
HVAC Know It All Podcast
By HVAC Know It All


How to Clean HVAC Coils Without Causing Corrosion or Voiding OEM Guidelines | John Pastorello Part 2
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 those with corrosion inhibitors, to protect delicate HVAC components. They discuss how proper cleaning techniques improve system efficiency and lifespan. John highlights the benefits of advanced cleaning products designed for both evaporator and condenser coils and why HVAC professionals should stay updated on the latest cleaning technologies. They also cover how technicians can use these specialized cleaners effectively to maintain peak system performance and reduce energy costs.
This episode is packed with essential HVAC cleaning knowledge, valuable business insights, and advanced maintenance techniques. It helps technicians understand the importance of using the right coil cleaners, enhance system performance, and explore how innovative cleaning products and practices can improve efficiency and reduce energy consumption.
Expect to Learn:
How poor cleaning and maintenance can shorten an HVAC system’s lifespan.
Why standard cleaning agents can harm systems, while specialized coil cleaners with corrosion inhibitors offer better protection.
The right cleaning techniques and products to prevent component damage.
Common myths about HVAC cleaning and how they affect efficiency.
How HVAC technicians can improve service quality and system performance with advanced cleaning solutions.
Episode Highlights:
[00:33] – Introduction to the Second Part of the Episode with John Pastorello
[01:33] – Risks of wrong cleaners vs. benefits of corrosion-protective solutions.
[02:44] – How corrosion inhibitors in coil cleaners protect HVAC systems after cleaning.
[03:25] – Choosing the right coil cleaner and using rinse aids correctly for better results.
[05:55] – Safe cleaning for aluminum components and the role of pH in maintaining coils.
[08:07] – Practical Application and Safety of High pH Coil Cleaners
[09:52] – Comparing Evaporator and Condenser Coil Cleaners
[11:28] – Biofilms and Coil Degreasing: Microbial Growth and Safe Cleaning Practices
[15:25] – Effective Coil Cleaning: Importance of Dwell Time and Final Thoughts
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest John Pastorello on:
LinkedIn: https://www.linkedin.com/in/john-pastorello-9a6b8328/
Refrigeration Technologies: https://www.linkedin.com/company/refrigeration-technologies/people/
Website: https://www.refrigtech.com/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

The Best Coil Coating for HVAC Techs to Prevent Rust & Equipment Failure with John Pastorello Part 1
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 from environmental damage. They also discuss how the right techniques and innovative products help keep systems in top shape while cutting down on maintenance costs. Plus, they explore how these advanced coatings prevent rust and corrosion, helping HVAC equipment last longer.
This episode offers useful HVAC tips, covers industry challenges, and provides real solutions to help technicians understand metal corrosion, improve system durability, and apply advanced protective coatings for better performance.
Expect to Learn:
Why metal corrosion is a significant concern and how it affects HVAC system durability.
The limitations of traditional protective coatings and the advantages of advanced coil coatings.
How applying protective coatings properly can extend the life and efficiency of HVAC components.
Common misconceptions about metal protection in HVAC systems and their impact on system longevity.
How modern technologies are revolutionizing the approach HVAC professionals take towards protecting and maintaining their equipment.
Episode Highlights:
[00:00] – Introduction to John Pastorello
[01:58] – Protective Coil Coatings: Essential for HVAC Maintenance
[03:37] – Viper Coil Coating: The Innovation for Corrosion Prevention
[06:34] – Minimizing Heat Loss: How Coating Thickness Affects Efficiency
[09:46] – Field Application vs. Factory Application: Durability & Longevity
[10:56] – Temperature Limits and Durability of Protective Coatings
[13:24] – Practical Applications: Protecting Various HVAC Components
[15:40] – Coil Cleaning Challenges: Debunking the "Use Water Only" Myth
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest John Pastorello on:
LinkedIn: https://www.linkedin.com/in/john-pastorello-9a6b8328/
Refrigeration Technologies: https://www.linkedin.com/company/refrigeration-technologies/people/
Website: https://www.refrigtech.com/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

How HVAC Contractors Can Seal 90% of Duct Leaks Without Replacing Ductwork | Dr. Mark Modera Part 2
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 techniques.
Dr. Mark Modera discusses the challenges HVAC contractors face with duct leaks and why traditional sealing methods fall short compared to modern solutions like Aeroseal. He highlights the importance of measuring and verifying duct leakage, the need for continuous education in building science, and how technology is making duct sealing more accurate and accessible. They also explore how HVAC contractors can become Aeroseal dealers, the business opportunities it presents, and how proper diagnostics and sealing techniques can smooth system performance while reducing energy waste.
This episode is filled with practical HVAC insights, business opportunities, and advanced sealing techniques, helping technicians understand duct leaks, enhance system performance.
Expect to Learn:
How duct leaks affect HVAC performance and energy performance.
Why traditional duct sealing methods fall short compared to Aeroseal.
The importance of measuring and verifying duct leakage for better results.
Common myths about duct sealing and their impact on system performance.
How HVAC contractors can integrate Aeroseal into their services for greater success.
Episode Highlights:
[00:33] – Introduction to the Second Part of the Episode with Dr. Mark Modera
[02:13] – How HVAC Contractors Can Offer Aeroseal: Training, Dealer Opportunities & Service Integration
[05:06] – How Aeroseal Works, Seals Leaks & Expands for Faster, More Accessible Applications
[07:34] – What Size Leaks Can Aeroseal Handle? Practical & Physical Limits
[08:55] – Where to Install the Aeroseal Machine & How It’s Applied in Different Systems
[09:49] – Protecting Coils & Heat Exchangers During the Sealing Process
[11:08] – The Role of the Building Science Community in Duct Sealing Advancements
[13:03] – How Aeroseal is Helping Large Commercial Projects & Specialized Applications
[14:45] – How Much Leakage Remains After Using Aeroseal?
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest Dr. Mark Modera on:
LinkedIn: https://www.linkedin.com/in/mark-modera-94432212/
Aeroseal: https://www.linkedin.com/company/aeroseal-llc/about/
University of California: https://www.linkedin.com/school/uc-davis/
Berkeley Lab: https://www.linkedin.com/company/lawrence-berkeley-national-laboratory/
Carrier HVAC: https://www.linkedin.com/company/carrierhvac/
Website:
Aeroseal: https://aeroseal.com/
Carrier HVAC: https://www.carrier.com/carrier/en/worldwide/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

Choosing The Right Customer For Your Business: HVAC Monthly Tech Tip
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

How Aeroseal Seals Duct Leaks from the Inside to Stop HVAC Energy Waste with Dr. Mark Modera | Part 1
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 building science, and how technology is making duct sealing better for improved system performance. They also discuss how clear communication, better diagnostics, and advanced sealing techniques can help HVAC professionals improve performance and reduce energy waste.
This episode is packed with practical HVAC tips, industry challenges, and real solutions to help technicians learn about duct leaks, boost system performance, and use better sealing methods for improved performance.
Expect to Learn:
Why duct leakage is a major issue and how it impacts HVAC system performance.
The limitations of traditional duct sealing methods and the benefits of Aeroseal.
How verifying and measuring duct leakage can improve energy efficiency.
Common misconceptions about duct sealing and their impact on home comfort.
How modern technology is transforming the way HVAC professionals approach duct sealing.
Episode Highlights:
[00:00] – Introduction to Dr. Mark Modera
[01:30] – Understanding Aeroseal: How It Works & How It Differs from Air Barrier Sealing
[03:46] – The Impact of Duct Leakage on Energy Bills, Airflow & Home Comfort
[07:24] – The Invention of Aeroseal: Dr. Mark Modera's Breakthrough & Impact on Duct Sealing & Energy Savings
[11:12] – The Evolution of Heat Pump Technology & the Need for Better Duct Sealing Solutions
[14:11] – How Aeroseal Was Developed & Its Impact on Basement Duct Leakage and Air Distribution
[15:56] – Why Aeroseal is a Game-Changer for Hard-to-Reach Duct Leaks
[18:01] – How Long Does Aeroseal Take? Setup, Application & Real-Time Leakage Monitoring
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest Dr. Mark Modera on:
LinkedIn: https://www.linkedin.com/in/mark-modera-94432212/
Aeroseal: https://www.linkedin.com/company/aeroseal-llc/about/
University of California: https://www.linkedin.com/school/uc-davis/
Berkeley Lab: https://www.linkedin.com/company/lawrence-berkeley-national-laboratory/
Carrier HVAC: https://www.linkedin.com/company/carrierhvac/
Website:
Aeroseal: https://aeroseal.com/
Carrier HVAC: https://www.carrier.com/carrier/en/worldwide/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

