Airflow is one of the aspects of hvac that is critical — perhaps especially so in heat pump installations — but it is poorly understood, partially due to the cost of the required tools. This article is meant to help bridge that gap.
One of the prevalent problems that I see in the field is that many of the tools necessary to perform truly top-notch work are prohibitively expensive for the average technician or installer. This discourages field servicers from learning and implementing some of the more fundamental and critical aspects of field service.