HVAC Know It All Podcast

Gary McCreadie - Licensed Refrigeration/HVAC Technician
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The HVAC Know It All Podcast, hosted by HVAC and Refrigeration tech Gary McCreadie, is an industry leading show that focuses on education within the HVAC and Refrigeration Trade - Such as HVAC Maintenance Tips.

  1. HVAC Techs Are Destroying Compressors with Moisture and Charging Mistakes - Matthew Waxer Part 2

    HACE 1 DÍA

    HVAC Techs Are Destroying Compressors with Moisture and Charging Mistakes - Matthew Waxer Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Matthew Waxer, HVAC/R Mechanic at Kilmer HVACR Services Inc, about proper system setup and the impact of moisture and refrigerant charge on system performance. In Part 2, they discuss evacuation practices, moisture control, and how acid can form inside a system and damage components. Matthew explains the risks of undercharging and overcharging, including overheating, high-pressure issues, and liquid returning to the compressor. They also cover concepts like superheat, subcooling, and compressor envelopes, along with common failure causes such as flood back and flooded starts. The conversation wraps up with practical insights on avoiding costly breakdowns through proper installation and maintenance. Gary and Matthew discuss how moisture and refrigerant charge affect system performance and compressor life. They explain how poor evacuation leaves moisture in the system, which can lead to acid formation and damage over time. Matthew describes the risks of undercharging and overcharging, including overheating, high-pressure issues, and liquid returning to the compressor. They also cover key checks like superheat, subcooling, and staying within the compressor operating range. They finish by explaining common failure causes like flood back and flooded starts, and how proper setup and maintenance can prevent costly system damage. Expect to Learn: How moisture left in a system can lead to acid and damage over time. How proper evacuation helps reduce moisture and protect system components. Why is the correct refrigerant charge important for compressor cooling and performance? How superheat and subcooling are used to check system operation. How issues like floods and flooded starts can cause major compressor failure.   Episode Highlights:  [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to Matthew Waxer in Part 02  [02:04] - Matthew: Moisture removal and decay test explained [04:27] - Gary & Matthew: Acid formation from moisture damages compressors [07:10] - Undercharged systems: Elevated superheat cooks compressors [10:31] - Overcharge and poor airflow cause high pressure and slugging [15:22] - Zero superheat = liquid flood back to compressor [17:40] - Flooded start: Liquid refrigerant in sump destroys compressor [21:18] - Liquid migration from risers and cold ambient starts   This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!   Follow the Guest Matthew Waxer on:  LinkedIn: https://www.linkedin.com/in/matthew-waxer-b4a62360/   Kilmer HVACR Service Inc - Website: https://kilmerservice.com/     Follow the Host on: 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/  Follow the Podcast on:  YouTube: https://www.youtube.com/@HVACKnowItAll   Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce  Apple Podcast: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    22 min
  2. How HVAC Owners Can Fix Broken Ops and Build Smarter Teams with AI - Andrew Blair

    HACE 2 DÍAS

    How HVAC Owners Can Fix Broken Ops and Build Smarter Teams with AI - Andrew Blair

