NCI Article Library

High-Performance HVAC Resources

Flow Hood Calibration Quick Check

From time to time you may question whether your flow hood is reading accurately. Most of the time, when you're using a quality hood like the TSI 8371, you'll find that even though you might be getting a questionable reading, the problem is not the hood, but the outlet...

Flex Duct Suspension Done Right

There's a time-tested method for suspending flexible ducting that's been gaining popularity around the country recently. It's quick, cheap and extremely effective. To multiply the effectiveness of your flex duct suspension, simply take a moment to slip a 12"x 12"...

Five Minute Duct BTU Loss/Gain Procedure

We've all heard our customers describe how their air conditioning system works O.K. in the morning, but doesn't deliver enough cooling in the afternoon. We send out a service tech, he services the unit and reports it's working pretty well. End of story, except our...

Five Airflow Rules You Need to Know

Five Airflow Rules You Need to Know Troubleshooting the airside of an HVAC system can be one of the most frustrating, yet rewarding challenges you'll have in this industry. Airflow is at the core of what we do -- yet it's one of the most misunderstood aspects of an...

Is 2014 Your Year to Shine?

Improving Your Team’s Performance through Better Processes

Introducing the Testo 435

For over a decade NCI has promoted the TSI VelociCalc 8386 as the best air balancing multimeter on the market, and it's still a great test instrument. It has served us well and was the instrument of choice, but is no longer manufactured. We are committed to bringing...

Introducing Performance-Based Selling

This year at HVAC Comfortech, David Richardson of Kentucky-based Richardson's Heating & Air and I gave a seminar about Performance-Based Selling. In just 90 minutes we attempted to cover what should have been a four day class. Actually we're in the process of...

Introducing NCI’s New Service Proposal

How many times in a week is your service technician placed in a situation where he or she finds a problem with a customer's system and when he approaches them with their options they're upset with the unexpected expense? You're stuck explaining options until they...

What is the Relationship between the Internet-of-Things and Performance-Based Contracting?

What is the Relationship between the Internet-of-Things and Performance-Based Contracting? by Mike Weil The secret of change is to focus all of your energy not fighting the old, but on building the new – Socrates One of the things I love about the HVAC Industry is its...

Interior Doors and Intermittent HVAC Comfort Problems

Interior Doors and Intermittent HVAC Comfort Problems by David Richardson This cooling season, HVAC professionals across the country will be called upon to solve intermittent comfort problems they can't recreate. These frustrating and random problems often involve...