Best Instant Water Heater In India 3 LTR | Best Choice | Updated February 2021

An instant water heater is a water heating system with low storage capacity that is available in 1 liter or 3 liters to a maximum capacity of 10 liters. And it can quickly heat up a small amount of water.

Often known as tankless water heaters or tankless geysers, Instant water heaters. The power ratings are usually 3000 Watts and 4500 Watts for instant water heaters. For smaller families, instant water heaters are appropriate.

The instant water heater, as the name implies, is able to heat the water immediately and is made ready for immediate use.

Such geysers may or may not have storage space and have a comparatively smaller storage tank for those that do.

The instant water heaters are very compact with their smaller storage tanks and do not take up much room. This is one of the main reasons people go to the water heaters instantly.

Best Instant Water Heater– Our Top Picks

ProductWattageBar Pressure CapacityPrice
Crompton Bliss 3000 Watts 6.5 kg/cm2  3 liters Buy At Amazon
AO Smith 3000 Watts 8 Bar 3 liters Buy At Amazon
Venus Lava 3000 Watts 6 Bars 3 liters Buy At Amazon
Lifelong Flash 3000 Watts 8 Bar 3 liters Buy At Amazon
Hindware Atlantic Convenio r 3000 Watts 6.5 Bars 3 liters Buy At Amazon
Morphy Richards Quente 3000 Watts 6.5 Bars 3 liters Buy At Amazon
Havells Instanio 3000 Watts 0.6 Mpa 3 liters Buy At Amazon
V-Guard Victo Insta 3000 Watts 6.5 bars 3 liters Buy At Amazon
Bajaj Flora Instant 4500 Watts 8 Bar 3 liters Buy At Amazon
Racold Pronto Neo 3000 Watts 6 Bars 3 liters Buy At Amazon

1.Crompton Bliss 3-Litre Instant Water Heater

Crompton Bliss 3-Litre Instant Water Heater

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  • Wattage: 3000 Watts
  • Capacity : 3 liters
  • Heating element: Copper  
  • Bar Pressure : 6.5 kg/cm2 
  • Stainless Steel Weldless Tank
  • Anti- Siphon Protection
  • LED indicators
  • For dual Safety: thermostat, reset knob, and pre-set thermal cut-out
  • Weight : 3.5 kg
  • Dimensions : 350 x 210 x 210 MM

Crompton is just another best instant water heater brand to go for as most of their home appliances are reasonably reliable and have a good standard of construction.

And, with this Crompton Bliss Instant Water Heater, you also get to see something similar. Since it comes at a very reasonable price, if you have a slightly low budget, you can definitely check out this option.

As this instant heater’s tank capacity is nearly 3 liters, it is also ideal for a joint family. Moreover, this heater has a power consumption of about 3000W.

Therefore, you’re not going to have to think much about energy bills. When we talk about the durability of this heater, it has a weldless tank of stainless steel, which guarantees long life and protects it from corrosion.

Although the outside body consists of top-notch ABS material, it also makes it rust-free. In addition, it is capable of handling up to 6.5 bar pressure, which also counts as a plus point.

You also get two indicator lights on the front side which tell you whether or not the water is ready for use. As for the safety features, it also contains a Multifunctional Safety Valve.

In addition to that, to ensure absolute protection for you, there is a high-precision thermostat, reset knob, and pre-set thermal cut-out.

The anti-siphon protection also resists any water backflow, too.

With this instant water heater, Crompton provides a 2-year brand guarantee. Although the standard is good enough you would not have to demand it.
  • Sleek design
  • Stainless Steel Tank
  • Loaded with safety features 
  • Easy to use
  • The powerful Copper heating element
  • No accessories included 

2. AO Smith EWS-3 Instant Water Heater

AO Smith EWS-3 Glass Lined 3 Litre 3KW Instant Water Heater

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  • Capacity: 3 Litres 
  • Wattage: 3000 Watts
  • Pressure: 8 Bar
  • Compact design
  • Hi-tech thermostat and cut-out
  • Rust-proof outer body
  • Heating element: Glass coated 
  • Dimensions: 38.4 Cms X 24.5 Cms X 20.5 Cms
  • Warranty: 5 years
  • Long-lasting Anode Rod
  • Weight: 4 kg 200 g

This model of the AO Smith instant water heater works very well in a very efficient way for all your water heating needs.