HVAC Techs Are Overcharging Heat Pumps in Cold Weather with Jim Bergmann | Part 2
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 system charges, leveraging automation in diagnostics, and continuously learning to stay ahead in the industry. Plus, they explore how measureQuick’s tools streamline charging for both Termostatic Expansion Valves TXVs and fixed orifice systems, reducing errors and improving overall system performance.
This episode is filled with real-world HVAC insights, innovative charging techniques, and practical solutions to help technicians improve accuracy, optimize system performance, and adapt to low ambient conditions with the right tools and technology.
Expect to Learn:
Why ongoing education is essential for technicians to master low ambient charging.
How modern HVAC tools like measureQuick simplify refrigerant charging and diagnostics.
The importance of verifying system charge to prevent overcharging and inefficiencies.
How traditional charging methods can lead to costly mistakes in low ambient conditions.
How automation, charging blankets, and better practices improve HVAC efficiency.
Episode Highlights:
[00:00] – Introduction to the Second Part of the Episode with Jim Bergmann
[02:17] – Understanding Refrigerant Charging Curves for Heating and Cooling in HVAC
[04:04] – How measureQuick Automates Low Ambient Charging for TXVs & Fixed Orifice Systems
[05:19] – Talking About Charging Blankets and its Automation in HVAC Testing
[06:14] – Safe Ways to Warm Refrigerant Tanks & Why Hot Water Baths Can Be Risky
[08:04] – Hydrostatic Force & Refrigerant Expansion: Understanding System Pressures
[09:02] – Avoiding Dangerous Charging Mistakes & Lessons from Field Experience
[11:56] – Optimizing Vacuum Pump Performance & System Charging in Cold Weather
[14:01] – NAVAC & measureQuick Partner with HVAC Manufacturers to Advance AI-Driven Diagnostics
[15:10] – Final Thoughts & Discussing the Integration of HVAC Tools with measureQuick
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com
Cool Air Products: https://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com
Follow the Guest Jim Bergmann on:
LinkedIn: https://www.linkedin.com/in/jim-bergmann-2968178/
measureQuick : https://www.linkedin.com/company/measurequick-application/
Redfish Instruments Inc: https://www.linkedin.com/company/redfish-instruments/
Download the measureQuick App here:
https://play.google.com/store/apps/details?id=com.measurequick.hvac
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook:https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

How Factory Refrigerant Charges Are Frequently Wrong & Mislead HVAC Pros with Jim Bergmann | Part 1
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. Plus, they explore how better communication and tools can help prevent costly mistakes in the field.
This episode is packed with real-world HVAC insights, technical challenges, and practical advice to help technicians enhance their skills and system efficiency under various conditions.
Expect to Learn:
The importance of continuous education for technicians to enhance system management.
The role of modern HVAC diagnostic tools and the challenges in traditional charging methods.
Why technicians should verify system charges and conditions accurately.
How outdated techniques and misconceptions lead to costly errors in system optimization.
How technology like measureQuick and better practices can streamline HVAC operations and improve efficiency.
Episode Highlights:
[00:00] – Introduction to Jim Bergmann
[00:57] – Discussion on Low Ambient Charging and Charging Blankets with Jim Bergmann
[04:12] – Charging Blanket Benefits, measureQuick Integration & TXV System Management
[07:14] – Charging Blankets & HVAC in Low Ambient: Ideal optimization & Challenges
[09:43] – The Role of Fan Cycle Control in Stabilizing System Performance
[11:16] – Limitations and Appropriate Conditions for Charging Blanket Use
[13:05] – Discussion on Proper Charging Techniques
[14:36] – Real-life Example of Adjusting Charges in New HVAC Units
[15:17] – Flooded Condenser Controls & Charging Blankets: Benefits and Challenges
[16:56] – Procedure of Charging Blanket Techniques to Heat Pumps
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest Jim Bergmann on:
LinkedIn: https://www.linkedin.com/in/jim-bergmann-2968178/
measureQuick : https://www.linkedin.com/company/measurequick-application/
Redfish Instruments Inc: https://www.linkedin.com/company/redfish-instruments/
Download the measureQuick App here:
https://play.google.com/store/apps/details?id=com.measurequick.hvac
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

Why HVAC Techs Keep Blaming Suppliers Instead of Fixing Their Own Mistakes | Laurence Michelson Part 2
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 create major inefficiencies and how both technicians and suppliers can work together to improve service quality.
This episode is filled with practical insights, industry challenges, and real-world solutions. It is a must-listen for HVAC professionals looking to improve supplier relationships, enhance communication, and navigate the evolving HVAC supply chain effectively.
At Tropic Supply and other leading distributors, Laurence Michelson has gained deep expertise in HVAC supply chain management, helping technicians navigate parts ordering, supplier relationships, and industry challenges. He highlights the disconnect between counter staff and technicians, emphasizing the importance of communication, training, and technology in improving service efficiency. With years of experience in HVAC logistics, brand ownership changes, and supplier operations, Laurence provides valuable insights for professionals looking to streamline their workflow and build stronger industry connections.
Expect to Learn:
Why effective communication between HVAC technicians and suppliers is critical.
How lack of automation in HVAC supply impacts efficiency and logistics.
The biggest challenges counter staff face when dealing with technicians.
Why returned parts create major issues in the HVAC supply chain.
How technology can streamline transactions and improve supplier relationships.
Episode Highlights:
[00:33] – Introduction to the Second Part of the Episode with Laurence Michelson
[02:40] – Key Challenges in HVAC Supply: Communication, Automation & Returned Parts.
[07:15] – What HVAC Counter Staff Need from Technicians to Keep Supply Operations Smooth.
[09:25] – Language Barriers, Technology, and the Increasing Burden on HVAC Counter Staff.
[14:26] – Discussion on HVAC brand ownership, qualities of a good counter person, technician challenges, and building strong supplier relationships.
[18:41] – Examination of knowledge gaps, miscommunication, and the role of technology in HVAC supply dynamics.
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com
Cool Air Products: https://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com
Follow the Laurence Michelson on:
LinkedIn: https://www.linkedin.com/in/ljmfla/
ObjectStep: https://www.linkedin.com/company/objstep/
AlphaSights: https://www.linkedin.com/company/alphasights/
A&R Supply South Florida: https://www.linkedin.com/company/a-r-supply-south-florida/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook:https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

