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Drain Trap Depth and Negative Pressure
Observations from the Field: Insights Gained from HVAC Ride-Alongs
8 Reasons Why Teamwork is Important in HVAC
The Limitations of Diagnostic Charts
Wet-Bulb and Dry-Bulb Temps in HVAC Service
Equipment Sizing and Airflow in Different Markets
Short Cycling
Universal Condenser Fan Wiring Options
Combustion Testing Doesn’t Stop in the Summer
Roman SpeakPipe VRF – Short #235
10 Things I’ve Learned In the Last 10 Years
R290 as a Drop In? – Short #234
Preventing Slugging & Flooding w/ Copeland
What is the Best Brand? – Short #233
Helping Small Owners Succeed w/ WorkHero
MeasureQuick Talks with Bert
Leak Detection Tech w/ Inficon
Live from AHR with Kalos Team Dre & Elliot
#hvac
Tech Tips:
We recently received a Speakpipe question for the podcast about a common nuisance call on straight-cool A/C units and heat pumps. The systems, often retrofit units, were backing water up into the secondary drain pan and overflowing it. This issue isn’t happening on furnaces, which are positively pressurized, which means we have to take a […]
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When we started Conduit, one thing that was incredibly important to us was that we constantly took lessons from the field to make sure we’re building the best product and process. HVAC Contractors around the country graciously let us ride in their trucks with them to visit customers. Our goal was to better understand the […]
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This tech tip was inspired by a Facebook post by Jason Julian in the HVAC School Group. Jason is the owner of his own HVAC business, Julian Heat & Air, and was part of the 2024 HVACR Training Symposium's Small Business Roundtable. Thanks, Jason! HVAC work is NOT easy. Some installs (and even service calls) […]
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This tech tip is based on the podcast with Joey Henderson, “Using Refrigerant Troubleshooting Charts w/ Joey Henderson.” You can listen to that podcast HERE. The HVAC trade is very much a visual one; I wouldn’t recommend doing a drinking game where you take a shot each time you read “Do a thorough visual inspection” […]
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This tech tip is based on a segment of a recent podcast episode with Joey Henderson, “Using Refrigerant Troubleshooting Charts w/ Joey Henderson.” You can listen to that podcast HERE. Credit: efficientcomfort.net If you’ve seen a superheat charging chart (like the one above), you’ll notice that you need to take the dry-bulb (DB) temperature entering […]
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This tech tip was heavily informed by Ed Janowiak’s past symposium presentations. You can watch his presentation about setting proper airflow HERE. You can also now purchase your tickets for the 6th Annual HVACR Training Symposium HERE. HVAC School was founded by a Floridian—representing Climate Zone 2, to be exact. So, it’s no surprise that […]
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A friend of mine was telling me that a utility had the idea that they could reduce energy consumption by turning HVAC equipment on and off rapidly during times of high load. In their minds, wouldn't it be better to spread out the off time rather than keeping the system off for longer periods and […]
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Assessing the Situation It is fairly common for a service technician to come across a failed condenser fan motor in the field. It doesn’t matter if we are talking about really old or fairly new equipment—condenser fan motors sometimes fail. The issue is deciding whether to use an OEM (Original Equipment Manufacturer) or a universal […]
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This tech tip was written by Casey Contreras. Casey is a field coach and instructor for the National Comfort Institute (NCI). Thanks, Casey! As HVAC technicians, our careers often focus on either cooling or heating. Because of this split view, we typically ignore gas-fired appliances during the cooling season. There are dangers lurking in any […]
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Videos:
Podcasts:
In this short podcast episode, Roman Baugh takes over the HVAC School podcast to answer a listener-submitted question about VRF (or VRV) system evacuation. Evacuation is a critical step of making repairs on VRF systems, which are very diverse and versatile but require a high level of understanding. VRF systems have multiple indoor units […]
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This podcast episode is of Bryan's session from the HVAC School Symposium, “10 Things I've Learned in the Last 10 Years.” Delivered as HVAC School approaches its 10-year milestone and Kalos hits 20 years, Bryan blends technical know-how with personal stories, revealing how his “expertise” is a product of constant learning—often from the very […]
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In this short podcast episode, Bryan answers a listener-submitted question about using R-290 as a drop-in refrigerant for R-22 systems. It is NOT safe to use R-290 as a drop-in, but there are some similar properties between the two and some interesting thought experiments within this topic. R-290 is propane, a hydrocarbon that belongs […]
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In this episode of the HVAC School Podcast, host Bryan welcomes Jeff from Copeland to discuss the critical topic of flooding and slugging in compressors. Jeff, calling in from frigid Minnesota (at negative 19°F), explains the differences between these harmful conditions and how they can damage compressor systems. The conversation begins by differentiating between […]
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In this short podcast episode, Bryan answers a listener-submitted question: what is the best brand of equipment for residential new construction? A lot of people have their own personal preferences when it comes to brands, whether that's with equipment, tools, or even cars. However, when it comes to HVAC equipment, there are a lot […]
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Join Bryan Orr and Furman Haynes from WorkHero for a great discussion about how to keep HVAC local and help more small owners succeed. Live from AHR Expo 2025, we get to hear from one of the founders of an exciting new company that is offering expert office management that small HVAC business owners […]
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In this livestream MeasureQuick Talks with Bert. This is an impromptu Talk with industry leaders, including Shelby Breger from Conduit and Joe Medosch from MeasureQuick, about how mobile technology is revolutionizing HVAC diagnostics and training. Featuring special guests discussing how modern tools like MeasureQuick and other diagnostic apps are making it easier for technicians […]
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Join us as we sit down with Nick from Inficon at AHR Expo 2025 to discuss the latest innovations in Leak Detection Tech. We explore the evolution from halide torches to modern infrared sensors, and get an exclusive look at their newest product – the D-TEK Pro. Key topics covered: The transition from heated […]
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Join Bryan Orr as he goes Live from the AHR Expo 2025 at the Orange County Convention Center with Kalos Services team members Dre and Elliot! They share their first impressions of the massive HVAC industry expo, discuss interesting booth displays, and chat about the latest tools and technology they've spotted on the show […]
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