An induction oven is a type of electric oven that uses electromagnetism to heat cookware, essentially turning the cookware into its own source of heat. Induction cooking is performed using direct electrical induction heating of cooking vessels, rather than relying on indirect radiation, convection, or thermal conduction. Induction cooking allows high power and very rapid increases in temperature. Induction cooktops work by generating energy from an electromagnetic field below the glass cooktop surface, which then transfers current directly to magnetic cookware, causing it to heat up. Induction-compatible cookware can nearly always be used on other stoves. Some cookware or packaging is marked with symbols to indicate compatibility with induction, gas, or electric heat. Induction cooking is known to be more efficient than traditional cooking methods because very little heat energy is lost during the process and you can heat your cookware without heating your entire kitchen.