Why HVAC Techs Keep Getting the Wrong Parts and Losing Money with Laurence Michelson Part 1
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.
Laurence shares his perspective on the responsibilities of counter staff and technicians, the impact of poor communication on business operations, and why verifying parts is crucial. He emphasizes the need for supplier training, the role of technology in HVAC distribution, and how better collaboration can prevent costly mistakes. This episode provides valuable lessons for HVAC professionals looking to streamline their workflow and strengthen supplier relationships.
Expect to Learn:
1.The importance of training for counter staff to improve service quality.
2. The role of HVAC suppliers and the challenges faced behind the counter.
3. Why technicians should verify parts before leaving the supplier.
4. How poor communication between suppliers and technicians leads to costly mistakes.
5. How technology and better processes can streamline HVAC supply operations.
Episode Highlights:
[00:00] – Introduction to Laurence Michelson
[01:04] – Laurence’s HVAC Supply Journey: Technology, Challenges & Industry Change.
[06:33] – HVAC Supply Mistakes: Why Verification & Education Matter.
[11:02] – How Top Suppliers Train Staff & Adapt to A2L Refrigerants in HVAC & Multiple Trades.
[14:45] – Why HVAC Suppliers Struggle with Parts Accuracy & Information Access.
[18:12] – The Counter Phone Struggle: Why Calls Get Delayed & How to Improve It
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest Laurence Michelson on:
LinkedIn: https://www.linkedin.com/in/ljmfla/
ObjectStep: https://www.linkedin.com/company/objstep/
AlphaSights: https://www.linkedin.com/company/alphasights/
A&R Supply South Florida : https://www.linkedin.com/company/a-r-supply-south-florida/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/

Coil Cleaners : HVAC Monthly Tech Tip
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

How Europe is Beating North America in HVAC Innovation | Jamie Kitchen | Part 2
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 focuses on HVAC system optimization, helping technicians master TXVs, check valves, and inverter-driven heat pumps. He simplifies complex concepts, making it easier for professionals to diagnose and improve system performance. With expertise in refrigerant flow, superheat control, and expansion valve technology, Jamie provides valuable insights for those looking to stay ahead in the HVAC industry.
Expect to Learn:
1. How check valves in heat pump TXVs work and why they matter.
2. The key differences between North American and European TXV designs.
3. How inverter-driven heat pumps impact metering devices.
4. The role of TXVs vs. electronic expansion valves (EEVs) in system efficiency.
5. Why proper superheat control is crucial for optimizing HVAC performance.
Episode Highlights:
[00:33] – Introduction to Second Part of the Episode with Jamie Kitchen
[02:09] – TXVs in Europe vs. North America: Design, Function & Industry Choices
[03:45] – HVAC Innovation: Is North America Falling Behind Due to Energy Costs?
[08:04] – TXVs vs. EEVs: How Inverter Heat Pumps & Metering Devices Affect Performance
[12:22] – TXVs & Inverter Compressors: Compatibility, Control, and Adjustments.
[16:22] – Final Thoughts: Optimizing Superheat for Efficiency & System Stability
[18:52] – Closing Remarks & Future Meetups
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com
Cool Air Products: https://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com
Follow the Jamie Kitchen on:
LinkedIn: https://www.linkedin.com/in/jamie-kitchen/
Danfoss: https://www.linkedin.com/company/danfoss/
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LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
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How TX Valves Adapt to Multiple Refrigerants and Improve Heat Pumps | Jamie Kitchen | Part 1
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 mastering refrigerant flow dynamics, adopting universal TXV kits, and recognizing common misdiagnoses. This episode provides practical advice for HVAC professionals looking to enhance their troubleshooting skills, work more efficiently with modern TXVs, and stay ahead in the ever-evolving HVAC industry.
Expect to Learn:
1.The key differences between heat pump Thermal Expansion Valves (TXVs) and straight cooling TXVs
2. Why built-in check valves are crucial for heat pump operation
3. How refrigerant flow reversal works and why it impacts TXV performance
4. The transition from pistons to TXVs to electronic expansion valves (EEVs)
5. Common misconceptions and troubleshooting tips for TXV-related issues
Episode Highlights:
[00:00] – Introduction to Jamie Kitchen
[01:31] – Understanding Heat Pump Thermostatic Expansion Valves (TXVs), Check Valves & SEER 13 Transition Lessons.
[03:24] – TXVs vs. EEVs: Key Differences & the Importance of Precise Control
[05:26] – TR6 Valve in HVAC: OEM vs. Aftermarket TXVs & the Simplicity of Universal TXV Kits.
[10:07] – Secret Sauce in TXV Bulbs: How refrigerant mixtures impact performance
[15:23] – The Role of Check Valves in Heat Pumps. Preventing reverse flow issues.
[16:28] – How the Check Valve Works in TXVs. Simplifying installation & reducing leaks
[18:08] – Refrigerant Flow & Check Valves. The path of least Resistance Explained
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest Jamie Kitchen on:
LinkedIn: https://www.linkedin.com/in/jamie-kitchen/ Danfoss: https://www.linkedin.com/company/danfoss/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
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Instagram: https://www.instagram.com/hvacknowitall1/

Why Most HVAC Systems Fail Due to High Static Pressure and Poor Airflow with Adam Mufich
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 deeper pleated filters outperform one-inch filters.
Episode Highlights:
[00:33] – Introduction to the Episode with Adam Mufich
[02:23] – How Important Is Airflow? Adam Explains Why it's a 10/10
[03:35] – Right Way to Sell HVAC Services: Solution-Based Selling & the Role of Airflow Measurement.
[06:19] – The TrueFlow Grid: Accurate Airflow Measurement Beyond Ductwork Limitations.
[10:56] – Static Pressure vs. Airflow Understanding the key differences
[13:29] – TrueFlow Grid & NCI: Optimizing Airflow with Fan Law 2.
[21:28] – Undersized Ducts or Oversized Equipment? The Key to Proper Airflow.
[26:03] – The Deep Pleat Filter Advantage, More surface area = better airflow
[29:25] – Can Better Filtration Reduce White Slime?
[31:45] – UV Lights, Drain Pans & Biofilm, Do UV lights really help?
[33:38] – Final Thoughts: How to Improve Your Airflow Game.
This Episode is Kindly Sponsored by:
Master:https://www.master.ca/
Cintas:https://www.cintas.com/
Supply House:https://www.supplyhouse.com
Cool Air Products:https://www.coolairproducts.net
Lambert Insurance Services:https://www.lambert-ins.com
Follow the Adam Mufich on:
LinkedIn:https://www.linkedin.com/in/adam-mufich-5225055a/
National Comfort Institute:https://www.linkedin.com/company/national-comfort-institute/
Master HVAC diagnostics with Measure Quick & True Flow Grid! 🚀Click the links below to download and start optimizing airflow like a pro! 🔧📊
Measure Quick App:https://play.google.com/store/apps/details?id=com.measurequick.hvac
TrueFlow HVAC Air Flow:https://play.google.com/store/apps/details?id=com.energyconservatory.hvactester&pcampaignid=web_share
Follow the Host:
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How Compact HVAC Tools Are Revolutionizing Tech Efficiency | Greg Crumpton | Part 2
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, and his books available at Barnes & Noble and Amazon help HVAC pros level up their knowledge. His experience covers commercial, industrial, and residential HVAC, with expertise in smart diagnostics, predictive maintenance, and building automation, all key areas shaping the future of the trade.
Expect to Learn:
1. The growing role of press fittings in HVAC and how they compare to brazing.
2. Why compact, lightweight tools are becoming essential for modern technicians.
3. Indoor air quality (IAQ) solutions debunking myths around UV lights and filtration.
4. The importance of mentorship, training, and knowledge-sharing in HVAC.
5. How the HVAC industry is evolving and what professionals must do to stay ahead.
Episode Highlights:
[00:00] – Introduction to Second Part of the Episode with Greg Crumpton
[01:08] – The Rise of Press Fittings Technology in HVAC
[04:41] – Brazing vs. Pressing in Technician’s Perspective
[08:12] – How compact, lighter tools are changing trades.
[11:28] – Backpacks vs. Tool Bags: Finding the Best Setup for Efficiency and Safety.
[13:30] – Effectiveness of UV lights in HVAC systems for improving indoor air quality
[22:26] – Mentorship: A Solution to HVAC's Skilled Labor Shortage.
[24:13] – Greg’s Book: Deep Knowledge, The importance of continuous learning in HVAC.
[28:09] – Final Thoughts on Embracing Change for HVAC's Future.
This Episode is Kindly Sponsored by:
Master:https://www.master.ca/
Cintas:https://www.cintas.com/hvacknowitall
Supply House:https://www.supplyhouse.com
Cool Air Products:https://www.coolairproducts.net
Lambert Insurance Services:https://www.lambert-ins.com
Follow the Guest Greg Crumpton on:
LinkedIn:https://www.linkedin.com/in/crumptonskilledtrades/
Service Logic:https://www.linkedin.com/company/service-logic/
DeepKnowledge Book:https://www.linkedin.com/company/deepknowledge-me/
Get your copy ofDeepKnowledge by Greg Crumpton and explore a world of wisdom and research.
VisitdeepKnowledge.meto learn more!
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AI Predictive Maintenance in HVAC for Techs to Maximize Performance | Greg Crumpton | Part 1
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 falls into two categories:
Educate: HVAC technicians and professionals striving to deepen their understanding of evolving industry trends from navigating A2L refrigerant transitions to adopting predictive maintenance and AI-driven diagnostics. This is achieved through continuous learning, adapting to new tools, and staying updated on best practices.
Empower:Individuals within the HVAC sector who aim to enhance their professional development by embracing technology shifts, fostering innovation, and contributing to a culture of knowledge sharing. This includes staying open to emerging tools like press fittings and smart diagnostic systems, while nurturing the next generation of HVAC talent.
Greg shares insights on strengthening technician skill sets and fostering a culture of professionalism within the industry. He highlights strategies such as embracing new technologies, understanding industry standards, and mentoring newcomers to help bridge the skilled labor gap.
The episode offers practical advice for HVAC professionals looking to refine their craft, adopt innovative tools, and position themselves as leaders in the evolving HVAC landscape.
Expect to Learn:1. The A2L refrigerant transition, what it means for HVAC professionals in 2025.2. How predictive maintenance and AI are transforming HVAC service strategies.3. The evolution of HVAC tools from traditional gauges to smart diagnostics and compact tech4. Why press fittings are gaining traction over brazing and their future in HVAC.5. How to navigate the Indoor Air Quality (IAQ) landscape in a post-pandemic world..
Episode Highlights:
[00:33] – Introduction & Greg’s New Book Announcement
[02:10] – The 2025 HVAC Outlook, Key industry changes and trends on the horizon.
[03:00] – A2L Refrigerants & Safety Concerns and facts about mildly flammable refrigerants.
[07:22] – Tool Safety & Compatibility. Understanding recovery machine requirements for A2Ls
[11:24] – AI & Predictive Maintenance and Resistance to Change in Residential HVAC.
[19:03] – OEMs vs Third-Party Control Systems.
This Episode is Kindly Sponsored by:
Master:https://www.master.ca
Cintas:https://www.cintas.com/hvacknowitall
Supply House:https://www.supplyhouse.com
Cool Air Products:https://www.coolairproducts.net
Lambert Insurance Services:https://www.lambert-ins.com
Follow the Guest Greg Crumpton on:
LinkedIn:https://www.linkedin.com/in/crumptonskilledtrades/
Service Logic:https://www.linkedin.com/company/service-logic/
Follow the Host:
LinkedIn:https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
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Instagram:https://www.instagram.com/hvacknowitall1/

