How much is a liter of boiling water

  • Dec 24, 2019

Electric kettle - one of the most powerful household electrical appliances, and many think that it consumes a lot of electricity. I found out how much it costs to boil one liter of water.


Full-size teapots are 1800-3000 watts. The higher the power, the faster the water boils, but the most powerful kettles can only be used where there is a power outlet and wiring, allowing a greater load. In general we can say that if the house gas cooker, it is better to buy tea to 2400 W when electric can and 3000 watts.

To find out how much is consumed tea, I took advantage of accurate power meter Robiton PM-2 (ammo1.livejournal.com/827660.html).

My kettle Braun has a stated capacity of 3000 watts, and the actual power consumption is 2600-2700 watts.


During the experiment voltage is varied from 228 to 231 V.


Liter kettle boiled water for 2 minutes 20 seconds. It took only 0.1 kWh of electricity.


The same figure is obtained when calculating the power (2.65 kw / 60 minutes minutes X 2.3 = 0.102 kWh).

When electricity cost 5 rubles per kilowatt-hour, it turns out that the cost of one liter of boiling water is 50 cents.

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If every day to drink the tea three times, get 45 rubles per month or 540 rubles a year. A lot or a little is worth. :)

© 2019 Alex Nadozhin