<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"Avenir 55";
panose-1:0 0 4 0 0 0 0 0 0 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>All,<o:p></o:p></p><p class=MsoNormal>I am trying to settle a dispute within our office.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Our design utilizes Fulton Condensing Boilers with a design Return water temperature of 160 deg. F and an outdoor air reset schedule.<o:p></o:p></p><p class=MsoNormal>Our dispute is what to enter as the HIR for the boiler. The boiler is 86.5% efficient at 100% fire and 160 deg. F return water temperature, and 96% efficient at 100% fire and 80 deg F.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It is my understanding from everything I have read that the HIR needs to be 1.156 which would be 86.5% efficient. Is this correct? Also how does the default e-quest HIR-fPLR curve function?<o:p></o:p></p><p class=MsoNormal>Thanks for any help.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'><img width=119 height=37 id="Picture_x0020_1" src="cid:image001.jpg@01CCC178.9F2DFFD0" alt="Description: cid:image001.jpg@01CCA5C8.288E04E0"><o:p></o:p></span></p><p class=MsoNormal style='margin-top:6.0pt'><b><span style='font-size:14.0pt;font-family:"Avenir 55";color:#2D4D5E'>Steven C. Tobin Jr., P.E.<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Avenir 55";color:#CC9900'>PROJECT ENGINEER<o:p></o:p></span></p><p class=MsoNormal style='margin-top:12.0pt'><span style='font-family:"Avenir 55";color:#2D4D5E'>25501 west valley parkway</span><span style='font-size:10.0pt;font-family:"Avenir 55";color:#2D4D5E'><o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>olathe ks 66061<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>direct 913 344.0061<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>fax 913 345.0617<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>