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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='color:#1F497D'>Dear Ron<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Interesting questions.<o:p></o:p></span></p><div><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif";color:black'> Can this or any of the ELCD designs be used to produce char?<br><br></span><span style='font-family:"Arial","sans-serif";color:#1F497D'>I am pretty sure the stove could be used to produce at least some coke. I have not tried the ELCD (which is a modified traditional stove) fuelled with wood. Perhaps we will do that a little later in the year. <o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif";color:#1F497D'>Generally speaking all domestic coal fires can produce coke. <o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif";color:black'> Can this be fed with biomass briquettes or pellets as well as coal?<br><br></span><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D'>There are a number of stoves here so the answer is yes and no. The TLUD generally is not running well with wood briquettes but that is more a matter of making a stove designed to do so than the fuel being inappropriate. We have lots of issues with leaky stove fabrication. Too much primary air for a gasifier.<o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='font-family:"Arial","sans-serif";color:black'><br> How does one switch from TLUD to ELCD - and are both controllable for both primary and secondary air?<br><br></span><span style='font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D'>Ah, slight clarification. The ELCD stove is refuelled (it has a rather long combustion chamber with the air exit at the far end) by pushing the hot coals to the far end and refuelling in a way that the coals ignite the new fuel only at the far end. There is no conversion in today’s. The hot coals are pushed to the back of a pretty round combustion chamber, so let’s say, to the side. The coal (today it was 2 kg) is placed against the pile and towards the side loading door. The fire starts on the coals and burns slowly towards the door.<o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>As I write the test continues. The power has dropped to 2.0 kW, the CO(EF) is 15,780 so the flame must be nearly out at least on one side of the bed. The PM 2.5 is about 10 microgrammes /m^3. That translates into about 40 mg/Net MJ. It will probably not rise much over the next hour.<o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>There are traditional sawdust burning stoves around but extremely uncommon. It is possible some of them make char.<o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'><o:p> </o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>Regards<o:p></o:p></span></p><p class=MsoNormal style='margin:0mm;margin-bottom:.0001pt'><span style='color:#1F497D;mso-fareast-language:EN-CA'>Crispin<o:p></o:p></span></p></div></div></body></html>