Master HVAC Coach

04/08/2026

https://youtu.be/-HH6CJp5Ok0

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03/21/2026

I recently submitted a proposal to speak at the AEE World Energy Conference & Expo 2026 in Orlando.

The topic is based on something I’ve seen over and over in the field:

How VRF systems actually perform in real buildings over time — where they deliver strong energy savings, and where application or integration can lead to ongoing issues.

Over the past several years, I’ve been involved in VRF projects up to 260 tons across schools, office buildings, and industrial facilities. In some cases, we’ve seen 30–60% energy savings. In others, challenges showed up that weren’t obvious during design.

There’s a big difference between how systems are expected to perform… and how they actually perform once the building is occupied and operating.

My goal is to share practical, field-based insight that helps building owners, engineers, and facility teams make better decisions — especially as electrification and decarbonization continue to move forward.

If you’re working with VRF or evaluating it for your building, I’d be interested in hearing your experience as well.

—
Keith McGowan
Independent HVAC Consultant | HVACR Instructor

02/26/2026

Furnace Limit Switch Problem Found!

02/19/2026

I recently had the opportunity to speak alongside an engineer at the AEE Conference in Atlanta about something I see constantly in the field.

Building owners, churches, and homeowners often spend thousands trying quick fixes for HVAC problems — replacing parts, adjusting controls, or even installing new equipment — yet the comfort issues keep coming back.

After 40+ years diagnosing mechanical systems, I can tell you the truth:

There is no silver bullet.

Real comfort, efficiency, and reliability only happen when the entire system is evaluated — airflow, controls, installation, building conditions, and how everything works together.

In this talk, I explain why chasing single fixes rarely solves long-term HVAC problems and what actually needs to be looked at instead.

If your building, church, or home has ongoing HVAC issues that no one has been able to fully solve, I offer independent system evaluations through Master HVAC Coach.

02/17/2026

https://youtu.be/hvspLRwoWOM

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02/16/2026

Most people don’t think about thier car battery until it won’t start!

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02/15/2026

https://youtu.be/OaEsGg9cPTw

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02/06/2026

Homeowner Said “These Rooms Are Cold?” Why?

02/05/2026

01/19/2026

Welcome to Master HVAC Coach.

This page is dedicated to clear thinking, fundamentals, and aligning technical systems, technicians, and business goals in the HVAC industry.