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Best Electric Instant Hot Water Heater (2023 Update)

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If you're looking for a convenient and energy-efficient solution for hot water, an electric instant hot water heater might be just what you need. This type of water heater can provide hot water on demand, without the need for a bulky storage tank. But with so many options available on the market, it can be challenging to choose the best one for your needs.

Before buying an electric instant hot water heater, there are a few factors to consider. Firstly, think about the size of your household and your typical hot water usage. This will help you determine the appropriate flow rate and capacity of the heater. You'll also want to consider the power source, installation requirements, and the overall energy efficiency of the unit.

To help you make an informed decision, here are some questions to think about: Would you prefer a unit with a display screen or basic controls? Should the heater have a digital thermostat or not? Will you need a professional to install it or can it be completed as a DIY project? By considering these questions, you'll be on your way to finding the best electric instant hot water heater for your home.

10 Best Electric Instant Hot Water Heater

# Product Image Product Name Product Notes Check Price
1

This product is ideal for providing hot water in kitchens for household use.

2

Ideal for providing instant hot water in bathrooms, kitchens, and for washing with an easy-to-install tankless electric heater.

3

Ideal for providing hot water instantly and efficiently in a small space under a sink.

4

The product is ideal for providing instant hot water for homes, kitchens, and bathrooms with remote control and LED display.

5

Ideal for providing hot water on demand in specific areas such as bathrooms, kitchens, and laundry rooms.

6

This product is ideal for small spaces and provides instant hot water without the need for a large tank.

7

This product is ideal for providing hot water in small spaces or as a supplemental source of hot water.

8

This product is ideal for providing on-demand hot water quickly and efficiently for various uses in residential or commercial settings.

9

This electric water heater is ideal for providing hot water on demand with a digital display and overheating protection.

10

Ideal for providing hot water at specific points of use such as the sink or shower.

This product is ideal for providing hot water in kitchens for household use.

Ideal for providing instant hot water in bathrooms, kitchens, and for washing with an easy-to-install tankless electric heater.

Ideal for providing hot water instantly and efficiently in a small space under a sink.

The product is ideal for providing instant hot water for homes, kitchens, and bathrooms with remote control and LED display.

Ideal for providing hot water on demand in specific areas such as bathrooms, kitchens, and laundry rooms.

This product is ideal for small spaces and provides instant hot water without the need for a large tank.

This product is ideal for providing hot water in small spaces or as a supplemental source of hot water.

This product is ideal for providing on-demand hot water quickly and efficiently for various uses in residential or commercial settings.

This electric water heater is ideal for providing hot water on demand with a digital display and overheating protection.

Ideal for providing hot water at specific points of use such as the sink or shower.

1. 8l Kitchen Electric Water Heater – Hot And Huge!

Introducing the Lightweight Electric Water Heater – the perfect combination of inner quality and classical appearance. This water heater is designed to cater to the multiple demands of different families, making it an ideal solution for those who face difficulties in hot water supply for various purposes such as face washing, bathing, vegetable washing, and dish washing.

The product is made of green environmental material, which is qualified for international standards, ensuring that it is both safe and eco-friendly. It is a directly heating type with a high-efficiency and low-power heating tube, which maximizes thermal energy. The temperature can be adjusted between 55℃-75℃, and the power will automatically shut off when the set temperature is achieved.

This water heater is versatile and can be installed in the kitchen, restrooms, bathrooms, or any other place one desires. It is characterized by its small area, strong applicability, and convenient installation. With a total power of 1500w, it has multiple installation methods and is suitable for different water pressures in different areas. It is especially beneficial for families located on higher floors with low water pressure.

2. Mini Tankless Hot Water Heater For Instant Use

Looking for a reliable and efficient electric water heater? Look no further than this product! With a powerful 3000W heating system, this electric water heater provides instant, consistent, and endless hot water with no waiting or temperature fluctuations. Perfect for sinks, it's time to say goodbye to lukewarm water and hello to a comfortable and reliable hot water experience.

