Written by HVAC Professionals for HVAC Professionals

TEC TrueFlow® Grid Forecasting

I’m always looking for tools that streamline High-Performance HVAC™ diagnostics and boost confidence in system recommendations. That’s why I’ve found The Energy Conservatory (TEC) TrueFlow Grid, with forecasting capabilities, to be a valuable asset in my work.

Forecasting, in this context, is all about using fan laws to predict how changes to a system — like upgrading equipment, modifying ductwork, or replacing filters — will impact static pressure and overall performance.

It allows me to model “what if” scenarios before picking up a wrench. With this tool, I can see how the system will respond to those changes and ensure the performance gains we promise will actually be realized.

Intuitive Forecasting Interface

What I appreciate most is how it simplifies a complex process. Fan Law 2 can be intimidating — it’s math-heavy and not intuitive for most techs in the field.

But this tool turns that algebra into an intuitive interface using sliders and real-time feedback. It demystifies pressure drop and airflow changes, making forecasting accessible, even for those newer to system optimization.

Of course, having a basic understanding of pressure drops is essential to use this instrument effectively. That’s where foundational training like National Comfort Institute’s Airflow Testing and Diagnostics and Duct System Optimization courses come in.

But once that’s in place, the TrueFlow Grid makes forecasting incredibly easy to apply in the field.

At the end of the day, this is about trust — being able to tell a homeowner, “Here’s what we’re recommending, and here’s why it will work.”

Forecasting gives us that confidence. And in a competitive, performance-driven market, that’s a game changer.

For an informative video on forecasting with the Trueflow Grid, go to ncilink.com/TFG-Fcasting.

— by Adam Mufich, NCI Instructor