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Andrew Blair, Director of Product and Market Development at Helix Earth and Advisor / Angel Investor at various startups, the conversation dives into the journey of scaling an HVAC and commercial refrigeration business from early scrappy operations to a multi-million dollar company.    Andrew Blair is an experienced HVAC and commercial refrigeration professional who transitioned from hands-on fieldwork into business leadership. He played a key role in growing Kensington into a ~$6M operation, optimizing systems, and building team culture. Andrew is now the Director of Product and Market Development at Helix Earth Technologies, where he focuses on innovative HVAC solutions, bringing both field and business expertise into product development. Expect to Learn How to transition from technician to business leader (and the mistakes to expect) The real challenges of implementing service software like Jobber and ServiceTitan Why company culture and individualized management matter at scale Practical ways AI is already improving HVAC operations and technician performance What the future of AI and innovation looks like in the trades industry   Episode Breakdown with Timestamps [00:00:00] - Introduction  [00:01:36] - Early Business Challenges [00:03:11] - Scaling Operations & Growing Pains [00:05:18] - Leadership & Managing People [00:09:35] - Getting the Most Out of Software Tools [00:14:52] - The Future of AI in the Trades [00:16:00] - New Chapter: Helix Earth Technologies [00:18:04] - Closing Thoughts & Takeaways   This Episode is Kindly Sponsored by: PartsTown: https://www.partstown.com/hvac-parts   Follow our Guest Andrew Blair: LinkedIn: https://www.linkedin.com/in/andrew-blair-/ Company Website: https://www.helixearth.com/ Company LinkedIn: - Helix Earth: https://www.linkedin.com/company/helixearth/   Follow Gary McCreadie: 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/  Follow Furman Haynes:  LinkedIn: https://www.linkedin.com/in/furmanhaynes/  WorkHero: https://www.linkedin.com/company/workherohvac/  Instagram: https://www.instagram.com/workhero__/

    19 min
  3. What Causes HVAC Compressor Failure? Installation Oil Problems and Sizing Errors - Matthew Waxer Part 1

    HACE 3 DÍAS

    What Causes HVAC Compressor Failure? Installation Oil Problems and Sizing Errors - Matthew Waxer Part 1

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Matthew Waxer, HVAC/R Mechanic at Kilmer HVACR Services Inc, to discuss how to prevent compressor failure through proper installation, service, and maintenance practices. Matthew explains how many compressor failures are caused by system issues like poor brazing, incorrect sizing, and a lack of proper oil return. The conversation covers key factors such as nitrogen purging, moisture control, and the impact of short cycling or overheating on compressor life. Gary and Matthew also explore what can be learned from compressor tear-downs and how small mistakes over time can lead to major failures. In this conversation, Matthew explains how proper installation and maintenance practices help prevent compressor failure in HVAC systems. He describes how issues like poor nitrogen purging, moisture contamination, and incorrect system sizing can damage compressors over time. Matthew and Gary discuss how oil return, airflow, and system load affect compressor performance and lifespan. They also cover what technicians can learn from compressor tear-downs, including signs of overheating and lack of lubrication, and explain how careful setup and servicing can improve reliability and system efficiency. Expect to Learn: How proper installation practices help prevent compressor failure in HVAC systems. Why nitrogen purging and moisture control are critical to system reliability. How incorrect sizing can lead to short cycling or overheating issues. What causes poor oil return, and how does it affect compressor lubrication and lifespan? How teardowns reveal common failure points and help improve service practices. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Matthew Waxer in Part 1 [02:04] - Main topic: Avoiding compressor failure  [04:06] - "Compressors don't fail, they're murdered."  [05:36] - Start with proper installation  [07:06] - Proper system sizing: avoid short cycling  [09:18] - Read manuals & check oil return requirements  [10:38] - Oil return issues from clogged components  [16:41] - POE oil moisture risks & proper vacuuming  [21:55] - POE oil additives & system open time myth This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse! Follow the Guest Matthew Waxer on: LinkedIn: https://www.linkedin.com/in/matthew-waxer-b4a62360/ Kilmer HVACR Service Inc - Website: https://kilmerservice.com/ Follow the Host on: 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/  Follow the Podcast on: YouTube: https://www.youtube.com/@HVACKnowItAll Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce Apple Podcast: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    25 min
  4. HVAC Mental Health: From Attention Seeking Trauma to Discipline with Adam Gordon Part 2

