Hvac Know It All Podcast

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

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 Systems. As a husband-and-wife team, they share their experiences of building a successful HVAC business while navigating the challenges of balancing work and family life. The conversation dives into their journey, offering valuable insights into overcoming obstacles such as office and field friction, understanding the importance of family support, and creating a positive company culture. Cody has extensive experience in the field, while Emily joined the business after working as an occupational therapist. Together, they've built a thriving business and share their personal and professional journey of working together as a married couple, raising a family, and managing the challenges of owning a small business.   Expect to Learn - How to balance family life and running a business tog

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 the key factors that impact system performance and compressor life. In Part 3, they focus on the importance of proper maintenance, airflow, and system setup from installation through operation. Matthew explains how correct airflow, refrigerant charge, and fluid mixtures like glycol all play a role in system efficiency and reliability. They also discuss common field mistakes such as poor airflow around equipment, incorrect glycol ratios, and refrigerant loss during servicing. The conversation wraps up with practical tips on maintenance practices, using probes instead of gauges, and avoiding contamination to keep systems running properly over time. Gary and Matthew discuss the key steps needed to keep HVAC systems running properly, focusing on maintenance, airflow, and correct setup. They explain how proper airflow across indoor and outdoor units is critical for syst

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 d

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

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

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

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

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

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 lo

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 de

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Christopher Rystedt, Technical Sales and Trainer at Airzone Control, to discuss VRF and VRV zoning and how it applies to air distribution systems. Christopher explains how zoning can be used with inverter-driven equipment to deliver precise comfort by controlling airflow to individual spaces using modulating dampers and smart controls. The conversation covers how Airzone integrates with over 200 HVAC brands through manufacturer-supported communication protocols, allowing full system functionality without losing performance. Gary and Christopher also explore system design, control strategies, and how modern zoning helps reduce equipment load while improving comfort and efficiency. In this conversation, Christopher explains how VRF and VRV zoning can be applied to ducted systems to control airflow to individual rooms based on demand. He describes how modulating dampers and smart controls adjust airflow levels instead of simply ope

In this episode of the HVAC Know It All Podcast, host Gary McCreadie welcomes Jim Bergmann, President of measureQuick and Director of New Product Development at Redfish Instruments Inc, to discuss system cleanup after moisture contamination and compressor burnouts. Jim explains why moisture in POE oil cannot be fully removed with evacuation and highlights the importance of using filter dryers and proper procedures. The conversation covers real-world scenarios such as water entering a system and the steps needed to reduce damage and extend equipment life. Gary and Jim also talk about evacuation best practices, decay testing, and how poor installation habits can lead to long-term system failure. In this conversation, Jim explains how moisture affects refrigeration systems and why it cannot be fully removed from POE oil using evacuation alone. He discusses how technicians should rely on filter dryers, oil changes, and proper cleanup methods to reduce contamination. Jim and Gary talk about real situations like wa

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, who shares valuable insights from his experience in the trades industry, guiding entrepreneurs on how to properly set themselves up financially before taking the leap into business ownership. Austin Wendel is a seasoned business owner in the trades industry, with years of experience helping others navigate the challenges of starting and growing a business. Known for his practical approach to financial planning and business growth, Austin breaks down key areas such as personal credit, savings, emotional preparation, and the importance of separating business and personal finances.   Expect to Learn - The significance of having a good credit score and how it affects your business. - How to calculate savings and ensure you have enough financial runway before starting. - The emotional preparation needed for business ownership includes f

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with John Anderson, Senior Regional HVAC Technical Trainer at Sila Services and former Service Manager and Technician at Burns & McBride Home Comfort, about practical HVAC maintenance and system checks. In Part 2, they discuss how technicians can use observation, temperature measurements, and airflow checks to evaluate a system before connecting gauges. John explains simple ways to estimate evaporator performance using return air temperature and suction line temperature. Gary and John also cover electrical inspections, including checking contactors and testing coils for shorts. The conversation ends with a discussion about preventative maintenance ideas, such as scheduled capacitor replacement and the importance of keeping coils clean. Gary and John discuss practical HVAC maintenance checks and how technicians can assess system performance before connecting gauges. They explain how observing airflow, temperature differences, conden