The volume is 3 liters which are ideal for families of small and medium size. With this water heater, just get instant hot water within minutes.

Its steady flow is used not only for bathing purposes but also for washing dishes and clothing and other household chores as well.

This instant water heater from AO Smith has a highly efficient heating element covered with glass that prevents sediment or scale build-up on the surface.

And thus the heating element extends its life span. This durable geyser also has a thermal cut-out feature that prevents overheating of your appliance. 

23 percent stronger than normal stainless steel or copper tanks; with Blue Diamond Glass-Lining construction that offers twice the resistance to corrosion relative to industry standards and improves tank lifespan. 

This heater is made of copper that does not accumulate calciferous deposits such as copper elements.

Additionally coated with a Blue Glass formulation which significantly reduces the accumulation of the scale and extends the heating element life.

This heater has technology from Blue Diamond that increases the life of the inner tank. The lining is stronger than any other in the industry and is more corrosion resistant.

Thermal cutout, safety guaranteed even if the water temperature reaches the maximum level of preset.

A custom alloy that works in various water conditions, protects against corrosion the tank and heating part, has twice the lifetime compared to a standard magnesium anode. 
  • Starts working within minutes
  • Decent design
  • Works well at low pressure
  • Consumes high electricity

3. Venus Lava Instant Water Heater

Venus Lava Instant Water Heater

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  • Capacity-3 Liters, 
  • Wattage – 3000 Watts; 
  • Pressure: 6 Bars
  • INNER TANK: 99.9% pure copper
  • Heating Element: Copper Tubular Element
  • Dimensions: 353mm (Height) x 248 mm (Width) x 188 cm (Length)
  • Weight : 2 kg 800 g
  • Guarantee -10 Years

Now it’s Venus Lava coming to the next fantastic option for instant water heaters. Complete all of your hot water needs with this instant water heater at the flick of a switch.

You can easily connect it with your taps and showers for instant hot water with a simple and compact wall-mountable design.

The instant heating method also lets you save a huge amount on your energy bills. This instant geyser has an outer body of ABS plastic which is corrosion-free and shockproof making it more durable.

And this one is proving to be the best when it comes to safety. It has a thermostat function that, when the desired heating level is reached, makes the geyser automatically turn off.

It also comes with a thermal cut-out feature that protects the geyser against overheating and dry heat.

The Inner tank, Heating Element, Inlet / Outlet pipe assembly are made of copper. These parts are in direct contact with water and do not cause corrosion. 99.9% Pure copper tank guarantees productivity free of corrosion and easy serviceability.

It has also a good copper tank resale value.

The outer body of the ABS ensures shock- and corrosion-free performance.

Disc-Type Thermal Cut-out senses the temperature of the tank and disconnects the circuit when the water temperature of the tank reaches 95 degrees.

Inlet water pressure does not exceed 6 bar. Ideal for applications of high-rise buildings & pressure pumps.
  • Fast water heating
  • Copper tank is the biggest advantage
  • Easy and comfortable installation 
  • The efficiency of that water heater is exceptional
  • Nice safety features
  • No cons found 

4. Lifelong Flash 3 Litres Instant Water Heater

Lifelong Flash 3 Litres Instant Water Heater

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  • Capacity-3 Liters, 
  • Wattage – 3000 Watts; 
  • Pressure: 8 Bars
  • Dimensions: 69 x 41 x 13 cm
  • Weight : 3.25 Kilograms
  • Guarantee -2 Years

Lifelong promises to deliver highly reliable home appliances to consumers, and is also very well known for its other products. Even after-sales services, particularly in India, are very good.