    9 ABR

    HVAC Mental Health: From Attention Seeking Trauma to Discipline with Adam Gordon Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Adam Gordon, Director of Service and Maintenance, Mechanical Division at Orella Group Inc, in the Mental Health series. Adam speaks openly about how past trauma shaped his need for attention and validation, and how that showed up in his life and on social media. He talks about learning to manage those habits by focusing on fitness, discipline, family time, and building positive routines. Adam also shares the value of surrounding yourself with good people, finding mentors, and using social media in a healthier way. The episode highlights the importance of self-awareness, personal growth, and reaching out for help or guidance when dealing with mental health challenges. Gary and Adam discuss mental health in the trades and the personal challenges that can shape a person's life and behaviour. Adam speaks openly about growing up between two households and how a lack of attention led to a strong need for validation as an adult. They talk about how that showed up through social media, relationships, and conflict online. Adam also explains how he now focuses on healthier habits like fitness, structured routines, family time, and surrounding himself with positive people. The conversation highlights the value of self-awareness, mentorship, and reaching out to others when dealing with personal struggles or mental health challenges. Expect to Learn: How past experiences can shape behaviour and the need for validation. Why calm responses can help reduce conflict on social media and in daily life. How routines like fitness, early mornings, and structured days support mental health. Why does surrounding yourself with positive people and mentors matter? How reaching out and having honest conversations can help during tough times.   Episode Highlights: [00:00] - Intro to Adam Gordon in Part 02  [02:01] - Late-night self-reflection  [04:19] - The dark side of social media  [05:45] - Escaping through attention seeking  [07:54] - Fitness, routine & healthy validation  [11:08] - Why your circle matters  [14:36] - Loyalty vs. drama  [17:16] - Current mindset & advice for others  [19:31] - Advice for those struggling: reach out   This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!   Follow the Guest Adam Gordon on: LinkedIn: https://www.linkedin.com/in/adam-gordon-494a54bb/ Instagram: https://www.instagram.com/gordonbotplumbing/ Orella Group Inc: https://www.linkedin.com/company/orella-group-inc/   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/

    22 min
  5. HVAC Business Owners Fail Without Field Experience to Build Real Growth with Andrew Blair

    8 ABR

    HVAC Business Owners Fail Without Field Experience to Build Real Growth with Andrew Blair

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Andrew Blair, Director of Product and Market Development at Helix Earth and Advisor / Angel Investor at various startups, to explore the journey from growing up in a family-owned HVAC business to becoming a key operator in a commercial refrigeration company. The conversation dives into the realities of the skilled trades, the growing talent shortage, and the operational challenges of running a service-based business, especially in mission-critical environments like refrigeration.  The episode also highlights the evolving nature of trade education, licensing complexities, and what it truly takes to build and scale a successful HVAC business. Andrew Blair is an experienced HVAC and commercial refrigeration professional who grew up in the industry through his family's business, Kensington Mechanical.    Expect to Learn Why HVAC is one of the most underrated but complex skilled trades How trade schools and partnerships can solve the labor shortage The importance of field experience when running a service business Differences between residential HVAC and commercial refrigeration work How to handle high-pressure, mission-critical service environments   Episode Breakdown with Timestamps  [00:00:00] – Introduction  [00:01:57] – Growing Up in a Family HVAC Business [00:03:45] – Why HVAC Stands Out Among the Trades [00:04:27] – Skilled Labor Shortage & Trade School Partnerships [00:06:33] – Licensing Challenges & Industry Evolution [00:09:19] – From Apprentice to COO: Scaling a Family Business [00:14:26] – Understanding Commercial Refrigeration & Critical Environments [00:18:38] – Advice for Entering Commercial Refrigeration   This Episode is Kindly Sponsored by: PartsTown: https://www.partstown.com/hvac-parts   Follow our Guest Andrew Blair: LinkedIn: https://www.linkedin.com/in/andrew-blair-/ Company Website: https://www.helixearth.com/ Company LinkedIn - Helix Earth: https://www.linkedin.com/company/helixearth/     Follow Gary McCreadie: 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/    Follow Furman Haynes:  LinkedIn: https://www.linkedin.com/in/furmanhaynes/  WorkHero: https://www.linkedin.com/company/workherohvac/  Instagram: https://www.instagram.com/workhero__/

