I saw a 2 burner electric cooktop at a garage sale today. It is 2400w at 120v, and has a 20a plug on it.
I don't have a 20a outlet where I want to use it. I am guessing that the large burner is 13a and the small one 7a; so if I only use the large one, it will be okay on a 15a circuit. Does that seem like a fair assumption?