Quote Originally Posted by ga-hvac-tech View Post
Well... it seems to depend which way one learned TESP... I have heard it both ways.
I think we had this discussion somewhere before, I have forgotten the name of the thread though...
I sent you an email of a presentation I put together awhile back on TESP testing.

I would post it here, but I don't post technical info or manuals, in this "OPEN" forum.

If anyone else wants it, send me an email (address is in my profile).


Using a pitot tube in a residential application not only requires you to do math in public, but will require alot of straight duct, before and after the pitot tube, to get an accurate reading.

Even using the smaller static probes can give inaccurate readings because of turbulent airflow.