    22 min
  6. HVAC Mental Health: The Reality of Grief in the Trades with Adam Gordon Part 1

    6 ABR

    HVAC Mental Health: The Reality of Grief in the Trades with Adam Gordon Part 1

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues the mental health series with guest Adam Gordon, Director of Service and Maintenance, Mechanical Division at Orella Group Inc. In Part 1, Adam shares his life story and speaks openly about the trauma he has faced, including witnessing a close friend die in a tragic accident, losing family members, and making the difficult decision to remove life support from his father. He explains how years of grief, family struggles, and seeking attention shaped many of his actions in the past, both online and in his personal life. Adam also talks about how therapy helped him better understand himself and begin working through his trauma. Together, they discuss the importance of purpose in the trades, learning from difficult experiences, and creating space for honest conversations about mental health. This episode continues the mental health series by focusing on the struggles many people in the trades quietly carry. Adam joins Gary to share the difficult experiences that shaped his life, including witnessing his best friend die in a tragic accident, losing his stepfather to suicide, and later losing his sister and father. He explains how years of grief and family challenges affected his behaviour, relationships, and search for attention both online and in real life. Adam also talks about how therapy helped him better understand his trauma and begin working on personal growth. The conversation highlights the importance of opening up, learning from hard experiences, and creating space for honest discussions about mental health in the trades. Expect to Learn: How witnessing a close friend die at a young age affected Adam's life. How losing his stepfather, sister, and later his father shaped his grief. Why do many tradespeople feel pressure to stay quiet and keep working? How therapy helped Adam understand his behaviour and past trauma. How helping customers through service work can create purpose and meaning. Episode Highlights: [00:00] - Intro to Adam Gordon in Part 1  [03:02] - Meet Adam: Early Life Trauma & Loss [05:44] - Coping Mechanisms: Dark Humor & Moving On [09:16] - Adam's Past: From Revenge Porn to Therapy [12:02] - Social Media Struggles: Trolls vs. Gratitude [15:44] - Gary's Approach: Blocking Out Negativity [18:23] - Maturity: Not Feeding the Online Drama   This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/hvacknowitall Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm  Use promo code HKIA5 to get 5% off your first order at SupplyHouse! Follow the Guest Adam Gordon on: LinkedIn: https://www.linkedin.com/in/adam-gordon-494a54bb/ Instagram: https://www.instagram.com/gordonbotplumbing/ Orella Group Inc: https://www.linkedin.com/company/orella-group-inc/ 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/

    20 min
  7. HVAC Invoicing Fixes for Service Techs to Reduce Cash Flow Gaps with Austin Wendel Part 2

    2 ABR

    HVAC Invoicing Fixes for Service Techs to Reduce Cash Flow Gaps with Austin Wendel Part 2

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Austin Wendel, Owner at Accounting 4 Trades. Austin shares valuable insights on managing cash flow, invoicing efficiently, and using smart marketing strategies to grow a successful trade business. From service agreements to financial systems, this episode covers key strategies that every small business owner should consider for long-term success. With extensive experience in the HVAC and trades industry, Austin shares his expertise on cash flow management, financial systems, and operational efficiency, all crucial to growing a sustainable business.   Expect to Learn: The importance of quick invoicing for maintaining healthy cash flow How to handle unpaid invoices and effectively collect payments Marketing strategies for acquiring your first customers Setting up financial systems that work for your trade business The benefits of service agreements and creating long-term customer relationships Timestamps: 00:00 - Introduction 02:37 - Importance of Quick Invoices 05:31 - Marketing for New Businesses. 07:48 - Grassroots Marketing Techniques 08:39 - Setting Up Financial Systems 10:31 - Service Agreements for Steady Cash Flow 13:33 - HVAC as a Service Model 17:22 - Advice for New Business Owners 18:14 - Conclusion   This Episode is Kindly Sponsored by: PartsTown: https://www.partstown.com/hvac-parts   Follow our Guest Austin Wendel: LinkedIn: https://www.linkedin.com/in/accounting4trades/ Instagram: https://www.instagram.com/accounting4trades/ Company Website: https://www.acc4t.com/ Company LinkedIn: https://www.linkedin.com/company/accounting-4-trades/ Company Facebook: https://www.facebook.com/acc4trades/ Follow Gary McCreadie: 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/ Follow Furman Haynes:  LinkedIn: https://www.linkedin.com/in/furmanhaynes/ WorkHero: https://www.linkedin.com/company/workherohvac/ Instagram: https://www.instagram.com/hvacknowitall1/

