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solar thermal payback? - Page 7

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Posted by schooner on September 27, 2006, 8:11 pm
The only supplier I know is in Dartmouth NS as we get the Solkote paint
there for our hot air panels.  You might give them a try:

You can see some info on the air panels we been making/using here:

Posted by Jeff on September 27, 2006, 8:28 pm
schooner wrote:


   Nice looking panels, but I couldn't help noticing the $000 CDN
figure. Is that a misprint or can you give a rough cost breakdown?


Posted by schooner on September 27, 2006, 8:56 pm
 $00-1000CDN is the total cost of materials.  These are made from all new
material and use selective paint as well.  That also includes the fan unit,
electronic thermostat, aluminum frame, etc.  They certainly aren't cheap but
we wanted production quality panels to mount on our homes.  You could use
the same general concept and go with a plywood frame, flat black paint, etc
to save on the cost.

I'll try and see if we can list the item cost on the site if I get time.


Posted by darrylvan on September 27, 2006, 10:02 pm
 Jeff wrote:

That's why i'm interested in trying to find a cheaper design :)

If i'm out $000 on materials alone the 'payback' is out quite a bit

If a unit like that can be brought down with cheaper materials and still
be in the ballpark in terms of the efficiency they seem to be getting it
would be a little more palatable.


Posted by schooner on September 27, 2006, 10:12 pm
 Your cheapest bet then is probably go with a flat plate collector with a
wooden frame.  A snap disc controller can be had for far less than the
electronic thermostat control we are using, flat black paint over selective
paint would drop the price as well, and you might be able to pickup some
free to cheap glazing from old windows.

Again the ones we made certainly aren't the cheapest but never were meant to
be, but were more intended to be much cheaper than many of the production
units that sell for over $000+ but something a DIY person could build and
still retain the production quality look.

What sort of price range did you have in mind and how big a panel were you
looking to build?

Gary's website has lots of good DIY links and here is a good one for making
a flat plate collector - http://www.mobilehomerepair.com/article17solar.htm

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