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need help finding polycarbonate panels for thermosiphon panel

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Posted by Tater on October 9, 2006, 1:10 am
 
had 15 minutes to spare in the big town and stopped by home depo to get
a look-see at some sun tuf panels that someone here used for a
thermosiphon panel. walked around but could not find them, they still
carry them? onyl had 15 min and as being a sunday i could not find a
clerk in time to ask for help....

the big town also has a menards and fleet farm (other midwest box
stores) that might have it, suggestions?


Posted by Gary on October 9, 2006, 1:37 am
 
Tater wrote:

My Home Depot still carries them.
They are corrugated, and 2 ft wide by 8 ft or 12 ft in length, and roughly $
per sqft.
In our HD they are in the area where the metal roofing and concrete materials
are.
Other hardware and lumber yards carry similar panels, sometimes under different
names.
Just be sure that they are 1) polycarbonate (not Acrylic, Plexiglass, or PVC),
and 2) have the UV cut coating on them so they won't yellow.

I will say that having just finished a 2nd set of collectors (water this time)
using the twinwall polycarbonate panels, if I were doing the thermosyphon
collector over again I would probably use the twinwall panels.  They are easier
to work with, easier to mount, available in 4 and 5 ft wide, and (I think) look
a bit nicer.  For cold climates, they probably also make a slightly more
efficient collector.
Cost seems to be around $.5 per sqft. Places that sell materials for making
greenhouses have them.
But, both (corrugated and twinwall) are good products.

--


Gary

www.BuildItSolar.com
gary@BuildItSolar.com
"Build It Yourself" Solar Projects









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Posted by Jeff on October 9, 2006, 4:11 am
 Gary wrote:

   I've looked in a number of Home Depots and Lowes and found them in
all. Lowes currently carries a clone.

   My rule of thumb is to go into the farthest corner of the store and look.

  Gary, what did shipping work out for on the twinwall?

   Cheers,
Jeff




Posted by Gary on October 9, 2006, 4:00 pm
 Total shipping was $90 -- that was on a total of $275 of polycarbonate
twinwall and triplewall (for storm windows).
I'm guessing the the shipping on the 6 4X12 twinwalls for the collector alone
might have been half that?
I actually bought it from EnviroCept at a slightly higher rate per sqft because
there shipping was half what the "cheap" supplier wanted.
But, I would guess you could get it locally in a lot of places?

Gary



www.BuildItSolar.com
gary@BuildItSolar.com
"Build It Yourself" Solar Projects









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