages of communicating systems ove

In this episode of the HVAC Know It All Podcast, host Gary McCreadie sits down with Jesse Stewart, National Training Manager at NAVAC HVAC to discuss the industry's transition to A2L refrigerants and the essential tools for safe and efficient handling. Jesse, a technical trainer with experience in HVAC tools and safety practices, shares insights into the challenges and opportunities of A2L refrigerants. He focuses on debunking myths and highlighting safety measures. Gary and Jesse discuss tool compliance, best practices, and the importance of training in preparing HVAC professionals for upcoming changes. Expect to Learn: What Are A2L Refrigerants?: Understand what A2L refrigerants are, why the industry is moving toward them, and clear up common misunderstandings. Tools That Get the Job Done: Learn about the tools that are compatible with A2L refrigerants, including vacuum pumps and recovery machines, and what makes them compliant. Staying Safe on the Job: Practical advice on reducing risks by using t

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Joshua Souders from Copeland for the second part of their conversation about advanced compressor technology. Josh brings his deep knowledge of HVAC systems to the table, focusing on variable-speed compressors, vapor injection, and how these innovations are changing the game for heat pumps. They dive into topics like how variable-speed compressors work, the challenges of oil delivery, and why vapor injection is key to making heat pumps effective in extremely cold climates. They also tackle common misconceptions about heat pump performance in freezing temperatures and discuss the DOE Cold Climate Heat Pump Challenge. If you’re in the HVAC industry, this is an episode you don’t want to miss. Expect to Learn: How Variable-Speed Compressors Operate: A clear breakdown of how these compressors adjust to meet heating and cooling demands while boosting efficiency. The Benefits of Vapor Injection: An explanation of how this technology improv

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Joshua Souders from Copeland for part one of an enlightening two-part series on compressors and their critical role in modern HVAC systems. Josh, a seasoned expert in compressor technology, shares his wealth of knowledge, diving deep into the mechanics and benefits of single-speed, two-stage, and variable-speed compressors. Gary and Josh discuss how each type of compressor operates, the unique advantages they offer, and their application in heat pumps, particularly in cold climates. They also touch on the challenges and misconceptions surrounding heat pump performance in sub-freezing temperatures. Packed with technical details, and expert advice, this episode is a must-listen for HVAC professionals looking to stay up-to-date with industry trends. Expect to Learn: Understanding Compressors: Explore the key differences and benefits of single-speed, two-stage, and variable-speed compressors. Improving Heat Pumps: Learn how advanced co

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Rachel Samala, CEO of California Mechanical, Heating & Air Conditioning. She is an HVAC technician, content creator known as ‘Miss Mini Split’ on Instagram. Based in San Diego, Rachel has over a decade of experience in the HVAC trade and has built a reputation for her innovative approaches to mini split installations. Gary and Rachel dive into the essentials of mini split installation, offering practical tips, unique mounting techniques, and insights into the growing popularity of mini splits in California’s housing market. Rachel shares how her dedication to precision, affordability, and customer satisfaction has made her a trusted expert in the field. Through anecdotes from her career and hands-on advice, Rachel inspires HVAC professionals to adopt efficient methods, maintain high standards of installation, and embrace the evolving technology of mini splits. Expect to Learn: Mini Splits in Affordable Housing: Discover why min

Gary McCreadie takes us through a quick recap of 2024 and what's to come in 2025 for HVAC professionals. Check out our latest article on AI and how if will effect the HVAC industry. https://hvacknowitall.com/blog/navigating-ai-and-automation-a-technicians-guide-for-2025 Follow the Host: LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/  Website: www.hvacknowitall.com  Facebook: www.facebook.com/hvacknowitall/   Instagram: www.instagram.com/hvacknowitall1/  

In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Brent Lammert, who leads the Thermal Imaging Business Unit at Testo Instruments - North America. In part two of this insightful discussion, Brent dives deeper into the transformative applications of thermal imaging for HVAC professionals, showcasing its practical uses in diagnosing and resolving real-world challenges with speed and precision. Gary and Brent explore specific scenarios where thermal cameras excel, such as identifying refrigerant restrictions, pinpointing hydronic system issues, and inspecting steam humidification systems. Brent also explains the role of thermal imaging during blower door tests to detect building envelope leaks and highlights the cost-saving potential for HVAC businesses using this technology. From troubleshooting complex systems to improving customer satisfaction through faster, more accurate diagnostics, this episode offers practical advice and inspiring insights for HVAC techn