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Dear Paul</div>
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It is definitely a TLUD but it is not a TLUD pyrolyser which is a subset of all things top lit and updraft. </div>
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Perhaps the TLUD builders have slipped into using the shorter form of the name. </div>
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Couldn't you have:</div>
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TLUD</div>
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TLUD gasifier</div>
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TLUD pyrolyser (with various levels of carbon gasification)<span style="font-size:initial; text-align:initial; line-height:initial">ý?</span></div>
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I have not tested it yet with a meter to see how well it burns but it definitely works. </div>
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<span style="font-size:initial; line-height:initial; text-align:initial">It is replacing a huge square, almost cubic steel TLUD loaded with coal which seemed to have no secondary air and no flame space. They said it worked for a long time on a load of fuel
but was 'very smoky'. It didn't even look like a stove. I thought it was a storage bin.
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Regards</div>
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Crispin </div>
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<div>Crispin, Andrew, and all,<br>
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I am glad that it works, and I am not totally sure what type of combustion method it uses, except that it does not fit the description of a TLUD stove, which is characterized by a migrating pyrolytic front (MPF). And a TLUD does not have "primary air supplied
from above."<br>
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Paul<br>
<pre class="moz-signature" cols="72">Doc / Dr TLUD / Prof. Paul S. Anderson, PhD
Email: <a class="moz-txt-link-abbreviated" href="mailto:psanders@ilstu.edu">psanders@ilstu.edu</a>
Skype: paultlud Phone: +1-309-452-7072
Website: <a class="moz-txt-link-abbreviated" href="http://www.drtlud.com">www.drtlud.com</a></pre>
<div class="moz-cite-prefix">On 10/24/2016 1:28 PM, Andrew Heggie wrote:<br>
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<div class="gmail_quote">On 24 October 2016 at 09:57, Crispin Pemberton-Pigott <span dir="ltr">
<<a href="mailto:crispinpigott@outlook.com" target="_blank">crispinpigott@outlook.com</a>></span> wrote:<br>
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<p class="MsoNormal" style="background:white">Summary: It is a TLUD with primary and secondary air supplied from above. The stove is used to heat the office of the welding shop.</p>
<p class="MsoNormal" style="background:white"> </p>
Crispin<br>
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<div>Unless I have misread your description I would say this is a Top Lit Cross Draught.<br>
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<div>It's similar to a device I made to burn stumps out of the ground using a ford tractor wheel but I used an old vacuum cleaner to Blast the air in.<br>
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<div>AJH <br>
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