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Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.
Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.
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Here's a quick summary of the last 5 episodes on HVAC School - For Techs, By Techs.
Hosts
Bryan
Jim
Previous Guests
Jim
Jim has over 15 years of experience running a successful HVAC company in California. He has a deep understanding of the HVAC industry, particularly in the areas of maintenance contracts and their impact on business valuation. Jim emphasizes the importance of consistent service and customer loyalty, and he has implemented innovative marketing strategies to enhance brand awareness.
Jim has over 15 years of experience running a successful HVAC company in California. He has a deep understanding of the HVAC industry, particularly in the areas of maintenance contracts and their impact on business valuation. Jim emphasizes the importance of consistent service and customer loyalty, and he has implemented innovative marketing strategies to enhance brand awareness.
Allison Bailes
Allison Bailes is a building science expert and author known for his work in the field of energy efficiency and indoor air quality. He has extensive experience in ventilation strategies and has contributed to the understanding of how Energy Recovery Ventilators (ERVs) function in modern homes. Bailes is also the author of the book 'A House Needs to Breathe... Or Does It?' and is involved with Energy Vanguard, where he offers courses and resources related to building science and ventilation.
Allison Bailes is a building science expert and author known for his work in the field of energy efficiency and indoor air quality. He has extensive experience in ventilation strategies and has contributed to the understanding of how Energy Recovery Ventilators (ERVs) function in modern homes. Bailes is also the author of the book 'A House Needs to Breathe... Or Does It?' and is involved with Energy Vanguard, where he offers courses and resources related to building science and ventilation.
Chris Hughes
Chris Hughes is an HVAC professional with extensive experience in the field, specializing in modern heating and cooling systems. He has a deep understanding of inverter technology and its complexities, and he is dedicated to educating technicians on best practices for commissioning and servicing these advanced systems. Chris has contributed to the development of resources aimed at improving industry standards and technician training.
Chris Hughes is an HVAC professional with extensive experience in the field, specializing in modern heating and cooling systems. He has a deep understanding of inverter technology and its complexities, and he is dedicated to educating technicians on best practices for commissioning and servicing these advanced systems. Chris has contributed to the development of resources aimed at improving industry standards and technician training.
Adam Mufich
Adam Mufich is an HVAC technician and educator known for his expertise in inverter-based HVAC systems. He focuses on the challenges technicians face during the commissioning process and advocates for better documentation and support from manufacturers. Adam collaborates with industry professionals to create comprehensive guides that help standardize commissioning practices across different HVAC brands.
Adam Mufich is an HVAC technician and educator known for his expertise in inverter-based HVAC systems. He focuses on the challenges technicians face during the commissioning process and advocates for better documentation and support from manufacturers. Adam collaborates with industry professionals to create comprehensive guides that help standardize commissioning practices across different HVAC brands.
Topics Discussed
HVAC business growth
maintenance contracts
consistent service
branding
Top Of Mind Awareness
TOMA
training opportunities
company valuation
customer loyalty
Sensi thermostats
oversized evaporator coils
saturated suction temperature
refrigerant flow rates
airflow
cooling
dehumidification
heat transfer
laminar flow
turbulent flow
Energy Recovery Ventilators
ERVs
ventilation
indoor air quality
energy efficiency
moisture energy recovery
over-ventilation
humidity management
filtration
climate zones
surge protectors
ICM 493
daisy-chaining
MOVs
whole-home surge protection
DITEK Kool Guard 2
voltage monitor
inverter equipment
commissioning challenges
HVAC systems
single-stage systems
two-stage systems
temperature requirements
refrigerant charging
airflow measurement
manufacturer documentation
standardized procedures
HVAC School is an online source for content related to technician training in the fields of Air Conditioning, Heating, Ventilation and Refrigeration. We focus on real, applicable training for techs and contractors as well as general education resource for the industry.
Here's the recent few episodes on HVAC School - For Techs, By Techs.
