Instant Geyser vs Storage Geyser | Who is the Clear Winner?

Instant Geyser vs Storage Geyser
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Are you looking for a new geyser? Do you know the difference between an Instant geyser vs Storage geyser, and which one is best for your home?

Before buying, you need to consider many factors, like space availability, geyser size, price, and power consumption.

We’ll give you all the information you need to make an informed decision about which type of geyser is best for your home. You might be surprised by what we have to say!

Instant Geyser vs Storage Geyser: How do they work?

An instant geyser heats water instantly as it flows through the system, while a storage geyser heats the cold water in its tank and stores to be used later when needed.

Instant geysers cost less front, but storage geyser costs more. Other factors like installation costs and energy usage will affect your final bill at the end of each month.

So before making any decisions, be sure to take everything into account.

Bajaj Flora Instant 3 Litre Vertical Water Heater, 3KW, White

Bajaj Flora Instant 3 Litre Vertical Water Heater

Bajaj is a globally recognized company and has a trusted reputation when it comes to home appliances.

Bajaj heaters are equipped with rusting prevention outer body and multiple safety systems against overheating and withstand high pressure.

It uses fire retardant cable, making safety a top concern. You can trust Bajaj heaters as it is ISI-approved.

Heating time- Instant

It comes in 3 KW and 4.5 KW

Neon indicator to identify ON and OFF

The outer body is ABS

Bajaj heaters work well in high-rise buildings

Overall it is an excellent instant water heater

Crompton Amica 15-L 5-Star Rated Storage Water Heater (Geyser) with Free Installation (White)

Crompton Amica Storage Water Heater

Crompton does not need any introduction as it has over 90 years of brand legacy.

This Heater has 3 levels of safety, and an anti-rust powerful heating element, All the components used in this water heater are of high quality.

This Crompton geyser would be a perfect fit in your bathroom with its elegant design.

Advanced 3-level safety

Smart Shield Anode rod

8-bar pressure rating

Nickel-coated heating element

Free installation, Easily available on Amazon

What is the difference between an instant geyser and a storage geyser?

When it comes to instant vs storage geysers, there are several key differences between the two.

An instant water heater is a tankless hot water system that heats up by a heating element and flows through the system, which you can use instantly.

Instant geysers come with an electronic ignition switch, whereas storage geysers do not need an ignition switch.

Storage geyser first stores the cold water in the tank and is heated by a heating element, which takes 5-10 minutes to warm the water.

In case of few people’s household, it is a good choice for instant water heater but not suitable for large families as it cannot store enough hot water to serve several showers at once and therefore needs time to reheat between uses – this can be quite frustrating.

Features of Instant geyser vs Storage geyser


Installation of the Instant geyser is fast, and it takes 10 to 15 minutes for installation. An owner himself can install it as it requires essential tools.

However, the storage geyser needs a professional plumber for the installation, and he charges accordingly.

Time required for heating

Instant geyser heats water instantly in less than 30 seconds. However, storage heating takes considerable time (5-15 mins)for the water to heat up, making users wait for warm water.

Instant geysers are more advantageous as the user can switch them off if not necessary.

Storage capacity

Instant geyser storage capacity is approximately 1-3 liters, sufficient for small families.

Storage geysers are suitable to serve the large family as they have a capacity of 6-35 liters or more.

Energy saving technology

Instant geysers are technologically advanced with energy-saving technology.

On the contrary, storage geysers are not that energy savers as it heats water 10-15 liters at a time and requires more power and time to heat a large volume of water.

Electricity Consumption & Heating cost

Instant geysers come with 3-4.5 KW results in performing their task quicker, enabling them to satisfy the customer needs instantly,

While Storage geyser starting with 2 KW takes time to heat. Instant geysers consume more energy, do their task instantly, and shut down, which results in less heating cost.

Space Required

Instant geyser needs less space for installation. It can also be used in the kitchen due to its lesser space consumption.

However, storage geysers take a large space and require a proper bathroom for installation.

Repairing cost

In case of any malfunctioning, Instant geysers are easy to repair and cost less burden on your pocket.

On the contrary, storage geysers require professional attention and more costly parts than instant ones, which increases the repair cost.

Water wastage

It is better to switch off the instant geyser if not in use.

However, storage heating systems keep water hot even when not in use which wastes more water and energy.

Cleaning of geysers

Instant geysers do not require frequent cleaning due to less limescale accumulation as they store little water. On the other hand, Storage geyser requires frequent cleaning as limescale accumulates.


Instant water heater systems last longer and require less maintenance work. On the contrary, a storage heating system’s life is also longer but needs regular maintenance, one which needs more maintenance and repair costs.

The longer lifespan of instant geysers and less maintenance makes them a cost-effective option over storage geysers.


An Instant geyser is an electric water heater that heats water on demand rather than storing the hot water in a tank.

Instant Geyser saves energy and cuts down your electricity bills significantly. It is also more economical, compact, and easier to use. Instant water heaters save up to 20-30% on energy costs.

Best suitable use

Instant geyser is best suitable for the kitchen, washing hands, and bathroom for small family members, while Storage geyser can be used for laundry, showering, and bathing for more family members.


The price of an Instant water heater ranges from around 3000-10000, while Storage water heater costs around 4000-12000.

The price difference varies according to storage capacity, features and brand.

The cost of energy consumption for an instant geyser is considerably less compared to the storage type, making it a cost-friendly option.

Gas Instant Geysers

When you open the hot water tap, the sensor detects the flow of water that ignites the gas flame, which heats the metal container and the hot water running through it.

This container is connected to pipe which channels hot water up through the centre of tank and out through a nozzle controlling its flow.

It takes about 30 seconds to heat up and can produce hot water in less than 1 minute.

The control unit controls the desired water flow temperature by controlling the gas flow that is used to heat up the geyser.

Disadvantages of Instant Geyser

The control unit of instant geysers has limited options, making it difficult to control water temperature.

These units also consume more electricity as it comes between 3-4.5 KW, which increases the significant load on your electricity meter than other storage geysers.

If used for long time, the higher power consumption increases your electricity bill.

Instant geysers are a little noisy during operation. In case of power failure, the instant geyser has no backup heating method available as it runs on electricity.

Still Confused Which one to Buy?

Due to their compact size, Instant geysers are better for a small family of 4-5 people and apartments. However, If you have a large home or apartment with many people who need hot water simultaneously.

In that case, you should invest in a storage-type geyser that lasts longer and saves energy costs thanks to its ability to store heated water. So, choose the water heater according to your family size.


Are you taking the plunge and buying a geyser for your home? Great choice! You have two beautiful options available: Instant Geyser and Storage Geyser.

Both offer distinct advantages and disadvantages and can be selected to meet your needs best.

In this blog, we explored both and discussed how you can choose the best geyser for your home so that you can make an informed decision while choosing the one that is right for you.

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