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<DIV><FONT size=2 face=Arial>All,</FONT></DIV>
<DIV><FONT size=2 face=Arial><EM></EM></FONT> </DIV>
<DIV><FONT size=2 face=Arial>The engineer at Lawrence
<STRONG><U><EM>Berkley</EM></U></STRONG> National Labs stove testing lab has
supplied the following information concerning the recent tests of the Wonderwerk
TLUD-ND stove.</FONT></DIV>
<DIV><FONT size=2 face=Arial>Kirk H.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV>Our plan is to put everything in a publication once we have finished
testing all of the stoves.</DIV>
<DIV><FONT size=2 face=Arial>____________</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV>The numbers I reported to you are calculated using equations in the WBT
4.2.4. We do not use a spreadsheet to calculate those numbers and instead use a
Python code we developed to read it our raw data. Also, we do not do the carbon
balance method to calculate PM2.5, but instead use the total dry fuel consumed
method (fcd). Using Python helps us also analyze our ultra-fine particle data.
Before you left, we cross checked our numbers with the WBT 4.2.4 spreadsheet
(that we double checked for errors) to make sure nothing looked amiss with our
Python analysis. This is something we always to to ensure data was imported
correctly.</DIV></BODY></HTML>