0:0044:56
Growing your HVAC Business the Smart Way w/ Copeland
Hosts
Hosts of this podcast episode
BryanJim
Guests
Guests of this podcast episode
Jim
Keywords
Keywords of this podcast episode
HVAC business growthmaintenance contractsconsistent servicebrandingTop Of Mind AwarenessTOMAtraining opportunitiescompany valuationcustomer loyaltySensi thermostats
In this episode of the HVAC School podcast, Bryan and Jim discuss strategies for growing an HVAC business, focusing on the importance of maintenance contracts, consistent service, and effective branding. Drawing from Jim's 15 years of experience running a successful HVAC company in California, they explore how maintenance contracts not only provide consistent revenue but also create valuable training opportunities for technicians.
The conversation emphasizes that maintenance contracts are fundamental to building company value. Jim shares that when he sold his business, the number of maintenance contracts was a key valuation metric. These contracts tie customers to your company, provide consistent work during shoulder seasons, and offer technicians crucial repetitive practice with equipment. Bryan adds that maintenance provides technicians with opportunities to observe normal equipment operation repeatedly, which builds troubleshooting skills through pattern recognition.
Both hosts stress the importance of consistency in growing a business. They note that large, successful HVAC companies aren't always the most technically excellent, but they deliver consistent service that customers can rely on. Jim introduces the marketing concept of "TOMA" (Top Of Mind Awareness), sharing how he used branded coffee bags as thank-you gifts to keep his company in customers' minds even after service calls were completed. The discussion concludes with an examination of White Rogers' contractor branding program, which allows HVAC companies to put their name and logo on thermostats, creating another touchpoint for customer awareness.
Key topics covered:
How maintenance contracts increase company valuation and create customer loyalty
Using maintenance as a training ground for developing technician skills
The importance of consistent processes and documentation when scaling a business
Creating "Top Of Mind Awareness" (TOMA) with customers through strategic touchpoints
White Rogers' contractor branding program for thermostats
Benefits of Sensi thermostats and their app features, including multiple temperature sensors
Different pricing strategies for customers with and without maintenance contracts
The importance of documenting extended warranty information on invoices
How service departments can weather economic downturns better than installation-focused businesses
In this episode of the HVAC School podcast, Bryan and Jim discuss strategies for growing an HVAC business, focusing on the importance of maintenance contracts, consistent service, and effective branding. Drawing from Jim's 15 years of experience running a successful HVAC company in California, they explore how maintenance contracts not only provide consistent revenue but also create valuable training opportunities for technicians.
The conversation emphasizes that maintenance contracts are fundamental to building company value. Jim shares that when he sold his business, the number of maintenance contracts was a key valuation metric. These contracts tie customers to your company, provide consistent work during shoulder seasons, and offer technicians crucial repetitive practice with equipment. Bryan adds that maintenance provides technicians with opportunities to observe normal equipment operation repeatedly, which builds troubleshooting skills through pattern recognition.
Both hosts stress the importance of consistency in growing a business. They note that large, successful HVAC companies aren't always the most technically excellent, but they deliver consistent service that customers can rely on. Jim introduces the marketing concept of "TOMA" (Top Of Mind Awareness), sharing how he used branded coffee bags as thank-you gifts to keep his company in customers' minds even after service calls were completed. The discussion concludes with an examination of White Rogers' contractor branding program, which allows HVAC companies to put their name and logo on thermostats, creating another touchpoint for customer awareness.
Key topics covered:
How maintenance contracts increase company valuation and create customer loyalty
Using maintenance as a training ground for developing technician skills
The importance of consistent processes and documentation when scaling a business
Creating "Top Of Mind Awareness" (TOMA) with customers through strategic touchpoints
White Rogers' contractor branding program for thermostats
Benefits of Sensi thermostats and their app features, including multiple temperature sensors
Different pricing strategies for customers with and without maintenance contracts
The importance of documenting extended warranty information on invoices
How service departments can weather economic downturns better than installation-focused businesses
In this short podcast episode, Bryan answers a listener-submitted question about oversized evaporator coils, particularly when they're half a ton or a full ton larger than the condenser.
The expanded performance data contains the information that'll tell you whether the coil is right for the system. However, when it comes to the specific issue of oversizing, there is a common misconception that coil size affects the saturated suction temperature. The truth is that they're not related; you could fully insulate different-sized coils and move the same amount of refrigerant, but they will behave similarly.
