I use 55 gallon drum on there side. i cut a rectangle the length of the barrel and about a foot wide. i start the fire and keep choking it out threw out the day. i have a large cherry orchard that is glad to have me take there wood. i got my idea from this video. it takes me about 18 hours to fill my drum, but it is a lot of charcoal afterwards
https://www.youtube.com/watch?v=vAJt5tGwNVM