Since the price of this instant water heater among the list is by far the cheapest, it is a great choice for budget buyers.

Inside this one, however, you still get a 3-liter tank coupled with a copper heating element, which is actually very energy efficient and consumes just about 3000W.

Apart from that, it also includes a thick layer of PUF material on the inside to seal off the internal heat while the thermoplastic holds the outer body.

This protects it from having any rusting or corrosion over time. Besides, even if you live in extreme high-rise buildings, you won’t have any problems because it can literally withstand the pressure of 8 bars.

In addition, the indicator lights work decently and inform you about the current temperature status. As for the protection of your home and inhabitants,

it also comes with a thermostat and a cut-out function that will turn it off automatically before any mishap occurs.

A manufacturer’s warranty of 2 years extends to all aspects of the Lifetime Flash 3 Litres Instant Water Heater.

Therefore, if anything goes wrong there should be no complications as it gets fixed.

The 3 lit Lifetime Flash Instant Water Heater with high pressure makes it suitable for high-rise buildings and high-pressure pump applications.

Ergonomic structure with a rare blend of technology and design. The heating factor ensures that, in no time, you get hot water.

Provides three levels of protection with cut-out, thermostat, and safety valve, against high temperature and pressure.

The thermostat and cut-out form of stem ensures automatic temperature control as well as extra protection. External thermoplastic body proof of corrosion.

A heating factor effective for longer life. Neon indicator with feature 'power on' and 'heating.' It has several systems for protection.
  • Less power consumption
  • Ideal to use in cities
  • ISI certified product 
  • Pocket-friendly deal
  • No accessories in the package, such as pipes and knobs

5. Hindware Atlantic Convenio 3 Litre Instant Geyser

Hindware Atlantic Convenio 3 Litre Instant Geyser

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  • Capacity-3 Liters, 
  • Wattage – 3000 Watts; 
  • Pressure: 6.5 Bars
  • Technology: The i-Thermostat
  • Dimensions: 21.5 cm x 23.5 cm x 40.5 cm
  • Weight : 2 kg 900 g
  • Warranty – 5 Years

In the Indian market, Hindware is an extremely successful brand. Over time, it acquired a wide customer base by supplying them with all their goods with incredible reliability and decent after-sales services.

As for this geyser here, with 3 liters of tank space, Hindware is offering a decent price deal, which seems quite a viable choice for a small family.

The Hindware Atlantic Convenio’s Wattage instant geysers are also marked at 3000 watts, which also meets industry norms. To last a product long, and to be consistent, the quality and the materials used to make the most of the matter.

And, to cope with that, using a superior corrosion-resistant stainless steel tank inside, Hindware has made this geyser.

On the other side, the outer shell is made of ABS plastic so on every large part of the geyser there is no risk of any kind of corrosion or rusting.

It can clearly withstand up to 6.5 bar pressure making it a safe product to be used in our cities. It also has an I feature that automatically cuts off the connection after the water is well heated to ensure that energy is not wasted excessively or unnecessarily.

It also consists of an all-purpose RPR valve that saves a lot of time and energy and helps to reheat the unused warm water.

If you are worried about the warranty, this geyser’s tank is covered under a 5-year warranty term while the other component has a 2-year warranty, such as the heating portion.

Hindware Atlantic Convenio is an instant water heater that is technologically stable and aesthetically advanced.

It comes built with a superior stainless steel corrosion-resistant tank with an ABS body. It can operate easily at a pressure of 6.5 bar making it suitable for multi-story buildings with its compliance with working pressure Class 1.

The RPR Valve, correctly mounted in the geyser, ensures that hot water is automatically reheated, saving time and minimizing costs as well.

