For poultry, especially chicks, damly gas brooders are warmers made specifically for them. They heat their brooding quarters with gas as a fuel source, which helps to provide a comfortable environment for the newborn chicks. Up to 2,000 chicks can be kept in these brooders with ease since they are effective at keeping the temperature at a constant level for the best possible growth and health of the young. Up to 3,000 chicks can be kept in a typical brooder, which is circular and has plywood covering the sides.Note: You are unable to use biogas. Please purchase a thermometer to monitor the temperature.