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HVAC Know It All Podcast

Gary McCreadie - Licensed Refrigeration/HVAC Technician

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.

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  • 34 episodes
  • Avg 20 min
  • English

Episodes 34

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  • Wednesday · 14 min

    What Great HVAC Business Owners Do Differently to Build Accountable Teams with Bill Spohn

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero speak with Bill Spohn, Founder & CEO of TruTech Tools, LTD, who brings 38 years of experience in the HVAC industry. They discuss applying EOS, the Entrepreneurial Operating System to business operations. They cover meeting rhythms, transparency, core values, and ways smaller HVAC companies can adapt structured operating practices. Bill shares how TruTech Tools organizes functional departments, uses regular meetings to solve issues, and makes financial information visible while protecting sensitive HR details. He also discusses resources for owners who want to begin implementing EOS on their own. Expect To Learn: How EOS meeting rhythms can scale across functional departments. Why weekly leadership meetings should focus on solving issues. How to adapt EOS practices for small HVAC businesses with field teams. Where to draw the line between transparency and confidential HR information. How financial visibility can connect departments to profit sharing. Why core values can help employees make day-to-day decisions. How to start implementing EOS with books, free resources, and outside guidance. Timestamps: 00:00 – Introduction 00:52 – Using EOS from 12 to 200 employees 01:29 – Functional departments and cascading decisions 02:25 – Meeting cadence at TruTech Tools 04:27 – Adapting EOS for small HVAC businesses 06:41 – Open-book accounting and employee empowerment 08:46 – Organizing the business to reduce noise 11:46 – The book Traction and EOS resources 13:30 – Final advice for implementing EOS 14:15 – Closing remarks Follow our Guest Bill Spohn and his companies: LinkedIn: https://www.linkedin.com/in/billspohn/ Company LinkedIn: https://www.linkedin.com/company/trutech-tools-ltd/ Company Website: https://trutechtools.com/ 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__/

  • Monday · 19 min

    The HVAC industry's transition to A2L and A3 flammable refrigerants with Eric Ruggles Part 2

    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 charging A3 flammable refrigerants with Yellowjacket's hydrocarbon charging kit. They cover assembling the charging setup, pre-filling hoses before weighing in a critical charge, and using a gas retention valve to reduce refrigerant loss during connections and disconnections. Ruggles brings Yellowjacket's equipment perspective to the practical handling of A3s and A2Ls. He explains why hose volume, non-sparking vacuum-pump components, recovery-machine safety, equipment labeling, and technician precautions matter when working with flammable refrigerants. Key Takeaways How to pre-fill a charging hose with refrigerant and re-zero the scale before charging a critically charged system. Why small-diameter hoses help reduce the amount of residual refrigerant left in a charging setup. How a Schrader core depression valve can connect to a system before opening the core and limit refrigerant loss during removal. Why technicians should take A3 safety precautions when a small refrigeration unit does not clearly identify its refrigerant. How brushless or sealed motors, non-sparking switches, and integrated cords reduce ignition risks in A2L-compatible vacuum pumps. Why recovery machines require proper equipment because they handle a continuous flow of flammable refrigerant and involve refrigerant connections. Noteworthy Quotes "You can screw this on without letting any gas out of the system or without impacting the system at all." – Eric Ruggles "Then you have a fully filled line set before you even charge the system at all, and that's what you're starting with." – Eric Ruggles "The motors have to be changed typically to brushless DC or completely sealed motors from an AC perspective." – Eric Ruggles "You can't have any sparking at the vacuum pump or recovery machine when we're in an environment that could have an A2L or an A3 flammable refrigerants." – Eric Ruggles "Recovery machines are more critical, making sure that you're using the proper equipment." – Eric Ruggles Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:43] - Introduction to Eric Ruggles & the Focus of the Episode [02:15] - Eric begins demonstrating the A3 charging setup [03:58] - Charging the System [05:37] - Gas Retention Valve Purpose [06:37] - Non-A3 Charging Setup [09:33] - Why R290 Cylinders Are Small [11:00] - A3 Refrigerant Safety [13:04] - A2L Vacuum Pump Requirements [16:18] - Identifying A3 Refrigerants [19:00] - Where To Reach Out to Eric 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 and His Company on: LinkedIn: https://www.linkedin.com/in/eric-ruggles-28a84424/ Company LinkedIn: https://www.linkedin.com/company/ritchie-engineering-co-yellow-jacket-/ Company Website: https://yellowjacket.com/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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 Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

