Good I have free access to quite large stash oak and mesquite. i will go and retrieve some on my way to work and do my burn tomorrow night.
 
Haven't been around in a while, but I've got my second cook going right now. Two butts and a brisket over hickory with mesquite chips.
 
Except mine goes up the side (another big belly mod). I dont think i have quite enough exhaust on that one to get the proper draft. :-D
What you will find with UDS builds is that you don't have enough air flow at low temps to allow draft action like on a fireplace etc. A UDS is a demonstration of convection with an air exchange. That's why some builds just have a bunch of 1/2" holes around the lid and work fine. A stack on the UDS is all cosmetic and this can be proven by stabilizing a UDS at temp and then unscrewing or removing the stack- no decrease in temp of the UDS. I have had as much as 12' of 6" exhaust with no effect.
I have experimented with the high intake and found two things.
Every 90 bend and length of pipe requires more diameter to achieve the same airflow at the bottom of the barrel. While not scientific in my approach I found that a 1" intake hole flowed the same as an extended 1 1/2" intake with a 90 and 20" of pipe.
The 2nd thing I found was that the closer I raised the intake opening to the top edge(lid) of the barrel, the more difficult it was to control the temp or make minor adjustments. Also, I found that gusting breezes caused me heartburn. A finickety barrel is no fun.
From all of my experimenting I now go with a 2" ID exhaust and a 2" intake with my favorite control being the Primo or BGE slider style system. The next one I do will be a BGE slide turned 90 degrees and attach a control cable (lawnmower throttle) to the top of the barrel ala fat man mode. The guys with their little pipes hanging out around the barrel are novice builders who have something that may work but they don't know why. It was interesting to see Myrons intake on his trash can and I'm sure this will catch on like his muff tins. The reason he has this single intake is because it works and he has had the boys experiment to find this.
Back to work LOL...
 
Good I have free access to quite large stash oak and mesquite. i will go and retrieve some on my way to work and do my burn tomorrow night.

Adding air from an air compressor or a vacuum is fun. I have a 3' steel extension on my blowgun and I stick that in the intake. It is easy to "rosey up" any stubborn spots. Oh hell- its just fun!! Many times the burn leaves the bottom untouched. Make sure you get to it while you have the fire going.
 
I just finished building a new charcoal basket from 3/4" x #9 expanded metal .
The grate is an 18 1/2" WSM charcoal grate with three 1 1/2" x 1/2 bolt legs.
Neither basket is attached. They both sit on the grate between the bolts and the outer ring.

For shorter cooks I use the 4 3/4" high charcoal ring from the WSM.
4WSMRing.jpg


For longer cooks I will use the 8 1/4" high expanded metal version.
4Basket.jpg


The original post of the build is #5041

For anyone interested there is also separate thread on this build
http://www.bbq-brethren.com/forum/showthread.php?t=78156
 
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New to the build and i am about 80% done with gathering up all the parts i need. But have a few problems. Yes i have read the entire thread.

1. I bought a long stem thermometer from WalMart and tested the accuracy. its way off. So i know alot of you like a particular long stem thermometer can someone let me know where i can get one, i live in AZ so it might have to be an online order.

2. I am going to do the magnet route, i want to drill three holes, where one will be a ball valve, for the two holes that will be covered by magnets i cant decide between 1 inch holes or 3/4 holes.

Hey thanks in advance everyone. Ill be posting pictures as soon as i get all my supplies and all questions i need answered.
 
New to the build and i am about 80% done with gathering up all the parts i need. But have a few problems. Yes i have read the entire thread.

1. I bought a long stem thermometer from WalMart and tested the accuracy. its way off. So i know alot of you like a particular long stem thermometer can someone let me know where i can get one, i live in AZ so it might have to be an online order.

2. I am going to do the magnet route, i want to drill three holes, where one will be a ball valve, for the two holes that will be covered by magnets i cant decide between 1 inch holes or 3/4 holes.

Congratulations on your first build. Finished mine in October, and I'm doing my second cook right now.


I bought my thermometer off of Amazon, I forget what the price was, but it's an actual barbeque thermometer. Works great.

