Do to all kinds of crazy shipping problems and ebay seller I am getting more eggs then I wanted and about 3 weeks late. My broody GLW will hatch out the eggs that are under her on the 10th of this month. She will be sitting for about 6 weeks after these eggs hatch. So the last thing I want to do is give her more eggs. None of my other hens are broody right now so my last resort is to make a incubator. I was wondering what is the bare minimum that I need to have an effective incubator. I was wondering if you really need a fan. I have a styrofoam cooler and my thoguht was if I put that heat lamp to where it keeps a constant temp, put a pan of water in the bottom with a screen over it for the eggs to set on, and a funnel with a tube attached to the bottom to fill up the pan of water without having to lift the lid, would this work. I guess this would be considered a still air incubator. Will this work or not?