  • September 11 · 15 min

    A Practical Guide to R290 and A3 Refrigerant Safety with Eric Ruggles Part 1

    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 charging A3 hydrocarbon refrigerants, including R290 and R600A. They compare A3 and A2L flammability, cover ventilation and system purging, and explain safe pinch-off, charging, and leak-checking practices for hydrocarbon equipment. Ruggles brings YellowJacket's product perspective to the discussion of its hydrocarbon charging kit, including the scale, bottle stand, puncture valves, hoses, and pinch-off tool. His guidance connects the kit's features, bottle compatibility, and O-ring setup to the practical steps technicians use when servicing A3 systems. Key Takeaways How ventilation reduces the flammability risk when working with A2L refrigerants in open or well-ventilated areas. Why A3 refrigerants require a full purge and attention to where discharged gas can collect before a torch is lit. How residual R290 can create a flame at a leak point during brazing if refrigerant remains in the system. The importance of keeping a pinch-off tool clamped on the copper until the brazed joint has cooled. How to leak-check the pinched section before brazing to confirm refrigerant is not escaping. Why removing one O-ring from the bottle valve may be necessary for compatibility with certain refrigerant cylinders. Noteworthy Quotes "When it comes to A2Ls, ventilation is key." – Eric Ruggles "Recovering is difficult with A3s, just with the flammability concerns and then compressing it back into small canisters." – Eric Ruggles "As soon as you take the tool off, the copper's able to relax and then you can open up." – Eric Ruggles "It should work with every bottle out there." – Eric Ruggles Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Introduction to Eric Ruggles & the Focus of the Episode [03:01] - Difference between A3 Refrigerants and A2Ls [04:22] - How Flammable Is R290 When Working on a Leaking System? [05:05] - Importance of Fully Purging Residual Refrigerant Before Brazing [07:58] - Reason Behind Some A3 Systems Now Using Service Ports [10:22] - What's Included in the Yellow Jacket Hydrocarbon Charging Kit? [13:08] - How Does the New Scale's Auto-Off Feature Work? [13:48] - The Type Of O-Ring Required for an R290 Refrigerant Cylinder 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 and His Company on:LinkedIn: https://www.linkedin.com/in/eric-ruggles-28a84424/ Company LinkedIn: https://www.linkedin.com/company/ritchie-engineering-co-yellow-jacket-/ Company Website: https://yellowjacket.com/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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 Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

  • September 9 · 24 min

    How One Operating System Increased Our Profit by 41% with Bill Spohn

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero speak with Bill Spohn, Founder & CEO of TruTech Tools, LTD, who brings 38 years of experience in the HVAC industry. They discuss the Entrepreneurial Operating System (EOS), including meeting structure, decision-making, core values, accountability, and culture. Bill shares how TruTech Tools introduced EOS practices, used a Vision Traction Organizer, defined roles through the GWC framework, tracked leading indicators, and approached leadership succession. Expect To Learn: How EOS uses a two-page Vision Traction Organizer to guide business planning. Why regular meetings with clear agendas improve leadership communication. How to define core values through a keep, kill, and combine process. What the GWC framework means for assigning people to the right roles. Why quarterly conversations can support accountability and feedback. How leading indicators can help teams anticipate future performance. How structured meetings can help leaders identify, discuss, and solve issues. Timestamps: 00:00 – Introduction 01:14 – Discovering the Vision Traction Organizer 03:10 – Early EOS practices at TruTech Tools 04:29 – Implementing EOS and defining core values 07:32 – EOS impact on roles and accountability 10:57 – Quarterly conversations and giving people grace 13:27 – Defining culture through actions and process 16:57 – Succession planning and reducing Bill's day-to-day role 20:00 – Why Billy Spohn would not take over without EOS 20:22 – Visionary and integrator roles 22:55 – Identify, discuss, and solve meeting issues 23:51 – Using 90.io for EOS meeting preparation Follow our Guest Bill Spohn and his companies: LinkedIn: https://www.linkedin.com/in/billspohn/ Company LinkedIn: https://www.linkedin.com/company/trutech-tools-ltd/ Company Website: https://trutechtools.com/ 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__/

  • September 3 · 21 min

    The reality of owning an HVAC business vs working as an employee with Rich Ortega Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Rich Ortega, the C.O.O. and co-owner of On The Rock Services and podcast co-host of Commercial Kitchen Chronicles, about the realities of starting and growing a service business. Rich explains why people considering entrepreneurship should do their research before leaving their current jobs and seek advice from business owners who have built the type of company they actually want to create. He and Gary discuss the difference between owning a business and simply owning a job, including the importance of building infrastructure, creating systems, and eventually making the company self-sufficient. They also explore the less-discussed stresses of business growth, from managing employees and maintaining revenue to taking responsibility for employees and their families. Rich shares why hiring inexperienced people with the right personality can be preferable to hiring experienced technicians with bad habits, while also explaining the challenges of finding the time and financial margin to train new employees. Expect to Learn: ● Why researching the realities of business ownership is important before leaving your job. ● Why entrepreneurs should seek advice from people who have built the type of business they want to create. ● The difference between owning a business and simply owning a job. ● Why business growth brings additional stress, risk, and responsibility. ● The challenges and financial risks that come with hiring and managing employees. ● Why business owners eventually need to focus on relationships and generating new business opportunities. ● The advantages and challenges of hiring inexperienced employees with the right attitude and personality. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] — Guest Introduction in part 2 [04:30] — Why Research Matters Before Starting Your Own Business [05:36] — The Difference Between Owning a Business and Owning a Job [08:03] — The Hard Struggles Entrepreneurs Don't Usually Talk About [13:04] — The Stress and Responsibility of Growing With Employees [19:13] — Hiring Green vs. Experienced Technicians 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 Rich Ortega and His Companies on: LinkedIn: https://www.linkedin.com/in/rich-ortega-61460125b/ Company LinkedIn: https://www.linkedin.com/company/ontherockservices/ Company Website: https://www.ontherockservices.com/ Guest's Podcast LinkedIn: https://www.linkedin.com/company/commercial-kitchen-chronicles/ Guest's Podcast Website: https://commercialkitchenchronicles.com/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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

  • September 2 · 18 min

    AI for HVAC Contractors to Future-Proof Your Business Using ChatGPT with Daniel Quinonez

