Best Electric Tankless Water Heaters 2023: Top 9 Picks” -> “Top 9 Picks: Best Electric Tankless Water Heaters 2023


Have you ever wished for an endless supply of hot water without the hassle of a bulky traditional water heater? Tankless units are the perfect solution. These use heaters provide enough flow rate to ensure a constant supply of hot water, making them ideal for shower use. Imagine never running out of hot water again with tankless units, no matter how many showers, dishes, or laundry loads you need to tackle. Tankless heaters provide enough flow rate for the whole house. Well, your wish for a tankless water heater can come true with the Stiebel Eltron DHC electric models. These electric units are a great alternative to gas models and can provide hot water in an instant. With varying watts options available, you can enjoy a relaxing shower without worrying about running out of hot water.

These tankless heaters, including gas models, are energy-efficient alternatives to standard tanks. They provide instant hot water on demand, eliminating the need for storing and reheating large quantities of water. Use the heater for efficient heating. With their compact design and efficient indoor power source, electric tankless water heaters are perfect for any size home or apartment. These heaters have a high efficiency rating and run on natural gas, providing a reliable source of hot water while saving on energy costs.

Say goodbye to waiting for the water to heat up or wasting energy keeping a full tank warm throughout the day with tankless heaters. These natural gas heaters provide instant hot water without the need for a storage tank, saving you time and energy. They are efficient and powerful, with a total BTU that ensures a continuous supply of hot water whenever you need it. Electric tankless heaters use an indoor power source to heat water as it flows through a heating element, providing hot water on demand. These units are measured in watts and total BTU. And if electric water heaters are more your style, there are also electric tankless options available to heat water. Additionally, these electric water heaters can provide consistent water pressure and flow.

Get ready to experience the convenience and efficiency of electric tankless water heaters, which provide instant hot water while using less power. With their high wattage, these heaters can quickly heat water, saving you time and reducing your total BTU consumption. Say farewell to cold showers and hello to endless hot water with our high-performance heaters! Our heaters are designed to provide the perfect amount of watts and BTU to ensure a constant supply of hot water. No more worrying about running out of hot water during your shower. With our heaters, you can enjoy a steady GPM flow and the total BTU output you need for a comfortable and uninterrupted hot water experience.

Factors to Consider When Choosing an Electric Tankless Water Heater

Flow rate and temperature rise capacity

When selecting the best electric tankless water heaters for your home, it’s crucial to consider their flow rate, expressed in gallons per minute (GPM), and their temperature rise capacity, measured in watts. These factors determine the total BTU output of the heaters. The flow rate of the heaters determines the amount of hot water the product can deliver at a given time, while the temperature rise capacity indicates the heater’s ability to increase the incoming water temperature to your desired level. Watts and GPM are important factors to consider when choosing a heater.

To determine the appropriate gpm flow rate for your household heaters, consider your hot water needs in inches and btu. Evaluate how many electric water heaters, appliances or fixtures will be running simultaneously, such as showers, faucets, or washing machines to ensure optimal water pressure, heat water, and water flow. If you have high hot water demand, opt for heaters with a higher GPM to ensure an uninterrupted supply of BTU.

Pay attention to the temperature rise capacity of the electric tankless water heaters. Consider the GPM and BTU ratings to ensure the heater can provide the desired hot water output. Measure the length in inches to ensure proper installation. This factor is especially important if you use heaters and live in colder climates where the incoming water temperature is lower. The heaters should have a high BTU and GPM to effectively warm the water. Ensure that the natural gas tankless water heaters can adequately raise the temperature of cold water to meet your requirements. Check the btu to determine if it is suitable for your use.

Size and installation requirements

Another vital consideration when choosing electric tankless water heaters is the size and installation requirements. The GPM and use of these heaters should also be taken into account. Unlike traditional storage tank heaters, tankless models are compact and space-saving. They use cold water. However, when choosing a tankless water heater, it’s important to select a unit that fits well within your available space. These style water heaters are designed to efficiently heat water without the need for a storage tank.

Before purchasing tankless water heaters, measure the area where you plan to install them. Take into account any clearance requirements specified by the manufacturer for proper ventilation and maintenance access when installing a tankless water heater. Keep in mind that some tankless water heaters units may require additional electrical upgrades due to their power demands. Style water heater

Furthermore, assess whether you prefer an indoor or outdoor installation for your tankless water heater. Outdoor tankless water heaters eliminate any concerns about venting or indoor space constraints but may require protection from freezing temperatures in colder climates. This style water heater is a great solution for those looking for convenience and efficiency.

Energy efficiency ratings for cost savings

Energy efficiency plays a significant role in reducing utility bills associated with heating water. When evaluating electric tankless water heaters, look for models with high energy efficiency ratings. These ratings indicate how effectively the unit converts electrical energy into hot water.

Energy efficiency is typically measured by the Uniform Energy Factor (UEF) or Energy Factor (EF) of tankless water heaters. The higher the UEF or EF, the more efficient tankless water heaters are. Opting for an energy-efficient electric tankless water heater not only reduces your environmental footprint but also saves you money in the long run.

Consider models with advanced features such as modulating elements that adjust power usage based on hot water demand. These units can provide additional cost savings by minimizing energy consumption during periods of low hot water usage.

Ecosmart Eco – A Wide Range of Models for Different Household Sizes

Ecosmart Eco is a leading brand. One of the key advantages of the Ecosmart Eco line is its wide range of models, designed to cater to different household sizes and hot water demands. Whether you have a small apartment or a large family home, there’s an Ecosmart Eco model of tankless water heaters that will suit your needs perfectly.

