How to Select the Right Geyser Size?

Water Heaters/Geysers are one of the most important electrical equipment in a household.

Hence when it comes to buying them, choosing the size makes a big difference in your day to day life.

If you buy a large size, you will end up wasting electricity by heating more water than you need. And if you buy a smaller size, you will regularly run out of hot water.

Therefore it is crucial to consider your geyser size before buying it.

You would find, many branded and unbranded water heaters having almost similar features, online.

How would you choose the right product for your house? 

Choosing the right geyser is easy, but selecting the appropriate size can be confusing. 

If you’re someone who likes long showers, then selecting a geyser with a small tank may not be a good idea because you might get a not-so-pleasant surprise midway through your shower.

You will also need to consider where exactly you need to install the geyser and take into account the height and the location of the pipes.

If you are familiar with certain facts about geysers and about the various sizes that are available in the Indian market, then it’s going to be much easier.

Selecting the right-sized geyser depends on few aspects that we will be discussing in this article.

Before that, make sure to know what your needs are, the number of people in your family, and, most importantly, where you will be installing the geyser – in the kitchen or bathroom.

When you are done deciding all these matters, then you may proceed towards choosing the right one for you, according to your needs.

Points to Consider While Choosing the Right Geyser Size

Available Space:

Before anything else, you need to see how much space is available in your bathroom/kitchen where you want to install the geyser.

You wouldn’t want to buy the geyser first and then come home to only see that there isn’t enough space to install it. 

There are two types of geysers on the market, instant, and storage.

The instant geysers take very little area to fit, whereas the storage geysers require huge space on the wall.

Consider how much space do you have and then proceed towards buying a geyser.

No. Of People in Family:

Family SizePurpose of hot waterGeyser TypeGeyser Capacity
2-3 membersBathing using bucketInstant/storage6-10 liter
2-3 membersBathing using showerInstant/storage10-15 liter
2-3 membersBathing and washing utensilsInstant/storage15-25 liter
4-6 membersBathing using bucketInstant/storage10 liter
4-6 membersBathing using showerInstant/storage15-25 liter
4-6 membersBathing and washing utensilsInstant/storage25+ liter


This might seem unnecessary, but it is an important factor to consider.

If you live in southern India, then you will not need a geyser of more than 15-liter capacity, because the water temperature is not very low.

If you live in northern India, then you must buy a 25-liter storage geyser, at least.

This is because the water temperature in northern India is very low and goes down even lower in winter.

Thus, climate plays an important role in selecting the ideal geyser size.

Choose accordingly to where you live.


Decide why you wish to buy a geyser.

Whether you want to install and use it in a bathroom or you want it in your kitchen.

This will decide the kind of geyser you should purchase.

If it is used in your bathroom, then you should calculate the family members as the hot water will be used for bathing purposes.  

The longevity of Geyser:

The harsh water conditions become a reason for decreased longevity of the geyser.

In various parts of India, the water conditions are very poor, and if you live in one of those areas, then you might need to consider a few facts like you have to take corrosion into account. 

Saline water can also corrode internal parts of the water heaters.

Instant geysers are more durable when compared to storage geysers.

Instant heater’s parts are replaceable and easily available too.

Most of the instant geysers are of lesser capacity, and on the other hand, the storage geysers have high capacity.


When it comes to the list of various water heaters available today, there is a variety to choose from.

However, picking the right one is essential if you want it to meet all your needs.

This guide will give you a basic idea regarding the factors you should remember before selecting the perfect size for you/your family.

It needs careful consideration to determine the aspects and needs properly.


Megha Kothari

Megha leads the content strategy and oversees an amazing team of writers, editors, and designers, all having one goal in mind – to create brilliant content that helps people make the right purchase investment. When she is not working, you can find her enjoying making delicious food and planning her next travel.

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