Project I always wanted to try instead of spending $500. Used a old cell phone charger and spliced it into a pc fan for circulation. Then used reptile heat cable to keep it warm with a thermostat.
https://lh6.googleusercontent.com/-6.../s512/Inc1.jpg
https://lh5.googleusercontent.com/-o.../s241/inc6.jpg
https://lh6.googleusercontent.com/-m.../s241/inc8.jpg
https://lh5.googleusercontent.com/-W.../s241/inc9.jpg
https://lh3.googleusercontent.com/-X...s512/inc10.jpg
https://lh3.googleusercontent.com/-Y...s512/inc11.jpg
https://lh6.googleusercontent.com/-f...s241/inc12.jpg
I will be using a thermostat with this but wanted something inexpensive. Was going to use heat tape but I had the heat cable so figured I would try it out. We will see.