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lang=EN-GB> </SPAN><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB>Dear Paul and
Kobus.</SPAN></P>
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style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB><SPAN
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</SPAN>From the very beginning I 1988 of my work with <?xml:namespace prefix =
st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place
w:st="on">FES</st1:place> I always used concentration lid, and did not even
think of other solutions until I saw the Tomas Reed<SPAN
style="mso-spacerun: yes"> </SPAN>FD stove in 2008, and the Champion stove
of Paul S A performed much better when he got the idea of using the
concentration lid. It is more important the concentration lid is used than to
discuss who was the first one use it.</SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt" lang=EN-GB><SPAN
style="mso-tab-count: 1"> <FONT size=2>
</FONT></SPAN></SPAN><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB>The
<st1:metricconverter w:st="on" ProductID="200 litres">200
litres</st1:metricconverter> incinerator I constructed in <st1:country-region
w:st="on"><st1:place w:st="on">Uganda</st1:place></st1:country-region> in 1995
had a <st1:metricconverter w:st="on" ProductID="125 mm">125
mm</st1:metricconverter> inside channel for primary air which was formed by
stamping the stuff to be burned around a pipe which was removed </SPAN><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB>before
igniting. The 2nd<SUP> </SUP> air came from twelve <st1:metricconverter
w:st="on" ProductID="40 mm">40 mm</st1:metricconverter> holes on top of the
barrel. The <st1:metricconverter w:st="on" ProductID="125 mm">125
mm</st1:metricconverter> pipe was placed on top of the concentration lid .to
make a better draft. The barrel was covered with bricks for protection and
for preheating the 2nd air.<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB><SPAN
style="mso-tab-count: 1">
</SPAN>Regarding the name of this type of stoves I agree with dr.Martin<SPAN
style="mso-spacerun: yes"> </SPAN></SPAN><SPAN
style="FONT-FAMILY: 'Courier New'; FONT-SIZE: 10pt" lang=EN-GB>BLDD??
BLUD? BLDD-CT-BLUD ?? it’s a bit confusing,</SPAN><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB> could rather
be <st1:place w:st="on"><st1:City w:st="on">FES.TL-</st1:City> <st1:State
w:st="on">ND</st1:State></st1:place> or FD. All hot air is naturally UD if it is
not FD. TL is important to indicate, the fact we know it will give cleaner
combustion. Probably we also should ask the end user so we all know what we are
talking bout.<o:p></o:p></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt" lang=EN-GB>With regards
Paal W</SPAN><SPAN
style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10pt; mso-ansi-language: NO-BOK"><o:p></o:p></SPAN></P>
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