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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 Steve<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 you cool down the chimney, you get a lot of condensate. Better to keep things on a low boil!<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 will try to get a condensing coal stove working this coming year. There are two reasons for it: a) I can get better total efficiency by condensing the large amounts of moisture from the fuel and combustion moisture (620 g/kg burned) and b) the stoves are often used to pipe gases into a hollow brick wall. This is usually condensing anyway with so much water accumulating that they have to be rebuilt every three years. Because of the poor combustion of traditional stoves used, there is a vile black liquid dripping out of cracks in the walls especially when it is in a two story house. The exit temperature almost never rises above 100 C on those cases. The moisture condensed is something like 2.75 cubic metres per season! Not much of that gets out as water vapour.<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'>Regards<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><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> stoves-bounces@lists.bioenergylists.org [mailto:stoves-bounces@lists.bioenergylists.org] <b>On Behalf Of </b>Steve Taylor<br><b>Sent:</b> 26 July 2011 05:51<br><b>To:</b> Discussion of biomass cooking stoves<br><b>Subject:</b> Re: [Stoves] WorldStove replies to BioFuelWatyche's latestimprecisereporting of facts.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On 26 July 2011 10:06, Ronald Hongsermeier <<a href="mailto:rwhongser@web.de">rwhongser@web.de</a>> wrote:<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt;background:white'><span style='font-size:9.0pt;font-family:"Verdana","sans-serif"'>Hi Steve,<br>Whilst I'm well aware that you can optimize chimney effects and heat-exchanger efficiency and the like, do you really think it likely that Crispin is reporting on a furnace for which over 80% of the heat goes up the chimney unused?<o:p></o:p></span></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>Well, no, obviously. <br><br>This group is getting a lot snarkier than we've seen before. Can we not all cool it down ? <br><br>Steve <o:p></o:p></p></div></div></div></body></html>