In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by John Anderson, Senior Regional HVAC Technical Trainer at Sila Services, Formerly Service Manager and Technician at Burns & McBride Home Comfort, to discuss spring HVAC maintenance and the key checks technicians should perform before the cooling season begins. John shares practical methods for inspecting systems using visual checks and technician senses such as sight, sound, smell, and touch to identify problems early. The conversation covers preventive maintenance practices, the importance of clean equipment, and how technicians should verify system operation before taking detailed measurements. Gary and John also talk about airflow diagnostics, the role of static pressure testing, and why proper system checks help technicians find real problems instead of guessing. In this conversation, John explains how technicians should approach spring maintenance by first checking that the system is clean and operating correctly. He dis

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with financial expert Ruth King, Founder and CEO of Financially Fit Business and CEO of Business Ventures Corporation to discuss how contractors can build sustainable profitability by focusing on the right financial metrics. Rather than obsessing over traditional profit margins, Ruth explains why net profit per billable hour is the metric that truly matters and how contractors can calculate it to price their services correctly. The conversation explores pricing strategies, managing overhead while scaling, and the financial habits that help businesses grow without losing profitability. Ruth King is a well-known financial expert and business coach specializing in helping contractors understand and improve their financial performance. With nearly four decades of experience analyzing small business financial statements, Ruth has helped thousands of contractors learn how to interpret t

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero sit down with financial expert Ruth King, Founder and CEO of Financially Fit Business and CEO of Business Ventures Corporation. They talk about the importance of understanding your finances as a contractor, especially when you're starting to scale your business. Ruth King is a seasoned business advisor who specializes in helping contractors get their finances in order. With years of experience working with contractors, Ruth has invaluable insights on how to manage cash flow, profitability, and how to structure your books for long-term success.   Expect to Learn: - The key differences between accrual and cash basis accounting, and why accrual is critical for contractors. - How to set up clean books and the importance of having the right bookkeeper. - Why it's essential to separate service and install divisions on your P&L as you scale. - How to handle deferred income from maintenance co

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero talk with Jason Julian, Small Business Owner at Julian Heat & Air, President at J.G.Wholesale LLC and VP of Operations at Affordable Air McCallum LLC. Jason shares his incredible journey from a difficult personal period of recovery and incarceration to becoming a successful HVAC business owner. Through determination and a passion for the HVAC industry, Jason transformed his life and career. This episode dives deep into his story of overcoming challenges, growing his business, and providing valuable advice for aspiring HVAC entrepreneurs.   Expect to Learn - Jason's journey from recovery and incarceration to discovering his passion for HVAC - How thinking like a business owner, even before becoming one, led to success - The importance of taking ownership of your work and learning everything you can about the industry - The challenges Jason faced in starting his own business with limited

In this episode of the HVAC Know It All Podcast, host Gary McCreadie wraps up his chat with Ilija Martinovich, about mental health in the trades and the personal struggles he faced over the past six years. Ilija shares his experience navigating COVID, a bladder cancer diagnosis, divorce, and the pressure of supporting his children while working as an essential tradesperson. He opens up about dark moments, the stigma around men speaking up, and how therapy, exercise, better habits, and honest conversations helped him turn things around. The episode highlights the importance of asking for help, managing stress in healthy ways, finding purpose, and taking small daily steps to regain control and build a better future. Gary and Ilija discuss mental health in the trades and the real struggles many workers face but rarely talk about. Ilija shares his experience during COVID while working as an essential tradesperson, being diagnosed with bladder cancer, and going through a divorce at the same time. They talk about t