I'm curious how heat transfers between the heating element in my electric oven and the air in the oven. Say when I first turn on my oven the air is at room temperature (say 70F) and the surface temperature of the heating coil is at say 500F. After some time passes, the air in the oven rises to 350F. Does the surface of the heating coil remain at 500F or does it change with the ambient conditions? And a related question. Is the maximum temperature an oven can reach determined by the heating coil, or the insulation of the exterior. Suppose I was able to insulate my oven so well that no heat could escape to the outside air (hypothetically) . Would the heating coil continue to raise the air temperature until it melted? Or would something else limit the heating. Any thoughts would be appreciated! Thanks!