CHUNKS or, better yet in my opinion, are small "logs" made from the smaller branches of a tree (mostly I use apple because the local orchards trim off alot of 1-3" limbs in the fall and you can buy a ton!) I have a log burning pit . I cook mostly with pure wood and can honestly say, I much prefer to cook BBQ that way! To me, the closer I can get to doing it that way, the better I like it. In my opinion again, charcoal is a slight step down from all wood, and electric is miles away. I started on an ECB electric, and it was lame. If you can't have a log burning pit, get a WSM , and use chunks or sticks.