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Posted by Jeff on December 11, 2006, 3:55 pm
 
   I hope this isn't a double post. I posted the same message last night
and I haven't seen it  migrate to the news server, So I'm reposting.
Odd... very odd...


I went out to buy some window screen for my quickie solar collector and
have a few questions.

   The first is aluminum or fiberglass. At first it seemed to me that
fiberglass would be OK as the thermal distances are so very short. Now I
  wonder if  there aren't other considerations. Certainly the aluminum
screen is thicker and perhaps denser. I notice for Gary's solar barn
article that he used aluminum.

   The second is that screen seems to be rated by "mesh", anyone got a
clue as to that? Of course, I may have no choice n what is available!

   I'm looking at this:

<URL:
http://www2.acehardwareoutlet.com/ (dsdknxeuczwhuk2ywh4raz55)/ProductDetails.aspx?SKUP198
      />

as I only get short lengths of black aluminum locally.

  I finaly got hold of a hard copy of this months Mother Earth News,
Gary's Solar Barn looks good in print. There's also a quickie review of
some of the commercial collectors. Of note is Morris Dovey's collectors
and the Cansolair. No mention of Bill Kreamers shop...

   Cheers,
Jeff




Posted by Gary on December 12, 2006, 4:23 am
 
Hi Jeff,

As you say, I used the black alum screening.  It was from Lowes -- you might try
them if there is one in the area.  As I recall they had 30 ft rolls and 100 ft
rolls.

I think that you probably want two layers.  I measured 3 side by side bays with
1 layer, 2 layers and 3 layers of screen.  The 2 and 3 layer did about the same
-- both significantly better than the 1 layer.

It seems like separating the two layers by a small space might also be a good
idea -- I did not do this, but it seems like it might work better.

I  think that the fiberglass might work OK as well.

--
I've received some good feedback on the MEN article -- it would sure be nice if
someone were up for trying the integrated in the wall version for a finished
living space.  I think the incremental cost per sqft of this kind of collector
could be very close to zero!

Gary



Jeff wrote:

http://www2.acehardwareoutlet.com/ (dsdknxeuczwhuk2ywh4raz55)/ProductDetails.aspx?SKUP198

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