THIS CAN BE THE START OF A VERY LUCRATIVE ENTERPRISE, producing approximately 48 chickens a month in a very limited space. Put approximately 48 chicks (day old) from a hatchery or incubator into the brooder for warmth, feed, and water. After four weeks, move 24 birds into each grow-off pen and put 48 new chicks in the brooder. That’s 96 birds kept comfortably in less than 11 square ft. 49 inches tall. Includes one brooder, two expanded grow-off pens, brooder base, and casters. The 0703 Model only comes with one heating unit. Grow Off Pens do not come with heaters.