What is Water Heater Thermostat? How Does It Work? – Explained!

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The water heater thermostat is a vital part that plays the most significant role in heating the water. It maintains the heating process and provides you with perfectly tempered water every time you use your geyser.

If you want to know the working process of the thermostats, make sure that you go through our explanations.

What is a Water Heater Thermostat?

Would you like it if your water heater gives you the different temperatures at different times?

No, right?

water heater thermostat

Therefore, the water heater comes with a thermostat. The thermostat maintains a specific temperature every time. 

Whenever the stipulated temperature goes down, the thermostat accelerates the power supply to retain the temperature.

Simultaneously, when the electric supply results in the desired heat of the water, the thermostat stops the power supply.

Therefore, you can imagine how vital a thermostat is in maintaining a perfect temperature in the water heater.

It does its duty by continuously checking the temperature.

And it ensures that the water retains its exact temperature until the water heater is turned off.

Where is the Thermostat Situated in a Water Heater?

The thermostat can be outside or inside the water heater. Both types are available in India.

The visible thermostats are controllable. That means you can control the temperature at your desired level.

The other types of thermostats are not controllable. They come with a pre-set temperature level. 

In such circumstances, the temperature level remains around 55C to 60C. You will get green and red light with these heaters.

This indicates whether the temperature is prominent or the heating process is on.

Does the thermostat turn off when not in use?

The answer is a big NO. The only duty of the thermostat is to maintain the temperature. 

You cannot expect the thermostat to switch off the water heater when it is not in use. 

Most people have conceptualized that the thermostat will turn off the water heater when it is not used. But it is not true.

controlling water heater thermostat

The water heater heats the water and keeps it warm for a certain amount of time. After that, the temperature automatically goes down.

When the temperature goes down, the thermostat again heats the water. And the process goes on until the water heater is turned off. 

Therefore, if you leave the heater on, it will never turn off automatically; instead, it will consume electricity.

What is the Ideal Temperature of Water in a Water Heater?

The temperature of the water heater plays a significant role in terms of saving electricity. Therefore, the temperature setting is a very vital thing to notice.

Most of the water heaters come up with 40-75 degree centigrade.

However, the ideal temperature is 50 degrees.

Remember that if the temperature is high, the electricity consumption will also be increased.

Therefore, it would be ideal if you set the bar to a moderate temperature.

To save electricity, you can use a solar water heater. And use the electric water heater as a backup. 

The solar water heaters are safe and run on solar energy. And when there is a cloudy or cold day, you can use the electric heater as a back-up.

What is the BEE Star Rating?

People may not bother about the BEE star rating in the geysers. But actually, they are important to notice. 

BEE star rating

It helps much to save power.

Bureau of Energy Efficiency (BEE) gives the heaters better stars when the product has lesser heat loss.

That means to get better rates, the heater needs to have the capacity to keep the water warm for an extended period.

The science behind it is that the more the heater will keep the water warm, the thermostat will not be used frequently. 

Therefore, much power will be saved.

So, if you left the geyser on, it will consume less electricity compared to the less starred products.

Therefore, it will be wiser if you get a product that has 4-5 stars from BEE.

More Noticeable Points To Save Electricity

  • If the water heater comes in a bigger size, the heater may consume more electricity. Therefore, choose the size wisely.
  • Always heat the water to the extent that you need. Overheating will consume more energy.
  • Do not keep the heater turned on unnecessarily.
  • You can use thermal insulating paint on the pipes and water heater to prevent heat loss. Wall paints can also help.
  • Last but not least, choose an energy efficient water heater that has a 4-5 star rating.

The water heater is an essential component to tackle the cold mornings in the winter.

Therefore, making the right decision is essential. Choose the right product and enjoy hot water.


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