HVAC Techs Are Skipping Critical Tests That Cause Dangerous System Failures with Tyler Nelson Part 2

In this episode of the HVAC Know It All Podcast, host Gary McCreadie wraps up his chat with Tyler Nelson, Master HVACR, Business Development Manager, Sales Manager - Americas, Global Trainer, at Sauermann Group, about Combustion Analysis and why proper testing is critical for safe and efficient equipment operation. Tyler explains how to correctly use a Combustion Analyzer, the importance of testing at light off, steady state, and shutdown, and why commissioning should always be done. They discuss stack temperature, efficiency readings, manifold pressure adjustments, and how measured data helps technicians make better decisions and communicate clearly with customers. The episode highlights the value of understanding the why behind the readings and using data to improve performance and accountability in the field.

Gary and Tyler discuss combustion analysis and why proper testing is essential for safe and efficient system operation. They talk about using a combustion analyzer the right way, including finding the correct test location and checking readings at light off, steady state, and shutdown. Tyler explains why commissioning is often overlooked and why equipment must be adjusted to match the environment it is installed in. The conversation also covers stack temperature, manifold pressure settings, and how efficiency readings reflect fuel use, not true system output. They finish by highlighting how measured data builds trust with customers and helps technicians make clear, confident decisions in the field.

Expect to Learn:

• How to properly use a combustion analyzer and understand what the readings mean.

• Why testing at light off, steady state, and shutdown helps catch hidden problems.

• How stack temperature and manifold pressure affect efficiency and performance.

• Why commissioning equipment is critical and often overlooked in the field.

• How measured data builds trust with customers and supports clear diagnostic decisions.

Episode Highlights:

[00:00] - Intro to Tyler Nelson in Part 02

[01:02] - Why open-mindedness matters in HVAC

[02:23] - Mastering the combustion analyzer: Usage vs. understanding

[05:41] - Real case study: The importance of day-one commissioning data

[10:06] - Manufacturer's confession: Why commissioning is non-negotiable

[13:20] - Fine-tuning equipment: Going beyond the manual's specs

[16:16] - Behind the book & what's next for Tyler

[18:38] - Wrap-up & where to find the book

This Episode is Kindly Sponsored by:

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

SupplyHouse: https://www.supplyhouse.com/tm
Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Tyler Nelson, Master HVACR on:

LinkedIn: https://www.linkedin.com/in/tyler-nelson-master-hvacr-9a8a981b/

Sauermann Group: https://www.linkedin.com/company/sauermann-group/

Get Tyler Nelson's Book:

Tyler's book Combustion Analysis: The Essentials is available now. If you want a practical, field-ready guide to combustion testing and diagnostics, grab your copy here:
👉https://tyty5.gumroad.com/l/zfsmxo

Follow the Host:

LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/

Website: https://www.hvacknowitall.com

Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

Instagram: https://www.instagram.com/hvacknowitall1/