It prevents excess energy wastage with its I functionality, which in turn allows users to reduce electricity costs. A small but instant electric heater for kitchens, or instant use in bathrooms.
  • Robust build quality
  • Affordable pricing
  • Energy Efficient 
  • After-sales services are good
  • No accessories are included inside the box 

6.  Morphy Richards Quente 3-Litre Instant Water Heater

Morphy Richards Quente 3-Litre Instant Water Heater

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  • Capacity-3 Liters, 
  • Wattage – 3000 Watts; 
  • Pressure: 6.5 Bars
  • Technology: The i-Thermostat
  • Dimensions: 22 x 21.2 x 39 cm
  • Weight: 2.6 Kilograms
  • Elegant & Rustproof Exteriors
  • Prismatic Design
  • Superior heating element
  • Indicator Lights for Power On

Next comes on our list is the 3-liter size Morphy Richards Quente Instant Water Heater. Its prismatic architecture provides an ideal balance of height, width, and depth ratio, resulting in higher performance.

For wide spaces, the classy vertical wall-mountable design is perfect and also adds a great style to the decor of your bathroom and kitchen.

It comes with a rust-proof body and a superior heating element, which not only makes the water heater durable but also protects it from damage due to hard water.

Start your day with this instant geyser, with the soothing warm water bath.

The heating element is strong enough to provide you with steaming hot water with a power consumption of just 3000 watts in a few minutes.

For power-on and heating, the light indicators show if the heater is on or the water is ready for use. A heating element built with a specific technology is featured in the water heater, making it extra durable against scaling and less damage due to hard water.

Morphy Richards Quente Water Heater is designed to hold away rust with a high-grade plastic body. The minimalist style fits all contemporary bathroom interiors well and takes up minimal space.

With 3 liters of storage space, the water heater provides enough water to satisfy your needs and bathroom needs.

The water heater can withstand tremendous pressure with a pressure of 6.5 bar and is ideal for high-rise construction.

Morphy Richards is the pioneer in several categories of household appliances by an in-depth study of use & behaviors has come with a new appliance category to add the rich portfolio i.e. Heaters for Water.

Morphy Richards water heaters are specially designed to meet the needs of modern consumers, concentrating on performance and quality to accommodate modern washrooms.
  • Quality is great
  • Very fast heating
  • Great performance 
  • Useful for kitchen and bucket bath
  • Stunning, appealing look
  • Ideal for small families only

7. Havells Instanio Instant Water Heater

Havells Instanio 3-Litre Instant Water Heater

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  • Capacity : 3 Liters, 
  • Wattage: 3000 Watts; 
  • Pressure : 0.6 Mpa
  • Heating element: Copper, Incoloy glass-coated
  • Tank Material: Stainless Steel
  • Technology: Thermal cut off
  • Dimensions:  22.5 x 19 x 37.3 cm
  • Weight : 3 Kilograms
  • Warranty: 5 years on the inner container and 2 years on product
  • Rust and shockproof ABS outer body
  • Non-ferrous pressure plate
  • Compact and easy to install

Get an awesome warm water bath experience and even do all your hot water kitchen chores with this instant water heater from Havells. This beautiful water heater has a host of innovative features that will make sure you get hot water whenever you want it.

This instant water heater consists of high material that ensures it is long-lasting. Also, the geyser offers a perfect ISI marked heating feature.

There is also an overheat cut-off feature that ensures the water does not get too hot. The geyser will shut off automatically once the water hits the desired heat, ensuring that you get exactly the temperature you want.

It has LEDs that, when the water heats to the desired temperature, change color.

Also has a superior 304 quality Ultra thick stainless steel interior tank and outer body Corrosion and shock-resistant ABS.
  • Start working in minutes
  • Heats water instantly
  • Consumes less electricity than others 
  • Nice product with decent look
  • No cons found 

8. V-Guard Victo Insta 3 Litre Instant Water Heater

V-Guard Victo Insta 3 Litre Instant Water Heater with Free Inlet and Outlet Hose;

