I'm not new to building incubators.
Need to get working on one soon out of a small stand up Pepsi cooler I picked up.
Hoping sometime to then turn it into a hatcher and make one a little bigger then yours or thinking about a walk in one.
When they get that size or really half that size circulation has been a pain for me to keep even throughout.
I've been over thinking it all I'm sure but hoping to get it right so don't have to do too much modifying after its together.
Interesting thread I've been trying to find any and all info on homemade big incubators but not a lot out there.
Curious how yours works. I've had trouble with the top to bottom with the racks and eggs in it. Really curious if your stacked trays work.