<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;}
/* 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>The “CONSTRUCTION MANUAL FOR HOUSEHOLD ROCKET STOVES” produced by the Republic of Uganda Ministry of Energy and Mineral Development (MEMD)<o:p></o:p></p><p class=MsoNormal>Promotion of Renewable Energy and Energy Efficiency Programme (PREEEP) with support from GTZ has a design for a “rocket Lorena” stove that it says in testing was much more efficient than a 3 stone fire, cooking for 2-3 days on the fuel used in 1 day with a 3 stone fire. They mix a lot of organic matter with the clay to make a lighter clay material. (Document can be downloaded here <a href="http://stoves.bioenergylists.org/stovesdoc/apro/guide/HOUSEHOLD%20Stoves%20Construction%20Manual%20Nov%202004.pdf">http://stoves.bioenergylists.org/stovesdoc/apro/guide/HOUSEHOLD%20Stoves%20Construction%20Manual%20Nov%202004.pdf</a> )<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Since it is so hard to find information accurately comparing performance of different stoves I’m curious if anyone knows this stove and has any comment on it, especially in comparison to inexpensive metal gasifier and rocket stoves?<o:p></o:p></p><p class=MsoNormal><img border=0 width=667 height=541 id="Picture_x0020_1" src="cid:image002.png@01CFF9C4.67137B70"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img border=0 width=984 height=547 id="Picture_x0020_2" src="cid:image004.png@01CFF9C4.5C2DDED0"><o:p></o:p></p><p class=MsoNormal>The thermal insulation they refer to I think is just the clay with sawdust or straw.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Huck<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#400040'>Huck Rorick</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:gray'>Executive Director<br>Groundwork Institute<br>2640 Silvercrest Street<br>Pinole, CA 94564<br>Phone: 510-222-4111<br>email: </span><span style='font-size:12.0pt'><a href="mailto:huckrorick@groundwork.org"><span style='font-family:"Arial","sans-serif";color:blue'>huckrorick@groundwork.org</span></a></span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:gray'><br></span><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:gray'>Website: </span><u><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:blue'><a href="http://www.groundwork.org"><span style='color:blue'>www.groundwork.org</span></a></span></u><span style='font-size:12.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>