    18 min
  8. HVAC Techs Can Zone Any Brand Without Bypass or Complexity with Christopher Rystedt Part 2

    30 MAR

    HVAC Techs Can Zone Any Brand Without Bypass or Complexity with Christopher Rystedt Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Christopher Rystedt, Technical Sales and Trainer at Airzone Control, about air distribution and zoning with VRF and inverter systems. In Part 2, they discuss common applications such as hotels and residential homes, and how zoning can work with multiple brands and system types. Christopher explains how modern zoning avoids bypass dampers by adjusting fan speed and system capacity based on demand. They also cover ventilation modes, zone weighting, and how airflow is balanced across different spaces. The conversation wraps up with setup tips, training options, and how zoning can help manage refrigerant limits and reduce system size and cost. Gary and Christopher discuss how modern HVAC zoning systems work with VRF and inverter equipment in both commercial and residential applications. They explain how systems can control multiple zones or units from one platform, even across different brands. Christopher describes how proper duct design and variable fan speed help avoid the need for bypass dampers while maintaining correct airflow. They also cover ventilation settings, including local and system-wide fan operation, and how zone weighting helps balance airflow based on duct size. They finish by talking about system setup, training resources, and how zoning can help reduce refrigerant use and overall system costs.   Expect to Learn: How HVAC zoning systems can control multiple rooms using VRF and inverter equipment. How one platform can manage different brands and types of HVAC units together. Why proper duct design and variable fan speed help eliminate the need for bypass dampers. How ventilation modes work at both the zone level and system level to move air. How zone weighting and system setup help balance airflow and improve overall performance.   Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [01:08] - Intro to Chris Rystedt in Part 02  [02:10] - Main applications: Hotels, villas, and residential  [04:34] - Airzone history: Spain (1997), North America (2021)  [06:57] - Inverter systems vs. traditional bypass dampers  [09:21] - Ventilation modes: Local and global settings  [13:29] - Christopher's role: Technical sales and trainer  [18:33] - Training resources and A2L refrigerant benefits    This Episode is Kindly Sponsored by: Cintas: https://www.cintas.com/ Cool Air Products: https://www.coolairproducts.net/ Factory Direct Filters: https://www.factorydirectfilters.com/ SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!   Follow the Guest Christopher Rystedt:  LinkedIn: https://www.linkedin.com/in/christopher-rystedt-62258597/   Airzone Control - LinkedIn: https://www.linkedin.com/company/airzonecontrol/   Airzone Control - Website: https://www.airzonecontrol.com/as/en/  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/  Follow the Podcast:  YouTube: https://www.youtube.com/@HVACKnowItAll   Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce  Apple Podcast: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    22 min
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The HVAC Know It All Podcast, hosted by HVAC and Refrigeration tech Gary McCreadie, is an industry leading show that focuses on education within the HVAC and Refrigeration Trade - Such as HVAC Maintenance Tips.

Información

  • Creador
    Gary McCreadie - Licensed Refrigeration/HVAC Technician
  • Años de actividad
    2018 - 2026
  • Episodios
    546
  • Clasificación
    Apto
  • Copyright
    © 2025
  • Mostrar sitio web
    HVAC Know It All Podcast

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