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<DIV>Insulation has one major positive effect, it stabilized the temperature of
the battery bank. With enough insulation battery temperature will vary very
little even with big swings in ambient. The one major downside is that in hot
weather or a warm room, they cannot get rid of heat. It is semi-common to bury
batteries in very cold climates and in very hot climates – but the same warning
applies if a lot of internal heat is generated. In our experience a fan won’t do
much to cool hot batteries.</DIV>
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<DIV> </DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=dana@solarwork.com
href="mailto:dana@solarwork.com">Dana</A> </DIV>
<DIV><B>Sent:</B> Thursday, December 09, 2010 9:32 AM</DIV>
<DIV><B>To:</B> <A title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">'RE-wrenches'</A> </DIV>
<DIV><B>Subject:</B> [RE-wrenches] To insulate a battery bank</DIV></DIV></DIV>
<DIV> </DIV></DIV>
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style="FONT-STYLE: normal; DISPLAY: inline; FONT-FAMILY: 'Calibri'; COLOR: #000000; FONT-SIZE: small; FONT-WEIGHT: normal; TEXT-DECORATION: none">
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<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">For many
years I have had these questions asked of me – <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">Should you
or should you not insulate a battery bank in an Un heated
building?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">If the
battery bank is giving off enough heat to retain is the system being operated
correctly to produce that much heat?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">If it is
giving of that much heat the vent fan will be on therefore cooling the battery
bank.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">If the
battery is cold and the building [say in spring] warms up the insulation will
prevent the bank from warming with the ambient
temperature.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">Should it be
a little insulation say 1” or 2-4” of insulation?<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt">I have
leaned toward an insulated building with a vented battery box as required by NEC
and Colorado electrical inspectors. I have worked on battery banks installed by
others that are super insulated with convection venting and found them to be
very cold. Colder than ambient temps.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 14pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">Dana
Orzel<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">Great Solar
Works, Inc<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">E -
dana@solarwork.com<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">V -
970.626.5253<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">F -
970.626.4140<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">C -
970.209.4076<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">web -
www.solarwork.com<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt"><o:p></o:p></SPAN> </P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">"Responsible
Technologies for Responsible People since 1988"</SPAN><o:p></o:p></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Century Gothic','sans-serif'; FONT-SIZE: 12pt">Do not ever
belive anything, but seriously trust through action.<o:p></o:p></SPAN></P>
<P class=MsoNormal><o:p></o:p> </P></DIV>
<P>
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