Not only is this electric water heater efficient, it's also eco-friendly and cost-effective. Save up to 55% on your electric bill and reduce water usage with this water-saving device. The heating system is adjusted by the water flow regulating valve or faucet switch, with large water flow resulting in low temperature and small water flow resulting in high temperature. This feature is especially useful in the winter for hand washing, dish washing, face washing, and other daily tasks.

In addition to its energy efficiency, this electric water heater also boasts smart self-adjustment technology. The hot water heater adjusts power input based on the flowing rate and temperature setting in real-time, ensuring that you always get the ideal temperature without the risk of scalding hot water. Its simple operation and comfortable experience make it a smart choice for any household.

Safety is also a top priority with this electric water heater. With multiple protection devices and strict testing procedures, this product is designed to be 100% safe. Its inner water and electricity lines are separated to avoid leakage or harm from scale buildup. The temperature is adjusted by the water flow regulating valve or faucet switch, ensuring a safe and durable experience.

3. Electric Tankless Water Heater: Led Display, Instant Heat

This small water heater is designed to be both smart and practical, with a range of features that make it perfect for installation under a sink. The unit is equipped with a smart touch control and LED display, which makes it easy to use and monitor. With a minimum water flow of just 0.4 GPM, it is ideal for use with a single sink.

The compact size of this instant electric water heater means that it can be mounted in a variety of ways, making it ideal for use in kitchens, wet bars, schools, hospitals, hair salons, and boats. It requires a connection of 1* 40A circuit breaker & 8 AWG wire, and should be installed close to an outlet for optimal energy efficiency. Please note that the product dimensions are 7.8" x 6.3" x 3.9", and the water pipes fitting is 1/2" NPT male.

This water heater is designed to be reliable and durable, with a range of safety features that ensure your peace of mind. It comes with 5 protections and is NFS approved, which means that it offers lead-free water. It is also ETL safety certified, with a leakage and overheat protection device to ensure your safety. The stainless steel and copper components are designed for high efficiency and durability.

With this tankless water heater, you can enjoy consistent hot water on demand, without having to wait for preheat. The temperature rise of 1.0 GPM is 22°F, and it is easy to get hot water between 85°F – 194°F in seconds. This means that you can enjoy instant and endless hot water whenever you need it.

Finally, this 120V tankless water heater features an upgrade rotatable digital temperature display and touch control panel, which makes it easy to set and monitor the temperature of your water. Please note that this mini water heater is only suitable for sink use, and is not intended for bathing.

4. Gold Electric Tankless Water Heater With Remote Control.

Looking for a reliable and energy-efficient instant hot water heater? Look no further than this upgraded tankless water heater electric. With its advanced features and user-friendly design, this water heater is the perfect choice for anyone who wants to enjoy hot water on demand without the hassle of traditional water heaters.

One of the biggest advantages of this hot water heater is its instant heating technology. With a voltage of AC 110V and wire requirements of 2.08mm² Copper wire (#14 awg wire), this water heater is designed to provide continuous, instant hot/warm water without any standby energy consumption. Plus, it's easy to control using the included remote control or button, so you can adjust the temperature to your exact preferences.

Another great feature of this tankless water heater is its energy-saving design. Unlike traditional water heaters that store hot water in a tank, this water heater only heats water when you need it. This means you can save up to 50% on your water usage compared to ordinary water heaters, without sacrificing performance or convenience. However, it's worth noting that the heating temperature may be lower than that of traditional water heaters, so this water heater may not be suitable for bathing in colder temperatures.

Installation is a breeze with this tankless water heater. It's lightweight and easy to install vertically facing up or down, so you can easily find a spot for it in your home. Plus, the simple and intuitive design means you won't have to spend hours reading complicated instructions or calling in a professional.

Whether you're looking for a reliable hot water solution for your kitchen or bathroom, this tankless water heater is the perfect choice. So why wait? Order yours today and start enjoying instant hot water whenever you need it! Just make sure to check the wire specifications and circuit breaker requirements before installation.

