I do have to give you a warning about oven cleaner - that stuff can be downright dangerous. I used it for cleaning when I rebuilt a tranny some years ago - about 0200 I asked my wife to take me to the emergency room - could hardly breathe and had chest pains. Couple hours on O2, $50 from me and about $1500 from my med insurance later - no further problems and I will NEVER use oven cleaner again. A lady we knew lost most of her speaking ability after burning her vocal cords using it actually cleaning an oven.

I really like the idea of heat and scraping