The tea kettles bring 7 or fewer cups of water to a boil in less than five minutes. That is just as fast as an old fashioned stove top tea kettle. Just pop in your tea bags or leaves, switch to low heat and brew the best-tasting tea ever. With some kettles you can add your tea bags first; it will come to a boil, and then automatically shut off. There are also cordless electric kettles on the market. They are very popular to use when traveling. more