HVAC School - For Techs, By Techs

In today's short live podcast, Bryan discusses the importance of context in education and the challenge presented by information.

When we learn, we do ourselves a disservice by searching for informat…

In this episode, Jordan Cummings comes on the podcast to review application-based system selection considerations for VRF/VRV systems.

A VRF/VRV system works a bit like a hydronics system, but it pr…

In today's short podcast episode, we talk about specific gravity, also known as relative density. We explain why it matters to technicians.

When we talk about specific gravity, we're actually talking…

In this episode, we speak with Embraco about R290 (Propane) refrigerant, hydrocarbons, and what you need to know about them. Embraco is primarily focused on compressors and is involved in the residen…

We talk about measuring tricky amperage on a blower and condensing fan motor. We also cover why you may be measuring inaccurately, resulting in a misdiagnosis.

When measuring amperage on a PSC blower…

In this service manual talk-through episode, Eric Mele helps us discuss the Heatcraft Beacon 2 refrigeration system. We talk about what it can do and what it entails.

The Heatcraft Beacon 2 is a refr…

This short podcast episode covers the why and the how of low ambient cooling and refrigeration.

Low ambient cooling refers to operating A/C equipment during low outdoor ambient conditions. Typically,…

In today's podcast, I talk to John Oaks about his experience as a VRF tech in the field, including branch boxes and two-pipe vs. three-pipe technology. John primarily works on the troubleshooting and…

This is a voice-over audio presentation of the article of the same title on the HVACRschool.com website ("The Trade Skills Gap: A Manifesto).

The manifesto discusses the value of technicians and the …

Jason Obrzut comes on the podcast and talks us through his furnace sequence of operation training: "Take It Slow, It's Gonna Blow!"

There are 6 main steps in Jason's furnace sequence of operation tra…

In this short podcast episode, we talk through stack effect. We explain what it is and what sorts of comfort issues it can cause in a home.

Most of us understand that hot air rises even though heat i…

Jim Bergmann gives us a year-end review of all that is happening at MeasureQuick and his predictions for the future of app-based diagnosis. He also covers what's been going on with Redfish, BluFlame,…

What is the difference between accuracy, precision, and resolution? In today's short podcast, Jim Bergmann explains the differences and why they matter.

People commonly confuse accuracy and precision…

John guides us through all aspects of ventilation and system design. He gives us a review of point ventilation, ASHRAE 62.2, whole-home strategies, and much more.

Nowadays, construction protocols ins…

Bill and Bryan discuss gas and combustion tools. These tools include manometers, combustible gas detectors, personal CO detectors, draft gauges, and combustion analyzers.

Manometers measure gas press…

In this short podcast episode, Bryan speed-talks through all the basics of heat pumps and how they function.

Heat pumps are not physical pumps or components on an A/C system. A heat pump is an HVAC u…

Jason from ESCO and Cengage comes on to talk about the varying landscape of EPA 608 regulations with what you need to know for now (circa 2018).

The EPA has proposed to roll back some regulations reg…

In this short podcast episode, Bryan shares his experience as an entrepreneur and his tips for anyone who wants to run and grow a successful business.

When growing a business, the best thing you can …

In our first ever ask-me-anything (AMA) podcast, we talk about the trade as a whole and answer random questions about Kalos and myself.

Some people ask me if I'd encourage my children to get into HVA…

When we replace equipment, we sometimes wonder if the old unit was undersized. Here are some things to consider before replacing that old A/C with a bigger one.

When we do load calculations, we figur…