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Post by independentenergy on Nov 13, 2015 7:03:09 GMT -8
It depends on the wood you use, I in backbox I expected a grill for ash because I burn hardwood and creates more embers that last longer.
I would raise the combustion chamber a little and would create a space where the ashes you're ready to pick up, but the embers could slip in and do not participate in the combustion.
Max I agree with you, the top loading is very convenient as it is comfortable configuration j-tube.
However, in my opinion, it must also take into account that the heat will envelop the entire chamber supply wood that I fear will begin to burn before the force of gravity to push down with the result that if you open the door the flames go out
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Post by Vortex on Nov 14, 2015 6:41:37 GMT -8
If that's what your after, why not raise the firebox up and put the down draught below the firebox floor level? That's what I did in my stove, so it would be at a convenient height for fuel loading and viewing but not so I'd end up with all the heat high up in the stove.
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Post by satamax on Nov 14, 2015 7:01:07 GMT -8
Sorry Trev, can't quite picture that.
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Post by Vortex on Nov 14, 2015 10:40:55 GMT -8
Sorry Max. What I was trying to suggest was having the bottom of your down draught channel/bell/exit out the barrel below the level of your firebox. So your firebox is at a good height to load/clean out/see the fire, but not create the situation where all the heat is high up in the room and the floor is cold. For example, X is the firebox, and the dotted line is the flue path. Hope that's clearer.
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Post by satamax on Feb 21, 2016 11:46:39 GMT -8
Thanks Trev. Well, lately, i've been arguing with F styles. But, there's some good ideas in his stove www.permies.com/forums/posts/list/80/52316#443308 It's not far from where i'm trying to head. Would be intresting to have a testo sniffing this one. Still, it would be intresting to implement it with a port! Instead of being a J tube. |
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Post by Vortex on Feb 22, 2016 11:30:51 GMT -8
Hey Max,
Thanks for posting the link to that thread. I hadn't seen it, I don't go on Permies much, I find it bit conservative, prefer it here.
It's an interesting stove. It works much as I suspected it would, but the draw is better, it must have a good chimney. The fact it isn't clogging up the burn tunnel or hanging up the wood and going out is very promising. Also the lack of any noticeable soot in the whole system tells us it's burning clean.
I can't see a port and riser instead of a round burn tunnel and riser is going to make a lot of difference to it.
Only down side I can see is it's no good for fire gazing.
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mudder
Junior Member
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Post by mudder on Mar 1, 2016 16:53:54 GMT -8
could it be a hybrid of the two, j and batch? what if, you had a typical j tube and added a port, and p channel, at the beginning of the burn tunnel. modify the feed tube to be larger(in diameter) with the bottom set deeper than the burn tunnel/port. fire could flow up and threw port without worry about the ashes plugging it up. put the main air inlet at the bottom front of feed tube and cap off the top. or maybe you wouldnt even need the port and p channel with the burn tunnel? which raises the question, are there j tubes with p channels in the riser/tunnel? sorry if i ask stupid questions.  |
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Post by satamax on Mar 1, 2016 22:26:59 GMT -8
You don't ask stupid questions.
Your idea about rising the height of the port is a clever one. Thought, it raises the height isue again. But i didn't think of this, and i thank you for having this idea. This is a very good one.
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mudder
Junior Member
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Post by mudder on Mar 5, 2016 4:17:05 GMT -8
thanks satamax. im no scientist, so some just mite seem that way at times. haha at least after i hear the answer. |
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mudder
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Post by mudder on Mar 5, 2016 4:22:04 GMT -8
so, what about a horizontal port, if height is an issue?
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Post by satamax on Mar 5, 2016 5:13:44 GMT -8
so, what about a horizontal port, if height is an issue? Not Daft either. But no, in the actual configuration. With a vertical heat riser, the horizontal slot would make the ram horns go up and down. So that's no good. But if the heat riser was a L, it could be done. |
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Post by Vortex on Mar 5, 2016 9:42:42 GMT -8
I've been wondering what an X shaped port would behave like. Would it give two 45 degree angled rams horns? If so it would give excellent mixing.
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Post by satamax on Mar 5, 2016 11:25:59 GMT -8
May be Trevor. I'm dubious, may be it would fight with a round riser. The beauty of the round riser and vertical slot, is that they work together.
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Post by luddite on Mar 25, 2016 7:02:49 GMT -8
Thanks Trev. Well, lately, i've been arguing with F styles. But, there's some good ideas in his stove www.permies.com/forums/posts/list/80/52316#443308 It's not far from where i'm trying to head. Would be intresting to have a testo sniffing this one. Still, it would be intresting to implement it with a port! Instead of being a J tube. Thanks for the post, I may never have found it. This may be a much easier option for a retrofit. Now I can think some more...... whoops I left this in the wrong place too. was intended for "attempt to retrofit j-tube" thread |
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Post by satamax on Mar 25, 2016 10:19:47 GMT -8
No worries Luddite.
I don't have time to test this one. And i only have F Styles's advice so far. So, you are quite welcome to share your discoveries about this type of rocket here.
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