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero speak with Daniel Quinonez, Chief Operating Officer of Plumbing-Heating-Cooling Contractors -National Association. They discuss HVAC licensing standards, technician training, safety risks, workforce education, and preparing contractors for industry change. Dan shares perspectives on building trade careers through continuous learning, business education, community, and technology adoption. The conversation also covers how AI, data centers, and evolving tools can create opportunities for contractors who stay ready to adapt. Expect To Learn: Why EPA certification alone may not provide sufficient HVAC training. How licensing standards can support safer installations and consumer protection. Why training and mentorship remain essential throughout an HVAC career. How Pell Grants may expand access to qualifying workforce programs. When technicians often begin transitioning into HVAC business ownership. How business and leadership education can support career growth. Why contractors should treat AI and new technology as resources for efficiency. Timestamps: 00:00 - Daniel Quinonez returns for part two 01:55 - Licensing standards for HVAC technicians 02:58 - How diluted licensing can affect quality 04:50 - A costly water heater installation example 05:44 - Carbon monoxide and combustion safety risks 07:20 - Pell Grants for workforce education 08:16 - Career opportunities in the trades 11:04 - Transitioning from technician to business owner 14:03 - Building a future-ready HVAC business 16:14 - Staying open to new tools and technology Follow our Guest Daniel Quinonez: LinkedIn: https://www.linkedin.com/in/daniel-quinonez-690ba68/ Company LinkedIn: https://www.linkedin.com/company/phccnational/ Company Website: http://www.phccweb.org/ 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__/

  • September 1 · 21 min

    If You're Not Ready to Sacrifice, Don't Start a Business | Rich Ortega Part 1

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Rich Ortega, the C.O.O. and co-owner of On The Rock Services and podcast co-host of Commercial Kitchen Chronicles, to discuss the realities of starting and running a service business. Rich shares his experience working in the commercial kitchen industry for 20 years, including his time working for his father and grandfather before eventually moving into larger companies and starting his own business. The conversation begins with the challenges of working with independent restaurants, including low budgets, price objections, and the difficulty of getting customers to understand the true cost of repairs and maintenance. Rich explains why he shifted his focus toward larger chain and multi-unit operations and how those customers provide more opportunities to perform profitable repairs and maintenance. Gary and Rich then discuss Rich's journey into entrepreneurship, including the experiences that pushed him to leave his previous employer, the importance of building a strong personal reputation, and how existing customer relationships helped him establish his own company. They also explore the less-discussed side of business ownership, including long hours, being available 24/7, sacrificing vacations and free time, and the intense workload during the first few years. Rich shares what his first year was really like and why, despite the exhaustion, he genuinely enjoyed the journey. Expect to Learn: ● The challenges of servicing independent restaurants and dealing with limited repair budgets. ● Why Rich shifted his business toward larger chain and multi-unit restaurant operations. ● How to identify additional legitimate repair and maintenance opportunities during service calls. ● Rich's journey from working for his family and larger companies to becoming an entrepreneur. ● Why building a strong personal reputation can help when starting a new service business. ● The sacrifices, long hours, and lack of work-life balance that can come with starting a business. ● What Rich's first six months and first year in business were really like. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Introduction to Rich Ortega & the Focus of the Episode [03:21] - The Challenges of Servicing Independent Restaurants [07:10] - Why Rich Focused on Larger Restaurant Accounts [10:17] - Rich's Journey Into Entrepreneurship [17:36] - The Sacrifices & Reality of Business Ownership [20:38] - Why Rich Enjoyed the Journey Despite the Exhaustion 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 Rich Ortega and His Companies on: LinkedIn: https://www.linkedin.com/in/rich-ortega-61460125b/ Company LinkedIn: https://www.linkedin.com/company/ontherockservices/ Company Website: https://www.ontherockservices.com/ Guest's Podcast LinkedIn: https://www.linkedin.com/company/commercial-kitchen-chronicles/ Guest's Podcast Website: https://commercialkitchenchronicles.com/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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 Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

  • August 27 · 18 min

    How to Diagnose Oil Return Problems Before They Damage a Compressor

    Episode Overview In this episode of the HVAC Know It All Podcast, Host Gary McCreadie Director of Player Development and Head Coach at Shelburne Soccer Club and President of McCreadie HVAC & Refrigeration Services and HVAC Know It All Inc, examines compressor oil return, including why lubrication matters, how low load and reduced airflow affect oil movement, and how oil separators can protect compressors. Listeners will learn how to investigate oil-failure alarms, improve return velocity, and avoid replacing controls before finding the underlying system issue. Drawing on a past five-story rooftop-unit service case and observations from LG VRF training, the host explains how improper building automation programming contributed to repeated compressor failures. That field perspective connects oil separators, inverter oil-return modes, suction piping, traps, double suction risers, and compressor unloading to practical troubleshooting decisions. Key Takeaways Why inadequate lubrication can cause compressor seizure, metal debris, and component damage. How an oil separator can return oil from the discharge line to the suction line without circulating as much oil through the system. How reduced airflow and low suction pressure can prevent oil from returning to a compressor. Why an oil-failure control trip requires troubleshooting oil pressure and return rather than immediately replacing the control. How suction-line traps and double suction risers help maintain oil-return velocity in vertical piping. The importance of periodically loading inverter or unloaded compressor capacity to bring pooled oil back to the compressor. Key Timestamps: [00:00] - Sponsor: Factory Direct Filters [02:32] - Why oil is important for compressor lubrication [04:15] - How VRF oil-return mode raises compressor speed to return oil at low load. [07:27] - Why an Oil Separator Was Recommended for the System [10:58] - How Oil Failure Controls Work and Why You Shouldn't Just Reset Them [12:52] - Oil Traps and Double Suction Risers [17:21] - Troubleshooting Oil Return Issues and Using the Oil Sight Glass 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 Host on: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc McCreadie HVAC & Refrigeration Services: https://www.linkedin.com/company/mccreadie-hvac-refrigeration-services/ Shelburne Soccer Club: https://shelburnesoccerclub.sportngin.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

