Besides just the kind of grill you will be working with, There are many other facets that will affect how long your pellets will last with your pellet grill. Nevertheless, a wood pellet grill like a Pit Boss pellet grill or on the list of Timberline ranges from Traeger grills https://andersonqhwyg.magicianwiki.com/1836445/a_simple_key_for_how_long_does_a_20lb_bag_of_pellets_last_unveiled