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  • Capacity : 3 Litres; 
  • Wattage: 3000 Watts;
  • Pressure: 6.5 bars
  • Four Layered Safety Mechanism
  • Inner Tank Material: Rust-Proof Stainless Steel 304
  • Outer Body Material: Rust-Proof High-Quality Engineering Polymer
  • Warranty: 2 years on product; 5 years on Inner Tank

The V-Guard Victo Insta 3 L is a lightweight and stylish instant geyser with a tank and color display panel in Stainless Steel to show the service status. Victo Insta ‘s outer body is made of rust-proof, high quality engineered polymer material that gives your water heater a premium look and keeps it fresh for a longer period of time as well. It is ideal for use in high-rise buildings and has a four-layered protection system. V-Guard ‘s Victo Insta 3 L has an elegant rectangular shape that complements your home ‘s interior. The Victo Insta ‘s outer body is made of high quality rust resistant engineered polymer material that gives your water heater an elegant premium look and keeps it fresh for a longer period of time as well. The inner tank of the Victo Insta water heater is made of high-quality stainless steel grade 304 that prevents your water heater from rusting, giving it a longer life.

There are different protection devices in place for Victo Insta. Thermostat and thermal cutting both maintain accurate temperature control and ensure the protection of your water heater when the temperature reaches the upper limit by cutting off supply. Victo Insta also has a sacrificial anode of magnesium that also makes it ideal for use in hard water environments.

The Victo Insta water heater heating element is made of high-quality copper with an internal magnesium oxide filling that lasts longer and provides superior heating efficiency. This also guarantees a longer life expectancy and less waste of energy. The Victo Insta Water Heater offers versatile inlet and outlet link pipes of superior quality so that you don’t have to struggle with the hardware required to mount the water heater.

  • The standard brand with latest heating features
  • Nice in shape
  • Great value for money 
  • Wall mounting screws are not available
  • Poor after-sales service

9. Bajaj Flora Instant 3 Litre Vertical Water Heater

Bajaj Flora Instant 3 Litre Vertical Water Heater

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  • Capacity-3 Liters, 
  • Wattage – 4500 Watts; 
  • Pressure: 8 Bars
  • Inner Tank Material: SS 304
  • Outer Body Material: ABS
  • Insulation Type:- Fusible Plug
  • Dimensions: 26.5 Cms X 26.5 Cms X 44 Cms
  • Weight : 4 kg 120 g
  • Warranty : 2 years

Bajaj has been an evergreen brand and is doing its best to give the customers good value. Bajaj Appliances’ pricing is also very justifiable; you can check out this Flora Instant Geyser from Bajaj.

This one comes with a tank capacity of 3 liters, which seems to be very appropriate for a small family of 3 or 4 individuals.

The power consumption of this geyser, however, is 4500 Watts, which is ideal for heating up water immediately, but it may also add a small cost to your energy bill in the long term.

Holding these things aside, even if the pressure exceeds 8 bar, this water heater will work perfectly.

And if you live in a high-rise apartment, that’s going to fit you the best. In addition, the product’s build quality is outstanding as it uses the SS 304 material on the inside while the outer cover is made of high-quality ABS material.

In addition, it also has a Fusible plug which provides better electricity insulation.

The Bajaj Flora water heater’s exterior architecture is elegant and will not corrode too quickly, either from the outside or from the inside.

Besides that, you also get a Neon indicator at the front indicating whether or not the water is heated up. Its fire-retardant cable ensures that in case of emergencies, the situation doesn’t get out of your control.

As we know, Bajaj is quite a trusted brand; it also comes with the manufacturer's 2-year warranty.
  • Less maintenance required
  • Exceptional Build quality
  • Ideal for High-rise apartments 
  • Good safety features
  • Slightly higher power consumption

10. Racold Pronto Neo 3 Litres 3KW Instant Water Heater

Racold Pronto Neo 3 Litres 3KW Instant Water Heater

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  • Capacity : 3 Liters, 
  • Wattage: 3000 Watts; 
  • Pressure: 6 Bars
  • Technology: Tem-type thermostat and cutout
  • PUF Insulation
  • Anti Syphon System
  • Dimensions: 33.5 x 20.9 x 20.5 cm
  • Weight: 2 kg 700 g
  • Warranty: 5 years

No doubt, Racold is a good enough brand to select if you are looking for some high-end geyser brand because the appliances don’t reach your bank account and provide you with fantastic and reliable goods.