  • August 26 · 21 min

    Why HVAC Technicians Struggle to Build Successful Businesses with Daniel Quinonez

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero speak with Daniel Quinonez, Chief Operating Officer of Plumbing-Heating-Cooling Contractors -National Association. They discuss contractor communities, member education, apprenticeship programs, and the operational challenges facing small HVAC businesses. Dan explains how contractors can access peer support, business resources, and training opportunities through membership. He also shares his perspective on hiring green apprentices versus experienced technicians and the fragmented approach to trade training across the United States. Expect To Learn: How contractor communities can provide peer support and business resources. Why business operations can be challenging for technicians who become owners. Ways AI can support administrative work without replacing technicians. The tradeoffs between hiring experienced technicians and training apprentices. How contractor-sponsored apprenticeship programs combine coursework and hands-on experience. Why training requirements and licensing vary across U.S. states. The case for a more coordinated national strategy for trade education. Timestamps: 00:00 - Introduction 01:27 - PHCC's history, membership, and education programs 05:05 - Benefits of joining a contractor chapter 06:44 - Common needs of small contractors 09:25 - Operational and time-management challenges 11:53 - Hiring apprentices versus experienced technicians 13:24 - Online apprenticeship training and contractor sponsorship 17:30 - Training capacity at large and small companies 18:32 - The lack of a national training strategy 20:04 - China's unified trade-training standards Follow our Guest Daniel Quinonez: LinkedIn: https://www.linkedin.com/in/daniel-quinonez-690ba68/ Company LinkedIn: https://www.linkedin.com/company/phccnational/ Company Website: https://www.phccweb.org/ 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__/

  • August 24 · 19 min

    HVAC Mental Health - Transformational Leadership

    Episode Overview In this episode of the HVAC Know It All Podcast, Host Gary McCreadie Director of Player Development and Head Coach at Shelburne Soccer Club and President of McCreadie HVAC & Refrigeration Services and HVAC Know It All Inc, talks about volunteer leadership, workplace burnout, and gratitude. Using experiences from coaching and leading a youth soccer club, He explains how HVAC business owners, service managers, and technicians can use encouragement, communication, and patient development to help people perform at their best. He draws on the pressure of managing complaints and limited positive feedback while serving as president of the Shelburne Soccer Club and coaching soccer. That experience informs a leadership perspective centered on recognizing effort, building confidence in small steps, and supporting people in every direction of an organization. Key Takeaways How consistent encouragement can help a struggling employee or player rebuild confidence and improve performance. Why gratitude matters in volunteer roles, field work, and leadership positions where positive feedback can be limited. The value of assigning manageable tasks and increasing responsibility as someone builds confidence. How transformational leadership differs from ridicule, angry emails, and focusing only on mistakes. Why leaders also need honest positive feedback when they are carrying responsibility without support above them. The connection between toxic work environments, burnout, and employees deciding to leave. Key Timestamps [00:00] – Episode Introduction [05:18] – The Mental Strain of Thankless Volunteer Work [07:11] – Lack of Gratitude and What Employees Need From Leaders [08:47] – Coaching a struggling player through confidence-building encouragement [11:07] – Why Leadership and Support Need to Go Both Ways [14:17] – Why employees should share positive feedback with good leaders [16:37] – Sharing Gratitude and Building People Up Through Positive Reinforcement 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 Host & His Companies: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc McCreadie HVAC & Refrigeration Services: https://www.linkedin.com/company/mccreadie-hvac-refrigeration-services/ Shelburne Soccer Club: https://shelburnesoccerclub.sportngin.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 Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

  • August 19 · 21 min

    HVAC Business Growth for Contractors Being Crushed by Rebates & Complexity with Samir Pendse

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Samir Pendse, Co-founder & CEO at Coral exploring the future of HVAC financing, heat pump adoption, rebate programs, and innovative business models like HVAC-as-a-Service. They discuss why affordability remains the biggest barrier to energy-efficient equipment, how contractors can simplify financing for homeowners, and why marketing should focus on comfort and savings rather than politics. The conversation also covers the challenges small contractors face, the evolution of financing options, and what the future of home comfort solutions looks like. Coral is a company helping HVAC contractors simplify rebates, incentives, and financing for homeowners. Coral enables contractors to offer affordable energy-efficient systems without navigating complex incentive programs, making high-efficiency HVAC upgrades more accessible across the United States. Expect To Learn: Why affordability is the biggest challenge for heat pump adoption. How financing can increase sales of high-efficiency HVAC systems. Why comfort and energy savings should be the primary marketing message for heat pumps. The unique challenges small HVAC contractors face with rebate programs. How contractor coordination impacts energy-efficiency projects. The rise of HVAC-as-a-Service and subscription-based home comfort. Coral's vision for simplifying financing, incentives, and rebates for contractors. Timestamps : 00:00 - Introduction 00:53 - Are Heat Pumps Becoming the New Standard? 02:01 - The Politics of Heat Pump Marketing 04:25 - Keeping Politics Out of HVAC Sales 05:54 - Why Economics Will Drive Heat Pump Growth 07:21 - Can Small Contractors Keep Up With Incentive Programs? 09:25 - Coordinating HVAC, Electrical & Weatherization Projects 10:56 - The Future of HVAC Financing 13:37 - HVAC as a Service: Subscription-Based Heating & Cooling 14:56 - Why HVAC Subscriptions Are Growing 16:25 - Partnerships Between Manufacturers, Distributors & Financing 17:41 - Why HVAC as a Service Makes Sense for Homeowners 20:12 - Coral's Expansion Plans & Final Advice for Contractors 21:06 - Closing Remarks Follow our Guest Samir Pendse: LinkedIn: https://www.linkedin.com/in/samirpendse/ Company LinkedIn: https://www.linkedin.com/company/startcoral/ Company Website: https://www.startcoral.com/ 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__/

