Yeah yeah, cola incubator #40375. Most of the ones I've seen use 11", but since I was running low and have plenty of 3" I decided to give it a try. As it turns out it heats just fine. It went from 70-89 in under an hour and so far there is only a 1 degree difference from the top down without the fan running. Perfect!
http://rockymountainballs.com/wordpr...01/newinc3.jpg