The Racold Pronto Neo Instant water heater comes with a 3-liter water tank to which a high-power heating system is connected in order to provide you with hot water within minutes of pressing the button.

In addition, because the power consumption is only about 3000 Watts, this Racold water heater is also very energy efficient.

And if you live in higher apartments, you can comfortably use this water heater because it is very easy to withstand the pressure of up to 6 bars.

Besides that, you’ll love its simple Italian-designed design, which offers an impressive combination of style and technology together. In addition, to regulate internal heating, a very thick PUF layer is used as insulation.

As far as safety features are concerned, it features the Anti-Syphon System, which ensures that no water backflow is accessible.

Although the Thermostat and Cutout features take very good care of rising temperatures.

The build quality of this product is actually quite nice, the brand offers a warranty period of 5 years for the tank and 2 years for the heating element for some extra care
  • Suitable for high-rise apartments
  • Italian Crafted design
  • Ideal for a family of four 
  • Energy Efficient
  • You have to pay extra for installation

Why Should You Buy An Instant Water Heater?

There are no storage tanks for instant water heaters and they provide hot water on demand. These water heaters are also around 1/5 of the size of standard water tanks, making them easy to fit in the smallest of areas.

Tankless systems are normally mounted on the wall, allowing the floor space of your home to be preserved.

Another advantage is that you can mount instant water heaters and enjoy their advantages in more areas of your home.

While compared to a conventional water tank, you have to pay more for a tankless hot water system, you save a lot by running tankless for a lifetime.

Firstly, the tank-free system would last twice as long as a heating system. In the first place, this makes it a smart financial decision.

Even, while it is not being used, you don’t have to pay extra for heating water. The water passes through the tankless heater when you turn the tap on and delivers you a sufficient amount of liters per minute.

You can save about 30 to 50 percent of your electricity by switching to an instant water heater.

Instant water heaters are designed to last longer. Modern water tanks have an 8 to 12 year lifetime.

However, an instant water heater typically has a 10-15 year warranty and can continue for two decades if properly managed. You automatically double your heating system’s lifetime when you decide to turn to an instant water heater.

Traditional tank heaters for storing water can only heat a certain amount of liters at once. Although conventional heaters hold a large supply of hot water on hand, the supply is not reliable.

During the day there may be plenty of water available, but as the day goes by and more people take a shower, you’ll run into trouble within no time.

Water keeps running for as long as you need it, with instant water heaters. No matter how many family members take a shower, you will certainly not run out of water.

Buying Guide

Geyser Wattage

Another aspect that makes you choose the right geyser for your home is the wattage of the geyser. The wattage of instant heaters is normally high as the water heats up rapidly. They are supplied with either 3000 W (3kW) or 4500 W (4.5kW). 4.5kW instant heaters heat up the water faster than a 3kW instant heater.

Since the wattage is high, this means the electrical load would be high too. In metro cities such as Bangalore or Mumbai, for example, if all houses in the vicinity use a 4.5 kW instant heater, the electrical grid load will be too high. Eventually, this can lead to tripping or power loss.

Therefore, you should always consider your environment before purchasing an expensive and high-powered system to see if the transformer has the capacity to handle the load. 3kW geysers are an excellent choice for India houses, as they don’t impose an excessively high load on the device.

Heating Element

The heating element is just as important as any other component. Most brands use heating elements in copper with a coating to avoid corrosion of the material. Some manufacturers also use a glass-coated Incoloy heating element because it is considered the best in the industry for corrosion prevention. However, they are costly and can last for approximately 4 years, even with hard water as a source.

