Best electric tankless water heater 2023

Are you considering buying an electric tankless water heater? You want a long-lasting, efficient, and powerful unit? Look no further! In this comprehensive guide, we will help you to choose the best electric tankless water heater that fits your needs and budget. We’ll discuss the important features and a few recommended models so you can make your best decision.

Best electric tankless water heater 2023

  1. Rheem Electric Water Heater
  2. Eemax EEM24013 Water Heater
  3. ECOTOUCH Water Heater
  4. Rheem RTEX-13 Water Heater

1)Rheem RTEX-24 Water Heater

Check Latest Price

The Rheem RTEX-24 Water Heater is an excellent choice for hot water needs. With a 5.9 gallon capacity and an adjustable digital power control, it provides an impressive 5.9 GPM of consistent output. The ON/OFF dial makes it easy to control the temperature and the electric elements can be adjusted for additional control.

It also has temperature sensors to deliver precise levels of hot water. The RTEX-24 offers easy installation and is incredibly energy efficient, resulting in lower energy costs. Overall, this is a great unit with features that many people will find helpful.

Check Latest Price

2)Stiebel Eltron Water Heater

Check Latest Price

The Stiebel Eltron 24 kW Tempra 24 Plus Water Heater delivers amazing performance with 18000 watts and 240V of power. The 24 kW delivers hot water at the perfect temperature in less time and with greater efficiency. Its temperature control is perfect with a range of 108° -109°F and its energy saver mode can help you save up to 20% on your energy bills, while still providing hot water on demand.

The 24 Plus is an exceptional choice for large households that require frequent hot water and want to save on energy costs. It has many appealing features such as quick temperature recovery, quiet operation, and excellent insulation. Overall the Stiebel Eltron Tempra 24 Plus is an energy efficient, high-powered water heater that provides hot water on demand.

Check Latest Price

3)Rheem Tankless Water Heater

Check Latest Price

The Rheem Tankless Water Heater is a great solution for my hot water needs. It has a capacity of 1.95 gallons and is powered by corded electric, delivering up to 8 kW of power. It comes with an On/OFF dial and a self-modulating temperature display, allowing me to easily adjust the temperature. The water heater is equipped with a 1/2 inch NPT connection and is the perfect size for a small space. Additionally, it has a digital temperature display so that I know exactly what the temperature of the water is.

I really appreciate the features and performance this water heater provides. It heats up water quickly and reaches the desired temperature in no time. I’m also impressed with how energy efficient it is and how well it manages to conserve energy. Overall, the Rheem Tankless Water Heater is a great choice for my hot water needs. It is easy to use and provides dependable performance. The size and energy efficiency make it a great investment for my home.

Check Latest Price

4)Rheem Electric Water Heater

Check Latest Price

This Rheem Electric Water Heater is a great choice for anyone looking for a quality, reliable water heating system. With a 3.5 gallon capacity, this water heater is capable of providing enough hot water for a small family. The corded electric power supply allows for the use of regular power outlets, and the RTEX04 heater is extremely efficient.

The sleek and stylish design of this water heater is sure to fit seamlessly in any home. Furthermore, this water heater comes with a thermostatically controlled heating system and a temperature and pressure relief valve for optimal safety and performance. Overall, this Rheem water heater is a great choice for anyone looking for a reliable, efficient and safe electric water heater.

Check Latest Price

5)Eemax EEM24013 Water Heater

Check Latest Price

The Eemax EEM24013 Water Heater is a great choice for those looking for a reliable, efficient, and compact water heater. The capacity of the tank is 13 gallons and is a corded electric type of water heater. The heater offers instant, consistent, and endless hot water, as it uses self-modulating technology.

This self-modulating technology ensures that there is no loss of hot water, so you won’t run out even when multiple taps are turned on. Furthermore, the heater is quite compact, which makes it a great option for small spaces. Overall, with its reliable performance, efficient technology, and compact size, the Eemax EEM24013 Water Heater is a great choice for anyone looking for an instant, consistent, and endless hot water supply.

Check Latest Price

6)ECOTOUCH Water Heater

Check Latest Price

The ECOTOUCH water heater is the perfect choice for a family. It consists of a 240 volt battery powered unit that produces sufficient hot water for use in the household. The SMART SELF technology allows the user to easily set up and monitor the temperature in the unit.

