Fundamentals of HVACR

Electronically commutated motors are widely described as variable speed motors. In truth, most blower motors used in air conditioning are va...

The National Institute for Occupational Safety and Health ( NIOSH ) is the federal agency responsible for conducting research and making r...

It is common for people who work in the HVACR industry to have very little documentation showing their proficiency. Many have never been to...

This past week I had the pleasure of attending the Alabama Council of Air Conditioning and Refrigeration Educators, or ACARE. The meeting wa...

Several months ago I wrote about the power of smart phones and how they can be used as a service tool. Properly used, phones can save mechan...

One day while I was setting up for a lab I noticed that two of my scales did not agree. What was worse, the discrepancy was significant, eno...

How do you know if your students have actually learned the material? Most teachers verify the results using tests. You check the student’s k...