Say I want to cook some pasta that requires me to bring water to a boil and then boil the pasta for a certain amount of time. Boiling on my electric stove top takes a while, so I thought about getting an electric kettle to expedite that process. While the water is boiling in the kettle, should I be heating up the sauce pan I'm going to use to cook the pasta, or should I wait until the water gets into the saucepan and then turn on the electric stove top to keep the water boiling?