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Old 09-07-2011, 10:38 AM   #1
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Question Reverse flow UDS?

Has any one ever experimented with building a reverse flow UDS?
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Old 09-07-2011, 10:50 AM   #2
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like putting the charcoal on the lid and the food in the bottom of the barrell?
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Old 09-07-2011, 10:56 AM   #3
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I'm sure if your drum were horizontal and you added an offset firebox it would work, but then it wouldn't exactly be a "UDS"...even if it was ugly.
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Old 09-07-2011, 11:01 AM   #4
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I'm guessing your Phood will stay raw.
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Old 09-07-2011, 11:03 AM   #5
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ya this doesnt seem possible to me...
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Old 09-07-2011, 11:13 AM   #6
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You could route the heat and smoke through a vertical maze.
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Old 09-07-2011, 11:32 AM   #7
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Actually I was thinking about something like this. The cooking cylinder is suspended inside the outer drum, the smoke/heat travel up the space between the cylinders and then down the inside cylinder. The bottom of the inside cylinder also radiates heat from the fire basket.

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Old 09-07-2011, 11:49 AM   #8
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Down arrows? Heat rises... Even if the draw has a fan or something, I'm not certain how well this would work.....
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Old 09-07-2011, 11:54 AM   #9
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I think you would have a really hard time getting hot air to flow down into the inside chamber naturally, I would imagine your fire would go out. You will notice that a true reverse flow smoke the heat never really has to go down, just follows a zigzag pattern up for the most part.

I am sure it would work with a forced air system though...
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Old 09-07-2011, 11:57 AM   #10
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Seems kind of counter to the design of a UDS. To me the UDS acts like a microwave. The direct heat makes everything cook much faster.
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Old 09-07-2011, 12:00 PM   #11
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I've seen commercial reverse-flow vertical cabinet smokers that work quite well without any fan support. As long as you have a draught up the exhaust the heat will go with the air movement.
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Old 09-07-2011, 12:04 PM   #12
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I think it might work. One thing to consider is how much will the heat source actually heat the bottom of the cylinder which could potentially keep the air towards the top stagnant. Give it a shot. If you were closer I would love to help.
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Old 09-07-2011, 12:05 PM   #13
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They make reverse flow cabinet smokers that are square. I believe that Pit Maker Vaults (I think) are designed to operate that way. Same design…just round. The smoke follows the arrows and the heat radiates up from the fire box.
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Old 09-07-2011, 12:06 PM   #14
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Matt,not meaning to get you ticked off,this wheel works,don't try to re-invent it.
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Last edited by woodbutcher1; 09-07-2011 at 03:52 PM.. Reason: spelling
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Old 09-07-2011, 12:10 PM   #15
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I'm sure the design would work. If the physics were flawed, Backwoods wouldn't sell nearly as many smokers as they do right?
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reverse flow smoker, uds build

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