Noninvasive HVAC Testing for Techs to Save Time and Cut Refrigerant Loss with Jennifer Manzo | Part 2
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 skilled and diverse workforce. Jennifer highlights the impact of community initiatives like her coalition, which provides free technical support and training, showcasing how collaboration can elevate industry standards.
In this part of the discussion, Jennifer outlines how their clients generally fall into two pivotal categories:
Educate: This group consists of technicians and HVAC professionals eager to advance their technical skills and industry understanding, from foundational concepts to complex diagnostics, all facilitated through expert-led training sessions and community-driven support initiatives.
Empower: Individuals within the HVAC industry who strive to boost their professional standing, effectively navigate gender dynamics, and make a positive impact on the community via inclusive and supportive educational platforms.
Jennifer discusses enhancing technician training and promoting gender inclusivity through community support, specialized knowledge, and mentorship. The episode offers practical tips for HVAC professionals to grow their skills and advance their careers.
Expect to Learn:
Jennifer Manzo's innovative training approaches with SkillCat, spanning from basic HVAC fundamentals to sophisticated diagnostic techniques suitable for technicians at all levels.
The impact of gender dynamics on professional development and community within the HVAC industry, along with strategies to foster inclusivity.
The role of a specialized expert coalition in resolving intricate HVAC challenges effectively and efficiently.
The significant advantages of community-led initiatives that enhance industry collaboration and provide educational opportunities.
Episode Highlights:
[00:00] - Introduction to Part 2 with Guest Jennifer Manzo from SkillCat.
[02:00] - The Importance of HVAC Community & Tech Support
[03:38] - Challenges with Manufacturer Support & Training [06:38] - What is Noninvasive Testing?
[09:53] - Why Technicians Should Stop Gauging Up on Every Service Call
[13:42] - The Role of Measure Quick & Smart Tools
[18:32] - How Thermal Imaging Helps HVAC Professionals
[20:57] - Entrepreneurial Freedom: The Power of Saying No
[23:44] - Real-World HVAC Scenarios & Lessons Learned
[24:56] - Jennifer’s Podcast & Future Collaboration.
This Episode is Kindly Sponsored by:
Master: https://www.master.ca
Cintas: https://www.cintas.com/hvacknowitall
Supply House: https://www.supplyhouse.com
Cool Air Products: https://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com
Follow the Guest Jennifer Manzo on:
LinkedIn: https://www.linkedin.com/in/hvachicks-jennifer-206832280/
SkillCat: https://www.linkedin.com/company/skillcat/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/HVAC-Know-It-All-2/
Instagram: https://www.instagram.com/hvacknowitall1/

Fixing HVAC Errors by Mastering Refrigeration and Electrical Fundamentals | Jennifer Manzo | Part 1
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 advancements.
Their clients typically fall into two categories:
Educate: Technicians and HVAC professionals seeking to enhance their technical skills and understanding of the industry, from fundamentals to advanced diagnostics, facilitated by expert-led training sessions and community support initiatives.
Empower: Individuals within the HVAC industry aiming to elevate their professional standing, navigate gender dynamics, and contribute positively to the community through inclusive and supportive educational platforms.
Jennifer shares insights on enhancing technician training programs and promoting gender inclusivity in the workplace, highlighting strategies such as community-driven support networks, access to specialized knowledge, and fostering a culture of respect and mentorship. The episode provides actionable advice for HVAC professionals looking to enhance their skills, foster positive community interactions, and prepare for advanced roles within the industry..
Expect to Learn:
1. Key HVAC training methods from SkillCat, covering fundamental to advanced techniques for all technicians.
2. How gender dynamics influence professional growth and community in the HVAC industry.
3. Effective resolution of complex HVAC issues using a specialized expert coalition.
4. The benefits of community initiatives for industry collaboration and educational enrichment.
5. Inspirational personal journeys in HVAC, showcasing the influence of educational platforms like HVAC Know It All.
Episode Highlights:
[00:00] - Introduction to Part 1 with Guest Jennifer Manzo from SkillCat.
[02:56] - In-depth Discussion on HVAC Training and Industry Trends
[05:54] - Reinforcing Fundamentals with Experienced Technicians
[08:17] - Addressing Gender Dynamics and Training Challenges in HVAC
[14:40] - Balancing Multiple Roles and Expanding the Coalition's Reach
[19:16] - Growth and Community Support of the Coalition
[22:12] - Expanding Influence and Partnerships in the HVAC Community
This Episode is Kindly Sponsored by:
Master: www.master.ca
Cintas: www.cintas.com/hvacknowitall
Supply House: www.supplyhouse.com
Cool Air Products: www.coolairproducts.net
Lambert Insurance Services: www.lambert-ins.com
Follow the Guest Jennifer Manzo on:
LinkedIn: https://www.linkedin.com/in/hvachicks-jennifer-206832280/
SkillCat: https://www.linkedin.com/company/skillcat/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/HVAC-Know-It-All-2/
Instagram: https://www.instagram.com/hvacknowitall1/

