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Old 04-22-2013, 02:03 PM   #10805
Found some matches.
lehdeman's Avatar
Join Date: 04-12-13
Location: St Charles, MO

Originally Posted by gaspipe1 View Post
I just made some mods to my UDS. I had a normal 3 intake system with 1 of them being a ball valve. I used the bung hole as the exhaust. For a while I been smoking at 225* and all was well. Until I tried getting my temps higher and was having a really tough time. So I added a 4th intake. Went to HD and found a threaded pipe, think it was 2" diam. and cap. I also screwed a 4" length exhaust with a cap to the bung hole in the lid.
Last night I spatchcocked 2 chickens and had that baby at 375-400 with no issues at all. Was no problem with the big intake and the ball valve at about 1/2 way.

Anyone who is is building an UDS right now I wud highly recommend adding this larger 4th intake and use a draft.

One more thought regarding a water pan. I will never use one again. 2 weeks ago I made some ribs (3 BB racks). Took the membrane off and used a nice coating of rub on them. Smoked them at 275-300* (I think.. so pissed I forgot) bone down for 2 hours, then added some more rub and flipped bone side up for 1 hour. They came out soo good, prob best I've ever made. My point to this is that the temps got away from me and ran too high. So i capped the intakes and exhaust. After 5 min when I reopened them i saw water in the caps and on the pipes. At that point I made up my mind that I will never need a water pan in this smoker. The drum holds moister so well.

So cliff notes: No water pan and add a 4th big arse intake

I'm wondering if you could have gotten a pretty similar result from an 8" stack... There seems to be a lot of people talking about tall stacks causing high temps. I have mine at 8 inches with the normal 3 intakes. I'll test out my theory once I get it going.
lehdeman -"The things that come to those who wait, are things left by those who don't."
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