Enter the iron box.

No screws,

Screws,

Back panel removed,

All the parts,

Heating element,

Dial mechanism,

For more epic teardowns, where they actually explain what you are looking at and how it works, checkout awesome YouTube channels like EEVBlog and Mike’s Electric Stuff. They take apart and sometimes repair epic things like flight recorders, defibrillators, X-Ray machines, POS pin pads, photocopiers, and phonebooths.