Selling Your Business the Right Way to Protect Your Legacy and Maximize Profit with John Bartlett | Part 2
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 & Remediation, Roofing, Security, Solar Installation, Tank Removal, Waste Removal & Recycling, and Windows & Doors.
Brentwood Growth primarily assists two types of clients:
Sell: Business owners planning to sell in the near future, seeking insights into valuation, potential buyers, and transaction timelines.
Scale: Business owners focused on growing their companies with the goal of increasing value for a future sale or smoother self-management.
In this episode, John discusses effective ways to enhance business value by improving financial performance and mitigating risks. He provides valuable insights on strengthening management teams and shifting focus from project-based work to recurring service and maintenance models. Contractors will gain practical strategies to prepare their businesses for a successful transition.
Expect to Learn:
The step-by-step process of getting a business ready for sale.
Insights into different types of buyers and their acquisition strategies.
Effective financial planning and operational improvements to boost value.
How to identify and select the right buyer for your business.
The impact of various transaction structures on business sales.
Episode Highlights:
[00:00] - Introduction to Part 2 with John Bartlett from Brentwood Growth.
[01:30] - Why business owners often stay involved after a sale
[03:10] - Preparing a business for sale and steps for retiring owners
[12:12] - Three buyer types: private equity, strategic buyers, and owner-operators.
[15:53] - Message to private equity buyers emphasizing the need for skilled, properly trained technicians
[18:40] - Closing discussion on the importance of selling to the right buyer to maintain client trust
This Episode is Kindly Sponsored by:
Master: https://www.master.ca
Cintas: https://www.cintas.com/hvacknowitall
Supply House: https://www.supplyhouse.com
Cool Air Products: https://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com
Follow the Guest John Bartlett on:
LinkedIn: https://www.linkedin.com/in/johnlbartlett/
John Bartlett’s Bio : https://www.brentwood-growth.com/our-team/john-bartlett/
Brentwood Growth: https://www.linkedin.com/company/brentwood-growth/
Phone: 908-377-7807 Email: jbartlett@brentwoodgrowth.com
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/HVAC-Know-It-All-2/
Instagram: https://www.instagram.com/hvacknowitall1/

How to Make Your HVAC Business More Valuable to Sell for Maximum Profit with John Bartlett | Part 1
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, Security, Solar Installation, Tank Removal, Waste Removal & Recycling, and Windows & Doors.
Their clients typically fall into two categories:
Sell: Business owners looking to sell soon, seeking insights on valuation, buyer groups, and transaction timelines.
Scale: Business owners aiming to grow their business for a future sale or self-management, focused on increasing value over time.
John shares insights on increasing business worth by improving cash flow and reducing risks, highlighting strategies such as building a strong management team and transitioning from project-based to service and maintenance models. The episode provides actionable advice for contractors looking to future-proof their businesses and prepare for potential sales.
Expect to Learn:
1. How to determine your business's true value through cash flow analysis.
2. The importance of shifting from construction to service and maintenance for Predictable Revenue.
3. Key strategies to remove operational risks and boost marketability.
4. The role of strategic planning in long-term business growth.
5. How Brentwood Growth helps contractors navigate mergers and acquisitions.
Episode Highlights:
[00:33] - Introduction to Part 1 with guest John Bartlett from Brentwood Growth
[02:28] - Selling a Skilled Trades Business
[05:15] - Growing and Scaling for a Future Sale
[08:56]- Increasing Business Value
[12:59] - Construction and the Economy & Importance of Service and Maintenance
[16:16] - Small Changes to Increase Business Value
[20:13] - Consistency and Growth: What We Can Learn from McDonald’s and the E-Myth
This Episode is Kindly Sponsored by:
Master:http://www.master.ca Cintas: http://www.cintas.com/hvacknowitall Supply House: http://www.supplyhouse.com
Cool Air Products: http://www.coolairproducts.net
Lambert Insurance Services: https://www.lambert-ins.com/
Follow the Guest John Bartlett on:
LinkedIn: www.linkedin.com/in/johnlbartlett/
John Bartlett’s Bio : https://www.brentwood-growth.com/our-team/john-bartlett/
Brentwood Growth: www.linkedin.com/company/brentwood-growth/
Phone: 908-377-7807
Email: jbartlett@brentwoodgrowth.com
Follow the Host:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
Facebook: www.facebook.com/HVAC-Know-It-All-2/
Instagram: www.instagram.com/hvacknowitall1/

Static Pressure vs Airflow: HVAC Monthly Tech Tip
Check out Jobber and all they have to offer.
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How Cold Climate Heat Pumps Cut Energy Costs for Businesses in Extreme Climates with David Rames | Part 2
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 callbacks and improve reliability.
Benefits of Midea’s modular air handlers for quick and easy installs.
How Midea combines affordability with advanced HVAC performance.
Episode Highlights:
[00:00] Introduction to Part 2 with guest David Rames from Midea America Corp
[01:18] Addressing misconceptions about demand response programs
[04:01] How heat pumps operate efficiently in extreme cold climates
[08:23] Alaska case study: Testing Midea heat pumps in harsh conditions
[11:31] Heating Imbalance in Old Buildings with Radiators and Boilers
[14:19] The Evolution of Heat Pump Technology: Mitsubishi vs. Other Manufacturers
[18:00] Installation Tips for Technicians to Minimize Callbacks
[19:33] Pressure from Management on Technicians and the Importance of Proper Installation
[22:06] Midea’s efforts to support the next generation of HVAC professionals
This Episode is Kindly Sponsored by:
Master: www.master.ca
Cintas: www.cintas.com/hvacknowitall
Supply House: www.supplyhouse.com
Cool Air Products: www.coolairproducts.net
Lambert Insurance Services: www.lambert-ins.com
Follow the Guest David Rames on: LinkedIn: www.linkedin.com/in/david-rames-06742814/
Midea America Corp: www.linkedin.com/company/midea-america-corp/
Follow the Host: LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
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It's Not Your Grandpas Heat Pump w/David Rames | Part 1
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 over traditional 24V setups for better control and performance.
Find out how Midea’s training programs help contractors deliver reliable and optimized installations.
Episode Highlights:
[00:33] Introduction to the episode and guest David Rames from Midea America Corp
[02:27] How heat pumps have evolved to deliver reliable performance in cold climates
[03:52] Debunking myths about heat pump complexity and durability
[06:59] The importance of proper installation and managing power fluctuations
[12:01] The problem with oversized HVAC systems and why sizing matters
[19:23] Comparing communicating systems vs. 24V setups and their differences
[23:43] Midea trains contractors on the benefits of communicating systems and over-the-air updates
This Episode is Kindly Sponsored by:
Master: www.master.ca
Cintas: www.cintas.com/hvacknowitall
Supply House: www.supplyhouse.com
Cool Air Products: www.coolairproducts.net
Lambert Insurance Services: www.lambert-ins.com
Follow the Guest David Rames on:
LinkedIn: www.linkedin.com/in/david-rames-06742814/
Midea America Corp: www.linkedin.com/company/midea-america-corp/
Follow the Host:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
Facebook: www.facebook.com/HVAC-Know-It-All-2/
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A2L Recovery and Evacuation Tools | Jesse Stewart
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 the right tools and following best practices for handling A2L refrigerants. Recovery Cylinder Basics: How to properly identify, label, and maintain recovery cylinders for safe use with A2L refrigerants. The Value of Good Information: Why it’s essential to rely on trustworthy sources and stay up-to-date through proper training.
Episode Highlights: [00:00] Welcoming Jesse Stewart and introduction to A2L refrigerants [01:42] Jesse’s background and expertise in HVAC tools and safety [01:59] Understanding A2L refrigerants and addressing misconceptions [05:37] Key features of A2L-compliant tools [12:37] Guidelines for marking and maintaining recovery cylinders [14:24] Adapters and hoses for A2L compatibility [17:25] Industry changes and the importance of training
This Episode is Kindly Sponsored by: Master: www.master.ca Cintas: www.cintas.com/hvacknowitall Supply House: www.supplyhouse.com Cool Air Products: www.coolairproducts.net Lambert Insurance Services: www.lambert-ins.com
Follow the Guest Jesse Stewart on: LinkedIn: www.linkedin.com/in/jesse-stewart%F0%9F%94%B8-180054205/ NAVAC HVAC: www.linkedin.com/company/navac-hvac/
Follow the Host: Instagram: www.instagram.com/hvacknowitall1/ LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/ Website: www.hvacknowitall.com Facebook: www.facebook.com/HVAC-Know-It-All-2/

