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<p class="MsoNormal">Agreed – baseboards are my first choice for handling “oh and there’s also a space heater you forgot about” and similarly simple scenarios, when that’s a feasible option.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In some instances, zonal reheat can also play a role in approximating a second system, where baseboards are unavailable or otherwise in use. Caution however to consider the implications on the “terminal box” (even if it’s virtual/imaginary)
capacity to deliver needed heating/cooling at all hours.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There’s also always the option to turn your single zone into two. It’s typically not as simple post-wizards (experiences like this build foresight to draw up your zone maps to avoid the issue – we’re always learning!), but is definitely
do-able! You can thermally connect the two zones with an air wall to ensure ready heat transfer. Be mindful this practice can demand extra inputs (relying less on auto-sizing) to ensure adequate capacity/airflow are provided to each “sub-zone.”<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Also stepping back a bit for perspective – this might be a worthwhile exercise: consider whether 2 similar systems can be effectively “combined” into one for the simulation (perhaps of a 3<sup>rd</sup> type). Conceptualizing, executing,
and verifying behavior for the marriage of distinct real-world systems is often a mental-hurdle the first few times, but can become a very useful sub-skillset in your energy analysis toolbox for tackling very complex situations.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">~Nick<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#3A7A46"><img width="726" height="9" style="width:7.5625in;height:.0937in" id="Picture_x0020_1" src="cid:image001.png@01D2C034.7F49EFB0"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span style="color:#3A7A46"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Regional Energy Engineering Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469"> Schneider Electric</span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">D </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6361
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">M </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">785.410.3317
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">F </span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">913.564.6380</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#57B069">E </span><span style="color:#1F497D"><a href="mailto:nicholas.caton@schneider-electric.com"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">nicholas.caton@schneider-electric.com</span></a><o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219<br>
United States</span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>David Eldridge via Equest-users<br>
<b>Sent:</b> Friday, April 28, 2017 2:55 PM<br>
<b>To:</b> Tim Burke <tburke@tei-engineering.com>; equest-users@onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Two heating systems in 1 zone.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">You can have baseboard heat plus an airside system. Only one air system can serve a zone.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">David<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><u><span style="color:black">
</span></u><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;color:black"> </span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:#244061">Grumman/Butkus Associates</span></b><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="color:black">
</span></u><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> </span><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Equest-users [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Tim Burke via Equest-users<br>
<b>Sent:</b> Friday, April 28, 2017 1:39 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a>;
<a href="mailto:equest-users@onebuilding.org">equest-users@onebuilding.org</a><br>
<b>Subject:</b> [Equest-users] Two heating systems in 1 zone.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a way to put two heating systems in 1 zone?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial \(W1\)";color:black">Tim Burke</span><span style="font-size:10.0pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#999999"> </span></b><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial \(W1\)";color:black">T.E., Inc.</span><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial \(W1\)";color:black">830 North Riverside Drive #200</span><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial \(W1\)";color:black">Renton, WA. 98057</span><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial \(W1\)";color:black">(425) 970-3753 Phone</span><span style="font-size:13.5pt;font-family:"Times New Roman",serif;color:black"><o:p></o:p></span></p>
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