The glass-coated copper heating element that works well is another choice and is not that costly. Even when used with hard water, the copper-coated heating element will last for about 2 years.

Water’s Toughness

Since we all know that hard water causes scaling within the geyser’s water tank, this also causes the heating element to be harmed. The corrosion occurs quicker because of this, and you can have to either fix your geyser regularly or purchase a new one. For this reason; you must buy a heater with a water tank resistant to corrosion that is either lined with glass or covered with Vitreous Enamel.

You can also buy a water softener to prevent damage caused to other parts, such as the heating element. The water goes first to the water softener here, and the softener’s output will act as an input to the water heater. Since the hard water is turned into soft water, the geyser does not confront any corrosion-related problems.

Size of Water Heater 

For the geyser, the ideal size should be the amount of hot water that you will need for immediate use at once. There are instant geysers available in sizes from 1 to 3 liters. You will also find a few with a 6-liter size. If you are searching online, most of the available instant water heaters give a 3-liter capacity. 1-liter capacity is not really adequate to provide a constant flow of hot water and is therefore not ideal for bathing. You may use this for the washbasin too. Here is a table to help you analyze the amount of water needed that will be sufficient for your family. Let’s have a peek.

Bar Pressure

In “bars” the water pressure is determined in the water heaters Bar pressure, therefore, implies the water pressure in the geyser or heater that reaches the water tank.

That pressure varies from construction to construction. For example, if you live on the 4th floor of a four-story house, your home’s water pressure would be lower than that of those living on the ground floor. There is a high likelihood that the inner walls will become thin and weakened over a period of time as the water pressure comes into direct contact with the inner walls of the water heater tank. Often even water from the geyser tank starts leaking.

In order to obtain better results in water pressure management, it is recommended that 8 bar pressure geysers for high-rise buildings be purchased.A heater with 6 or 6.5 bar pressure can be bought for those living in an individual home and the water pressure is a little low for them.

Power Consumption

Instead of falling for the marketing gimmicks, you have to purchase an energy-efficient water heater. In general, the energy efficiency of a water heater is determined by the energy star rating (heaters with a rating of 5 stars are considered to be the best). The lower the power usage would be, the higher the BEE (Bureau of Energy Efficiency) star ranking. This, in turn, would increase the heater lifespan.

Tank Material

The material the tank was made of determines the geyser’s consistency. Its consistency is directly influencing the geyser’s durability and performance. Generally, copper, thermoplastic, or stainless steel are used to make water heater tanks.

Copper: Copper is a strong electricity conductor, and easily heats the water. The pace at which the water cools down, though, is also rapid. Thus, in the copper tanks, the heat retention capacity is limited. Copper isn’t immune to corrosion. This, it must be covered with anti-corrosive high-quality content.

Stainless Steel: Compared to both copper and thermoplastic, it is considered the strongest material as steel provides great properties in insulation and heat conductivity. It is also robust, but a little corrosive. You can, however, solve this problem by using a technology-free from corrosion.

Thermoplastic: Thermoplastic tanks are corrosion resistant. Heat retention properties, however, are a bit poor. It needs an extra inner coating on the tank walls to keep the water hot for a long time.

Fuel Type

Most instant water heaters are based on two forms of combustible: electricity and gas. In India, it is a little troublesome to use natural gas as an alternative for power. Therefore, most of the models are only electricity-based. When it comes to installation and power consumption, these versions are also easy.

We will discuss in this article the best electric instant water heater in India. 

Tank Material Coating

Vitreous enamel coating: for a stainless steel water tank, this coating is recommended as it provides great corrosion resistance. It also prevents scaling of hard water. 

Glass-lined coating: This type of coating is performed over a long period of time on either copper or thermoplastic material to retain the water temperature. With continuous use, there are chances of long-term harm to this insulation.


