How many Watts to heat 1 liter water in 1 minute?

To heat 1 liter of water by 1 degree Celsius, you need approximately 1,000 joules of energy. Since there are 60 seconds in a minute, you would need a power of about 1,000 watts to heat 1 liter of water by 1 degree Celsius in one minute. If you want to heat it by a specific temperature, multiply the required degrees by 1,000 watts accordingly. For example, to heat it by 10 degrees Celsius, you would need 10,000 watts.