5. Rheem 3.5kw 120v Point Of Use Tankless Electric Water Heater

Looking for a compact and stylish water heater that can deliver the perfect temperature for your needs? Look no further than this top-of-the-line model, which features digital temperature control that lets you adjust the temperature in increments of 1 degree Fahrenheit. With a range of 80 to 140 degrees Fahrenheit, you can easily find the perfect temperature for your hot water needs.

If you're considering the RTEX04 or RTEX06 models, it's worth noting that these units are designed to provide output temperature only and are not thermostatically controlled. While they still offer excellent performance and reliability, they may not be the best fit for those who need more precise temperature control.

Regardless of which model you choose, you can rest assured that you're getting a top-quality water heater that will provide reliable and consistent hot water for years to come. So why wait? Upgrade your hot water system today and enjoy all the benefits of a high-quality water heater!

6. Compact Mini-Tank Water Heater For Under Sink

Looking for a safe and durable mini water heater for your home or RV? Look no further than this 3 gallon, 110V/120V water heater with a 304 stainless steel liner. With fewer seams and strong pressure bearing capabilities, this water heater is built to last. It is also leak-proof, explosion-proof, and has multiple safety features to protect you from burns, electric shocks, and other injuries.

This mini water heater also features a sensing temperature control system, which displays the working status and heating water temperature on an LCD screen. When the water temperature reaches 167 ℉, the machine will automatically enter a heat preservation and constant temperature mode. This system is also equipped with automatic control and supplementary cold water heating capabilities.

The adjustable knob switch is easy to use and allows for flexible temperature control, ranging from 80 ℉ to 167 ℉. Plus, this mini hot water heater is energy-saving and environmentally friendly. After reaching the highest temperature of 167 degrees Fahrenheit, it enters a constant temperature and heat preservation mode. Even when the power is turned off, the heat preservation can last for up to 2 hours, and when the power is on, it only consumes 0.69 degrees of electricity per day.

With its mini body and high-efficiency performance, this water heater is perfect for a variety of settings, including kitchens, bars, restaurants, bathrooms, and RVs. Its extended stainless steel heating tube and 1500W power output ensure fast and stable heating, with a thermal efficiency of up to 98%. In fact, it can heat water in just 6-13 minutes, making it a convenient and reliable choice for all your hot water needs.

7. Camplux Me40 Mini Tank Electric Water Heater 4-Gallon With Cord Plug,120 Volts

The Camplux 4-Gallon Electric Water Heater is a smart and efficient solution for those who want hot water right where they need it. This mini-tank, with built-in insulation foam, effectively reduces heat loss, ultimately saving you energy and money.

This electric water heater is built with high-quality materials, including a glass-lined tank that ensures a long service life and is easy to maintain. The elegant and sleek streamline design cover enhances the kitchen's appearance, making it more attractive.

The Camplux electric water heater is UL approved for safety, with a thermostat control that allows for easy adjustment of water temperature. The high limit device is an added safety feature that provides protection from overheating.

Installation of this electric water heater is a breeze, thanks to the 43.3’’ cord that plugs into a 120-volt outlet for independent installation or in-line with a large hot water source. The maximum water pressure is 150 PSI, and the CSA listed Temperature & Pressure relief valve is included for added safety.

This versatile water heater can be mounted on a shelf, wall, or floor. Its compact size (11.75" W x 22" H x 10.38" D) allows for easy installation directly under the sink, providing hot water with minimal waiting time. Simply tap into the cold water line and install the water heater directly at the sink to enjoy instant hot water.

8. Instant Hot Tankless Electric Water Heater

Introducing the instant hot water heater, a compact and efficient solution for your home's hot water needs. This tankless heater does not store water, providing instant access to hot water when you need it. It offers a water temperature range of 30-55℃ and requires a voltage of AC 110V, with wire requirements of 6mm² copper wire (#9 awg wire) and a trip switch of ≥63A (otherwise it will trip). It is also designed to work with an applicable water pressure of 0.04-1.2Mpa.

