Hi there and welcome!
Dave has given you a ton of great info.
If I were you I would get a 3 inch hole saw (3 inch fits duct joints like in Dave's post) and I would cut a 3 inch hole in the left side of the smoker to set it up for a mailbox modification much like Dave's setup.
I would then move to using the A-Maze-N Pellet Smoker (
AMNPS) tray with pellets (or dust form pellets) the same as Dave shows with his
AMNPS picture that uses dust he makes from pellets.
You might be a little apprehensive about doing this and I understand, its how all of us progress and evolve eventually :)
The reason this is being suggested and spoken about is because using the
AMNPS with pellets produces perfect Thin Blue Smoke (TBS) for up to 12 hours without any fussing with it. Also a 40 pound bag of pellets lasts forever!
If you get the proper setup with the
AMNPS + pellets, an electric smoker, and a multi probe wireless thermometer, you can truly set and forget. Also it produces perfect smoke so no fighting with that!
Imagine smoking a 17 pound brisket for about 19 hours over night. You put it in the day before at like 5pm and let it start going with perfect smoke setup to go for 12 hours. You dont babysit it and you go to bed that night and wake up the next day. At like noon that next day you can pull the brisket off, wrap it with foil and towels and have a piping hot brisket ready for 5pm dinner :)
Notice I didnt mention messing with wood, smoke, fire, temp, etc. You can do a 17-19 hr smoke and sleep through most of it and be 100% confident it will come out amazing!!!
Well once you figure out your setup, your smoke process, and do a few smokes to work out the kinks it will come out amazing haha :)
I hope all this info helps :)