That L-shaped rod is for the wafer thermostat, to adjust it from the outside. The PVC has an elbow that comes through the other side to turn the eggs.
The pine siding is not sealed on the inside except at the joints with waterproof caulk. You certainly could, though. I will have to seal the underside of the lid before we use it again because in the humidity, one of the joints tended to buckle. Once it dried out after the last use, it straightened out again.
That is a sheet of plexiglass, and it's two sheets, put together with 100% clear silicone. It helps alot with heat loss. It was originally a single sheet, but we had to put a cover on the window or it lost too much heat just because of the thin plexiglass.
You know, that wooden thing was something the deceased previous owner of my house had in his woodworking supplies. His family left tons of stuff and it just holds a PVC pipe or a dowel of the proper size perfectly. I have no idea the real purpose of it.
I'm thinking the external dimensions were about 22" square, maybe slightly more. It's only about 7" high. The red sponge holders were just a storage system for misc hardware that was on the wall in our bsmt when we moved in. It has a bracket that you screw into the wall and the red container hangs on it. You can cut the plastic bracket to any size you want. I use one in a coop for an oyster shell holder, too. Very versatile.
That aluminum tray is for easy cleanup. It is one that is made to go in the bottom of an oven and you can buy them just about any grocery store cheap. and yep, for hatching, we take out the turner by removing the exterior elbow/handle and the pipe slides out. Then we place the eggs on the pan. You really need to be sure that chicks can't reach the lightbulb, though. They go for the worst possible thing, just like kids!
The camera is set up to view through the hole left when you remove the turner handle.
My DH designed the entire thing on his own. We did move the thermostat to where it is now-it had been on the opposite wall, but now it's by the sponges and works better.
Glad you like it. Take the ideas and run with them!
****oh, thanks about the wallpaper! I loved it for my little cottage in the woods. I haven't tired of it yet.