It also features a digital display that provides convenient use of the device. Lastly, the ECO55 model is designed to be energy efficient and ensures your monthly energy bills remain low. All in all, the ECOTOUCH water heater is an excellent product that is easy to use and provides reliable hot water for any family.

Check Latest Price

7)Rheem RTEX-13 Water Heater

Check Latest Price

The Rheem RTEX-13 Water Heater is a great choice for anyone looking for an efficient, simple water heating solution. This water heater features a 13 kW power output, making it ideal for most households. It is also battery-powered, making installation and maintenance easy. With a 1/2 inch compression, it is able to provide up to 54 A of power, providing hot water at an efficient rate. The simple installation of the Rheem RTEX-13 Water Heater makes it an ideal choice for anyone, even those with limited home improvement experience.

The ease of installation also means that it doesn’t require a professional to set it up. The 13 kW power makes it one of the most powerful electric water heaters on the market, meaning it can quickly and effectively heat large amounts of water. In addition, the size and shape of the unit make it convenient and aesthetically-pleasing when installed in any home. All in all, the Rheem RTEX-13 Water Heater offers great versatility and efficiency, making it an ideal choice for anyone looking to heat their home’s water.

Check Latest Price

Best electric tankless water heater 2023-Complete Buying Guide

Photo Source :

Tankless water heaters are becoming increasingly popular for homeowners looking for a way to save money. They are more efficient than traditional water tanks because they only heat the water that you need, when you need it. The latest electric tankless water heaters offer a wide range of features, giving users the ability to customize their hot water heating experience and save money on energy costs.

In this buying guide, we will cover everything you need to know about electric tankless water heaters. We will discuss the different types of electric tankless water heaters, their advantages and disadvantages, as well as cost-saving benefits and installation tips. By the end of this guide, you should have all the information necessary to choose the best electric tankless water heater for your home!

  • Different types of electric tankless water heaters
  • Advantages and disadvantages
  • Cost-saving benefits
  • Installation tips

Importance of a good water heater

The type of water heater you choose can greatly impact the quality and cost of day-to-day life in your household. By investing in a quality electric tankless water heater, you can look forward to unlimited hot water, longer lifespan, and potential energy savings of up to 50%. With these benefits in mind, it is important to understand the variety of features that make certain models superior to others, in order to make an informed decision when selecting a water heater.

When evaluating electric tankless water heaters, keep in mind that some special features may offer greater convenience and cost savings for your family. Heaters with digital displays offer easily adjustable temperature settings for precision control. If you’re looking for energy efficiency, high-efficiency heaters are designed with enhanced insulation for reduced stand-by energy loss. Low flow models are also available for locations with limited space or low demand requirements. Finally, built-in recirculation pumps help provide instant hot water without sacrificing insulation from the external environment.

Selecting the right electric tankless water heater is key to ensuring consistent hot running water year round while staying within budget– so it’s essential to take all these factors into consideration before making a purchase!

Purpose of the guide

Photo Source :

This guide aims to provide the reader with an in-depth understanding of the best electric tankless water heaters available for 2021-2022, and to help them make an informed decision when choosing the right product for their needs.

Here, readers will find reviews of different models on the market, as well as a comprehensive guide explaining what features are important, what factors should be considered before buying a tankless water heater, and where to buy. The goal of this guide is to enable people to make a well-informed purchase that will help them save money while achieving excellent performance.

Types of Electric Tankless Water Heaters

When it comes to electric tankless water heaters, there are a few different types you should consider. The right choice for you will depend mainly on the size of your home or building and the climate in which you live.

  1. On-demand water heaters: Also known as “instantaneous” or “point-of-use” water heaters, these electric models are designed to provide hot water as needed, whenever it is called for. They provide hot water quickly and consistently without wasting energy heating large amounts of stored water. On-demand electric tankless water heaters are ideal for households who want instantaneous hot water with no wait.
  2. Whole House Electric Tankless Water Heaters: These larger units typically feature two heating elements and come in both indoor and outdoor varieties. They provide enough hotwater to accommodate multiple appliances simultaneously without sacrificing performance. They also require a dedicated circuit, so be sure to consult an electrician for proper installation.
  3. Tankless Water Heater Boosters: These small devices can be installed near fixtures like showers or sinks that require higher flow rates than what could normally be provided by an electric tankless hotwater heater alone (such as 2 GPM or higher). By boosting the flow rate of the heater, they effectively act as a supplement to your existing tankless system – increasing its overall performance while providing ample heated water where needed most (like kitchen sinks).

