Instant Geyser Vs Storage Geyser: Which One Is Best?

Are you tired of taking cold morning showers? Craving for a hot and relaxing bath? Are you on the lookout for a new water heater for your house?

Let us help you in your search for the best water heater! In this article, we will discuss in detail the working principle of electrical and gas-based water heaters!

Investing in any major electronic appliance demands in-depth research about them. It is crucial to weigh the advantages and disadvantages of both of them before deciding which is the most excellent choice to cater to your requirement.

Don’t worry! We have done that for you! In this article, we will be evaluating an instant water heater and storage water heater on the basis of eleven characteristics.

As a bonus, we will share some tips to help you reduce your carbon footprint and save some money on your electricity bill.


Types Of Water Water Heaters

Before discussing the pros and cons of storage and instant water heaters, let us understand the technology behind water heaters! Gone are the days when you had to heat water on the stove to take a warm bath. A water heater has made its way in every household!

The two most popular water heating technologies are powered either by gas or electricity. These water heaters are available in both immediate and storage versions. Let us look at the difference between them based on their working principles.

1. Gas Water Heater

Gas Water Heater

In this technique, liquid petroleum gas is used to ignite the furnace. Once the flame is burning, the metal chimney is heated, and the water in contact is also heated. Coldwater enters into the geyser via a dip tube.

When you turn on the hot water faucet, the water in the geyser rises and is released into your home. Even though the power consumption is limited in these heaters, the safety of these geysers is questionable; hence, it is not widely used in urban areas.


2. Electric Water Heater

Electric Water Heater

The basic principle of any electric water heater involves converting energy followed by the transfer of heat. When electricity is passed into a water heater, the heating element inside it gets heated due to the transformation of electrical energy into heat energy.

Now that the heater is primed, heat transfer occurs when water comes in contact with the heated element. These geysers are safer to use, but they require electricity; thus, they cannot be utilised in remote locations where energy isn’t readily available.


10 Difference Between Instant Geyser And Storage Geyser

An instant water heater is the fasted method that is available to heat your water. It has limited storage capacity and can be installed in even the most space-restricted washrooms because it is tankless. A storage water heater is a relatively slower method that demands a spacious setup.

Let us look into eleven factors that one should consider before investing in a water heater.

1. Design

A copper or nichrome wire is used as the heating element to heat the surrounding water. The compact body of an instant water heater is made of sturdy stainless steel. The best part: It is rust-free!

A storage water tank has a tank attached to it that allows water storage. It also has a magnesium rod that can act as a sacrificial anode to prevent abrasion.


2. Time

We are always pressed for time in this fast-paced world! Hence we are always on the hunt for choices that are both convenient and less time-consuming! An instant water heater can cater to this clan!

As the name suggests, water heating happens instantly! As soon as the power is turned on, water is heated and delivered via your hot water faucet.

In a storage tank, however, water heating is not instantaneous. Because it takes time for the water to heat up, you may have to wait 5-10 minutes for hot water.


3. Limited Space

If you live in a city, you might be tempted to hunt for the tiniest appliances to keep your room from feeling cramped! You are not alone! Fitting everything you need into a cramped washroom can be a challenge.

An instant geyser is usually without a storage tank. It can be an excellent solution if space constraint is an issue. It can be easily mounted on a wall without taking up too much area in the washroom.

A tank is an essential component of storage water heaters. The tank’s size varies according to the model. As a result, storage water tanks should only be considered if space is not an issue.


4. Convenient

Water can be stored for an extended period in a storage water heater. Since the walls of these tanks are well insulated, the water inside the tank may stay hot for a longer time. As a result, you can have hot water even if there is no power.

An instant water heater cannot function without a continuous flow of electricity. Hence, if there is no power, you cannot enjoy a hot shower with an instant heater!


5. Power Consumption

Power Consumption

Instant water heaters consume less electricity in contrast to a storage water heater. Since the latter heats large quantities of water, the cost of operation is high. If your daily water requirement is less, a storage tank may not be a feasible option due to the heating and reheating of water.

An instant water heater can reduce your electricity bill by 24% to 34%!


6. Affordability


If you are on a budget-friendly mission, then you should go for an instant water tank. Since storage water heaters can heat large quantities of water together, the cost is on the higher end.

Instant water heaters are more cost-effective; since the electricity consumption is relatively less than storage water heaters. As a result, you may expect a lower electric bill with this heater.


7. Life Span

Durability is a critical factor that one considers before investing in any appliance. Instant geysers have a longer life span than a storage water heater. These tankless heaters have an extraordinary lifespan of 20 years in contrast to storage water heaters that can last for 12-15 years.


8. Heat Loss

Even though storage water tanks have insulation to prevent heat loss, heat loss is inevitable when water is stored for a long time.

The geyser automatically reheats water to ensure a hot water supply. It consumes more electricity and increases the overall power consumption.


9. Installation

Water Heater Installation

Installing an instant geyser is more manageable than a storage tank because of its compact size and simple machinery. A storage tank heater has many different elements that take up a lot of room and require a lot of other fixtures.


10. Multiple Supply Pipes

Multiple Supply Pipes

Unlike an instant heater, a storage water heater can heat large quantities of water at one time. Thus, storage heaters can supply water through multiple pipelines. It makes it a very convenient and practical choice for a huge household.


11. Maintenance

Water Heater Maintenance

Although it is claimed that maintaining a storage water heater is more manageable, it is quite the opposite.

Because the inside of the tank is damp and has a large surface area, it is ideal for bacterial biofilms and moulds to grow and proliferate. You wouldn’t want to shower with stale-smelling water, would you?

Furthermore, leaking is a common complaint associated with storage tanks, but it is non-existent with an instant water heater.


Let’s Get Saving! 

Listed below are three efficient ways that can help you reduce your electricity bills! Saving power is the need of the hour as the world drifts towards environmentally conscious and suitable living.

  1. I know we all love long and peaceful showers but using a bucket can help you save tons of water, literally!
  2. Wash clothes in cold water, it won’t harm your clothes, because they don’t need hot water.
  3. Fix leakages to prevent water loss! A leak of one drop of water per year can result in a loss of 10,000 gallons of water!



1. Do we need a special permit to install instant water heaters?

No, a special permit is not required to install instant or storage water heaters. However, if the intention is to set up a solar-powered water heater, access is mandatory.


2. Should climate be a factor while deciding on the water heater? 

If you hail from an area where the temperature drops significantly, an instant water heater may not be the best choice. A storage water heater will provide you with multiple outlets for hot water, thus making it a profitable investment.


Also Read:

How To Choose The Right Water Heater For Your Home?

How To Clean An Electric Water Heater?

Top 10 Best Water Purifier for Home Use



If you are looking for an on-demand hot water supply that is budget-friendly with low maintenance, an instant water heater will be the best bet!

On the other hand, a storage water heater is an excellent option for a large family. Even though these heaters are not bill-friendly, they can offer warm water even if the power goes out!

I hope you found this article helpful! Don’t forget to let us know in the comments below if you finalized your water heater!

Founder at Best Indian | Website | + posts

I am tech writer who is passionate about technology and spearheads the core writing team on tech news

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