How Vapor Injection Heat Pumps Deliver 25% More Capacity in Freezing Weather with Joshua Souders | Part 2
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 improves heating capacity and efficiency, especially in colder climates.
Advancements in Heat Pumps: Insights into how today’s heat pumps are designed to perform well, even in extreme cold weather.
Debunking Heat Pump Myths: Addressing the outdated belief that heat pumps can’t function effectively in freezing temperatures.
Practical HVAC Knowledge: Useful advice on understanding, maintaining, and selecting compressors for optimal performance.
Episode Highlights:
[00:32] Welcoming Joshua Souders and Recap of Part One
[02:22] What Variable-Speed Compressors are and How they Work
[04:24] Addressing Oil Delivery Challenges in Variable-Speed Compressors
[08:58] What is Vapor Injection and How It Improves Heat Pump Performance
[13:52] Using Vapor Injection to Keep Heat Pumps Running in Extreme Cold
[17:19] Clearing Up Misconceptions About Heat Pumps in Freezing Weather
[23:35] Heat Pump Costs, Incentives, and Breaking Down Barriers to Adoption
[27:31] Closing Thoughts: What’s Next for Heat Pumps and Compressor Technology
This Episode is Kindly Sponsored by:
Follow the Guest Joshua Souders on:
LinkedIn: https://www.linkedin.com/in/joshua-souders-902b448b/
Copeland: https://www.linkedin.com/company/copeland/
Follow the Host:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
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Instagram: www.instagram.com/hvacknowitall1/

Two Stage Compressors vs Variable Speed Compressors for Efficient HVAC Systems with Joshua Souders - Part 1
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 compressors keep heat pumps running smoothly, even in extreme cold.
Clearing Up Misconceptions: Address common myths about heat pump performance in freezing temperatures.
Innovative Solutions: Discover how vapor injection technology enhances heating efficiency in cold climates.
Expert Advice: Get practical tips on choosing and maintaining compressors for better performance and reliability.
Episode Highlights:
[00:33] – Podcast Introduction
[02:05] – Welcoming Joshua Souders and Setting the Stage for Compressor Talk
[03:34] – The Basics: How Single-Speed Compressors Work and Their Limitations
[07:54] – Exploring Two-Stage Compressors: Benefits, Functionality, and Comfort Improvements
[11:21] – Dehumidification and Energy Efficiency with Two-Stage Compressors
[18:56] – Digital Scroll Compressors: Applications and Differences Compared to Two-Stage Models
[21:49] – Variable-Speed Compressors: The Future of HVAC Systems and Global Adoption Trends
This Episode is Kindly Sponsored by:
Follow the Guest Joshua Souders on:
LinkedIn: https://www.linkedin.com/in/joshua-souders-902b448b/
Copeland: https://www.linkedin.com/company/copeland/
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/

Mini Split Installation Tips HVAC Professionals Need to Avoid Leaks with Rachel Samala
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 mini splits are a game-changer for California’s housing crisis, providing cost-effective and efficient HVAC solutions.
Mounting Mini Splits Securely: Learn Rachel’s innovative methods for mounting outdoor units, including wall brackets and threaded rod techniques inspired by Fujitsu’s guidelines.
The Importance of Quality Brands: Insights on choosing the right mini split brands for durability and performance, and why Rachel prefers AC Pro for its balance of quality and cost.
Flare Techniques and Tools: A deep dive into making leak-proof flares using spin bits, the Navac flare tool, and why Nylog is Rachel’s secret weapon for perfect seals.
Work-Life Balance as a Technician: Rachel shares her personal experiences juggling family life and a thriving HVAC career, including the challenges of bringing her kids to job sites.
Episode Highlights:
[00:33] - Guest Introduction
[02:14] - Welcoming Rachel Samala, AKA Miss Mini Split, and her HVAC journey
[05:02] - Mini Splits in Affordable Housing: How they address California’s housing crisis
[06:29] - Choosing the Right Brand: Rachel’s insights on balancing cost and quality
[12:01] - Mounting Techniques: Wall brackets, threaded rod methods, and roof solutions
[20:42] - Flaring and Sealing: Tools, techniques, and tips for leak-proof connections
[25:33] - Using Nylog: Application on flares and addressing system concerns
[31:05] - Evacuation Best Practices: Vacuum setups and ensuring system performance
[35:14] - Final Tips: Rachel’s advice for new and experienced HVAC technicians
This Episode is Kindly Sponsored by:
Follow the Guest Rachel Samala on:
Instagram - Miss Mini Split: www.instagram.com/missminisplit/
California Mechanical, Heating & Air Conditioning: www.calimech.com/
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/

What's To Come In 2025 For HVAC Professionals
Check out our latest article on AI and how if will effect the HVAC industry.
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
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NFPA Compliance Tips for HVAC Contractors to Unlock New Revenue Streams with Brent Lammert - Part 2
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 technicians. If you’re looking to expand your toolkit and provide next-level service, thermal imaging might just be the “best-kept secret” you need to unlock.
Expect to Learn:
Thermal Imaging in Action: How HVAC professionals can use thermal cameras to identify refrigerant restrictions, ductwork inefficiencies, and equipment faults quickly and accurately.
Diagnosing Building Envelope Issues: Using thermal imaging during blower door tests to pinpoint air leaks and improve energy efficiency in homes and buildings.
Hydronic and Steam Systems: Practical applications of thermal cameras for troubleshooting issues in hydronic heating systems and steam humidification setups.
Refrigerant Leak Insights: Understanding how thermal cameras can identify refrigerant leaks by detecting temperature anomalies in unexpected areas.
Business Benefits of Thermal Tools: How thermal imaging can enhance service quality, save time, and open up new revenue opportunities for HVAC contractors.
Episode Highlights:
[00:33] – Podcast Introduction & Recap of Part 1
[02:24] – Thermal Imaging for HVAC Technicians: Identifying Building vs. System Issues
[05:27] – Using Thermal Cameras to Troubleshoot Refrigeration Systems and Filter Dryers
[06:56] – Hydronic Systems: Pinpointing Zone Control Issues with Thermal Imaging
[10:07] – Can Thermal Cameras Detect Refrigerant Leaks? Brent Explains the Process
[18:29] – Thermal Imaging and Blower Door Tests: A Powerful Combination
[20:26] – Testo’s Vision: Affordable Thermal Imaging Tools for Field Technicians
[22:25] – Future Educational Campaign: Tips and Tricks for Using Thermal Cameras
[24:40] – Conclusion: Key Takeaways on the Value of Thermal Imaging and Its Impact on HVAC Workflows
This Episode is Kindly Sponsored by:
Follow the Guest Brent Lammert on:
LinkedIn: www.linkedin.com/in/brentlammert/
Testo Instruments - North America: www.linkedin.com/company/testo-usa/
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/