Point of Use (POU)

Point-of-use tankless electric water heaters (POU) are designed for occupied spaces that need hot water on demand. Installed directly at the fixture, POU electric tankless water heater heaters provide hot water quickly and reliably without the need to operate a full-sized unit. Generally, a point of use (POU) heater is ideal when you require a one or two fixtures at a time and don’t want to wait for your existing water heater to warm up.

Some of the most common applications include installations beneath kitchen sinks, laundry racks, bar sinks and in bathrooms – anywhere you require hot water on demand. Furthermore, due to their efficiency and ease of installation, electric POU tankless heaters are often integrated into large-scale commercial deployments in addition to catering for single households.

These tankless electric units are generally rated from 5 kW up to 28kW depending on desired flow rate and requirements. An additional benefit is that many come with digital temperature control pads which allow users to adjust the temperature from 0°F – 140°F increments of 1°F enabling ultimate flexibility and comfort for individual showering needs.

Whole House

Whole house electric tankless water heaters are a great option for any homeowner who needs to supply hot water not only to a kitchen sink, but also other fixtures like showers, bathtubs, and laundry appliances. These units are highly efficient, with some boasting of energy savings up to 50%. They also provide hot water on demand without the need for preheating. Unlike tank-based models, which require large amounts of stored hot water ready for dispensement at any time, electric tankless systems use an electric heating element embedded in the unit itself.

When tapped into your home’s plumbing system, cold water enters these heating systems and is heated in the heating elements as it passes through on its way to the faucets or other point of use. Tankless electric systems can even be used outdoors for washing cars or hoses and decks. While their initial installation cost can be higher than those of a traditional storage tank heater, the overall costs are usually justified by their energy saving features and convenience. These whole house models are preferred over regular 110V wall plug adapters due to their higher wattage capabilities (up to 6kW) which make up for slower warm-up times due to lower watts per square inch in comparison.

Factors to Consider When Buying an Electric Tankless Water Heater

Before selecting an electric tankless water heater, it’s important to consider the following factors:

  1. Size and Capacity: One of the most important considerations when selecting an electric tankless water heater is its capacity. The size of your household and the specific hot water needs will determine the capacity you need. A larger model would be better for multiple showers or baths running at once, while a smaller model would be ideal for single-use applications.
  2. Voltage: Electric tankless water heaters typically operate on either 120 volts or 240 volts of power. Generally speaking, the more powerful 240 volt models are able to generate higher amounts of watts to efficiently heat multiple bathrooms or showers at once.
  3. Energy Efficiency: The energy efficiency of an electric tankless water heater can greatly vary depending on a variety and combinations of factors such as weather and location. Choosing a model with high energy efficiency rating (EF ratings) will ensure that you save money in the long run by reducing your monthly utility bills.
  4. Easy Installation: Easy installation is often overlooked when searching for an electric tankless water heater due to focusing on price point, power rating and expected hot water delivery rate instead. It’s important to make sure that you choose a heater with easy-to-follow instructions so that installation can go as smoothly as possible, without expert assistance (save money!).
  5. Control Options: Many modern electric tankless water heaters come with different control options that may include adjustable temperature settings, digital display for diagnostics or remote access for controlling temperature from anywhere in your home (or even outside). Having these options allows you to customize and tailor settings based on your hot water needs in order to get maximum efficiency from your unit.

Flow Rate

The flow rate is one of the most important factors in deciding whether an electric tankless water heater is the right choice for you. The flow rate is typically measured in gallons per minute (GPM). This is a measure of how much hot water can be provided to multiple outlets simultaneously. It’s important to calculate the GPM of your appliance against the needs of your family, including the types and number of fixtures, as well as local regulations regarding flow rate.

Generally, electric tankless water heaters are sold with a minimum flow rating between 0.5 and 2 GPM. High-flow rates may range from 3 to 6 GPM or higher depending on the model and size of the unit being purchased. To determine how much hot water your family needs at once, calculate a total GPM by adding together all GPM numbers associated with each fixture/outlet.

Temperature Rise

One of the most important aspects of selecting a tankless water heater is finding one that offers the exact temperature rise you need. The temperature rise refers to how much the water heater can increase the temperature of incoming cold water as it enters your home.

