Energy, Inc.
1750 Clark Rd
E. Montpelier, VT 05651
802-476-3441 (p)
802-476-5680 (f )
802-272-8933 (c)
On Jul 22, 2009, at 6:15 PM, re-wrenches-requ...@lists.re-
wrenches.org wrote:
Message: 3
Date: Wed, 22 Jul 2009 14:29:29 -0400
From: "Tom Lane"
Subject: [RE-wrenches] tubes v
Glazed collectors: i.e.
evacuated tubes and flat plate collectors - the single one factor that
effects the collectors efficiency is most is the Angle of Incidence of
sunlight to the flat glass or curved glass cylinders. Typically in the best
low iron glass at perfect orientation to the sun - only
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