UDS intake pipe diameter
- Thread starter Freddy j
- Start date
Mine are 1", I believe most people use 3/4". One intake is probably not enough - I have 3, and usually shut one down once the pit is going and have one wide open and the other I adjust with a ball valve. I normally cook at higher heat - usually around 300. It's probably worth mentioning that my exhaust is 2" pipe with an elbow (always open), since exhaust figures in to air flow & pit temps.
Kloogee
Full Fledged Farker
I think you'll find there are a million different combinations different people have had success with. From my reading on the forum, I think the majority of people have gone with 3 intakes of 3/4". That is what I went with and so far so good for me.
Good luck with your project. Please make sure to share pics when you finish.
Good luck with your project. Please make sure to share pics when you finish.
pal251
Full Fledged Farker
I have 4 3/4 pipes. One has a ball valve and the others have caps. Only used it a couple times but if i remember right the last time it stayed at 250 exactly with just the ball valve being open. If I come across any more ball valves I'm gonna replace the nipple caps with it
ITBFQ
is Blowin Smoke!
If you're going to build a UDS, you absolutely have to read the UDS thread - you will learn a TON. And, don't over complicate it. The KISS principle applies here.
Carbon
is Blowin Smoke!
With four-3/4" clear openings I can easily reach 350°F, faster with more lit coals to start out with if that's where you want it to go.
Garrett
Babbling Farker
I have 1 3" intake that I made a makeshift daisy wheel out of. Works great, I can cook as low as 225 and up to 450 with steady temps.
Freddy j
is one Smokin' Farker
conns79
Found some matches.
Just finished mine a couple of weeks ago, and I went with 3-3/4, 2 caps and 1 ball valve. With 2 capped, and the ball valve open, I was holding steady at 225 with an outside temp of 20. With 2 open, I was at 325 and it was still slowly rising before I capped it.
Bludawg
somebody shut me the fark up.
I have 3 X 3/4" 2 nipples and one ball valve, I am about to build a new one with 1 3" intake.
Mark
somebody shut me the fark up.
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foam2
Full Fledged Farker
with the vent at the bottom I think you may have some issues with ash clogging up your intake especially during long cooks.
J-Rod
is Blowin Smoke!
One 1-1/2" intake with draft pipe, ball valve up high and easy to reach. I can reach 350* easy, run it half open it'll cruise 275* for hours, and my fire burns evenly. No need for 3+ separate intakes IMO, not to mention capped ones mounted down low just mean bending over which is a pain in the ass especially if your smoker is in a tight area. Like others said keep it simple man.
Garrett
Babbling Farker
PM me and I will be glad to make one up and send it to you.
Neonnblack
Full Fledged Farker
i use four holes. One is 1 1/4. the rest i took a grinder to and they are roughly 1 1/2x1 1/2 in weird shapes. It works for me.
Crazy Harry
is One Chatty Farker
I use 2" intake and exhaust, I don't like to bend down to adjust either.
caliking
is Blowin Smoke!
This is what apparently gives the PBC some of its oomph if you have been following some of the recent threads - a single 3"-ish intake.
Mark
somebody shut me the fark up.
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Nope. Never. Why? I use a "diffuser plate" between the bottom and the burn basket.
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