You should always choose a tankless heater that has a very close or identical temperature rise to what you need. For example, if your home needs temperatures up to 120°F for pin-hot showers or washing hands, you should look for a tankless water heater (with the same GPM rating) that states it offers “up to 140°F” at its peak performance – this means it can achieve temperatures up to 20 degrees hotter than what is necessary. This allows you adequate hot water in periods of peak demand.


When selecting an electric tankless water heater, size is a critical consideration. A unit that’s too large will cost more than you need to spend and may be underused. A unit that’s too small won’t be efficient and will fail to provide enough hot water when you need it.

To determine what size unit you need, calculate the maximum hot water demand for your home or business. This includes the flow rate and temperature rise for all of the hot-water applications in your space. Keep in mind that most electric tankless heaters provide up to 2 gallons per minute (GPM) of hot water when operating at full capacity; larger units may be needed if multiple simultaneous showers or faucets are running with temperature rise greater than 8 degrees Fahrenheit (F).

In addition, consider past trends in usage as well as expectations of increased demand due to growth or expansion plans. Also think about seasonal changes, such as vacations when there could be a surge in demands. Keeping these factors in mind will ensure you select the right size heater for your needs.


When shopping for an electric tankless water heater, there are plenty of factors to consider. Depending on your needs, you’ll likely have to balance cost, energy efficiency, warranty and customer service. The best electric tankless water heaters can provide hot water almost instantly and last for more than a decade with careful maintenance. However, some models sacrifice features or power to reduce their price and might not be suitable for homes with larger families or those that use large amounts of hot water on a regular basis.

By doing your research and weighing all the available options, you should be able to find the perfect electric tankless water heater for your needs in 2023. Be sure to read consumer reviews and pay special attention to customer service ratings when making your purchasing decision – when something goes wrong with a complicated appliance like an electric tankless water heater, it’s essential that you have the proper support in place.


Which tankless water heater is most reliable?

It depends on many factors such as the local water conditions and the size of the unit. Generally speaking, tankless water heaters from reputable companies such as Rheem, Noritz, and Takagi are considered reliable.

What brand of electric water heater is the most reliable?

The most reliable electric water heaters depend on user preference and the type of water heater needed. Popular brands include A.O. Smith, Rheem, Bradford White, and State Water Heaters, all of which have high customer satisfaction ratings.

How to choose electric tankless water heater?

  1. Consider the size of your family and calculate the hot water demand accordingly. Make sure you choose an electric tankless water heater that can handle the hot water needs of your household.2. Consider the water pressure at your location. Tankless water heaters need to have enough water pressure to effectively deliver hot water.3. Select a unit with an high energy factor (EF). The EF rating is an indicator of how much energy the heater uses to produce hot water. The higher the rating, the more efficient the unit.4. Consider additional features such as recirculation pumps, automatic shut-off and smart thermostats.5. Check the warranty offered by the manufacturer and make sure you know what type of service and repairs are covered.

What is the number 1 hot water heater?

The Rheem Performance Platinum 50-Gallon Natural Gas Water Heater is widely considered to be the top rated hot water heater.

What is the lifespan of an electric tankless water heater?

The typical lifespan of an electric tankless water heater is between 10-20 years. However, this can depend on usage and maintenance.

What is the most common problem with electric water heaters?

The most common problem with electric water heaters is a faulty thermostat or heating element. This can cause the water heater to fail to maintain the desired temperature or to heat the water at all. It can also cause the water heater to act erratically, turning on and off randomly.

Which company is better for water heater?

The best company for water heaters depends on a variety of factors, such as budget, desired features, and maintenance needs. Some popular and well-reviewed brands of water heaters include Rheem, A.O. Smith, State, Bradford White, and GE. Depending on your needs, research and consult with experts to determine which water heater is right for you.

Which brand water heater is best?

The best water heaters depend on your own circumstances and preferences. Some of the more popular brands include Rheem, A.O. Smith, Bosch, Bradford White, Lochinvar, and Navien.

Are electric tankless water heater good?

Yes, electric tankless water heaters can be a great option for any household. They offer a number of benefits including, lower operational costs, an endless hot water supply, and taking up less space than traditional hot water tanks. That being said, they are not the best option for every situation and should be carefully compared to other options before making a decision.

Which is the safest water heater?

The safest water heater is one that has been maintained and installed properly according to local code requirements and the manufacturer’s instructions. Options such as electric, propane, oil, solar, and natural gas can all be safe when set up properly.

Leave a Reply