Ummm... Maybe I'm the only one who feels that this in important, but what are you cooking on? A fist sized chunk will be way to much for a small electric like a Masterbuilt, may be just right for a 18.5" WSM, a little light for a 22.5" WSM or UDS, and would be way too light for a large offset.
"Ron Rico, Boss. You can call me Captain Ron..."
The Naked Fatty!
Southern Q Limo Elite Gravity Fed/FEC-100/Memphis Pro SS/PBC/LBGE X 2/SBGE/Mini BGE/Nomad Pellet-matic/Good-One Model 42/WSM X 2/Cookshack Smokette 008/Weber Performer/Saber Cast 500/Weber Kettle X 2/Weber Smokey Joe/WGA/UDS/Coffee Roasting Gasser