AirComp Qs

[Richard Beels <beels@technologist.com>]

No, I'm not going to ask which one to get (DeVilbiss 6HP, 60gal) or what to 
use for the plumbing (Cu, Type L)...

I want to know about this "radiator" thingie you all keep talking 
about.  And about muffling the sound.

To muffle the sound, some have said to muffle the intake.  What's the best 
"muffler" to use?  What about the exhaust?

Now, what's the radiator thingie about?  I assume cooling the air but, tell 
me more.....

Cheers!