Monthly Download

This month we feature a single page, well-illustrated Tech Tip checklist for measuring an economizer’s airflow using an Alnor 801 Rotating Vane Anemometer.

The checklist includes tips on how to properly choose the right settings on the the 801 devise as well as six steps for correctly measuring airflow volume in cubic feet per minute (CFM)

Go to to download this Tech Tip item.

By registering for free on NCI’s website, access this download and many more. Be sure to register today.


David Richards, NCIOvercome Challenges Measuring Air Handler Filter Pressure Drop

David Richardson provides seven steps to successfully overcome these challenges.

He even includes step-by-step instructions to build your own probe so you can successful complete the measurements.

Read his blog here:

Helping the HVAC Industry Become Performance-Based

Dominick Guarino, CEO, National Comfort Institute, Inc.

What does Perfomance-Based Contracting’ and the Book, ‘Blue Ocean Strategy,’ have to do with each other?

In Dominick Guarino’s blog, he defines it and explains and how contractors can use such a strategy with performance to so differentiate themselves, that they have virtually no competition in the marketplace.

Read it here:

Online University

National Comfort Institute, Inc. Online University

Featured this month is the Register and Grille Series of the Online University’s Advanced Technical training. These courses will help you to better understand how to select and measure both supply and return grilles. This series includes:

  • Supply Register and Return Grille Basics – Covers how to properly size them, how they impact air mixing, and more.
  • Traversing Grilles and Registers – Learn to apply the correct traverse formula and how to create a correction factor in the field.
  • How To Select Supply Registers – Demos how to use published engineering data for accurate selection.
  • How to Select Return Grilles – Similar to above.

Read more here:

There’s An App for That …

There are so many mobile apps geared toward HVAC contractors. The question is, which ones are worth your time? Answer: Not all of them for sure.

NCI’s David Richardson has found a number that make great sense for the Performance-Based Contracting’ community and we present those here.

This month’s app is ReportApp from Bacharach, Inc. It reads combustion measurements from Bacharach’s Insight Plus and InTech combustion analyzers (Both analyzers are available in the NCI store) via a QR code. The measurements can then be viewed, saved, and emailed as a PDF.

The app is available in both iOS and Android formats.