<html><head></head><body lang="en-GB" style="background-color: rgb(255, 255, 255); line-height: initial;"> <div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Dear Jeb</div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br>With that layout and refuelling you will able to offer something that can be run indefinitely. Very good. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">The way we handled the coke and ash was to tilt the grate downwards toward the fire. In the set of drawings on my website (Library/Stoves/GTZ7) the grate is not tilted enough. It should be about 20 degrees at least. The far end is upturned a little to catch the coke/char and not let it pile up against the far wall. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">The TLUD fire is built on top of the grate perhaps 250 mm high. The final version has a 50 watt 12 volt TEG on the heat exchanger with two computer fans cooling it. The idea is it can run a TV and lights. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">I found in experiments at YDD that the grate for wood should have quite small gaps - 4 to 5mm. It really reduces the char loss in the ash. For reasons which are not clear, round bars accomplish this better than flat upper surfaces. Still thinking about that. </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Regards </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);">Crispin </div><div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><br></div><div id="_originalContent" style=""><div dir="ltr">Dear Crispin<div><br></div><div>I just realized now reading from your remarks... that what im doing is a cross draft gasifier. Thanks for bringing that up. </div><div><br></div><div>The material from YDD will surely help. My crossdraft feeding of fuel on the side port comes in contact with the hot charcoal bed. The fresh fuel either comes on the side, or on the top of the hot char bed. But wood sticks can be poked under the hot char bed and they give better results. </div><div><br></div><div>Im writing a narrative of the details of the anatomy of the stove as Dr. Paul requested. Will post it as soon as i was able to get the size of the document down to less than 1.5 MB. </div><div><br></div><div>Regards</div><div><br></div><div>Jed </div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><br></div></div></div></div></div></div></div></div></div></div></div></div><!--end of _originalContent --></div></body></html>