Well, I got my daughter a mini brinsea for Christmas, order some hatching eggs and realize it is difficult to get a good flock started with shipped eggs with a brinsea mini. So, I came across a local advertisement for surplus medical equipment. An incubator, a Fisher Scientific model 665d. I thought what in the heck, I will go look at it.. I came home with this for 80 bucks! Not a circulated incubator but I guess I will run it as still air. Cheaper than my mini brinsea and who knows maybe I will try an ostrich egg! Holding a great temperature for still air but had to look up temperatures in C.