  • August 12 · 19 min

    HVAC Sales Struggles for Contractors to Close Deals using Upfront Rebates with Samir Pendse

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Samir Pendse, Co-founder & CEO at Coral. He shares how Coral simplifies that process by guaranteeing rebates upfront, connecting homeowners with the best financing options, and helping contractors close more deals without adding administrative burden. The conversation also explores financing for repairs, contractor operations, working capital challenges, and how evolving government rebate programs are shaping the future of the HVAC industry. Coral is a platform that helps HVAC contractors simplify rebate management and financing for energy-efficient home upgrades. By combining guaranteed upfront rebates with low-cost financing options, Coral enables contractors to improve close rates, streamline operations, and make high-efficiency systems more affordable for homeowners. Expect To Learn: How upfront rebates improve homeowner affordability and contractor sales. Why financing has become essential for modern HVAC replacements. The operational challenges contractors face when managing rebate programs. How rebate complexity impacts sales, marketing, and back-office workflows. The importance of working capital when contractors float rebate payments. Why repair financing represents a major untapped opportunity. What upcoming government rebate programs mean for HVAC contractors. Timestamps: 00:00 – Introduction 01:12 – The Affordability Challenge Behind Heat Pumps and Energy Upgrades 01:54 – Can Financing Help Homeowners Cover Costly HVAC Repairs? 03:37 – Why Repair Financing Matters Just as Much as System Replacement 06:34 – How Contractors Can Use Rebates as a Competitive Advantage 08:11 – Creating More Confidence at the Kitchen Table with Guaranteed Rebates 09:34 – Understanding How HVAC Rebate Programs Work 12:03 – Should Contractors Lead Every Sales Conversation with Financing? 13:59 – Building Contractor Operations Around Rebate Programs 16:21 – The Working Capital Challenge of Waiting for Rebate Payments 17:09 – What the Latest Federal Rebate Guidance Means for HVAC Contractors Follow our Guest Samir Pendse: LinkedIn: https://www.linkedin.com/in/samirpendse/ Company LinkedIn: https://www.linkedin.com/company/startcoral/ Company Website: https://www.startcoral.com/ 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__/

  • August 6 · 19 min

    HVAC System Breakdowns for Managers to Avoid Catastrophic Shutdowns - Clayton & Robert Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Clayton Cassady, President, and Robert Laframboise, Vice President, Class A Operator at RC Mechanical Canada, about industrial ammonia refrigeration systems and the role of plant operators. They explain how ammonia plants work, common system pressures, direct and indirect refrigeration, operator training, control room duties, system redundancy, emergency response, and how proper operation helps keep products safe while supporting reliable plant performance. Gary, Clayton, and Robert discuss how industrial ammonia refrigeration plants operate and what it takes to keep them running safely. They explain direct and indirect refrigeration systems, common operating pressures, operator training, control room responsibilities, system redundancy, emergency response, and how proper plant operation helps protect refrigerated products and maintain reliable performance. Expect to Learn: How direct and indirect ammonia refrigeration systems are used in industrial facilities. What operators monitor in the control room to keep refrigeration systems running safely. How operator training prepares workers for plant operation, safety, and certification exams. Why redundancy and spare parts are important for protecting refrigerated products. How operators respond to power failures and other plant emergencies to keep systems operating. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to Clayton & Robert in Part 2 [01:58] - Direct vs indirect refrigeration systems [03:09] - Ammonia pressures: discharge 150-180 PSI, suction 30–35 PSI [03:48] - Secondary refrigerants used in hockey rinks & production [06:45] - Hockey rink economics: costs, declining ice time, dry-pad growth [08:02] - Operator training: 10-week program covering theory, safety & exams [13:00] - Redundancy: multiple compressors & spare parts [16:29] - Emergency shutdowns, power failures & system restarts [18:59] - How to contact RC Mechanical & upcoming textbook 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 Guests Clayton Cassady and Robert Laframboise on: LinkedIn Profile - Clayton: https://www.linkedin.com/in/clayton-cassady-04a484205/ LinkedIn Profile - Robert: https://www.linkedin.com/in/robert-laframboise-805100204/ LinkedIn - RC Mechanical Canada: https://www.linkedin.com/company/rc-mechanical-canada/ Website - RC Mechanical Canada: https://www.rcmechanical.ca/ Follow the Host on: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc Website: https://www.hvacknowitall.com Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/615679643061429/ 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

