so im building a large vertical smoker that will have 4 racks in it. so basically i'm taking the idea of a uds and putting it into a old refridgerator. so how do i keep the drippings from catching on fire? it will have a heat difuser plate with a bunch of holes in it. will that be enough? i thought about a pan but i tried that years ago in a propane bbq( when i did not know better now it is coal or nothing) and that caught on fire. i really dont want a blazing refer in my back yard. i want to do it safe. thanks for the future help. ps uds rocks.