<div dir="ltr">G&#39;day Solar Bozo&#39;s of old, lol,<div><br></div><div>I&#39;ve found that over the years the  zephyr just doesn&#39;t pull enough cfm&#39;s. My solution was to use the Rule 240-24V. I buy them from amazon for around $70. These are generally used to vent boats prior to starting the engine and are US Coast Guard approved. I normally mount them to the top of the battery box and allow at least 12&quot; before I vent to an outside wall. I buy a 4&quot; - 3&quot; rubber adapter in the plumbing department of Lowe&#39;s with the 4&quot; attached to the blower, the 3&quot; to sch 40 pvc piping. Make sure you screen the outdoor section to eliminate critters and flying pests. The cfm is around 200. Unfortunately, they do not offer a 48v unit so I just tap 24 volts off of the battery bank (Steve H is gonna kill me on this one, lol) and I use a 12v relay. For those inverters that don&#39;t offer a signal or dry contact the Morningstar four channel relay driver works. It has a ton of options.</div><div>Hope this is helpful.</div><div><br></div><div>Your Friendly Neighborhood Solar Guy,</div><div>Christopher</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Jun 4, 2025 at 8:37\u202fAM Dana Orzel via RE-wrenches &lt;<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg-4100235220147156567">





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<p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">Site looks active [updated 3/2025.]<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:14pt;font-family:&quot;Century Gothic&quot;,sans-serif">My 48volt zephyr fan is still working great since installed in 2015.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-family:&quot;Century Gothic&quot;,sans-serif">_________________________________________________________<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(39,83,23)">Dana Orzel                </span><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(39,83,23)">GREAT SOLAR WORKS!                      <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(39,83,23)">C \u2013 208.721.7003      E \u2013
<a href="mailto:dana@solarwork.com" target="_blank"><span style="color:rgb(39,83,23);text-decoration:none">dana@solarwork.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(39,83,23)">W - www. <a href="http://greatsolarworks.com" target="_blank">greatsolarworks.com</a>     <a href="http://www.solarwork.com/" target="_blank"><span style="color:rgb(39,83,23);text-decoration:none">www.solarwork.com</span></a><u></u><u></u></span></p>
<p class="MsoNormal"><i><u><span style="font-family:&quot;Century Gothic&quot;,sans-serif;color:rgb(39,83,23)">\u201cResponsible Technologies for Responsible People since 1988!\u201d<u></u><u></u></span></u></i></p>
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</div></blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="text-align:center"><span style="font-size:10pt;color:rgb(31,73,125)"><font face="Arial, sans-serif">Chris Schaefer\u2019s<br></font></span><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4xwQObc1lE4m-NGBGV2ONhmIo5vEAZs2lO5NoIACbJsI4fJ_a1hsiFC2biIJSxI90VJ_atMDSuJtjW-"><br><i><span style="font-family:Arial,sans-serif;color:rgb(31,73,125)"><span style="font-size:9pt">Tel 585-229-2083 or Cell 585-748-1870 </span><span style="font-size:12px"><br></span></span></i><i style="font-size:12.8px"><span style="font-size:10pt"><font color="#1f497d"><font face="Arial, sans-serif">5115
S Hill Road ~ Canandaigua New York 14424<br></font></font></span></i><i style="font-size:12.8px"><span style="font-size:10pt;font-family:Arial,&quot;sans-serif&quot;;color:rgb(31,73,125)"><a href="http://www.solarandwindfx.com" target="_blank"><span style="color:blue">www.solarandwindfx.com</span></a> ~ E-mail: <span style="color:blue"><a href="mailto:chris@solarandwindfx.com" target="_blank">chris@solarandwindfx.com</a></span></span></i></p><p style="text-align:center"><i><span style="font-size:10pt;font-family:Arial,&quot;sans-serif&quot;;color:rgb(31,73,125)"><img src="https://ci3.googleusercontent.com/mail-sig/AIorK4ytw2s5T2YLi-11AL2Jyo5Jt6UbbDYElzDl4X0PqflWvs06VON--dPV7x_cgeW3zkEV-fkQc7IhsiwV"><br></span></i></p>

<p style="text-align:center"><span style="font-size:10pt;font-family:Arial,&quot;sans-serif&quot;;color:black">Thomas Jefferson,
the author of our great Constitution, once said, &quot;democracy&quot; will
cease to exist when you take away from those who are willing to work and give
to those who would not.&quot;</span><span style="font-size:10pt;font-family:Arial,&quot;sans-serif&quot;;color:rgb(31,73,125)"></span></p></div></div></div></div></div></div>