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<div class=Section1>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Peter –
<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I may have
been who you spoke with. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Since 1995 I
have installed 3 kinds of flat plate SHW collectors and THERMOMAX / OVENTROPE, SUNDA
and APRICUS evacuated tube collectors. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Long story
shortened on the evacuated tube collectors. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I have
replace 290 of 300 evacuated tubes by manufactured by Thermomax after 3-4
years. I had replacements in the first year, I do not remember the # replaced. Been
there and not going back.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>From the
experiences with evacuated tubes the major short coming is the intersection of glass
to rubber collar to heat pipe. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I see the
single wall glass evacuated tube collectors as a recipe for eventual failure. 3
materials 3 different thermal expansion and contraction co-efficient. Add “wine
glassing” where the bottom of the single wall glass vacuum tube falls off
[looks like a wine glass without a base] and I would not install one if you
gave it to me<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The first
time I saw the APRICUS evacuated tube build I was sold. The vacuum is between a
tub in a tube, it is glass on glass. The heat pipe fits inside the inner tube
in a heat collector piece of galv. sheet metal, and no rubber collar that is
required to maintain a vacuum seal. I love it.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The glass vacuum
tubes are heavier and less prone to an accidental bang and break.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>If a glass tube
gets broken you can replace the glass vacuum tube separate from a heat pipe,
and if the heat pipe fails you can replace jut the heat pie and reuse the tube..
I like components and this is the great advantage with APRICUS over the other
designs.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>15 year
warranty on the manifold and 10 year on the glass vacuum tube and heat pipe. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>The whole
tube is black and absorbs heat 360</span><span style='font-family:"Arial","sans-serif"'></span><span
style='font-family:"Arial","sans-serif"'> so it even picks up heat on the back
off of a roof or reflected surface behind.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>This works
for me. I am now an APRICUS dealer for evacuated tubes and use several flat plate
manufacturers.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>Dana
Orzel<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>Great
Solar Works, Inc<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>www.solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>E
- dana@solarwork.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>V
- 970.626.5253<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>F
- 970.626.4140<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#1F497D'>C
- 970.209.4076<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN style='font-family:"Arial","sans-serif";color:#1F497D'>“I'd put
my money on solar energy… I hope we don't have to wait 'til oil and coal
run out before we tackle that.”<o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN style='font-family:"Arial","sans-serif";color:#1F497D'>—Thomas
Edison, in conversation with Henry Ford and Harvey Firestone, March 1931</span><span
style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Peter
Parrish<br>
<b>Sent:</b> Wednesday, March 25, 2009 7:41 AM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> [RE-wrenches] Evacuated Tube-based SDHW<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>Back at
the San Diego Solar 2008 show, I made a point to look at a number of evacuated
tube systems for SDHW. I got one very strong recommendation from a
Colorado-based installer I bumped into, and…I promptly put the
information into “write-only” memory. So here I am six months later
no better off than I was before I went to the show. </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>Has there
been a recent thread on evacuated tube SDHW systems? If so, how do I access the
archives? If not could we start a thread?</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>My
principal reason for looking into this technology is for space-limited
applications. Right now we are looking at trying to find space on a crowded
roof for about 100-120 sq-ft of conventional flat plate collectors (e.g.
SunEarth Empire 4’x8’ or 4’x10’), and skylights,
parapet walls and a PV array are getting in the way. Climate is southern California
coastal.</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>Any help
would be appreciated.</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>- Peter</span><o:p></o:p></p>
<div>
<p style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Peter T. Parrish, Ph.D., President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
peter.parrish@calsolareng.com</span><span style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:blue'> </span><o:p></o:p></p>
</div>
<div>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Peter
Parrish<br>
<b>Sent:</b> Wednesday, March 25, 2009 6:05 AM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> Re: [RE-wrenches] MPPT greater than 150V</span><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>Yes, as
far as I know.</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>Apollo is
supposed to have one in beta evaluation but we haven’t been able to
obtain satisfactory information from them how product evaluation is taking
place and when the unit will be available as a product. We had an application
for which we wanted to use this new product and gave up on them and their
product.</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'>- Peter</span><o:p></o:p></p>
<p class=MsoNormal style='margin-left:.5in'><span style='color:black'> </span><o:p></o:p></p>
<div>
<p style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Peter T. Parrish, Ph.D., President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
peter.parrish@calsolareng.com</span><span style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:blue'> </span><o:p></o:p></p>
</div>
<div>
<div class=MsoNormal align=center style='margin-left:.5in;text-align:center'>
<hr size=2 width="100%" align=center>
</div>
<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> re-wrenches-bounces@lists.re-wrenches.org [mailto:re-wrenches-bounces@lists.re-wrenches.org]
<b>On Behalf Of </b>Carl Emerson<br>
<b>Sent:</b> Tuesday, March 24, 2009 5:20 PM<br>
<b>To:</b> 'RE-wrenches'<br>
<b>Subject:</b> [RE-wrenches] MPPT greater than 150V</span><o:p></o:p></p>
</div>
<p class=MsoNormal style='margin-left:.5in'> <o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Hi there,</span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB> </span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Can someone
confirm that there is still no MPPT regulators available capable of accepting
array voltages greater than 150.</span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB> </span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Thanks,</span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB> </span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Carl Emerson</span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Free Power Ltd.</span><o:p></o:p></p>
<p class=MsoPlainText style='margin-left:.5in'><span lang=EN-GB>Auckland NZ</span><o:p></o:p></p>
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