National Comfort Institute-NCI

Furnace Red Tag Second Opinions

September 11, 2024

There are plenty of reasons to shut down a potentially dangerous furnace, just make sure the facts back up that decision.

An ‘Air’ Balanced Approach to Comfort Problems

David Richardson

July 6, 2024

The duct system plays a pivotal role in customer comfort so HVAC technicians should be familiarized with air balance testing principles to get to the heart of the issues.

How to Adjust Blower Speeds Using Fan Law Two

Assuming high speed for cooling and low speed for heating no longer works with today’s equipment

David Richardson

December 25, 2023

I hope you see the potential for this formula. It will make your life easier and help you predict changes to blower speed settings with more accuracy and reliability.

Static Pressure Readings Offer a Path to Optimal System Performance

Simplifying the mystique behind static pressure can be challenging for contractors

Herb Woerpel

October 18, 2023

A properly executed static pressure test often leads to more comfortable customers with healthier systems.

Customer Service Lessons a Veterinarian Taught Me

Don’t forget to put yourself in the customer’s shoes and see the experience through their eyes

David Richardson

October 4, 2023

It’s easy to forget that what is a regular day on the job for you is a significant event in the life of your customer.

Duct Renovators Are the Missing Link

True efficiency comes from both the installation and the equipment

David Richardson

June 14, 2023

Give your duct renovators purpose and help them understand why their position is valuable.

Tracking and Counteracting Residential HVAC Installation Faults

Preliminary DOE study reveals only 23% of newly installed residential HVAC systems are perfectly charged

Herb Woerpel

June 6, 2023

In the HVACR contracting realm, the quality of the service delivered ultimately dictates the level of success an HVACR contracting obtains.

Four Factors that Influence Duct Renovation

Depending on duct location, duct losses often hide oversizing

David Richardson

April 3, 2023

Correcting a duct system on oversized equipment can be a costly mistake that you’ll regret.

Design Practices for Building and Modifying Duct Systems

HVAC ductwork: Set it and forget it, right?

Matt Jachman

March 28, 2023

Calculated, deliberate ductwork design and construction are major factors in how effectively and efficiently a forced-air HVAC system works.

HVAC Contractors Get Into the Zone

Zoning experts answer questions contractors may hear from customers

Matt Jachman

August 16, 2022

Contractors and HVAC technicians can create a wealth of opportunities by adding residential HVAC zoning to their list of services.

Use Red Flags as Prompts to Measure Static Pressure

David Richardson

July 15, 2022

Implementing company-wide static pressure measurements can be tough. Let’s look at how you can use red flags to improve your static pressure measurement consistency and reduce callbacks.

Provide a Receipt of Your Craftmanship

David Richardson

June 29, 2022

We rarely buy anything without getting a receipt, except in HVAC. Your customers need to know there is a way for them to receive proof that what they paid for is what you delivered.

NCI Summit 2022 Takes a Personal Approach

April 29, 2022

High-performance HVAC contractors took center stage in Scottsdale, Arizona on March 28 as National Comfort Institute's (NCI) 18^th Annual Summit got underway.

Time to Consider Pascals for Static Pressure Measurements

David Richardson

April 15, 2022

Is it time for our industry to consider using pascals for static pressure measurements? What would the transition from inches of water column to pascals look like and how hard would it be?

The Unintended Consequences of Electrification

End users could find themselves with limited choices, higher electric bills, and less comfort

Joanna R. Turpin

April 12, 2022

While proponents claim that electrification is necessary to reduce global warming, critics say that it limits choices for consumers and that some electric technologies may not be as efficient or reliable as their fossil fuel counterparts.