I am soon going to start building me a UDS, i have been given a 55 gallon drum that has a removable lid. i know i want two cooking grates and i am going to try to find a 18" to 20" pizza pan or something to make into a heat diffuser. as far as mounting the grates and diffuser i intend on using some strip shelving brackets to make everything adjustable. as far as the charcoal basket i am going to use some expanded metal and have someone weld it to an ash catcher. I am pretty confident on how i want and need things to be done BUT..... i am not sure about the air intakes and the exhaust vents. i see that most builds on here have 3 air intakes with one of them having a ball valve and the rest are capped off. i am just trying to figure out why only one intake is used?
i will be posting pics of the build process. and if i get time i may do Autocad drawings and .pdfs of my build design.
any and all help,tips, and information is greatly appreciated.
thanks to all in advance