I'd probably go with the 3/4 inch holes. When installing the nipples I used one inch nipples, which provides three-quarter inch intake.

Happy smoking!
 
Congratulations on your first build. Finished mine in October, and I'm doing my second cook right now.


I bought my thermometer off of Amazon, I forget what the price was, but it's an actual barbeque thermometer. Works great.

I'd probably go with the 3/4 inch holes. When installing the nipples I used one inch nipples, which provides three-quarter inch intake.

Happy smoking!
It doesn't matter how big the hole is- it only matters how much is open. If you are doing Wi. winter smoking then you need more intake. I would do a 2" intake and cover it with a magnet. A 2" hole will allow you to reach in(with a poker) and give your basket a shake in those overnight smokes without opening the lid. It should also allow you to do pizza at high heats. The Walmart thermos are secured by a nut. Turn the round part until you have the proper 212 degrees. Double check it at room temp.
 
I can get some brand new 55 gallon drums, that have a removable lid for 40 bucks. How much more would it cost to build my own??

3n83k03p45Oa5T45P3a2ca9e0866ab54a1ed1.jpg
 
It doesn't matter how big the hole is- it only matters how much is open. If you are doing Wi. winter smoking then you need more intake. I would do a 2" intake and cover it with a magnet. A 2" hole will allow you to reach in(with a poker) and give your basket a shake in those overnight smokes without opening the lid. It should also allow you to do pizza at high heats. The Walmart thermos are secured by a nut. Turn the round part until you have the proper 212 degrees. Double check it at room temp.

*shrug* I was just sharing what works for me.
 
It doesn't matter how big the hole is- it only matters how much is open. If you are doing Wi. winter smoking then you need more intake. I would do a 2" intake and cover it with a magnet. A 2" hole will allow you to reach in(with a poker) and give your basket a shake in those overnight smokes without opening the lid. It should also allow you to do pizza at high heats. The Walmart thermos are secured by a nut. Turn the round part until you have the proper 212 degrees. Double check it at room temp.

I can get some brand new 55 gallon drums, that have a removable lid for 40 bucks. How much more would it cost to build my own??

3n83k03p45Oa5T45P3a2ca9e0866ab54a1ed1.jpg


Depends. When I built mine, I had to buy all the tools (hole saw, various drill bits and whatnot). It also depends on whether or not you're cannibalizing other parts (I also bought the grates) or can get things either cheaply or free.. The hardware itself? A lot also depends on what design you'll be using. Some make the holes and use magnets, others use nipples, caps, and a ball-valve.
 
And here is a pic of my new drum. this is the only pic as when assembly was done i used the too much beer mod:roll:
 
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Finallly got around to making my drum. I've been reading this thread since it only had about 150 pages and have read all of them since. I've also read every other site I could find, so I didn't really have any questions when I fianlly jumped in. I just wanted a simple, decent looking drum that was easy to operate. Anyway, he's the final product.

f60ffef2.jpg


Loaded up with 20 lbs of butt.
a280b7b6.jpg


Flipped half way through.
0de74b14.jpg


Pulled and ready to eat!!!
fb1414d8.jpg


If you are looking to build one and have trouble locating expanded metal, Go to the closet organizer section in Home Depot and pick up one of these (11 bucks) it measures 16"x16" and is 10" deep. Just have to burn off the paint.
e5b5722c.jpg


I realized I had galvanized washers and replaced them prior to use.

Hey i REALLY like those smoke stacks..where did you get those or how did you make them? thanks
 
So where can i find some expanded metal that is not 24x12 or 24x24 like at the lowes and HD by my house. Is there a place i can get to cut me a piece that is about 8x45. please chime in and tell me how you all got your larger pieces of expanded metal and what guage you picked that was not to weak but was still able to bend it into a circle. thanks!!!
 
Novice, check out one of your local metal fabrication shops. They usually have 6 to 8 inch x 48 inch cut offs that are real cheap and the perfect length. And, they are much much heavier metal. I get them around here for free to maybe $6.00. If you get it free, take them a few fatties for lunch break one day and then the cut offs will always be free.
 
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