I just got hold of an old redwood incubator, but it is getting too hot at the bottom and cold at the top. I would so like to see the inside of one that someone might have. Mine appears to be homemade and very old. It has the heat source, 2 ceramic wire wrapped coils on the bottom, 2 waffers and thermostat at top, places to slide 5 racks in, but the bottom on is only about 1/12" above heaters. Is it supposed to have some sort of rack in the bottom to catch the chicks and deflect the heat so it will be evenly distributed? I cant find anyone with one or knows anything about them, help , it have baked my eggs!