Have you tried induction? A kettle on an induction stove will boil pretty quickly and evenly, induction stoves are superior to gas stoves for most tasks (the exception being wok cooking, but you can get curved induction stoves for that). When we rewire our kitchen, I want a 220-40V plug for a separate kettle as well, just because water boiled so much faster in China than when we moved to the states.