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Post by pyrophile on Apr 4, 2014 13:34:26 GMT -8
After a 4" (10cm) and a 6" (15cm) batch box rocket stoves, I would like to build a bigger one to limit reloaling.
Did somebody try?
Should it have such a high heat riser?
I will use the system discribed by Pioniers with under floor rooting (not in the middle but on sides below the sloping sides.I already tried it in the second version of the 6 inches stove (with water tank bell) but I have problems to post images (I could'nt put pictures of a concrete blocks bell rocket stove I made 2 or 3 years ago...).
Benoit
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Post by peterberg on Apr 5, 2014 1:07:20 GMT -8
Eight inch batch rockets have been built, I don't know of any larger. New information about the S-portal: the duct leading to the port and the sides of the port itself should have at least a 1.5 to 2 times bigger csa than the slit which is ejecting the air.
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Post by pyrophile on Apr 5, 2014 2:25:47 GMT -8
Thanks Peter! Can you say more about this or maybe it was allready explained somewhere else and I did'n see it? In the last modification of the 15cm (6") batch box stove I made, each of both ducts (which were running under the firebox floor, under the sloping parts of the walls) had a csa of 1/2 (Edit : rather 3/4) slit's csa...   |
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Post by pyrophile on Apr 5, 2014 2:54:55 GMT -8
I could before and now there is a problem when I try to add an attachement even if the file is under 1 Mo. I sent you a message, Robert! Me and computers!! When will we meet somewhere in Europe?
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Post by pyrophile on Apr 5, 2014 3:23:38 GMT -8
EDIT : my problem of inserting images is solved
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Post by pyrophile on Apr 5, 2014 3:35:10 GMT -8
Kuznetsov's workshop : Interesting! I must think about this! Even if I don't believe too much anymore to Kuznetsov's firebox design, it should be very interesting!
Did you read my private message?
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Post by Robert on Apr 5, 2014 3:51:13 GMT -8
Yes i have sent you an email... I will upload your photos, but keep trying with the other way, you will succed... if you need help maybe i could try to explain it on SKYPE:) if you use it. BTW. why do you do not believe in Kuznetsov firebox? it will be interesting to learn. The whole bell concept is interesting and then maybe just trying to place the batchbox rocket inside. What i find limiting in the rocket fireboxes is the height of the risers  |
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Post by pyrophile on Apr 5, 2014 3:55:10 GMT -8
For Kuznetsov's stoves, I doubt ONLY on the firebox (I built many, Kuznetsov's or Chernov's), but I like bell system which I use since 2005.
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Post by Daryl on Apr 5, 2014 4:29:08 GMT -8
The whole bell concept is interesting and then maybe just trying to place the batchbox rocket inside. What i find limiting in the rocket fireboxes is the height of the risers I built a little mini brick L shaped rocket inside a square brick "bell" last year. I got the idea off of a Kuznetsov stove from youtube. The heated chamber worked well as an oven but was messy. Lol. There are people out there (youtube) experimenting with shapes and the hybrid builds aren't always using the traditional risers and direction of flow. I am interested to see what you come up with. |
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Post by pyrophile on Apr 5, 2014 4:52:26 GMT -8
Thanks a lot, Robert, it works! If moderators are OK, I deleted my previous messages about my problems with images insertion -which are solved- in order to facilitate reading. I post also images of a concrete stove/single bell (protected by ordinary bricks on edge or thin concrete blocks plastered with earth) I mentionned somewhere else. Lightweight firebricks. Vertical labyrinth (for longer exchange) forming a single bell. 20cm system. little black oven. Insulation behind the stove. Important : thin cardboard beetween external and intenal walls to allow expansion.7  .     |
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Post by Robert on Apr 5, 2014 5:46:22 GMT -8
Ok. Great. This pictures should go to the J-tube/Bell with Oven thread. They fit there excelent. So let us do the final editing for the sake of reading this thread of yours about batch-box. There is few questions i would like to ask about this J-Tube build of yours but better we will do it in the above mentioned thread.
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