The saturated suction temperature (suction pressure, evap temperature) is driven by the heat entering the system. Coils are designed to handle refrigerant flow rates and airflows, so having a lower airflow over a large coil allows for greater cooling due to the bigger surface area, lower bypass factor, and dwell time. When more heat enters the evaporator coil, the saturated suction temperature increases, but some of that heat enters as latent heat and helps with dehumidification. However, a larger coil also takes longer to get colder, and the superheat settings become more important.
You have to be careful with lower face velocities across the evaporator coil, as laminar flow isn't as good at transferring heat as turbulent flow. That is one of the limitations of using a larger coil with lower airflow. If the expanded performance data has a rated match for a larger coil, then that same data will also contain information about the required airflow. Testing in and testing out is also important.
In this short podcast episode, Bryan answers a listener-submitted question about oversized evaporator coils, particularly when they're half a ton or a full ton larger than the condenser.
The expanded performance data contains the information that'll tell you whether the coil is right for the system. However, when it comes to the specific issue of oversizing, there is a common misconception that coil size affects the saturated suction temperature. The truth is that they're not related; you could fully insulate different-sized coils and move the same amount of refrigerant, but they will behave similarly.
The saturated suction temperature (suction pressure, evap temperature) is driven by the heat entering the system. Coils are designed to handle refrigerant flow rates and airflows, so having a lower airflow over a large coil allows for greater cooling due to the bigger surface area, lower bypass factor, and dwell time. When more heat enters the evaporator coil, the saturated suction temperature increases, but some of that heat enters as latent heat and helps with dehumidification. However, a larger coil also takes longer to get colder, and the superheat settings become more important.
You have to be careful with lower face velocities across the evaporator coil, as laminar flow isn't as good at transferring heat as turbulent flow. That is one of the limitations of using a larger coil with lower airflow. If the expanded performance data has a rated match for a larger coil, then that same data will also contain information about the required airflow. Testing in and testing out is also important.
Energy Recovery VentilatorsERVsventilationindoor air qualityenergy efficiencymoisture energy recoveryover-ventilationhumidity managementfiltrationclimate zones
In this episode of the HVAC School podcast, host Bryan sits down with building science expert Allison Bailes to dive deep into the world of Energy Recovery Ventilators (ERVs). The conversation explores the critical role of ventilation in modern homes, highlighting how ERVs have become an essential component of maintaining indoor air quality and energy efficiency. Bailes breaks down the technical nuances of ERVs, explaining how these systems not only bring fresh air into a home but do so while recovering both temperature and moisture energy.
The discussion goes beyond simply explaining what an ERV is, delving into the practical considerations of ventilation strategies. Bailes shares personal experiences, including challenges he faced with over-ventilation in his own home, which led to extremely dry indoor conditions. The podcast explores the complex balance of bringing outdoor air inside while managing humidity, temperature, and air quality. Listeners gain insights into why simply bringing in outdoor air isn't always the best solution, especially in climates with extreme humidity or air quality challenges.
Throughout the episode, Bailes and Bryan emphasize the importance of thoughtful ventilation design. They discuss the evolution of home construction, noting how increasingly airtight buildings have made proper ventilation more crucial than ever. The conversation touches on key considerations for selecting and implementing ERVs, including motor efficiency, boost capabilities, filtration, and the impact of outdoor air conditions. The experts provide practical advice for contractors, technicians, and homeowners looking to improve their understanding of indoor air management.
Key Topics Covered:
The difference between Energy Recovery Ventilators (ERVs) and Heat Recovery Ventilators (HRVs)
Moisture transfer and vapor permeability in ventilation systems
Balanced ventilation strategies and their importance
Challenges of over-ventilation and indoor air quality
Filtration considerations for ERV systems
Impacts of outdoor air quality on home ventilation
Strategies for different climate zones
The role of ERVs in managing indoor humidity and temperature
Resources Mentioned:
Allison Bailes' book: "A House Needs to Breathe... Or Does It?"
