The analog manometer, commonly referred to as a Magnehelic ®, is a test instrument that has been around the HVAC industry for decades. Among many technicians in the field, it is still the test ...

Static pressure is one of the most useful measurements HVAC contractors rely on when diagnosing airflow and performance problems. A heating and cooling ...

Benjamin Franklin was one of the most creative minds in American history. To aid him in his creative problem solving, he liked to use a piece of paper with two columns drawn on it. Franklin would ...