What is an Electric Water Heater ?

Encyclopedia
08/05/2024


What is an Electric Water Heater ?



Electric Water Heater Definition


An electric water heater is defined as a device that uses electricity to heat water for domestic or commercial purposes.


 

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Types of Electric Water Heaters


  • Normal plate heaters

  • Immersion heaters

  • Geyser heaters



 

Normal Plate Heater Working Principle


A normal plate heater uses two nickel plates to heat water through electric current, ideal for small amounts of water.


 

  • Advantages of normal plate heaters




  • They are easy to use and portable.



  • They are cheap and widely available



  • They can heat water quickly.


 

Disadvantages of normal plate heaters


  • They can be hazardous, causing electric shocks or fires if not used correctly.



  • They can only heat a small amount of water at a time.



  • They can damage the containers or surfaces that they touch.


 

 

Immersion Heater Working Principle


An immersion heater has a copper heating element immersed in water, making it efficient for heating large quantities of water.


 

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Advantages of immersion heaters


  • They can heat large amounts of water in containers or tanks.



  • They can be used for different purposes, such as bathing, washing, cooking, etc.



  • They have a thermostat switch that automatically turns off the heater when the desired temperature is reached.


 

Disadvantages of immersion heaters


  • They are more expensive and less durable than normal plate heaters.



  • They can cause electric shocks or burns if not handled carefully.



  • They can corrode or leak over time due to hard water or poor-quality materials.


 

 

Geyser Heater Working Principle


A geyser heater (or storage water heater) has a tank and heating elements that automatically control the water temperature.


 

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Advantages of geyser heaters


 

  • They can provide hot water continuously and instantly without waiting for heating.




  • They can be installed on walls or floors according to convenience and space availability.




  • They have an insulated body that prevents heat loss and saves energy.


 

Disadvantages of geyser heaters


  • They are more costly and complex than normal plate heaters or immersion heaters.



  • They require regular maintenance and cleaning to prevent scaling or rusting.



  • They can pose a risk of scalding or bursting if not used properly.


Encyclopedia

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