Upcoming online ventilation course from Energy Vanguard (expected May 2025)
In this episode of the HVAC School podcast, host Bryan sits down with building science expert Allison Bailes to dive deep into the world of Energy Recovery Ventilators (ERVs). The conversation explores the critical role of ventilation in modern homes, highlighting how ERVs have become an essential component of maintaining indoor air quality and energy efficiency. Bailes breaks down the technical nuances of ERVs, explaining how these systems not only bring fresh air into a home but do so while recovering both temperature and moisture energy.
The discussion goes beyond simply explaining what an ERV is, delving into the practical considerations of ventilation strategies. Bailes shares personal experiences, including challenges he faced with over-ventilation in his own home, which led to extremely dry indoor conditions. The podcast explores the complex balance of bringing outdoor air inside while managing humidity, temperature, and air quality. Listeners gain insights into why simply bringing in outdoor air isn't always the best solution, especially in climates with extreme humidity or air quality challenges.
Throughout the episode, Bailes and Bryan emphasize the importance of thoughtful ventilation design. They discuss the evolution of home construction, noting how increasingly airtight buildings have made proper ventilation more crucial than ever. The conversation touches on key considerations for selecting and implementing ERVs, including motor efficiency, boost capabilities, filtration, and the impact of outdoor air conditions. The experts provide practical advice for contractors, technicians, and homeowners looking to improve their understanding of indoor air management.
Key Topics Covered:
The difference between Energy Recovery Ventilators (ERVs) and Heat Recovery Ventilators (HRVs)
Moisture transfer and vapor permeability in ventilation systems
Balanced ventilation strategies and their importance
Challenges of over-ventilation and indoor air quality
Filtration considerations for ERV systems
Impacts of outdoor air quality on home ventilation
Strategies for different climate zones
The role of ERVs in managing indoor humidity and temperature
Resources Mentioned:
Allison Bailes' book: "A House Needs to Breathe... Or Does It?"
Upcoming online ventilation course from Energy Vanguard (expected May 2025)
surge protectorsICM 493daisy-chainingMOVswhole-home surge protectionDITEK Kool Guard 2voltage monitor
In this short podcast episode, Bryan answers a listener-submitted question asking whether you can use another surge protector at the disconnect panel with an ICM 493 already in place.
Using multiple surge protectors in the configuration described does NOT count as daisy-chaining. Surge protectors with MOVs (metal oxide varistors) shunt current from high voltage to ground by reducing their resistance. MOVs are sacrificial, so they wear out over time. Surge protectors don't last forever, so installing multiple is a fine idea.
You can have whole-home surge protection with additional surge protectors positioned at the appliances/electronics. While it can be done and doesn't hurt anything, it's not the most cost-effective solution.
When you install a surge protector, wire it in parallel with the circuit to ground. It should be wired properly with the shortest possible path to ground. In any case, many surge protectors won't hold up against direct lightning strikes, but they will protect the equipment from power surges after power comes back on or constant overvoltage.
Our company, Kalos Services, now uses DITEK's Kool Guard 2 as our surge protector and voltage monitor of choice. They also provide warranties for their products, which have come in handy for customers.
In this short podcast episode, Bryan answers a listener-submitted question asking whether you can use another surge protector at the disconnect panel with an ICM 493 already in place.
Using multiple surge protectors in the configuration described does NOT count as daisy-chaining. Surge protectors with MOVs (metal oxide varistors) shunt current from high voltage to ground by reducing their resistance. MOVs are sacrificial, so they wear out over time. Surge protectors don't last forever, so installing multiple is a fine idea.
You can have whole-home surge protection with additional surge protectors positioned at the appliances/electronics. While it can be done and doesn't hurt anything, it's not the most cost-effective solution.
When you install a surge protector, wire it in parallel with the circuit to ground. It should be wired properly with the shortest possible path to ground. In any case, many surge protectors won't hold up against direct lightning strikes, but they will protect the equipment from power surges after power comes back on or constant overvoltage.
Our company, Kalos Services, now uses DITEK's Kool Guard 2 as our surge protector and voltage monitor of choice. They also provide warranties for their products, which have come in handy for customers.
