Disregard my last post!

I found a post by Emily with the actual temps for incubation;

Quote Originally Posted by mlededee View Post
Turn the temps down in your incubator, as 80 is too hot for cresteds. 78 should be about the max temp for incubation. Higher temps cause them to develop and hatch too quickly which can cause serious problems. Lower temps let them develop at a more regular pace and hatch out as larger and healthier babies. Even a few degrees will make a huge difference.

Generally speaking, room temperature is fine for incubating cresteds, so you don't need a heated incubator at all. Even if your temps get into the mid to upper 60s during the cooler months the eggs will be fine--they will just take longer to hatch (which is not a bad thing at all).

dr del