I love my off sets. I start out with about 2 pounds of lump coal. Once it's lit, I switch to wood and do not go back to the lump. I can run 250-300* with ease. As far as wood consumption, it depends on what wood I am using. Some woods burn hotter and faster than others.
-Captain of Barkin Dawgs BBQ
-KCBS Judge #21924
-36" Kingfisher Combo
-New Braunfels Bandera (rescued)
-Weber 22.5" Kettle (rescued)
-A homemade trailer cooker
-Concession trailer nicknamed "The Dawg House"