Reverse flow UDS?

Matt_A · 09-07-2011, 10:38 AM

Has any one ever experimented with building a reverse flow UDS?

Bbq Bubba · 09-07-2011, 10:50 AM

like putting the charcoal on the lid and the food in the bottom of the barrell?

deguerre · 09-07-2011, 10:56 AM

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.

Phubar · 09-07-2011, 11:01 AM

I'm guessing your Phood will stay raw.

DirtyDirty00 · 09-07-2011, 11:03 AM

ya this doesnt seem possible to me...

Carbon · 09-07-2011, 11:13 AM

You could route the heat and smoke through a vertical maze.

Matt_A · 09-07-2011, 11:32 AM

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.

Lake Dogs · 09-07-2011, 11:49 AM

Down arrows? Heat rises... Even if the draw has a fan or something, I'm not certain how well this would work.....

ezoliver · 09-07-2011, 11:54 AM

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...

Warthog · 09-07-2011, 11:57 AM

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.

Matt_A · 09-07-2011, 12:00 PM

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.

colonel00 · 09-07-2011, 12:04 PM

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.

Teleking · 09-07-2011, 12:05 PM

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.

woodbutcher1 · 09-07-2011, 12:06 PM

Matt,not meaning to get you ticked off,this wheel works,don't try to re-invent it.

bover · 09-07-2011, 12:10 PM

I'm sure the design would work. If the physics were flawed, Backwoods wouldn't sell nearly as many smokers as they do right?

09-07-2011, 10:38 AM	#1
Matt_A is one Smokin' Farker Join Date: 07-19-11 Location: Moore, Oklahoma Downloads: 0 Uploads: 0	Reverse flow UDS? Has any one ever experimented with building a reverse flow UDS? __________________ [B]Matt Armistead[/B]

09-07-2011, 10:50 AM	#2
Bbq Bubba somebody shut me the fark up. Join Date: 05-03-07 Location: New Baltimore, Mi. Downloads: 0 Uploads: 0	like putting the charcoal on the lid and the food in the bottom of the barrell? __________________ Pitmaster @ Lockharts BBQ Beer Snob I cook the best brisket north of Dallas. Get over it. Northern midwest director for OBR www.operationbbqrelief.com

09-07-2011, 10:56 AM	#3
deguerre somebody shut me the fark up. Join Date: 07-15-09 Location: Memphis, TN...Formerly of Decatur, AL Downloads: 0 Uploads: 0	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. __________________ Guerry >^..^< Weber 22 1/2" OTS "Dirty Girl", Weber Performer/Cajun Bandit "Cajun Queen", GOSM "Bubba Q", Maverick et73, RED Thermapen, One Cameron Stove Top "Lazy Girl".It burns sawdust... Avatar by Northwest BBQ!!! If you really care about this place, you'll show some respect for it. Seven Zero notches on my spatula. Join_Us_In_The_Throwdowns_Forum!

09-07-2011, 11:01 AM	#4
Phubar somebody shut me the fark up. Join Date: 04-24-09 Location: Utrecht,The NetherPharkinglands Downloads: 0 Uploads: 0	I'm guessing your Phood will stay raw. __________________ -TG -WGA (3) -UDS (S,M,L) All fueled by Ecobrasa Coco Briquettes Lowland Smokers Dutch BBQ Champion 2011 - 2012 Lowland Smokers Dutch BBQ Champion 2013 Low 'n Slow WGA Ambassador

09-07-2011, 11:03 AM	#5
DirtyDirty00 is one Smokin' Farker Join Date: 07-13-11 Location: Mamaroneck, NY Downloads: 0 Uploads: 0	ya this doesnt seem possible to me... __________________ Smokers: 20x48 Pits by JJ Cinder block smoker Wishlist: 22.5" WSM

09-07-2011, 11:13 AM	#6
Carbon is One Chatty Farker Join Date: 08-24-08 Location: Los Angeles Downloads: 0 Uploads: 0	You could route the heat and smoke through a vertical maze. __________________ ....UDS....Mini-WSM....Midi-WSM....Mod-ECB....22.5-OTG....34"wood fired pizza oven....

09-07-2011, 11:32 AM	#7
Matt_A is one Smokin' Farker Join Date: 07-19-11 Location: Moore, Oklahoma Downloads: 0 Uploads: 0	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. __________________ [B]Matt Armistead[/B]

09-07-2011, 11:49 AM	#8
Lake Dogs Babbling Farker Join Date: 07-14-09 Location: Lake Sinclair, GA Downloads: 0 Uploads: 0	Down arrows? Heat rises... Even if the draw has a fan or something, I'm not certain how well this would work..... __________________ Hance - Lake Dogs Cooking Team - MiM/MBN/GBA CBJ and comp cook Lake Sinclair, GA (strategically about an hour from everywhere)

09-07-2011, 11:54 AM	#9
ezoliver Got Wood. Join Date: 08-22-11 Location: Parker, CO Downloads: 0 Uploads: 0	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... __________________ Eric O. Blog - [URL="http://smokeontherockies.com/"]Smoke On The Rockies[/URL] Owner - [URL="http://coloradobbqsupply.com/"]Colorado BBQ Supply[/URL]

09-07-2011, 11:57 AM	#10
Warthog is one Smokin' Farker Join Date: 10-20-09 Location: Cliffwood Beach, NJ Downloads: 0 Uploads: 0	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. __________________ "Two Hungry Hogs" bbq team. UDS CharGriller w/SFB Weber 3(1987)

09-07-2011, 12:00 PM	#11
Matt_A is one Smokin' Farker Join Date: 07-19-11 Location: Moore, Oklahoma Downloads: 0 Uploads: 0	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. __________________ [B]Matt Armistead[/B]

09-07-2011, 12:04 PM	#12
colonel00 Babbling Farker Join Date: 06-03-10 Location: Shawnee, KS Downloads: 0 Uploads: 0	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. __________________ Brad Proud owner of the PentaZero WWWWFBBQADD 0 out of 1 members found this post helpful

09-07-2011, 12:05 PM	#13
Teleking is one Smokin' Farker Join Date: 11-10-08 Location: Maine Downloads: 0 Uploads: 0	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.

09-07-2011, 12:06 PM	#14
woodbutcher1 Full Fledged Farker Join Date: 04-04-10 Location: Shelby Twp. Macomb Co. SE Michigan Downloads: 0 Uploads: 0	Matt,not meaning to get you ticked off,this wheel works,don't try to re-invent it. __________________ leonard ----------------- 22.5" Weber------OTS 18.5" Weber------OTS 14" Weber---- Smokey Joe 55 Gal. UDS 30 Gal. UDS 16 Gal. Mini. UDS Maverick ET-732 & iQue - 110 Last edited by woodbutcher1; 09-07-2011 at 03:52 PM.. Reason: spelling

09-07-2011, 12:10 PM	#15
bover is one Smokin' Farker Join Date: 01-19-11 Location: Lee's Summit, MO Downloads: 0 Uploads: 0	I'm sure the design would work. If the physics were flawed, Backwoods wouldn't sell nearly as many smokers as they do right? __________________ "If I were just a bit more humble, I'd be perfect"

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
reverse flow	mjancel	Q-talk	15	10-05-2010 08:04 AM
Reverse Flow?	Smokin_Joe	Competition BBQ	8	04-15-2010 02:41 PM
Reverse flow?	Mo-Dave	Q-talk	13	01-02-2009 12:52 PM
Reverse flow?	Norcoredneck	Q-talk	12	11-23-2008 10:28 AM
Reverse flow	Rub-A-Dub	Q-talk	6	12-16-2007 05:14 PM