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Newbie questions (longish) - Page 2

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Posted by Gary on February 1, 2006, 10:52 pm
 

Hi,
...

The utility audits are good deal -- some even include blower door tests.

I have

Its really just the extra complexity that fans, pumps, controllers, ... bring.
Lots of people use them successfully.

I think I would take a look at how much you will be collecting vs what its going
to cost.  You can use the Radiation On Collector program on BuildItSolar to see
how much the collectors will get.  Is there no better place to put them?  On the
ground? On the south wall of the house?

  I mean after all they will be cheap.  Not

I just got the OK from David Bainbridge to put his book "Integeral Passive Solar
Water Heater Book" up on BuildItSolar for download.  I would definitely take a
look at it before deciding on your batch water heater design.  Should be up in a
couple days.

Gary


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Posted by Bob the Tomato on February 2, 2006, 7:12 am
 
wrote:

(snippety do dah)


Okay.  I just wanted to make sure I wasn't stepping on a landmine.


I will take a good hard look before I build anything.  I was thinking
that the roof mount would be good, because it passes the Wife Test.
We *do* have one south facing roof area, which may be large enough for
one panel.  I need to get up and take a look at it.  The south wall of
the house may work, but I'd need to take out some pretty big trees
first.  I will need to get a clear day and do that solar survey to be
sure, but I think the roof mount is going to be the best bet.  As you
say, it's cost vs. recovery.  If I can build them for the cost of the
foam and ductwork and fans, is it worthwhile to build more capacity
than I need, granted a lower efficiency collector placing, but easier
to pass the Wife Test.  (Woodworkers call this person SWMBO, She Who
Must Be Obeyed.)


Most excellent.  I look forward to reading it.

Thanks!

Bob the Tomato


Posted by Jeff Thies on February 1, 2006, 10:47 pm
 <snip>

   If you are just experimenting, then using the

   Can you give some details on this gluing process? Are you applying
the great stuff to the edge and gluing like a normal glue, or are you
running a bead at the intersection?  Also, I see  that there are several
types available now, including water soluble. Do those work?

   Cheers,
Jeff


Posted by Gary on February 1, 2006, 11:06 pm
 Jeff Thies wrote:

Hi Jeff,

I just put a bead of the Great Stuff along the whole edge of one of the pieces,
to be joined, and then push them together.  The bead I use is about 3/8 -- if
you do it right, a little oozes out of the joint.  You have to have some method
to clamp the pieces for 15 minutes or so, but it can be very simple -- I usually
just use weights.
I've never tried anything other than the Great Stuff brand.  It would be nice if
there was something similar that didn't stick quite so well to your skin :-)

There are some construction pictures clear at the bottom of this page:
http://www.builditsolar.com/Experimental/FlowOrganizer/FlowOrg.htm

Gary









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Posted by Gary on February 2, 2006, 3:24 pm
 Gary wrote:

Hi again,
Forgot to mention that as an alternative to using clamps or weights to hold
things together while the Great Stuff sets, you can just pin pieces together
with 16d nails.  You can just push them in with your fingers -- very quick.
Galvanized work best because they are rough.  After the glue sets, pull the
nails out and use them again.
Gary


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








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