Thermal Imaging Tools for HVAC Technicians to Solve Issues Fast with Brent Lammert - Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie sits down with Brent Lammert, who leads the Thermal Imaging Business Unit at Testo Instruments - North America, for part one of their engaging conversation on the game-changing applications of thermal imaging in HVAC, plumbing, and electrical trades. Brent, now with Testo, shares insights into leveraging thermal cameras for identifying issues like air leaks, ductwork problems, and electrical faults with unmatched speed and accuracy.
Gary and Brent explore the core principles of thermal imaging, from detecting building envelope inefficiencies to using thermal imaging for compliance with new NFPA 70B standards. Brent also sheds light on the business potential of offering thermography as a service, backed by practical tips and real-world examples of improving safety, reliability, and customer satisfaction.
Packed with actionable advice and thought-provoking discussions, this episode is a must-listen for HVAC professionals looking to stay ahead of the curve by integrating innovative tools into their workflows.
Expect to Learn:
The Basics of Thermal Imaging: Core principles and killer applications of thermal cameras for HVAC, plumbing, and electrical trades.
Building Envelope Insights: How to identify air leaks, missing insulation, and other building inefficiencies to improve comfort and energy efficiency.
NFPA 70B Compliance: Leveraging thermal imaging for electrical inspections to meet industry standards and reduce liability risks.
Business Opportunities in Thermography: Strategies for contractors to add value and generate recurring revenue through thermal imaging services.
Real-World Applications: Practical examples of detecting water leaks, troubleshooting HVAC issues, and resolving customer comfort problems with thermal imaging.
Episode Highlights:
[00:33] – Podcast Introduction
[02:50] – Welcoming Brent Lammert and the Importance of Thermal Imaging
[03:45] – Applications of Thermal Cameras in HVAC, Plumbing, and Electrical Trades
[06:56] – NFPA 70B Compliance: A New Standard for Electrical Inspections
[10:08] – Business Opportunities: Leveraging Thermal Imaging for Recurring Revenue
[11:41] – Identifying Building Envelope Issues: Air Leaks and Missing Insulation
[16:03] – Practical Tips for Using Thermal Cameras Effectively
[17:48] – Understanding Emissivity: What it is and how it impacts thermal imaging accuracy.
[23:41] – Detecting Water Leaks Behind Walls with Thermal Imaging
This Episode is Kindly Sponsored by:
Follow the Guest Brent Lammert on:
LinkedIn: www.linkedin.com/in/brentlammert/
Testo Instruments - North America: www.linkedin.com/company/testo-usa/
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/

Refrigeration Leak Prevention for HVAC Pros to Master Safe Nitrogen Handling with Julian Finbow - Part 2
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Julian Finbow, HVAC/R Educator, Mentor, Content Writer, and Founder of Finbow Inc., for part two of their in-depth conversation on pressure testing in HVAC and refrigeration systems.
This episode dives into key topics, including troubleshooting leaking Schrader valves, best practices for flaring techniques, and the role of both pressure testing and evacuation in ensuring system integrity. Julian shares his technical expertise and hands-on experience, offering insights into precision, safety, and efficiency.
With actionable tips and real-world examples, this discussion is a must-listen for HVAC professionals looking to refine their diagnostic and installation skills.
Expect to Learn:
Managing Leaking Schrader Valves: Effective methods for troubleshooting and addressing leaks in Schrader valves, a common challenge in HVAC systems.
Flaring Techniques: Best practices for achieving proper, leak-free flares, including the debate over reaming and the role of tools like torque wrenches.
Pressure Testing vs. Evacuation: Why both processes are critical and how to execute them for maximum accuracy and safety.
Using Sealants like Nylog: How Nylog can be applied to flares and Schrader caps to enhance sealing and prevent leaks.
Real-World Insights: Practical tips and experiences from Julian and Gary’s years in the field, including solutions for common system issues.
Episode Highlights:
[00:33] - Podcast Introduction & Recap of Part 1
[02:21] - Different Approaches to Pressure Testing: Timing and Customer Expectationss
[04:56] - Flapper Valves and Common Challenges in Pressure Testing & Evacuation Testing
[08:49] - Flaring Techniques: Debates on Reaming and Best Practices
[14:37] - Nylog for Sealing Flares: Practical Applications
[17:53] - Schrader Valves: Challenges, Misconceptions, and Best Practices
[23:42] - Final Tips for Successful Pressure Testing and Episode Wrap-Up
This Episode is Kindly Sponsored by:
Follow the Guest Julian Finbow on:
LinkedIn: https://www.linkedin.com/in/julian-finbow-rse-1048038b/
Finbow Inc.: https://www.linkedin.com/company/finbow-inc/
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/

Refrigeration Maintenance Skills for HVAC Pros to Avoid Costly Leaks with Julian Finbow - Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Julian Finbow, HVAC/R Educator, Mentor, Content Writer, and Founder of Finbow Inc., for part one of their discussion on pressure testing in HVAC and refrigeration systems. Julian shares his expertise on managing live systems, addressing leaking valves, and following best practices to ensure safety and efficiency.
Through practical tips and real-world anecdotes, Gary and Julian highlight the importance of precision, proper equipment, and diligent inspections. They discuss key challenges, such as managing live systems and addressing leaks, while emphasizing safety at every step. Julian’s technical knowledge and hands-on experience make this episode a valuable resource for HVAC professionals aiming to enhance their skills, adapt to industry standards, and execute flawless installations.
Expect to Learn:
Managing Live Systems: Key techniques for handling live systems and addressing challenges like leaking valves.
Safety with High-Pressure Equipment: Essential safety measures for working with nitrogen tanks and pressure regulators.
Best Practices for Pressure Testing: A step-by-step approach to ensuring system integrity during installations and maintenance.
Inspection Tools and Tips: The importance of thorough inspections and the tools that make the process efficient.
Real-World HVAC Scenarios: Practical examples and lessons learned from Julian’s and Gary’s field experiences.
Episode Highlights:
[00:33] - Podcast Introduction
[02:32] - Welcoming Julian Finbow and an Overview of Pressure Testing
[04:39] - Safety Measures: Handling Nitrogen Tanks and Regulators
[08:58] - Real-World Challenges: Live Systems and Leaking Valves
[17:51] - Pressure Testing Tips for Residential and Smaller Systems
[25:09] - Tools and Techniques for Accurate Inspections
[27:40] - Common Mistakes and Lessons Learned from the Field
This Episode is Kindly Sponsored by:
Follow the Guest Julian Finbow on:
LinkedIn: https://www.linkedin.com/in/julian-finbow-rse-1048038b/
Finbow Inc.: https://www.linkedin.com/company/finbow-inc/
Follow the Host on:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
Facebook: www.facebook.com/hvacknowitall/
Instagram: www.instagram.com/hvacknowitall1/

Flammable A2L Refrigerants Explained for Technicians in HVAC with Kevin Gill - Part 2
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Kevin Gill, Director of Technical Projects & Business Development – Refrigeration of The Master Group, for part two of their discussion on the H2O refrigerant transition in North America. Building on the first part of this series, Kevin takes a deeper dive into the practical challenges and innovative solutions that HVAC professionals will face as they shift towards the new refrigerants. The conversation explores topics such as the flammability concerns of the new refrigerants, the role of sensors in system monitoring, and the specialized tools required for this transition.
Kevin Gill brings his extensive experience in refrigeration and HVAC systems to this episode, providing valuable insights into the technical and safety considerations surrounding the H2O refrigerant shift. His expertise helps contractors understand the nuances of implementing new technologies, ensuring safety, and future-proofing their work for evolving regulations and standards.
Expect to Learn:
Flammability of New Refrigerants: Understanding the real flammability risks and necessary safety measures.
Role of Sensors in HVAC: How sensors will enhance system monitoring and safety.
Specialized Tools: The new tools required for working with modern refrigerants and their benefits.
Adapting to Changes: Tips for HVAC pros to adjust to evolving refrigerant standards and practices.
Practical Insights: How contractors can stay ahead with new tech, tools, and regulations.
Episode Breakdown:
[00:32] - Podcast Introduction
[04:02] - Flammability of New Refrigerants
[07:48] - Taking the Lead in Refrigeration
[17:43] - Understanding ASHRAE Refrigerant Flammability Differences
[22:19] - Navigating Future Equipment Changes
[26:04] - Tracking the Adoption of CSA B52 Standards
[28:42] - Safety Concerns with New Systems
[37:01] - Final Thoughts and Closing Remarks
This episode is kindly sponsored by:
Connect with The Master Group:
The Master Group LinkedIn: www.linkedin.com/company/themastergroup/
The Master Group Website: www.master.ca
Follow the Host:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
Facebook: www.facebook.com/hvacknowitall/
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Blind Residential HVAC Sales: Monthly HVAC Tech Tip

