So, if I'm reading the specs correctly... I could plug a light into it, and set it for 100*F. And it would hold that temp inside the box within +/- 1* of that temp? Do you realize how stupid simple it would be to build an incubator with this? Not that I need to... I already have 2. But... why would anyone buy an incubator, when they could MacGuyver one... and not even need to pick up a screwdriver??? I'm loving it!
I've never done exactly what your doing and I'm not familiar with the components...except the space heater. I can tell you that your gonna have a hard time hatching eggs because of over shoot. by the time the element cools off the temp will rise a few degrees over set point. I had to choke mine down to 150 watts.