  • August 5 · 21 min

    HVAC Pricing, AI Automation & Financial Strategy with Valeria Velázquez

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Valeria Velázquez, Director of Customer Strategy at WorkHero and Co-Founder of Climate Champions to explore the balance between financial discipline and entrepreneurial vision. They discuss why accountants should provide clarity not dictate strategy, how contractors can use financial data to make better decisions, common operational mistakes they see across the industry, pricing in competitive markets, and how AI is reshaping the future of HVAC operations. Having worked with more than 45 HVAC contractors, she specializes in helping businesses improve their financial visibility, operational efficiency, pricing strategies, and office workflows. Her unique perspective combines real-world contracting experience with modern automation and AI-driven operations. Expect To Learn: Why financial reporting should support business vision, not replace it. The difference between accountants, advisors, and business decision-makers. The common operational patterns successful HVAC contractors share. Why clean data and accurate reporting are essential for growth. How to price profitably without simply matching competitors. Why small contractors often undervalue their services. How AI and automation will transform HVAC office operations by 2030. Timestamps : 00:00 – Introduction 00:42 – Finance vs. business vision 02:17 – The role of financial professionals 03:55 – Should accountants influence strategy? 05:25 – Budget limits and business growth 07:06 – Common patterns in successful HVAC businesses 08:20 – Why clean data matters 09:15 – Common HVAC pricing mistakes 10:08 – Pricing in a competitive market 11:00 – Pricing for long-term profitability 13:06 – Should small HVAC companies charge less? 14:36 – The future of AI in HVAC 17:39 – How WorkHero helps contractors 19:10 – Working in HVAC operations and AI 20:47 – Final thoughts & closing remarks Follow our Guest Valeria Velázquez & her Companies: LinkedIn: https://www.linkedin.com/in/valeria-velazquez-6a00402b7/ Climate Champions: https://www.linkedin.com/company/callthechampions/ WorkHero: https://www.linkedin.com/company/workherohvac/ Climate Champions: https://www.callthechampions.com/ WorkHero: https://www.workhero.pro/ WorkHero: https://www.instagram.com/workhero__/ 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__/

  • August 3 · 19 min

    The Industry Running on Ammonia is Facing a Massive Skills Crisis with Clayton & Robert Part 1

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Clayton Cassady, President, & Robert Laframboise, Vice President, Class A Operator at RC Mechanical Canada to discuss industrial ammonia refrigeration systems and how they operate. Clayton explains why ammonia is widely used in large facilities, the safety procedures required when working with it, and how ammonia leak detection systems help protect operators. Robert shares how RC Mechanical trains and supplies refrigeration operators for ammonia plants, covering Class A and Class B certifications, online and in person training, and industry staffing challenges. The conversation also explores plant operation, screw and reciprocating compressors, and the role of refrigeration operators in keeping industrial facilities running safely and efficiently. In this conversation, Clayton explains what industrial ammonia refrigeration systems are and why ammonia is used in large facilities such as cold storage warehouses, food production plants, and hockey rinks. He discusses ammonia safety, leak detection, ventilation, and the procedures required when working with the system. Robert and Gary explore topics such as refrigeration operator training, Class A and Class B certifications, industry staffing challenges, and the role of operators in ammonia plants. They also discuss plant operation, screw and reciprocating compressors, and why proper training and safety practices are important for reliable operation. Expect to Learn: What industrial ammonia refrigeration systems are and why ammonia is used in large facilities. The safety procedures, leak detection systems, and PPE required when working with ammonia. How refrigeration operators are trained, certified, and placed in ammonia plants. The difference between screw and reciprocating compressors used in ammonia systems. Why proper training, safe operating practices, and skilled operators are important for reliable plant operation. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Guests Clayton and Robert in Part 1 [02:48] - Ammonia Refrigeration Basics [04:07] - Why Ammonia Over Synthetics? [05:27] - RC Mechanical's Operator Supply Business [08:54] - Safety Protocols & Ammonia Sensors [12:48] - RC Mechanical's Training Program Details [15:29] - Operator Classifications & Training [17:24] - Compressor Types & Screw Compressor Operation 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 Guests Clayton Cassady and Robert Laframboise on: LinkedIn Profile - Clayton: https://www.linkedin.com/in/clayton-cassady-04a484205/ LinkedIn Profile - Robert: https://www.linkedin.com/in/robert-laframboise-805100204/ LinkedIn - RC Mechanical Canada: https://www.linkedin.com/company/rc-mechanical-canada/ Website - RC Mechanical Canada: https://www.rcmechanical.ca/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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

  • July 30 · 20 min

    HVAC Heat Recovery Systems for Buildings That Replace Boilers and Reduce Costs with David Kim Part 2

