NCI Article Library

High-Performance HVAC Resources

CO Monitor Interference

Over the years there have been many reports of CO Alarms and Monitors going off or showing low CO levels on their digital read outs and yet no detectable CO problems were uncovered. The problem here is that Monitors, Alarms, even Analyzers, using electrochemical...

CO and Combustion Diagnostics: Cause Versus Symptom

Jim Davis, Senior Instructor, National Comfort Institute When using the NCI Combustion Diagnostic Reports and Diagnostic Matrix, it is important to recognize the most likely defect/cause of the problem, versus a symptom that it creates. Specifically, a defect/cause is...

“Air Free” CO or “As Measured” Carbon Monoxide?

Jim Davis, Senior Instructor, National Comfort Institute "Air Free" CO or "As Measured" Carbon Monoxide? by Jim Davis The subject of carbon monoxide (CO) Air Free and As Measured is not new, but still causes confusion due to many conflicting protocols. ANSI standard...

CO & Combustion Repair Procedures

Many NCI members have requested that we include repair procedures in our member downloads. October's theme is CO and Combustion testing, so we have included some one-page repair procedures that you'll find helpful this fall while addressing heating system performance....

Closing More Sales The Performance-Based Way

Closing More Sales The Performance-Based Way by David Holt, NCI Director Sales & Service Leadership The rapid pace of technological development means that no manufacturer can maintain a competitive edge for very long. Manufacturers develop a hot new box and,...

ClearWaves Water Softeners and Iron

ClearWave HD Water Conditioner manufactured by Field Controls

Clearwave is the Way to Go

What do water heaters, strainers, shower heads, humidifiers, dishwashers, faucet washers, swamp coolers, shell-in-tube heat exchangers, etc., have in common? SCALE! Why is Clearwave the way to go? Straight from the customers, "After one week the flue temperature of my...

Chuck Worley, Energy Efficient Heating & Air Conditioning, Yorktown, VA

Chuck Worley of Energy Efficient Heating and Cooling in Yorktown, Virginia is National Comfort Team’s Contractor of the month for March, 2005.

Choose Your Venting Options Wisely

There are many applications in the field where conditions don't allow for conventional methods equipment venting, or when existing venting won't work. When you're faced with the decision to add venting assistance, you have two basic options: Draft Inducers, or...

Check Ambient CO

Check Ambient CO While most IAQ problems can irritate you and your customer, Carbon Monoxide can kill. For your safety and to generate CO monitor sales, carry a low-level CO monitor with a digital readout to check CO levels on every service and sales call. Place a CO...