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<DIV><FONT size=2 face=Arial>Dale,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thank you for the discussion of your recent
work. I especially like the two versatile pot stands. These look to
me to be very useful. The ability to use thicker and longer
unprocessed wood to give a long burn time with low maintenance also
adds to the versatility. I will have to think about the wet wood. It
might be using more energy to evaporate the water then there is energy in
the wood. The Prime stove has a nice design which holds wet wood to the
outside of the stove so that waste heat will dry it. Making
provisions to dry it before burning it might be better then burning it
wet. There is a lot to think about in your discussion.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thank You,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Kirk H.</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=dandreatta@sealimited.com
href="mailto:dandreatta@sealimited.com">Andreatta, Dale A.</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">'Discussion of biomass cooking
stoves'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 02, 2016 8:39
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Stoves] Practical Stoves-
Introducing The Versatile Stove</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">For
some time I’ve been promoting the idea that stoves need to have practical
features to make them successful. Efficiency and low smoke are
desirable, but not the primary concern of most users. Here is my first
attempt at providing a stove to do that. For the moment I’m calling it
The Versatile Stove, as it gives the user lots of options for using the
stove. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">The
main features of the stove are:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">1.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">A
very large combustion chamber allows it to burn large diameter wood of any
length. Up to 8 cm diameter has been successfully burned.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">2.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">It
can handle 2 pots, one being up to 20 cm and the other up to 30 cm.
Round or flat bottom can be used. Actually, a pot larger than 30 cm
could be used, but then it is only a single pot stove.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">3.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">The
pots are cradled between the pot supports and are very stable (except pots
that are greater than 30 cm).<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">4.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">With
the large combustion chamber, fuel tending is minimized.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">5.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">The
stove is powerful, 5 liters is regularly brought to a boil in under 20
minutes. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">6.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">The
stove has some capacity to burn wet wood. This is still being
explored.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">7.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Depending
on how the fuel is arranged and managed, turn down ratios of about 3:1 are
possible. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">8.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Unfortunately,
fuel use is high and efficiency is low. This is also being worked
on.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P style="TEXT-INDENT: -0.25in; mso-list: l0 level1 lfo2"
class=MsoListParagraph><![if !supportLists]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><SPAN
style="mso-list: Ignore">9.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Smoke
seems to be a function of the fire size, as with most stoves I’ve worked
with. A big fire will make black smoke, the same as any other
stove. Wood that isn’t properly catching fire will make white smoke, the
same as any other stove. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Attached
is a document with more details and photographs to illustrate what I’m talking
about. There is also information about future testing and modifications,
as the development of the stove is continuing. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Also
in the pipeline, I’m a very part time professor at The Ohio State University,
and I’m working with a senior student group on family size stoves with
downfeed burners. These will be modeled after the downfeed burner
developed by InStove for larger stoves. My work with downfeed burners in
August at Stove Camp was very positive, so I think this may also produce a
very good stove with a lot of practical features. More on this after
they finish their work in May. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-FAMILY: 'Calibri',sans-serif; COLOR: black; FONT-SIZE: 11pt">Dale
Andreatta, Ph.D., P.E.<o:p></o:p></SPAN></P></DIV>
<P>
<HR>
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