[Nubmian] wrote in to share his experiments with measuring airflow in an HVAC system. His first video deals with using with ultrasonic sensors. He found an interesting white paper that described ...

Everyone is familiar with pinwheels, and few of us haven’t crafted one from a square of paper, a stick, and a pin. Pinwheels are pretty optimized from a design standpoint, and are so cheap and easy to ...

HVAC airflow problems can make or break a duct system design. After all, the cornerstone of the heating and cooling industry is comfort. Without proper HVAC airflow, comfort goes out the window — pun ...