Low-GWP Refrigerants for HVAC Pros to Stay Ahead of Global Regulations with Kevin Gill - Part 1

HVAC Advanced Combustion Analysis: Secrets Every Tech Must Learn with Jason Esteves
In this episode of the HVAC Know It All Podcast, host Gary McCreadie dives into advanced combustion analysis with Jason Esteves from Seitron Americas Inc. The episode builds on previous discussions of basic and intermediate combustion principles, diving into the stoichiometric curve—a key concept for mastering combustion efficiency and safety.
Jason Esteves is a seasoned expert in combustion technology and training, representing Seitron Americas Inc. With over 20 years of experience in the field, Jason combines technical expertise with a passion for educating HVAC professionals, making complex combustion concepts accessible and practical for technicians in the field.
Expect to learn:
Theoretical Combustion: Stoichiometric combustion is a guiding principle but impossible to achieve in practice.
Efficiency with the Curve: Use the stoichiometric curve to balance efficiency and minimize CO emissions.
Analyzer Tools: Advanced features like "Pro Mode" simplify diagnostics for technicians.
NOx Emissions: Modern systems reduce harmful NOx emissions caused by high-temperature combustion.
Avoiding Errors: Proper venting and following manufacturer specs ensure safety and efficiency.
Episode Highlights:
[00:33] - Guest Introduction
[01:41] - Podcast Introduction
[02:10] - Understanding Stoichiometric Combustion
[07:10] - Navigating the Stoichiometric Curve
[15:09] - Using Combustion Analyzers Effectively
[22:26] - Understanding NOx Emissions
[24:44] - The Importance of Proper Venting
[27:04] - Closing Thoughts and Open Invitation for Further Learning
Follow the Guest Jason Esteves on:
LinkedIn: www.linkedin.com/in/jason-esteves-9690255/
Seitron Americas LinkedIn: www.linkedin.com/company/seitron-americas-inc/
For a copy of Jason’s training presentation on combustion or any combustion-related queries, contact him directly at: jesteves@seitronamericas.com
Follow the Host on:
LinkedIn: www.linkedin.com/in/gary-mccreadie-38217a77/
Website: www.hvacknowitall.com
Facebook: www.facebook.com/hvacknowitall/
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Carrier Rooftop Service Call
Gary McCreadie takes us on a commercial HVAC service call troubleshooting a Carrier rooftop unit.
The problem was not 100% apparent, it took a little leg work and a couple of visits to solve.
https://www.master.ca/professional/ www.cintas.com/HVACKnowItAll Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowithttps://www.instagram.com/hvacknowitall1/all.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/

Hot Surface Ignition vs. Direct Spark: Monthly HVAC Tech Tip
Hot surface ignitors or HSI for short vs. Direct Spark. These are two different methods that natural gas or propane appliances use to ignite the flame for heating purposes.
Check out Jobber www.getjobber.com/hvacknowitall

Residential HVAC Service Call w/Francisco Pastor
No Gauges No Problem with Jim Bergmann as promised.
www.master.ca/professional/
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Save 8% on your purchase www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It
All app app.hvacknowitall.com
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Adapting To Changes In HVAC w/Zach Karre
The changes are coming quick and fast in the HVAC and Refrigeration Industry. Keeping up and adapting will ensure we don't become complacent in our day to day.
We speak to HVAC business owner Zach Karre about how adapting quickly might be our best option.
https://www.master.ca/professional/ www.cintas.com/HVACKnowItAll Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowithttps://www.instagram.com/hvacknowitall1/all.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/

HVAC Gone All Connected w/Ben Reed
Check out Ben's Technicians Guide To Wireless Communication.
hvacknowitall.com/blog/an-hvac-technicians-guide-to-wireless-communications
Reach out to Ben to contribute to HVAC Know It All.
www.master.ca/professional/
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UV Lights For Grow IAQ
www.diversitech.com/
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Refrigerant Loss While Gauging Up: Monthly HVAC Tech Tip
Gauging up to systems is not always necessary but if you do, it's best not to lose refrigerant in the process if at all possible. Using low loss fittings, ball valves, gas retention valves or other can help with this.
Check out Jobber www.getjobber.com/hvacknowitall

Intermediate Combustion Analysis w/Jason Esteves
In part 2 of 3 we speak to Jason Esteves from Seitron Americas. We discuss intermediate combustion analysis. Jason tell us how to get proper combustion efficiency in a 2 pipe system. We also briefly discuss how to find cracked heat exchangers using a combustion analyzer.
https://seitron.com/en_us/novo-combustion-analyzer.html
https://www.master.ca/professional/ www.cintas.com/HVACKnowItAll Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowithttps://www.instagram.com/hvacknowitall1/all.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/

Low Ambient Air Conditioning and Refrigeration w/Keith Clark and John Fanetti
We speak to Keith Clark and John Fanetti from ICM controls about low ambient air conditioning and refrigeration operation. We compare fan cycling vs fan speed. We discuss the ICM 325A which can control fan speed based on temperature or pressure.
https://www.icmcontrols.com/product/icm325a/
https://www.master.ca/professional/ www.cintas.com/HVACKnowItAll Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowithttps://www.instagram.com/hvacknowitall1/all.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/

Marketing Your Skilled Trades Business in 2024
Listen to industry professionals, Greg Crumpton, Terence Chan and Ryan Hache discuss this with me (Gary McCreadie) in this live conversation at CMPX.
Book a free strategy session to review your results.
hachemarketing.com/strategy-session
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Combustion Analysis On Every Service Call: Monthly HVAC Tech Tip
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Check out the full Navien walk through youtu.be/E6UmOK9nrlE

Basic Combustion Analysis w/Jason Esteves
In part 1 of our 3 part series, we speak to Jason Esteves from Seitron Americas about basic combustion analysis. We will record an intermediate and advanced session in the coming weeks. Seitron has launched a new combustion analyzer, check out it out.
https://seitron.com/en_us/novo-combustion-analyzer.html
https://www.master.ca/professional/ www.cintas.com/HVACKnowItAll Save 8% on your purchase https://www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It All app app.hvacknowitall.com https://www.hvacknowithttps://www.instagram.com/hvacknowitall1/all.com/pages/about Visit HVAC Know It All on social media Facebook https://www.facebook.com/hvacknowitall/ Instagram https://www.instagram.com/hvacknowitall1/

Stainless Steel TXVs and How They Operate
We speak with Ejner Kobbero from Danfoss about the stainless steel thermostatic expansion valve, known as the TU series from Danfoss.
https://www.danfoss.com/en/products/dcs/valves/thermostatic-expansion-valves/thermostatic-expansion-valves/tu-thermostatic-expansion-valves/
We cover how to install the valve, how to adjust it and we also talk about bulb placement.
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How Is UV Dye Developed For HVAC Leak Detection w/John Godden and Matthew Cowley
spectroline.com/hvac-fluorescent-leak-detection-dyes/
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Adding Additional Control Wires w/Ken Wiklund and Ashton Shura
fast-stat.com/
www.master.ca/professional/
www.cintas.com/HVACKnowItAll
Save 8% on your purchase www.trutechtools.com/ with promo code knowitall Check out the HVAC Know It
All app app.hvacknowitall.com
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