If you want to smoke your burger patties in this vertical pellet smoker, preheat the machine to approximately 400 - 425 degrees. Carefully place the patties on a rack, close the smoker and let your burgers smoke until they get a little sweaty - it takes about 8 - 10 minutes. Now flip your burgers and let them cook evenly on the other side. If you're using a probe, the beef patties should show at least 160 degrees inside to be properly cooked. Some people like to heat the smoker to maximum just before the burgers are done - this will create a crunchy crust around the burger, but be careful not to let the meat dry out.