With a 5.5KW heating system, this hot water heater is 24/7 ready to supply hot/warm water at your preset temperature throughout your home. You won't have to worry about standby energy consumption or waiting for a tank to fill up. The temperature ranges from 86°F- 131°F, and it requires a 63A circuit breaker and 1/2"NPT water connections.

Weighing only 8.8"W×8.2"H×3"D, this sleek tankless water heater is as compact as an oatmeal box, making it easy to install anywhere close to an outlet and avoid energy waste. It can be mounted horizontally, vertically, or obliquely, making it ideal for use in the kitchen, bar, school, hospital, community, and hair salon.

The on-demand water heater is self-modulating, automatically adjusting the power based on the change of inlet water flow and temperature. With optimal energy efficiency of 98%, it saves considerable electric charge.

Convenient to use, the touch control panel and digital temperature display make it easy to set your desired temperature. The unit is lightweight and easy to install, whether vertically facing up or down. Simply open the tap to start the unit heating with an activation flow rate of 0.5GPM. Then turn on the tap and let the smart unit do the rest while you enjoy instant hot water.

9. Electric Hot Water On-Demand

Looking for an instant and efficient way to get hot water for your sink? Look no further than this electric water heater. With a 5.5KW heating system, this tankless unit supplies consistent hot water at 116℉ or higher temperature almost immediately, without any preheating or fluctuations in temperature that can ruin your experience.

The unit is also equipped with smart self-adjustment features that adjust power input based on flow rate and temperature settings, ensuring that you get the ideal temperature every time, without any risk of scalding. With an impressive energy efficiency of 98%, this water heater will also save you a considerable amount on your electric bill.

Using this tankless water heater couldn't be easier, thanks to its digital display and touch control panel. No more struggling with mixer taps or guessing at the right temperature – simply set the temperature you want and let the unit handle the rest. While this black model does not come with a remote control, it is perfect for installation under a sink.

Safety and durability are also top priorities with this water heater. The unit is fitted with multiple protection devices and is rigorously tested to ensure 100% safety. Inner water and electricity lines are designed to run separately, preventing any leakages or scale build-up that could cause harm. Approved by ETL and qualified for UL, this unit is built to last for years to come.

With its compact design (about the size of an oatmeal box), this tankless water heater can be installed almost anywhere near an outlet, reducing energy waste. It can be mounted horizontally, vertically, or obliquely, making it perfect for a variety of settings such as kitchens, bars, schools, hospitals, communities, and hair salons. Just make sure to verify that the 5.5kW@240V dimensions 11" x 7.5" x 2.35" and pipe fittings of 1/2" NPT are the right size for your needs.

10. Ariston Andris 2.5 Gallon 120-Volt Corded Point Of Use Mini-Tank Electric Water Heater

Introducing a sleek and compact hot water solution, this product is designed for both wall and floor mounting, with a wall bracket included for easy installation. Whether it is used as a booster or standalone unit, it provides instant hot water at the point of use. The installation process is hassle-free, requiring only a water connection and standard 110/120 Volt outlet.

This hot water system comes with a 6-year limited warranty on the tank and a 2-year warranty on its parts, giving customers peace of mind in the event of any unexpected issues. The product features TitanShield exclusive technology, which provides full protection to the inner surface against corrosion. Additionally, the robust and environmentally safe insulation increases energy efficiency, making this product both reliable and sustainable.

This hot water system is perfect for those seeking a space-saving solution that provides immediate hot water at the point of use. Its compact design and easy installation make it a versatile option for both residential and commercial settings. With TitanShield technology, customers can rest assured that this product is built to last.

Best Electric Instant Hot Water Heater FAQs

Are there any safety concerns with electric instant hot water heaters?

Electric instant hot water heaters are generally considered safe to use as long as they are installed and maintained properly. However, like any appliance that involves electricity and water, there are a few safety concerns that users should be aware of.

