Types of Geysers Explained: Which One Fits Your Home?

Winters, like anything else, has its fans and critics. Yet, both groups share a common trait - an aversion to cold water for bathing. Whether you enjoy the chill or long for summer, one thing remains true—a hot shower on a cold morning is pure comfort. And that’s exactly where water heaters step in. Now the question comes - what do you need? A storage water heater or an instant one? Well, it really depends on your preferences and lifestyle. If you live in a large family or just love indulging in long, rejuvenating showers, you definitely need a storage water heater. Since storage geysers have large tank capacities to store hot water, they are ideal for large families where they can be used back-to-back. On the other hand, instant water heaters are your thing if you want hot water on demand in no time. These geysers are compact in size, which makes them suitable for small bathrooms and kitchens where space and usage are limited.

Both types of water heaters have their own perks. In this article, we’ll explore the key differences, benefits, and which option best suits your needs. Let’s discuss storage water heaters vs instant water heaters.

Geyser shopping gets a lot easier once you know there isn't just one kind of geyser. Four distinct types are sold in India, each built for a different hot water problem. Here's what each one actually is, in plain terms, before you get into comparing specific models.

Storage Water Heaters

Storage geysers, as the name suggests, store hot water using a tank. This type of water heater is ideal for large families where the requirement of hot water is generally high. Depending on your family size, you can choose a storage geyser. For a household of 2 to 3 members, a storage water heater with a tank capacity of 10-15 litres is good enough. However, if you prefer showers, you should go for a 25-litre capacity geysers, as showers usually consumer more water than a bucket bath. Depending on your requirements – whether you need hot water for showers, laundry, etc. – you can choose between tank capacities ranging from 6 litres to 100 litres.

Since storage geysers heat a significant amount of water in one go and then maintain the temperature as well, they comparatively consume more power. However, thy can be energy efficient too. When buying one, check for BEE star ratings,  which range from 1 star to 5 stars in order of increasing efficiency. More stars mean more savings. Besides power consumption, you must also check that quality of insulation between the tank and the outer body since poor quality insulation can lead to heat loss thus leading to more energy consumption. Orient Electric offers an extensive range of BEE 5-star rated storage water heaters in different capacities and designs to suit every space, need, and style. Many Orient water heaters come with Eco Mode which sets optimum temperature to conserve energy while keeping the water warm and use Whirl flow technology which helps deliver 20% more hot water.

Storage water heaters usually have higher upfront cost, but you can save on running costs by investing in an energy efficient model. Another important thing to consider is the size of the storage water heaters which is bigger than that of instant water heaters owing to the larger tank capacities. When buying one for your bathroom, you should check the available space first. Storage geysers also come horizontal shapes nowadays. One interesting thing that has happened in recent years is that fact that storage water heaters have started to come in different shapes and aesthetically pleasing designs, so you can easily find one that suits your bathroom interior. If you are looking for a stylish storage geyser, the Orient Electric Aquator IoT and Orient Electric Enamour Plus are great options.

Heat and hold a tank of water in advance, ready at your set temperature. Capacities typically run from 6 litres up to 25 litres and beyond, and this is the type most Indian households use for regular, everyday bathing across one or more bathrooms.

Instant Water Heaters

Instant water heaters, as name suggests, heater water instantly. These are high-powered, compact appliances that provide you with hot water in the fastest-possible time. Instant geysers are ideally suited for small bathrooms, kitchens, and office pantries – where space and usage are limited. Since these geysers heat water only when required, they are more energy efficient in comparison to the storage geysers. Moreover, the upfront cost is also lesser compared to the storage geysers. As they are compact in size, they can fit into small spaces easily. Moreover, you can find them in a variety of aesthetically pleasing designs to complement your existing décor. Since there is no tank in instant water heaters, the chances of corrosion or leaks are reduced, which account for their longer lifespans.

Generally, instant water heaters are available in smaller capacities, usually in the range of 1-3 litres. However, we have a few with higher capacities as well. For example, Orient Electric is offering Auro Rapid Pro instant geyser in 5.9-litre capacity and Rapidus instant water heater in 5.5-litre capacity, setting new industry standards while ensuring more hot water for your everyday tasks.

Heat water as it flows through the unit, with no tank and almost no wait. Typically 1 to 6 litres in capacity, and best suited to a single bathroom, a wash basin, or a kitchen sink where the hot water need is quick and occasional rather than continuous.

