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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dear Art<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>></span> We conducted CCTs in our Pilot project earlier this year and consistently achieved 40-50% increases in fuel efficiency over their existing open fires.<o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is very valuable information – actual savings from the field. Is the saving evident in ordinary cooking? That is, does the CCT number appear on a daily basis?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Another useful piece of information is whether or not people perform other heating tasks like boiling water (sterilising) more or bath water. Sometimes people would like to have more energy but simply can’t afford the time or money and an improved stove liberates them from their energy poverty, at least a bit.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In Lesotho Highland schools we found that improved stoves did not save a lot of fuel at some locations because they were so short of fuel they were eating their meals partly cooked! So the benefit was healthier food and better digestion with the same fuel (all that was available that day).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If we walk into someone’s office and propose to spend $1m they want to know what they are getting for their money. 45% is a great deal of savings, and in case you did not know, it higher than the average improved stove ‘as installed’ after a year of use.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I asked another contributor what sorts of cooking tasks they could accomplish with a load of 6 litres of maize cobs but have not heard back yet. Do you have a fuel mass - cooking task relationship you can report numbers for? For the Peko Pe there is still not much information available from the field and it would be good if you could submit an article for the stoves website so others can get a feeling for the size they should build.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Many thanks for your efforts.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Crispin<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>Dear Paal,<br>Thank you for once again being the most reasonable voice in these discussions.<br>Congratulations on your recent news. Well deserved. By the way, I answered Bojca off-list.<br>We are using a TLUD. The Estufa Finca, which owes a great debt to you. It makes both a great deal of heat and biochar. The great big farm families we are working with in rural Costa Rica seem to enjoy bot attributes. We conducted CCTs in our Pilot project earlier this year and consistently achieved 40-50% increases in fuel efficiency over their existing open fires. We are starting field trials with biochar and cocao and are looking forward to doing the same with coffee in the near future.<br><br>my best wishes for you sucess<br>Art Donnelly<o:p></o:p></p></div></body></html>