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Post by pierre1911 on Jul 11, 2017 10:19:21 GMT -8
Hi, Sorry for my poor english. I start to build a rocket batch only to make canning. This is the drawing.  I'm chosing a 100mm diam modèle on the Peter data bank But I want to use coal (start with wood and after the magic dragon is hot, use coal). Why? Because I make a lot of recycling, and some guys give me 2 tonnes of coal. You can see some pictures on my blog (link)
Sorry it's only in french  Thank's |
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Post by pigbuttons on Jul 12, 2017 8:40:10 GMT -8
Looks really good. The pics are easy to follow. Very professional.
You may have some issues to work out with coal; the burning properties are significantly different. Best of luck.
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Post by pierre1911 on Jul 12, 2017 13:13:12 GMT -8
Thank's so much This is the plan of the roof, to cut all parts  |
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Post by pierre1911 on Jul 13, 2017 5:21:00 GMT -8
It's RUN! YES!       I make the first fire with wood not coat. Because I must made a middle floor with à lot a lof off holes (5mm) for oxygen have fun! |
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Post by drooster on Jul 13, 2017 12:59:35 GMT -8
If you get enough heat in the riser for secondary combustion of wood gas, then coal will work for a short time until the whole unit cools too much ...
That's my uneducated prediction, anyway.
The batchrocket is an optimised system for dry wood only.
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Post by pigbuttons on Jul 13, 2017 18:51:41 GMT -8
Congratulations on getting it running!
Hey Pierre, what did you cast your stove parts out of? Nice casting job.
Also in your pics it looks like you've made a few prototypes in the past.
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Post by satamax on Jul 15, 2017 23:50:57 GMT -8
Mix of up to 30% coal works all right.
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Post by pierre1911 on Jul 18, 2017 10:15:18 GMT -8
Congratulations on getting it running! Hey Pierre, what did you cast your stove parts out of? Nice casting job. Also in your pics it looks like you've made a few prototypes in the past. Thank's Yes i made some prototypes in the past but they did'nt wok great, that's why i build a new one. I use a middle cost refractory cement to make the casting. This one link
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Post by pierre1911 on Jul 18, 2017 10:18:12 GMT -8
Mix of up to 30% coal works all right. I was testing 12h with 100% coal but after 2h preheating with 100% ultra dry wood, but with a grid on the floor for oxygen |
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Post by pierre1911 on Jul 18, 2017 10:19:43 GMT -8
bad suprise after 2 days of working to make the fist tomato sauce's  It's logic because I was cut to much the reaser to have de 50mm port deep. I will rebuild a reaser. I'm start to build the rest of the parts    |
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Post by satamax on Jul 18, 2017 10:33:19 GMT -8
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Post by pierre1911 on Jul 19, 2017 8:50:15 GMT -8
satamax you are my lord!!!
I'm come back from Prosiref who's give me a lot of informations how i can build my parts!
In progress!
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Post by pierre1911 on Jul 19, 2017 21:22:04 GMT -8
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Post by satamax on Jul 20, 2017 2:37:18 GMT -8
Wood too small, to much much primùary air, no insulation equals?
Smoke!
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Post by peterberg on Jul 20, 2017 3:06:11 GMT -8
In order to get smoke out of a batch box, I would add "burning on a grid".
Leave out the grid, use front air close to the bottom only to begin with. Load the thing with biggest pieces at the bottom, smallest pieces on top. Lit it on top.
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