Static pressure refers to the forces acting on the inner surfaces of HVAC system ductwork. It serves as an indicator of airflow and can be affected by numerous forms of resistance, including the ...

[Editor’s note: When we last visited with lead installer John and his helper Charlie (in the June 11 issue), they had learned how to measure external static pressure on a new system they had just ...

I need to dramatically increase airflow in my Node 304. I'm looking for a very high RPM fan, but more importantly, it needs a lot of static pressure. The reason is it needs to force air in through a ...