Radiant Precision...
I have come across references to a book called "radiant Precision" by John Siegenthaler.
It's not cheap, but it is available here.
However, I did find a series of Powerpoints that are meant to accompany a CD audio lecture, and they are located here:
Lots of good info, and the price is right.
-AC_Hacker
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I'm not an HVAC technician. In fact, I'm barely even a hacker...
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