Nice work, Michigan! I have a similar sized 'bator and it has ~8 holes on the back side. Some toward the bottom for cool air to flow in, some near the top for heat to flow out.
I would want at least one upper hole to encourage ventilation, right now yours traps the hot air at the top (unless you have a fan blowing it back down somehow, the hot air will stay up there).
I have a turner now, but this shows the inside.
I would want at least one upper hole to encourage ventilation, right now yours traps the hot air at the top (unless you have a fan blowing it back down somehow, the hot air will stay up there).
![batorfront.jpg](/proxy.php?image=http%3A%2F%2Fwww.redwrench.com%2F2008%2Fbatorfront.jpg&hash=061024f3bc513406409979ba2155676d)
I have a turner now, but this shows the inside.
![batoropen.jpg](/proxy.php?image=http%3A%2F%2Fwww.redwrench.com%2F2008%2Fbatoropen.jpg&hash=d3289e1d5b8506178111bd722b2487b5)