im on my phone so please forgive my wriring. i have the vacuum sensor jumped to no better performance. on sunflower with all other settings the same it can bairly maintain a flame within the diamond. with the suggestion of pushing the pellets in i was just able to get one bag in the hopper. i have no oak. i can not tell you how many bags a day it uses as i can not afford to live here untill i get this working.