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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It was suggested that convective floor heating system using
zone placed baseboards could be used to model Radiant floor heating if the
floor/room temp delta is low so the main mode is convection (typical) and the
piping is placed near the surface (also typical).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>1. Is temp delta of 10 deg F acceptable? I learn that
typically the floor temperature is 85 deg F for radiant floor heating system. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>2. I understand that doe-2 does not allow a primary to
secondary loop heat exchanger - it assumes the loop-to-loop heat transfer</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>is via a valve and fluid flow ... where in the real radiant
floor system (typically) the boiler water is hot flow low with a heat exchanger
with the separate floor loop with higher flow and lower T (typically just a few
degrees above the desired room T rather than 150-180 degF). So in this
case a higher flow loop in doe-2 with the total pump head/flow set to get the
total pump power is tricky. What is the typical number on this? I have a 1273
sqft detach house and 3670 sqft 8 units apt.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any help is greatly appreciated.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Virdiansyah "Virdi" Permana</span></font><o:p></o:p></p>
<p class=MsoNormal><strong><b><font size=2 color=green face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:green'>EMSI</span></font></b></strong><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Energy Analyst</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(202) 291 3102 T</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>(202) 291 3107 F</span></font> <o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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