Firstly, it is important to ensure that the heater is installed by a licensed electrician or plumber to ensure that it is correctly wired and that there are no leaks or other safety hazards. Users should also ensure that the heater is positioned away from flammable materials and that it is not exposed to water or moisture.

Another potential safety concern with electric instant hot water heaters is the risk of electric shock. This can occur if the heater is not grounded properly or if there is a fault in the wiring or other components. Users should always follow the manufacturer's instructions and avoid tampering with the heater or attempting to repair it themselves.

Overall, while there are some safety concerns associated with electric instant hot water heaters, these can be minimized by following proper installation and maintenance procedures and using the heater according to the manufacturer's instructions.

How do electric instant hot water heaters compare to gas-powered ones in terms of performance and cost?

Electric instant hot water heaters and gas-powered ones have different ways of functioning, and therefore their performance and cost vary significantly.

Performance-wise, electric instant hot water heaters are known to provide hot water immediately, without the need to wait for a tank to heat up. This means that they are more efficient in terms of energy consumption, as they only heat the water that is needed, rather than heating a whole tank. Gas-powered hot water heaters, on the other hand, can provide a higher flow rate of hot water, which is beneficial for larger households with multiple hot water needs.

In terms of cost, electric instant hot water heaters are generally cheaper to purchase and install than gas-powered ones. However, their operating costs can be higher, as electricity is generally more expensive than natural gas. Gas-powered hot water heaters are more expensive to purchase and install, but their operating costs can be lower due to the lower cost of natural gas.

Ultimately, the choice between electric instant hot water heaters and gas-powered ones depends on personal preference, household needs, and budget.

How long does it take for an electric instant hot water heater to heat up water?

The time it takes for an electric instant hot water heater to heat up water can vary depending on the unit's size and power output. On average, it takes about 10-15 seconds for the heater to produce hot water once the faucet is turned on. This is because the electric heating element quickly heats the water as it passes through the unit. However, if the unit is undersized or there is a higher demand for hot water, it may take longer for the water to heat up. It's important to note that electric instant hot water heaters are designed to provide hot water on demand, so there is no need to wait for a storage tank to fill up. Overall, electric instant hot water heaters are a convenient and energy-efficient option for providing hot water in homes and businesses.

How much does it cost to install an electric instant hot water heater?

The cost of installing an electric instant hot water heater varies depending on several factors. Typically, the cost of the unit itself ranges from $200 to $800, depending on the size and features. Installation costs will depend on the complexity of the job, the location of the installation, and the plumber's hourly rate. The cost of labor for installation can range from $200 to $500.

If you're replacing an existing electric hot water heater, the installation cost may be lower since the plumbing and electrical connections are already in place. However, if you're installing a new unit, the cost may be higher due to the need for additional electrical work and plumbing connections.

It's important to note that while electric instant hot water heaters may have a higher upfront cost than traditional tank-style heaters, they can save you money in the long run due to their energy efficiency and longer lifespan. It's best to consult with a licensed plumber to get an accurate estimate for the installation of an electric instant hot water heater in your home.

What are the most important features to look for in an electric instant hot water heater?

When selecting an electric instant hot water heater, there are several important features to consider. First and foremost, it is crucial to choose a model with the appropriate capacity for your household's hot water needs. This will depend on factors such as the number of people in your home, your daily hot water usage, and the temperature of the incoming water supply.

Another important consideration is the energy efficiency of the unit. Look for a model with a high Energy Factor (EF) rating, which indicates how efficiently the unit converts energy into hot water. A higher EF rating means lower operating costs and a more eco-friendly appliance.

Other important features to look for include safety features such as automatic shut-off in the event of a malfunction, as well as durable construction and a warranty that provides peace of mind. Additionally, consider the ease of installation and maintenance, as well as any user-friendly features such as digital temperature controls or remote operation. By carefully weighing these factors, you can choose an electric instant hot water heater that meets your household's needs and delivers reliable, efficient hot water on demand.

