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HVAC Know It All Podcast

HVAC Know It All Podcast

Von: 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.2025 Erfolg im Beruf Ökonomie
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  • We Built an HVAC Business Together After 8 Years of Struggle, Hiring, and Systems with Cody & Emily

    We Built an HVAC Business Together After 8 Years of Struggle, Hiring, and Systems with Cody & Emily
    Apr 29 2026
    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Cody Brasseal, President of Acadiana Comfort Systems, and Emily Brasseal from Acadiana Comfort System. They discuss how they balance running a successful HVAC business while maintaining a strong family dynamic. They share lessons learned from their journey, including the importance of leadership, implementing AI to boost productivity, and maintaining clear communication between the office and the field. If you're looking to grow your own business or enhance your leadership skills, this episode is packed with valuable insights. They discuss their entrepreneurial journey, how they've scaled their business, and the importance of teamwork and family in the process. Expect to Learn: - How transformational leadership can improve communication and results in an HVAC business. - The impact of AI and digital tools in boosting employee performance and engagement. - The importance of having clean financials and tracking key performance indicators (KPIs) to scale successfully. - How building a positive, supportive company culture can lead to long-term success. Timestamps: [00:00:00] - Introduction. [00:00:46] - Transformational Leadership in Business [00:02:18] - AI Implementation and Success Meetings [00:04:58] - Learning from Failures [00:06:06] - Scaling the Business [00:09:30] - Understanding the Technicians' Perspective [00:12:25] - Cody's Perspective on Office-Field Communication [00:18:02] - Overcoming Fear in Hiring [00:21:32] - The Importance of Bookkeeping and KPIs [00:22:03] - Conclusion This Episode is Kindly Sponsored by: PartsTown: https://www.partstown.com/hvac-parts Podium: https://podium.com/knowitall Follow our Guests Cody Brasseal & Emily Brasseal and their Company: LinkedIn: https://www.linkedin.com/in/cody-brasseal-0355421ba Facebook: https://www.facebook.com/cody.j.brasseal/ Company Website: https://acadianacomfort.com/ Company Facebook: https://www.facebook.com/AcadianaComfort/ Company Instagram: https://www.instagram.com/acadiana_comfort/ 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__/
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    25 Min.
  • HVAC Techs Are Losing Refrigerant Using Gauges & Ignoring Probe Diagnostics - Eric Ruggles Part 2

    HVAC Techs Are Losing Refrigerant Using Gauges & Ignoring Probe Diagnostics - Eric Ruggles Part 2
    Apr 27 2026
    In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Eric Ruggles, Director of Engineering at Ritchie Engineering Co., Inc. (YELLOW JACKET), about airflow, static pressure, and modern diagnostic tools. In Part 2, they discuss proper system commissioning, checking pressure across components, and identifying airflow restrictions without disassembling equipment. Eric explains how tools like a digital manometer and wireless probes help measure system performance, airflow, and gas pressure. They also cover the shift from manifolds to probes, including concerns about refrigerant loss and system contamination. The conversation wraps up with practical insights on using airflow, temperature, and CFM measurements to determine true system capacity and improve service decisions. Gary and Eric discuss airflow testing, static pressure, and how modern tools improve system diagnostics and performance. They explain how proper commissioning sets baseline readings and helps identify issues like plugged coils or airflow restrictions. Eric describes how digital manometers and probes can measure pressure, airflow, and gas pressure while creating reports for customers. They also cover the shift from manifolds to probes, including concerns about refrigerant loss and contamination. They finish by explaining how airflow, temperature, and CFM measurements can confirm true system capacity and support better service decisions. Expect to Learn: How proper commissioning helps set baseline readings for system performance. How checking static pressure across components can reveal airflow restrictions. Why tools like digital manometers and probes improve accuracy in diagnostics. How wireless probes can measure pressure, airflow, and gas without losing refrigerant. How airflow, temperature, and CFM readings help confirm true system capacity. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to Eric Ruggles in Part 02 [02:03] - Checking static across devices [03:58] - Yellow Jacket Mano tool overview [05:32] - Probes vs. manifolds debate [12:08] - Calculate real BTU capacity without gauges [15:32] - 3-tool non-invasive maintenance [16:55] - Duct traverse with Y Jack Flow 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 Eric Ruggles on: LinkedIn: https://www.linkedin.com/in/eric-ruggles-28a84424/ Ritchie Engineering Co., Inc. (YELLOW JACKET): https://www.linkedin.com/company/ritchie-engineering-co-yellow-jacket-/ Ritchie Engineering Co., Inc. (YELLOW JACKET) - Website: https://yellowjacket.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
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    19 Min.
  • How Airflow vs Static Pressure Mistakes & Bad Filters Are Killing HVAC Systems - Eric Ruggles Part 1

    How Airflow vs Static Pressure Mistakes & Bad Filters Are Killing HVAC Systems - Eric Ruggles Part 1
    Apr 24 2026
    In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Eric Ruggles, Director of Engineering at Ritchie Engineering Co., Inc. (YELLOW JACKET), to discuss the key differences between airflow and static pressure and how to measure both correctly. Eric explains how airflow is calculated using air velocity and duct size, while static pressure is measured across system components to understand system performance. The conversation covers tools like hot wire anemometers and manometers, along with proper testing methods such as duct traversing and pressure tip placement. Gary and Eric also explore common issues like high static pressure caused by poor duct design, dirty filters, or oversized equipment, and how these problems can impact overall system efficiency. In this conversation, Eric explains the differences between airflow and static pressure in HVAC systems and how each one is measured. He describes how airflow is based on air speed and duct size, while static pressure shows how much resistance the system has. Eric and Gary discuss tools like hot wire anemometers and manometers, along with proper testing methods such as duct traversing and pressure tip placement. They also cover how issues like dirty filters, poor duct design, and system restrictions can raise static pressure and reduce overall system performance and airflow. Expect to Learn: How airflow and static pressure differ and why both matter in HVAC systems. How to use tools like hot wire anemometers and manometers for proper testing. How duct traversing helps get accurate airflow measurements. How static pressure testing can identify restrictions in filters and ductwork. How issues like dirty filters, poor duct design, and closed vents affect system performance. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Eric Ruggles in Part 1 [02:34] - Static pressure and airflow are different, and need different tools [04:18] - Eric: Air speed units (ft/min, m/s) & calculating volume [07:15] - Hot wire anemometer: traverse duct, app calculates CFM [10:56] - Static pressure: positive on supply, negative on return [16:48] - Total external static: check return & supply sides separately [19:42] - Remove filter to test restriction; 1" high-MERV vs. 5" filter [23:61] - Plugging vents raises static, harms the system 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 Eric Ruggles on: LinkedIn: https://www.linkedin.com/in/eric-ruggles-28a84424/ Ritchie Engineering Co., Inc. (YELLOW JACKET): https://www.linkedin.com/company/ritchie-engineering-co-yellow-jacket-/ Ritchie Engineering Co., Inc. (YELLOW JACKET) - Website: https://yellowjacket.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
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    25 Min.
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