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with David Kim, Engineering Manager at LG Electronics, about advanced VRF technology and new heating and cooling solutions. David explains how LG's Hydro Kit works for hydronic heating and domestic hot water, along with water communication kits for larger systems. The discussion also covers chiller applications, data center cooling, cold climate residential heat pumps, dual fuel systems, smart thermostat controls, and AI features that improve system performance and energy efficiency. Gary and David discuss LG's latest VRF solutions and how they can improve heating, cooling, and hot water applications. David explains how the Hydro Kit and water communication kit support hydronic systems, along with their use in boiler replacement projects. The conversation also covers chiller solutions for larger applications, residential cold climate heat pumps, dual fuel systems, smart thermostat controls, and AI features that help improve efficiency and overall system performance. Expect to Learn: How LG's Hydro Kit supports hydronic heating and domestic hot water applications. How water communication kits expand VRF capacity for small and large projects. Why chillers are a better choice for large data center cooling applications. How LG cold climate heat pumps and dual fuel systems improve residential heating. How LG's smart controls, ThinkQ app, and AI features help improve system performance and efficiency. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [00:42] - Intro to David Kim in Part 02 [02:06] - Hydro kit explained: air-to-water, mid-temp vs high-temp (up to 176°F) [03:45] - Replacing boilers & water communication kit (1 to 32 ton capacity) [06:49] - LG chiller lineup for data centres & large applications [11:07] - Residential cold climate heat pumps: Deluxe unit works at -35°C [15:03] - Dual fuel systems: 24V control vs LG thermostat with EIM for true variable speed [18:11] - AI snow removal feature using AccuWeather data 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 David Kim on: LinkedIn Profile: https://www.linkedin.com/in/david-kim-156b9878/ LinkedIn - LG Electronics: https://www.linkedin.com/company/lg-electronics Follow the Host on: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc Website: https://www.hvacknowitall.com Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/615679643061429/ 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

  • July 29 · 20 min

    How to Scale an HVAC Business from $500K to $5M | Office Management, Marketing & Operations with Valeria Velázquez

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Valeria Velázquez, Director of Customer Strategy at WorkHero and Co-Founder of Climate Champions to discuss what it really takes to grow and scale a successful HVAC business. Drawing from her experience helping transform an HVAC company from under $1 million to $5 million in revenue, Valeria shares practical lessons on business operations, leadership, marketing, customer retention, and building high-performing office teams. She also reflects on growing up in an HVAC family, the importance of community involvement, and why mastering the fundamentals is the key to sustainable growth. Valeria Velázquez is an HVAC business operations leader with extensive experience scaling residential HVAC companies through operational excellence, leadership, and process improvement. After helping grow an HVAC business from a small operation into a multi-million-dollar business, she has become a trusted voice on office management, customer experience, marketing systems, and helping contractors build businesses that can grow without sacrificing service quality. Expect To Learn: - Why being a great technician doesn't automatically make you a great business owner. - How community involvement can become one of your strongest marketing strategies. - The systems every HVAC company needs before investing in paid marketing. - Why recurring maintenance agreements are essential for long-term growth. - How a strong office manager can transform an HVAC business. - The biggest lessons from scaling an HVAC company from $500K to $5M. - Practical advice for dispatchers, CSRs, and office staff looking to grow into leadership roles. Timestamps: 00:00 – Introduction 01:24 – Why Small Business Owners Strengthen Their Communities 04:35 – Growing Up in an HVAC Family 07:42 – Scaling an HVAC Business from $500K to $5 Million 09:54 – Building Recurring Revenue with Service Agreements 14:27 – Why Great Office Managers Drive Business Growth. 15:36 – Where Growth Really Comes From 17:12 – The Marketing Strategies Every HVAC Contractor Needs 18:50 – Building a High-Performing Office Team 19:22 – Advice for Dispatchers and CSRs Who Want to Lead Follow our Guest Valeria Velázquez: LinkedIn: https://www.linkedin.com/in/valeria-velazquez-6a00402b7/ Company LinkedIn: Climate Champions: https://www.linkedin.com/company/callthechampions/ WorkHero: https://www.linkedin.com/company/workherohvac/ Company Website: Climate Champions: https://www.callthechampions.com/ WorkHero: https://www.workhero.pro/ Company Instagram: WorkHero: https://www.instagram.com/workhero__/ 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__/

  • July 29 · 22 min

    AI-Driven VRF Systems for HVAC Pros to Improve Efficiency using LG Multi V i Tech - David Kim Part 1

    In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by David Kim, Engineering Manager at LG Electronics, to discuss variable refrigerant flow systems and how they work. David explains the difference between heat pump and heat recovery VRF systems, how inverter compressors and electronic expansion valves control refrigerant flow, and why each indoor unit can operate with its own set point. The conversation covers VRF system design, piping, refrigerant charge calculations, and the use of LG's LATS HVAC software. Gary and David also discuss the importance of nitrogen brazing, the temporary use of filter driers after service, and the move from R410A to R32 refrigerant. They also explore LG's Multi V i system, including its improved heating performance, service data tracking, building automation options, and higher system capacity. In this conversation, David explains what variable refrigerant flow systems are and how they provide heating and cooling to different indoor zones. He discusses the difference between heat pump and heat recovery systems, along with how inverter compressors and electronic expansion valves control refrigerant flow. David and Gary explore topics such as VRF system design, piping, refrigerant charge, nitrogen brazing, and the use of LG's LATS HVAC software. They also discuss the move from R410A to R32 refrigerant, the features of LG's Multi V i system, and why proper installation, system design, and service practices are important for reliable performance. Expect to Learn: What variable refrigerant flow systems are and how they provide heating and cooling to different zones. The difference between heat pump and heat recovery VRF systems and how each one operates. How inverter compressors and electronic expansion valves control refrigerant flow. Why proper VRF design, piping, refrigerant charge, and nitrogen brazing are important. LG's Multi V i system uses R32 refrigerant, improved controls, service data, and higher capacity. Episode Highlights: [00:00] - Sponsor Ad: Factory Direct Filters [00:42] - Intro to Guest David Kim from LG in Part 1 [02:51] - VRF Education: Definition and Heat Recovery [05:17] - History of VRF: From Asia to North America [07:05] - How Modulation Works: Inverter Compressors & Electronic Expansion Valves (EEVs) [08:52] - Comparison: Mini-Split Metering vs. VRF Metering [10:08] - System Design & Sizing: Using LG's LATS HVAC Software [13:28] - Installation Best Practices: The Importance of Nitrogen Brazing [14:51] - Service Debate: Filter Dryers on VRF Systems (Temporary vs. Permanent) [17:02] - New Technology: Introducing the Multi V i (R32 Refrigerant & AI Features) [20:13] - Building Automation Integration and Modular Capacity 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 David Kim on: LinkedIn Profile: https://www.linkedin.com/in/david-kim-156b9878/ LinkedIn - LG Electronics: https://www.linkedin.com/company/lg-electronics/ Follow the Host on: LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc 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