What is the average lifespan of an electric instant hot water heater?

The average lifespan of an electric instant hot water heater can vary depending on several factors such as usage, maintenance, brand, and model. Generally, a well-maintained electric instant hot water heater can last between 10-15 years. However, some models may have a shorter lifespan due to their build quality or specific features.

To extend the lifespan of your electric instant hot water heater, it is important to maintain it regularly by flushing the tank to remove sediment buildup, checking the pressure relief valve, and inspecting the heating element for signs of wear or damage. Additionally, choosing a reputable brand and model can help ensure a longer lifespan for your hot water heater.

It's also important to note that proper installation and usage can play a significant role in the longevity of your hot water heater. Following manufacturer instructions and having a professional install the unit can help prevent issues and prolong its lifespan.

What is the best size for an electric instant hot water heater for a small household?

The best size for an electric instant hot water heater depends on the hot water demand of the household. For a small household with one or two people, a unit with a flow rate of 2-3 gallons per minute (GPM) is usually sufficient. This will provide enough hot water for a shower, sink, and dishwasher use without running out of hot water.

It is important to consider the temperature rise required for the desired hot water temperature and the incoming cold water temperature. The colder the incoming water temperature, the higher the temperature rise needed, which affects the unit's flow rate.

Additionally, it is crucial to consider the unit's energy efficiency, as a more efficient unit will save on energy costs in the long run. Look for units with a high energy factor (EF) rating, as this indicates the unit's efficiency in converting energy to hot water.

Overall, it is best to consult with a professional plumber to determine the appropriate size and type of electric instant hot water heater for a small household's specific needs.

What is the energy efficiency rating of the best electric instant hot water heaters?

The energy efficiency rating of electric instant hot water heaters can vary depending on the brand and model. However, the best electric instant hot water heaters typically have an energy efficiency rating of 95% or higher. This means that they convert 95% or more of the energy they consume into heat for the water, resulting in minimal waste and lower energy bills. It is important to note that the energy efficiency rating may also depend on the size of the unit, the temperature of the incoming water, and the flow rate of the water. It is recommended to choose a hot water heater with an Energy Star certification, which ensures that the product meets or exceeds energy efficiency guidelines set by the United States Environmental Protection Agency. Additionally, regular maintenance and proper usage can also help improve the energy efficiency and prolong the lifespan of the electric instant hot water heater.

What is the maximum flow rate of the best electric instant hot water heaters?

The maximum flow rate of the best electric instant hot water heaters varies depending on the model and brand. Generally, electric instant hot water heaters have a lower flow rate compared to gas-powered units, but they are still efficient in providing hot water on demand. The flow rate of electric instant hot water heaters typically ranges from 1.5 to 5 gallons per minute (GPM).

Some of the best electric instant hot water heaters available in the market have a flow rate of up to 4 GPM. These models are suitable for small to medium-sized households that require hot water for a single shower or a sink. However, for larger households that require hot water for multiple showers or appliances simultaneously, a higher flow rate of 5 GPM or more may be needed.

It's important to note that the flow rate of electric instant hot water heaters can be affected by factors such as the incoming water temperature and the desired output temperature. It's recommended to consult with a professional plumber to determine the appropriate flow rate for your household needs.

What is the most reliable brand for electric instant hot water heaters?

There are several reliable brands for electric instant hot water heaters, but one of the most popular and trusted brands is Stiebel Eltron. Stiebel Eltron is a German company that has been in the business of making electric water heaters since 1924. They are known for their high-quality and energy-efficient water heaters, which are designed to provide hot water on demand.

One of the reasons why Stiebel Eltron is so reliable is because they use advanced technology and high-quality materials in their products. Their water heaters are built to last and are backed by a solid warranty. In addition, Stiebel Eltron has a reputation for excellent customer service, so if you do encounter any issues with your water heater, you can rest assured that the company will be there to help you.

Overall, if you're looking for a reliable brand for electric instant hot water heaters, Stiebel Eltron is definitely a top choice.

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