Confusion in the use of the terms STATIC PRESSURE and TOTAL PRESSURE is widely prevalent among HVAC Engineers and Contractors. There are serious consequences of not distinguishing clearly between the two, and one example would be that you make troubleshooting more difficult and in some cases impossible.

This article clarifies the distinction between Static Pressure and Total Pressure.

Please read the PDF article below and then return here for your comments.

20131028 Duct System Loses Are Total Pressure Loses