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<DIV><FONT face=Arial size=2>TC 4.7 has been approached with a request for an
insight, studies, articles, or other sources that could assist them in
developing tools, intended for gas customer use, to estimate:</FONT></DIV>
<DIV><FONT face=Arial
size=2> 1. Annual
Fuel Utilization Efficiency or Seasonal Boiler Efficiency</FONT></DIV>
<DIV><FONT face=Arial
size=2> 2. Cycling
losses</FONT></DIV>
<DIV><FONT face=Arial size=2>
3. Fuel savings of lowering the operating steam
pressure </FONT></DIV>
<DIV><FONT face=Arial size=2>
4. Efficiency reduction due to oversized boilers</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>This is an area that doesn't seem to get discussed
much in the building energy arena. I am interested to see what
develops. Please share anything you know.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Jim Willson</FONT></DIV>
<DIV><FONT face=Arial size=2>Applications Subcommittee Chair TC
4.7</FONT></DIV><PRE>
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