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Post by satamax on Jan 18, 2017 1:36:42 GMT -8
Matt, here you go. Simple batch, exept that the firebox is vertical.  Second version exploded view, there's a chamber behind the firebox, with two ports, one entering it, one going to the heat riser. A bit like Adiel and Shilo's stuff.  Third version, this chamber is open to the firebox, so embers fall into it, but can't block the port wich is further. Several views, and with the firebox top lid open.    I noticed that if well made, opening the lid could also block the P channel, sucking a smidge more air from the firebox, to have less smoke when opening it. "theoreticaly"  |
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Post by Vortex on Jan 18, 2017 4:08:33 GMT -8
Max, You could make that lid like a see-saw - with the back half inside the top of a tall narrow little chamber in front of the port - so when you lift the lid of the firebox the back half drops down inside opening a bypass at the top of that chamber into the flue.
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Post by matthewwalker on Jan 18, 2017 6:16:51 GMT -8
Thanks for posting the views Max, I appreciate it. It is interesting for sure. What are your goals? Why the departure from tested designs?
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Post by satamax on Jan 18, 2017 6:32:44 GMT -8
I dont quite picture it. But i'll keep this in mind.
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Post by satamax on Jan 18, 2017 6:38:17 GMT -8
Thanks for posting the views Max, I appreciate it. It is interesting for sure. What are your goals? Why the departure from tested designs? Matt, just that i hate kneeling to load the firebox. So a vertical one makes sense. And, with small systems, you can have the heat riser reach bellow the cooktop, And have a Nice gap. Without having to lay flat on your tummy to load the beast. |
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Post by matthewwalker on Jan 18, 2017 6:47:57 GMT -8
I understand those goals, I agree. I shrunk my riserless down to 18" overall height so I could position it above the oven for the same reasons. I have been spending this winter with a fire at hip height, and you are right. It is nice!
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Post by DCish on Jan 18, 2017 7:26:49 GMT -8
Matt, have you posted any pics of that elevated batch? I'd be curious to see that configuration.
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Post by matthewwalker on Jan 18, 2017 7:52:05 GMT -8
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Post by DCish on Jan 21, 2017 20:34:09 GMT -8
My device has been glitchy lately and I couldn't see the pics when I was reading the thread earlier. The visuals sure make a difference. The fiber board construction cracked me up... talk about the epitome of well-insulated, that's totally sweet! How well is it holding up to abrasion in the firebox?
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Post by matthewwalker on Jan 22, 2017 8:09:59 GMT -8
Pretty well! I'm burning daily, and it's going to easily make it through the season. I will probably just cut sacrificial panels for the sides as needed, but it's surprisingly durable. I have a new way of looking at problems like that....instead of saying "will the wood abrade the side in a way that harms the stove?" I now say, "I'm gonna try to use this firewood to rub a hole in that board." Takes a long damn time.
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Post by DCish on Jan 22, 2017 13:08:35 GMT -8
Sweet, very good to know!
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Post by jkirk3279 on Mar 9, 2017 12:45:23 GMT -8
OK, it's a magazine L tube. Clever idea, but not a batch. Check f styles posts at permies, for something similar. I think copying Styles' mag-rocket would be better, carefully following his riser construction, airtight magazine, and low level air path. Okay, this sounds like the Sedore Stove. The Sedore is a cross-draft gasifier. Wood is loaded from the top. Exhaust gasses rise to the top, which heats the wood but it can't burn because the oxygen was burned up at floor level. The exhaust port is behind a cast iron baffle on the side. The exhaust gasses rise, cool, fall, and get sucked out under the baffle. The fuel can't run away because oxygen is supplied only at the bottom. I haven't been able to tinker with a Sedore, but I imagine it might have a heat-activated damper to close download the air supply as the fire gets hotter. |
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Post by patamos on Mar 10, 2017 16:39:11 GMT -8
Sata, I've been farting around with my 6" J in my shop. I built the feed tube at 7" square in the first place and lengthened the heat riser 1' to see how that played out. Then more recently i added 4" to the height of the feed tube to 18" tall. I used a glass plate on the front panel for viewing and quick heat delivery. And placed a lid with about 30% opening for air intake above the front glass pane. This gives a good air wash and makes smaller reloads easier. The idea was to minimize tending, worry less about load hang ups and maybe let the burn creep up the feed tube for more immediate forward heat and viewing fun. And it is al working fine... One thing i didn't do was raise the intake height of the P-plate above it's existing 14" height. But I soon discovered that when the flames do lick up the fuel load, they are mostly sucked down into the P-channel. This effect is diminished somewhat when i remove the top lid, so it likely has much to do with the primary air trajectory. Anyway, i know the batch box is a different beast and the variables are many… but perhaps the P-channel can be configured to help reduce or eliminate smoke back  |
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Post by satamax on Mar 11, 2017 1:13:04 GMT -8
Good to hear this. Thanks Patamos. Any pics?
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Post by patamos on Mar 12, 2017 9:38:18 GMT -8
I'll see about making a little video this thread has my head spinning... woke up (too) early this morning wondering about a 9" x 9" x 18" tall vertical feed chamber... into a 6" CSA short J-feed burn tunnel with P-plate, trip wire etc... into a 2' (?) tall half riser... into a second half riser ala Matt's split riser set up... This would bring the whole set up down to cooking height, could solve the coles-blocking-port issue and maybe stabilize the burn somewhat AND (big one here) eliminate the cost of fabricating a door. Then again, it may not work at all  Hope this doesn't feel like a thread-jack Just tossing ideas into the mix... |
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