Immersion Rod Heaters

A portable heating rod that's submerged directly into a bucket of water. Not a fixed bathroom fixture like the other three, but a simpler, lower-cost option that works well as a backup during power or plumbing issues, or as the sole solution in homes that don't have a wall-mounted geyser installed. See the immersion water heaters range for available wattages.

Gas Geysers

Heat water using LPG or piped natural gas rather than electricity, delivering hot water quickly through combustion. They need proper ventilation to safely vent exhaust fumes, which is one reason they've become less common in newer, more enclosed apartment bathrooms. Orient Electric's water heater range is electric only, across instant, storage and immersion types.

Quick Comparison

Key Things to Consider:

Whether you are choosing a storage water heater or an instant water heater, you need to consider a few important things before making the purchase.

Water type: Hard water is a common problem across the country. There are different types of mineral salts such as magnesium and calcium in high levels in the hard water which can cause scaling in a water heater over a period of time and reduce efficiency. Therefore, it’s important to ensure that the water heater you buy has a superior quality tank, heating element, and other anti-scaling features. To that end, Orient Electric offers a range of storage water heaters, available with corrosion resistant Ultra-Diamond Glassline coated tank that ensures 40% longer tank lifespan, high-strength nano-polymer coated tank, high-grade stainless-steel tank, magnesium anode rod, and superior heating element. These heaters are made to withstand the test of time.

Pressure Pump Compatibility: For those living in high-rise buildings, it’s extremely important to check the pressure bearing capacity of a water heater. Due to the height and distance from the water source, high pressure of water in skyscrapers  can damage the inner tank of a water heater resulting in leakage. When buying a storage geyser, look for one that has pressure compatibility of up to 8 bar. Similarly, for instant water heater, pressure compatibility of up to 6.5 bar is considered appropriate for use in both low-rise and mid-rise buildings.

Safety Features: Do not forget to check the safety features. Orient Electric water heaters boast of an array of safety features including shock-proof and waterproof body, multifunctional valve for enhance safety, auto cut off, moulded 3-pin plug for better load efficiency, pressure release valve, and anti-siphon hole. On top of these features, Orient water heaters come with long warranties to give you peace of mind.

Aesthetics: Gone are the days when all water heaters had almost the same design and style. But now, you will find water heaters, be it storage or instant, in a wide range of visually appealing designs and finishes. Just a quick search and you will easily find one that will seamlessly blend with your contemporary kitchen or bathroom interior.

Budget: A water heater is undoubtedly an important investment, and we recommend going for one with superior build and safety features. However, you should always consider your budget, compare prices of different models online and offline, and watch out for deals and offers. Many brands come out with special discounts during festive season, so chances are that you could get a high-end water heater at a reasonable price.

Narrowing It Down Fast

●       One bathroom, occasional hot water need: instant is usually the simplest fit.

●       Regular daily bathing across the household: storage is the practical default.

●       Need a backup for power cuts or plumbing gaps: an immersion rod is worth keeping on hand regardless of what else you install.

●       No piped gas connection or limited ventilation: rules out gas geysers for most apartment bathrooms.

From considering your hot water requirements to tank capacity and safety features, choosing a water heater involves a thoughtful assessment of various factors to ensure you get the best one for your home. Do check out Orient Electric’s complete range of water heaters here.

Frequently Asked Questions

Q1. Is an immersion rod the same thing as a geyser?

Not quite. A geyser is a fixed, wall-mounted appliance, while an immersion rod is a portable heating element you place directly into a bucket of water. Both heat water, but they're used very differently.

Q2. Can I install a gas geyser in an apartment bathroom?

Only with proper ventilation for the exhaust fumes. Many smaller, enclosed apartment bathrooms don't have adequate ventilation for this, which is a major reason electric geysers are now the more common choice in newer buildings.

Q3. Which type of geyser generally lasts the longest?

Instant geysers tend to have fewer tank-related wear issues since there's no stored water sitting inside them, while storage geysers can last a long time too when the tank and anode rod are properly maintained, especially in hard water areas.

Q4. Do all four types need the same safety features?

The core electrical safety essentials, such as proper earthing and an ELCB or RCCB, apply to instant and storage geysers alike. Gas geysers instead need proper ventilation as their primary safety requirement, and immersion rods need careful handling since they're used directly in water you may touch.

Q5. Can I use both an instant and a storage geyser in the same home?

Yes, and many households do, running a storage geyser for the main bathroom and a compact instant unit for the kitchen or a second bathroom with lighter use.