I just use a heat lamp, but I also put a thermometer at the warm end and the cool end. I start the warm end at 95-100 farenheit and the cool end about 20 degrees cooler. Watch the chicks. They'll let you know if they're hot or cold. If they're hot, they'll stretch out or pant. If they're cold they'll make a big pile and climb all over each other.Do you think I'll need both the heating pad and the red heat lamp? Maybe if the lamp is sitting on top of the lid it won't be too hot with the heating pad. I was thinking of putting them on one side together so the other is completely cool.