  • July 23 · 21 min

    HVAC Troubleshooting Mindset for Technicians to Fix High Pressure Problems without Replacing Parts

    In this episode of the HVAC Know It All Podcast, Host Gary McCreadie Director of Player Development and Head Coach at Shelburne Soccer Club and President of McCreadie HVAC & Refrigeration Services and HVAC Know It All Inc, shares a service call involving a Lennox rooftop unit that kept shutting down on high pressure. Gary explains how he checked the airflow, condenser, pressure switch, refrigerant pressures, contactor, filter drier, and TX valve while trying to find the restriction. He also describes how equalizing the system pressures and tapping the TX valve helped the unit start running again. The episode covers compressor pressure relief, microchannel coil limits, the use of a system lubricant, and the value of testing different solutions before replacing expensive parts. Gary discusses a difficult service call involving a Lennox rooftop unit that kept shutting down on high pressure. He explains how he checked the airflow, condenser fan, pressure switch, refrigerant pressures, contactor, filter drier, and TX valve while searching for the cause. The episode covers how equalizing the system pressures and tapping the TX valve helped the unit run again, along with compressor pressure relief, microchannel coil limits, system additives, and the importance of trying different tests before replacing costly parts. Expect to Learn: How a stuck TX valve can cause low suction pressure and high head pressure. Why checking airflow, fans, coils, and pressure switches should come before using gauges. How equalizing system pressures and tapping the TX valve helped restore cooling. Why compressor relief valves and contactors are important for system protection. How testing different solutions can prevent unnecessary and costly refrigeration repairs. Episode Highlights: [00:00] - Sponsor: Factory Direct Filters ad [01:33] - Intro: Service call overview & 30-year career context [03:22] - High pressure switch explained & rapid cycling issue [05:46] - Pressure differential theory & refrigerant logging in condenser [08:19] - Second visit: Zero low-side pressure, high-side off the charts [11:07] - Fix attempt: Equalizing pressure & smacking TX valve works [15:07] - Contactor replacement & SmartShot additive experiment [19:34] - Final lesson: Don't give up, try new approaches, learn from every call 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 Host on: LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/ Website: https://www.hvacknowitall.com LinkedIn - HVAC Know It All Inc.: https://www.linkedin.com/company/hvac-know-it-all-inc McCreadie HVAC & Refrigeration Services: https://www.linkedin.com/company/mccreadie-hvac-refrigeration-services/ Shelburne Soccer Club: https://shelburnesoccerclub.sportngin.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

  • July 22 · 14 min

    HVAC Business Growth Secrets: Hiring, Apprentices & Scaling Without Marketing - Cornelio Martinez

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with Cornelio Martinez, Owner at Maize Mechanical, he shares the journey of building a successful HVAC business by focusing on relationships, strategic hiring, and long-term growth instead of chasing rapid expansion. He explains how partnerships, mentorship, and investing in apprentices helped him scale sustainably while navigating the challenges of staffing, sales, and business operations. The conversation also explores his vision for contractor co-ops, workforce development, and how small businesses can compete with large private equity-backed companies. Cornelio Martinez is an advocate for electrification, workforce development, and sustainable business growth. After starting as a subcontractor, he strategically grew his company through partnerships, mentorship, and investing in apprentices. Today, he's passionate about helping independent contractors build stronger businesses while creating more opportunities for the next generation of skilled trades professionals. Expect To Learn: Why strategic partnerships can accelerate business growth. How to know when it's time to hire employees instead of subcontractors. The pros and cons of using subcontractors versus building an in-house team. Why investing in apprentices creates long-term business stability. How transparency impacts customer sales conversations. The biggest financial lessons every growing contractor should understand. How contractor co-ops could help small HVAC businesses compete with larger organizations. Timestamps: 00:00 – Introduction 00:44 – When Is the Right Time to Hire Your Next Employee? 01:53 – Learning from Mentors and Building Strategic Partnerships 03:07 – Growing Through Relationships Instead of Marketing 03:34 – Subcontractors vs. Hiring Your Own Apprentices 04:08 – Why Investing in Employees Pays Off Long-Term 06:49 – Scaling Without Overextending Your Business 07:37 – Avoiding Technical Overload During Sales Conversations 08:59 – Selling with Logic, Emotion, and Trust 11:54 – Competing with Private Equity Through Collective Buying Power 12:38 – Streamlining Operations and Holding Contractors Accountable 13:54 – Final Thoughts Follow our Guest Cornelio Martinez: LinkedIn: https://www.linkedin.com/in/cornelio-martinez-38660b40/ Instagram: https://www.instagram.com/corneliomartinez/ Company Website: https://maizemechanical.com/ Company Facebook: https://web.facebook.com/people/Maize-Mechanical/61556354961579/# 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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