Hmm, when I had birds, the big no-no was using anything with teflon in it. It doesn't take much heat on teflon for it to begin to release toxic chemicals into the air. It's been known to kill birds.
I can't imagine it's any better for the snakes. I have a few teflon things and I rarely used them with the birds around and now that I don't have them anymore, I don't really intend to buy a bunch of teflon again. If it can kill birds, it can't be great for us to breathe either, right?
I'll probably still use my waffle maker from time to time, but I always make sure all the fans are going. Luckily we live in a house with high ceilings, ceiling fans and good airflow.