Water heaters are more vulnerable to damage, particularly if your home has a hard water supply. They will need routine maintenance and maintenance. Thus, buying a geyser from a reputed brand that provides strong warranty and after-sales service support becomes even more important. If you buy from a local or lesser-known brand, you can face problems when supplying the geyser for maintenance. Some brands offer a 4-5 year warranty on the tank, and 2-3 years on the geyser’s body and other parts. Some companies also give a 3-year overall warranty with a 4-year warranty on the heating element and an 8 + 2-year warranty on the interior tank. The longer the warranty span, the better it will be.


In a price range of Rs. 2000-Rs. 3500, you can easily find an instant water heater. The price depends primarily on the ability it has, along with the wattage used. High-capacity tanks cost a little more than regular-sized geysers with higher wattage. The material of the tank and the heating material used also have an influence on the instant water heater price.

Advantages and Disadvantages of an Instant Water Heater

For households that use 41 gallons or less of hot water per day, the market for water heaters can be 24 percent – 34 percent more energy efficient than traditional storage water heaters. They can be 8 percent-14 per cent more energy efficient for households that use a lot of hot water about 86 gallons a day. You can achieve even greater energy savings of 27 percent-50 percent if you install a demand water heater at each hot water outlet.

A tankless water heater ‘s initial cost is higher than that of a traditional storage water heater, but tankless water heaters normally last longer and have lower maintenance and energy costs, which may compensate for its higher purchasing price. Most tankless water heaters have more than 20 years of life expectancy. They also have easily replaceable components which prolong their lives for many more years. In comparison, water heaters for storage last 10-15 years.

The standby heat losses associated with storage water heaters will prevent tankless water heaters. Although gas-fired tankless water heaters appear to have higher flow rates than electric ones, they may waste energy if they have a constantly burning pilot light. As opposed to a storage water heater, this can also counteract the reduction of standby energy losses. The pilot light heats the water in the tank so that the energy is not lost in a gas-fired storage water heater.

In a tankless water heater, the cost of running a pilot light varies from model to model. Ask the maker how much gas is used by the pilot light for the model you’re considering. If you buy a model that uses a standing pilot light, you can always turn it off to conserve energy when it is not in use. Instead of a standing pilot light, suggest versions with an intermittent ignition system (IID) as well. On certain gas kitchen ranges and furnaces, this device resembles the spark ignition device.

Frequently Asked Question

Can instant water heaters be connected to shower?

Instant geyser isn’t all that useful for bathing, unless you’re prepared to wait a few seconds to allow the water to heat up again, which can only be possible if you only need a bucket bath. Please see that instant geysers for shower baths are not suitable.

Is an instant water heater good for the bathroom?

An instant water heater with a 4.5kW heating element can heat up to 1 litre of water in around 20 seconds. So an instant water heater will heat up the appropriate amount of water you need in the bathroom, for at least 1 shower.

What is the difference between storage and instant water heater?

At maximum temperatures, instant geysers are responsible for providing instant hot water. In the bargain, the storage geysers consume 2 KW of fuel. If you heat 15 litres of water, the same amount of power would be absorbed by both geysers. The only difference is that less time is required for instant geysers.

Is an instant water heater safe for Bath?

If it is certainly electric or gas geyser but if it is a natural geyser produced in volcanic prone areas then it may or may not be suitable depending on the salt level in the water. Just make sure that the water temperature is healthy, so that your skin does not burn.

Can a water heater explosion kill you?

An explosion in a hot water heater can cause significant damage, physical injury and even death.


That’s all about getting ready to use hot water quickly about your pick of best instant water heaters. To make your purchase decision easier, we have listed all the requirements and reviews from the buyers for each model. Even all the instant water heaters listed above are very reasonably priced. Select the one that suits your budget and needs, then.

You’ll also save some power and water with it since the heater won’t run idle or heat up the water that isn’t eventually used.

It is incredibly difficult to find the right Instant Water Heater since there are many options on the market. But you don’t need to be afraid, as we came up with this article, so you can easily choose the right one. Here, to help you select the right one, we have compiled a list of the best Instant Water Heaters from all well-known brands.

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