On the Advance the slide plate is on the left when you look at the back of the stove, when you remove the cover that has a wing nut and the fines collect in there, turn the stove on then shut it off when the slide plate opens with a screw driver easily pry the plate out, I pulled mine after burning 24/7 starting in Sept it was clean a little discolored, but the modification worked and I never got any smoke again, and I let the hopper go low on purpose, So far so good.