I haven't seen your firebox, but nothing too special about cooking with wood. Start a fire and once it's going keep adding wood. Keep it almost full all the time. Not jam packed, but almost full. The smaller you split your wood, the faster it'll cook. An even consistent fire is best. Adding two pieces every 3 minutes is better than 4 pieces every six minutes. Burning a variety of wood is no problem. Minimize time with the door open. If you have two doors, only open one at any time when adding wood. Don't forget defoamer.

Hope that helps a little.