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HVAC School - For Techs, By Techs

HVAC School - For Techs, By Techs

By: Bryan Orr
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About this listen

HVAC School is the ever growing online source for real training topics for technicians in the Air-conditioning, Heating and Ventilation Fields. In the podcast, we will share recorded training, tech ride alongs, share challenging diagnostic scenarios. All to help make the industry, your company, and your truck a better place to be. Career Success Economics Personal Development Personal Success
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Episodes
  • How to Deal w/ Too Much - Short #240
    May 13 2025

    In this short podcast, Bryan talks about how to deal with too much at work and in life. He gives some practical tips to help you when you feel overwhelmed.

    One of the best ways to get ahead is to wake up early, exercise, get sunlight, stay hydrated, eat healthy, and get enough sleep. Taking care of yourself and giving yourself ample opportunities to set your mind and body up for success can ensure that you have the energy to tackle the challenges at work and in other areas of your life.

    When you're in the middle of an overwhelming mix of tasks, it helps to take a small break and take some deep breaths. Some people take smoke breaks. Once you have an opportunity to step back and clear your head, try to document all of the things you need to do. You can use a Google Doc with the help of ChatGPT to lay everything out. Once you have all of your tasks in front of you, pick 3-5 things that must get done today and then use your calendar, silence your notifications, and use all the tools at your disposal to focus on those things.

    Perfectionism and people-pleasing can also get in the way of achieving all of your tasks. You have to be able to accept work that isn't perfect and say no to meetings or unnecessary tasks. You can use tools like Loom to document quick notes instead of holding a meeting. When you can't avoid meetings, try to batch them all at once. Batching, delegating, and automating tasks also come in handy, especially before tasks pile up and spiral out of control.

    Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

    Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

    Subscribe to our podcast on your iPhone or Android.

    Subscribe to our YouTube channel.

    Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android

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    12 mins
  • Delta T Talk w/ JD Kelly
    May 8 2025
    Bryan from HVAC School interviews JD Kelly, known as "student of HVAC" on Instagram, about Delta T measurements in HVAC systems. This episode dives into the fundamentals of Delta T, common misconceptions, and proper measurement techniques. JD explains that Delta T is simply a temperature difference between two points of the same medium, which is often misunderstood in the industry. Many technicians are taught to measure between return grills and supply registers, but this approach can lead to inaccurate readings due to external factors like duct leakage or heat gain from attics. The proper measurement should be taken directly at the equipment to evaluate how the evaporator coil is performing. Humidity plays a significant role in Delta T measurements, which JD discovered when researching the fundamentals. Bryan elaborates on this point, explaining that in high-humidity environments (like Florida), more energy goes toward removing moisture (latent heat) rather than cooling the air (sensible heat), resulting in lower Delta T readings. This is why a newly repaired unit in a humid house might initially show lower readings but improve as the home dries out. The discussion highlights why the common "20-degree Delta T" rule of thumb isn't universally applicable and requires context. Key Topics Covered: Definition of Delta T: Temperature difference between two points of the same mediumDifference between Delta T and TD (temperature difference)Proper probe placement for accurate Delta T readingsImpact of humidity on Delta T measurementsHow regional differences affect expected Delta T valuesRelationship between CFM (airflow) per ton and Delta T readingsCommon mistakes: Adjusting equipment based solely on Delta T readingsChallenges of applying Delta T in heat pump heating modeHow temperature dead spots can affect readingsWhy Delta T readings must be considered alongside other diagnostic testsThe danger of making unnecessary adjustments to HVAC systemsWhy high Delta T isn't always good and low Delta T isn't always bad JD's Delta T tech tip: https://hvacrschool.com/solving-delta-t/ Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool. Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium. Subscribe to our podcast on your iPhone or Android. Subscribe to our YouTube channel. Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android
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    34 mins
  • Fire Sprinklers - Short #239
    May 6 2025

    In this short podcast episode, Bryan talks about fire sprinklers and how to avoid setting them off on job sites.

    Fire sprinklers have an element in the center that expands when exposed to heat (like a TXV sensing bulb) and breaks the glass. When the glass breaks, the fire sprinkler starts pouring out water. In some cases, fire sprinklers are linked to a larger fire suppression system in which several may go off at once, but most of the time, only a single fire sprinkler will go off if bumped or exposed to heat.

    If you're using torches or doing any form of hot work in a closet or other location with a fire sprinkler, make sure to keep torches away from the heat-sensitive bulb or at least cover the sprinkler with a wet rag (and follow your company's guidelines). Blunt force is another possible issue, so we want to avoid hitting the sprinklers with lifts, ladders, or building materials like studs. Keep clearances in mind, and watch out for your colleagues.

    You can get some specialty-built cages to protect the sprinklers, but awareness is one of the best ways to protect fire sprinklers. If possible, make sure signage is posted or that you alert other people in the area about the fire sprinklers.

    If the fire sprinkler does go off, make sure you can quickly reach the person(s) who can access the fire shutoff or direct you to the fire shutoff. While fire sprinklers won't pose much of a personal safety hazard, property damage is a major concern. Training and awareness are the keys to preventing property damage due to fire sprinklers.

    Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

    Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

    Subscribe to our podcast on your iPhone or Android.

    Subscribe to our YouTube channel.

    Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android

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    8 mins

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Learn HVAC on the go

Learning every day, can't get enough of this podcast. The more I learn, the more I realise how much I don't know

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HVAC God

Always a good host and great interviews . i might have watched all your episodes ever.

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