NCI Article Library

High-Performance HVAC Resources

John Cole, Cole’s Air Diagnostics – Ft. Meyers, FL

John Cole, Managing Partner of Cole's Air Diagnostics is September's NCI contractor of the month. The company serves the lower western coast of Florida from Port Charlotte to Naples. When I asked John what part of the industry he specializes in, I heard a grin in his...

JN Electrical Temperature Control, Bowersville, GA

Jason Nikkel, owner of JN Electrical Temperature Control is April's NCI Member of the Month. We informally dubbed Jason as Mr. Congeniality in his own quiet way at last month's NCT Summit in Clearwater, Florida. He seemed to have the ability to develop meaningful...

James A. Wheat & Sons

Jeff Wheat, this months NCI member of the month is one of the family members owning and managing Wheat & Sons, Inc. a nearly $5 million per year plumbing and heating company located in Gaithersburg, Maryland. Jeff manages the technical side of the company with his...

Jack Davis, A-1 Mechanical, Las Vegas, Nevada

Congratulations to Jack Davis, June's NCI Contractor of the month. We've been keeping an eye on Jack and his company since he attended an Air Balancing Seminar in January of this year and have been impressed with his ability to successfully implement Performance Based...

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...

Installing Dampers in Finished Ceilings

There's nothing more frustrating than not being able to balance a system when it was built without balancing dampers, and the plenum and take-offs are behind a finished ceiling. Here's a little trick we use to install dampers on critical ducts in finished basement...

Insight Air, Phoenix, AZ

Rick Rohrbacher is the owner of Insight Air located in Phoenix Arizona. In addition to having his second daughter two weeks ago and moving into their new home two weeks from now, it's been a very busy spring at for Rick and the rest of his company. As we spoke with...

Increase Temperature Measurement Accuracy

When measuring system or equipment temperatures, take your measurements as soon as the system stabilizes. This will allow your performance calculations to resemble (as close as possible), normal operating conditions. In order to keep the system running during testing,...

Humidity Testing Tips

The primary challenge in effectively measuring humidity is accuracy. The two major elements affecting accuracy are the reliability of your test instrument and the measurement technique that you use. Choose a good quality instrument. Many low cost instruments are...

How to Use Fan Performance Data in Your Diagnostics

Almost every day we receive requests for additional generic fan performance tables other than .50" table we published previously. Well, you asked for it, you got it. We've just introduced two new generic tables, one for constant speed blowers with up to .80" ESP and...