In this podcast episode, HVAC professionals Chris Hughes and Adam Mufich discuss the intricate challenges technicians face when commissioning modern inverter-based heating and cooling systems. Unlike traditional single-stage or two-stage HVAC equipment, inverter systems introduce a new level of complexity that can leave even experienced technicians feeling uncertain about proper installation and startup procedures.
The presentation highlights a fundamental shift in how HVAC systems operate, moving from straightforward single-stage systems to sophisticated inverter-based technologies that modulate compressor, fan, and refrigerant flow dynamically. This technological evolution creates significant challenges for technicians, who previously could rely on simple, consistent commissioning processes. The speakers emphasize that modern inverter systems require a much more nuanced approach, with specific temperature ranges, wait times, and verification methods that are not always clearly documented in manufacturer manuals.
Recognizing the industry-wide need for clarity, Chris and Adam have developed a comprehensive spreadsheet resource that consolidates commissioning information across multiple HVAC brands. Their goal is to empower technicians by providing accessible, standardized guidance for working with these complex systems. By sharing their research and encouraging collaboration, they aim to address what they see as a critical gap in manufacturer support and technical documentation.
The podcast serves as both an educational resource and a call to action for HVAC professionals and manufacturers alike. Chris and Adam argue that the industry needs more transparency, better documentation, and a collective effort to standardize inverter system commissioning practices. Their work represents a significant step towards demystifying these advanced HVAC technologies and ensuring that technicians can confidently and effectively install and service modern heating and cooling equipment.
Key Topics Covered:
Differences between single-stage, two-stage, and inverter HVAC systems
Commissioning challenges with modern inverter technologies
Critical factors in proper system startup, including:
Outdoor and indoor temperature requirements
Wait times for system stabilization
Refrigerant charging methods
Airflow measurement and verification
The importance of precise refrigerant charging (superheat and subcooling)
Challenges with manufacturer documentation and technical support
The need for standardized commissioning procedures across HVAC brands
Strategies for verifying system performance during commissioning
The speakers' collaborative effort to create a comprehensive inverter system commissioning guide
In this podcast episode, HVAC professionals Chris Hughes and Adam Mufich discuss the intricate challenges technicians face when commissioning modern inverter-based heating and cooling systems. Unlike traditional single-stage or two-stage HVAC equipment, inverter systems introduce a new level of complexity that can leave even experienced technicians feeling uncertain about proper installation and startup procedures.
The presentation highlights a fundamental shift in how HVAC systems operate, moving from straightforward single-stage systems to sophisticated inverter-based technologies that modulate compressor, fan, and refrigerant flow dynamically. This technological evolution creates significant challenges for technicians, who previously could rely on simple, consistent commissioning processes. The speakers emphasize that modern inverter systems require a much more nuanced approach, with specific temperature ranges, wait times, and verification methods that are not always clearly documented in manufacturer manuals.
Recognizing the industry-wide need for clarity, Chris and Adam have developed a comprehensive spreadsheet resource that consolidates commissioning information across multiple HVAC brands. Their goal is to empower technicians by providing accessible, standardized guidance for working with these complex systems. By sharing their research and encouraging collaboration, they aim to address what they see as a critical gap in manufacturer support and technical documentation.
The podcast serves as both an educational resource and a call to action for HVAC professionals and manufacturers alike. Chris and Adam argue that the industry needs more transparency, better documentation, and a collective effort to standardize inverter system commissioning practices. Their work represents a significant step towards demystifying these advanced HVAC technologies and ensuring that technicians can confidently and effectively install and service modern heating and cooling equipment.
Key Topics Covered:
Differences between single-stage, two-stage, and inverter HVAC systems
Commissioning challenges with modern inverter technologies
Critical factors in proper system startup, including:
Outdoor and indoor temperature requirements
Wait times for system stabilization
Refrigerant charging methods
Airflow measurement and verification
The importance of precise refrigerant charging (superheat and subcooling)
Challenges with manufacturer documentation and technical support
The need for standardized commissioning procedures across HVAC brands
Strategies for verifying system performance during commissioning
The speakers' collaborative effort to create a comprehensive inverter system commissioning guide
