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Try REHAU North America Construction division. I have worked on
modeling their components<br>
off and on for several years. See<br>
<br>
<a class="moz-txt-link-freetext" href="http://na.rehau.com/construction/renewable.energy/ground-air.heat.exchange/ground-air.heat.exchange.shtml">http://na.rehau.com/construction/renewable.energy/ground-air.heat.exchange/ground-air.heat.exchange.shtml</a><br>
<br>
John R Ross III PE<br>
Westwind Corporation<br>
Vienna, VA 22182-1958<br>
<a class="moz-txt-link-abbreviated" href="mailto:energy.wwind@cox.net">energy.wwind@cox.net</a><br>
<br>
<br>
Bishop, Bill wrote:
<blockquote
cite="mid:83996EE70003D04B830E1C4A5E6688CEC6C058@PATHMAIL2.pathfinderengineers.com"
type="cite">
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<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">I am performing
mechanical design and energy modeling for an
existing dormitory renovation in upstate NY. There is a concrete
crawlspace
with ground contact that I think could be used to preheat/<span
class="SpellE">precool</span>
makeup air. I have checked the Bldg-<span class="SpellE">sim</span>
archives but
have not found any design guides or recommendations for using existing
crawlspaces/basements as earth tubes. We’d be cutting through concrete
structural walls to build something so I need to do some homework to
justify
it. Any suggestions would be appreciated.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Regards,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;">Bill<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><b style=""><font color="black"
face="Franklin Gothic Medium" size="2"><span
style="font-size: 10pt; font-family: "Franklin Gothic Medium"; color: black; font-weight: bold;">William
Bishop, EIT, LEED<sup>®</sup> AP </span></font></b><b style=""><font
color="#006600" face="Franklin Gothic Medium" size="2"><span
style="font-size: 10pt; font-family: "Franklin Gothic Medium"; color: rgb(0, 102, 0); font-weight: bold;">|</span></font></b><b
style=""><font color="black" face="Franklin Gothic Medium" size="2"><span
style="font-size: 10pt; font-family: "Franklin Gothic Medium"; color: black; font-weight: bold;">
</span></font></b><b style=""><font color="black"
face="Franklin Gothic Medium" size="2"><span
style="font-size: 10pt; font-family: "Franklin Gothic Medium"; color: black; font-weight: bold;">Pathfinder
Engineers &
Architects LLP</span></font></b><b><font color="black"
face="Franklin Gothic Medium" size="2"><span
style="font-size: 10pt; font-family: "Franklin Gothic Medium"; color: black; font-weight: bold;"><o:p></o:p></span></font></b></p>
<p class="MsoNormal"><font color="black" face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black;">Mechanical
Engineer<o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="black" face="Arial" size="1"><span
style="font-size: 5pt; font-family: Arial; color: black;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><st1:address w:st="on"><st1:Street w:st="on"><font
face="Arial" size="1"><span style="font-size: 9pt; font-family: Arial;">134
South Fitzhugh Street</span></font></st1:Street><font size="1"><span
style="font-size: 9pt;"><br>
</span></font><st1:City w:st="on"><font face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial;">Rochester</span></font></st1:City><font
face="Arial" size="1"><span style="font-size: 9pt; font-family: Arial;">,
<st1:State w:st="on">NY</st1:State> <st1:PostalCode w:st="on">14608</st1:PostalCode></span></font></st1:address><font
size="1"><span style="font-size: 9pt;"><br>
</span></font><font face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial;">T: (585) 325-6004 <font
color="black"><span style="color: black;">Ext. 114</span></font></span></font><font
size="1"><span style="font-size: 9pt;"><br>
</span></font><font face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial;">F: (585) 325-6005</span></font><font
color="black" face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="black" face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black;"><a class="moz-txt-link-abbreviated" href="mailto:wbishop@pathfinder-ea.com">wbishop@pathfinder-ea.com</a><o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="black" face="Arial" size="1"><span
style="font-size: 9pt; font-family: Arial; color: black;"><a class="moz-txt-link-abbreviated" href="http://www.pathfinder-ea.com">www.pathfinder-ea.com</a></span></font><span
style=""><o:p></o:p></span></p>
<p class="MsoNormal"><font color="green" face="Webdings" size="5"><span
style="font-size: 18pt; font-family: Webdings; color: green;">P</span></font><font
color="green"><span style="color: green;"> </span></font><font
color="green" size="1"><span style="font-size: 7.5pt; color: green;">Please
strive to live
sustainably.</span></font><font color="green"><span
style="color: green;"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"><o:p> </o:p></span></font></p>
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