P-7
That good information, John. I often wondered, with all the extra insulation, if the self-cleaning ovens had better performance.
My mom's first self-cleaning oven was a GE P7. She was thrilled to not have to clean the oven again. It was the model with the small oven over the burners and the large bottom oven that had the microwave, It was a 1974 model or there about. My mom, I think, loved the self-cleaning feature even as much, if not more than, the microwave feature.
I am like you, John. I would rather flip a lever and let the oven clean itself, and avoid the dangerous chemicals (the oven cleaners did not use enzymes back then, but brute force chemicals), and the awful mess.