How does an electric kettle work?

In this brief guide, we are going to answer the question “How does an electric kettle work” with an in-depth analysis of how an electric kettle works. Moreover, we will have a brief discussion about the components of an electric kettle as well as the advantages and disadvantages of an electric kettle.

While you wait to relax and enjoy your me-time with a cup of tea, you may watch an electric kettle boil water. Have you ever thought about how an electric water kettle works? The science behind it, on the other hand, is pretty basic.

So if you are in search of an answer to how an electric kettle works, then you need not worry as we are going to answer all your questions.

So without much ado, let’s dive in and figure out more about it.

How does an electric kettle work?

In an electric kettle, the heating element is connected to the thermostat, which has a variable resistor inside; once the user chooses the desired temperature, the thermostat controls the heating element appropriately. 

To put it another way, if the user sets the temperature too high, the thermostat resistor resistance is reduced, and the heating element turns more electricity into heat. When a low temperature is selected, on the other hand, the variable resistor resistance is high, and the heating element produces less heat.

Components of an electric kettle

Although an electric kettle is single electric kitchen equipment, it contains two distinct elements. These two components work together to deliver a high-quality result.

  • Heating element
  • Thermostat  

Electric kettles did not have intricate functions when they first came out; all they had was a well-built body and a heating element inside. Once the liquid in the kettle has boiled, the user must manually turn off the kettle. New electric kettles, on the other hand, are not the same.

Heating element

The heating element in an electric kettle is the most critical component; an electric kettle is useless without one.

A heating element is a resistor that is meant to obstruct the flow of electricity, so heating it. To put it another way, the heating element converts electricity into heat, which then boils the liquid within the kettle.


A thermostat is a component found in many new electric kettles. The heating element is always connected to a thermostat in such a way that the thermostat can control it. 

A thermostat regulates the heating capacity of the heating element and also turns off the power once the desired temperature is reached.

Advantages of electric kettle

A multi-purpose appliance, an electric kettle may be used to boil water, make tea, and even boil eggs. Because of its versatility, it will quickly become a must-have at both home and work.

In most circumstances, they are faster than traditional stove kettles, saving you time by delivering hot water instantaneously. 

The time you were wasting watching the stove kettle could be better spent on other essential things in your life. This is without a doubt one of the most significant advantages of electric kettles.

Electric kettles are becoming more energy-efficient as technology advances, resulting in lower utility bills. Larger models, on the other hand, can add to the power bill because they take longer to heat the water and use more electricity.

Electric kettles are easy to use, portable enough to take with you on the go, and even cordless models are available to make life easier. Some models can be charged using a car charging connector.

Electric kettles contain sensors that automatically turn off when the desired temperature is reached, allowing you to safely boil water or prepare tea.

Disadvantages of electric kettle

While electric kettles have a lot of advantages, they are also more expensive than burner kettles. If you’re merely going to boil water, you probably don’t want to spend money on these. A metal container might be a better option. Many people in many nations still do not use an electric kettle regularly.

Plastic is commonly used in electric kettles, and some argue that this reduces fire safety. Some people dislike the combination of plastic and heat.

Many individuals shun microwave ovens for the same reason. Many people believe they are damaging to their health. Bronze or steel is still preferred for heating water in some regions of the world.

Due to leaching, the plastic may melt or create a change in taste. If there is any rust on the coil, it can cause a change in color and taste.

Even if they are less expensive, they still consume electricity and can significantly increase your electricity cost. For this reason, not everyone enjoys using too much electricity. Due to the restricted watts available, you may not be able to run all models if you are connected to a generator or UPS.


In this brief guide, we answered the question “How does an electric kettle work” with an in-depth analysis of how an electric kettle works. Moreover, we also have a brief discussion about the components of an electric kettle as well as the advantages and disadvantages of an electric kettle. 


Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.