With the Ecosmart Eco line, you can choose from various electric tankless water heaters models that offer exceptional performance and energy efficiency. These water heaters are compact in size, making them ideal for saving space in your home. Plus, their sleek design adds a touch of modernity to any setting, making water heaters the perfect addition to any space.

The beauty of Ecosmart Eco electric tankless water heaters lies in their ability to provide hot water on demand. Gone are the days when you had to wait for the water to heat up or worry about running out during peak usage times. With an Ecosmart Eco unit installed, you’ll have a continuous supply of hot water whenever you need it.

Rheem RTEX – Precise Temperature Control and Durable Construction

If precise temperature control and durability are what you seek in an electric tankless water heater, look no further than the Rheem RTEX series. These high-quality water heaters combine cutting-edge technology with robust construction to deliver outstanding performance.

The Rheem RTEX line boasts advanced temperature control features that allow you to set your desired hot water temperature with precision. No more guessing games or sudden shocks of cold or scalding water! You can enjoy consistent and comfortable showers every time.

Durability is another standout feature of the Rheem RTEX series of water heaters. Built with sturdy materials and engineered for longevity, these electric tankless water heaters are designed to withstand years of heavy use without compromising performance. You can have peace of mind knowing that your Rheem RTEX unit will continue to provide reliable hot water for years to come.


Reviews and Ratings: Noritz NRC DV, Stiebel Eltron Tempra Plus, Rheem Performance Plus

The market for electric tankless water heaters is filled with numerous options, making it challenging to find the best one for your needs. To help you make an informed decision about water heaters, we have reviewed three top-rated models: the Noritz NRC DV water heater, Stiebel Eltron Tempra Plus water heater, and Rheem Performance Plus water heater. Let’s delve into the features of water heaters and see how they stack up against each other.

Noritz NRC DV: High Flow Rate and Advanced Features

One of the standout features of the Noritz NRC DV water heaters is its impressive flow rate. With a maximum flow rate of X gallons per minute (GPM), this unit ensures that you will never run out of hot water during peak demand periods. Whether you have a large family or frequently host guests, the NRC DV can meet your hot water needs effortlessly.

In addition to its high flow rate, the Noritz NRC DV water heaters boast advanced features that enhance their performance and convenience. Its digital temperature controller allows precise adjustments to ensure your water is always at the perfect temperature. The water heaters unit also incorporates self-diagnostic capabilities, which can detect any issues early on and provide error codes for easy troubleshooting.

Stiebel Eltron Tempra Plus: Consistent Hot Water Supply and Quiet Operation

If you value a consistent hot water supply and quiet operation in your tankless water heater, then look no further than the Stiebel Eltron Tempra Plus. This model utilizes advanced technology to maintain a steady output temperature regardless of fluctuations in incoming water flow or pressure.

Moreover, the Tempra Plus water heaters operate silently thanks to its innovative design that minimizes noise during operation. You can enjoy hot showers without any disruptive sounds from your water heater.

Rheem Performance Plus: Reliability and Performance

The Rheem Performance Plus is highly regarded for its reliability and performance. Built with durability in mind, this unit is designed to last for years without compromising on efficiency. It offers a reliable hot water supply, ensuring that you never have to worry about running out during your daily routines.

Furthermore, the Performance Plus boasts impressive energy efficiency ratings, which can help reduce your utility bills while minimizing your environmental footprint. With its advanced features and solid construction, Rheem has created a tankless water heater that delivers both reliability and performance.

Top Gas Options: Rinnai RLIN, Rinnai RUIN, Rheem Prestige

Gas models can offer a reliable and efficient alternative.

Rinnai RLIN: High-Efficiency Gas Tankless Water Heating with Low Emissions

The Rinnai RLIN is a standout choice for those seeking high-efficiency gas tankless water heating systems. With its innovative design and advanced technology, this model ensures optimal performance while minimizing emissions. The key features of the Rinnai RLIN include:

  • Efficient Fuel Type: The RLIN runs on natural gas or propane, allowing homeowners to choose their preferred fuel type based on availability and personal preferences.
  • Superior Flow Rate: This model offers an impressive gallons-per-minute (GPM) rate, ensuring a continuous supply of hot water even during peak usage times.
  • Low Emissions: The RLIN is designed to reduce harmful emissions, making it an environmentally friendly option without compromising on performance.

With the Rinnai RLIN, you can enjoy the benefits of a high-efficiency gas tankless water heater that provides both comfort and peace of mind.

Rinnai RUIN: Superior Performance with Multiple Venting Options

For those looking for flexibility in venting options without compromising performance, the Rinnai RUIN is an excellent choice. This model combines superior functionality with various venting configurations to suit different installation requirements. Here’s what makes the Rinnai RUIN stand out:

  • Versatile Venting: Whether you need concentric or twin-pipe venting options, the RUIN offers flexibility to accommodate diverse installation scenarios.
  • Impressive Capacity: With a high GPM rate, the RUIN ensures a steady supply of hot water for multiple applications simultaneously, providing convenience for larger households.
  • Energy Efficiency: The RUIN is designed to maximize energy savings by only heating water when needed, resulting in reduced utility bills.

With its superior performance and adaptable venting options, the Rinnai RUIN is an ideal gas tankless water heater choice for those seeking customization and efficiency.

Rheem Prestige: Energy Efficiency with Advanced Technology for Optimal Comfort

The Rheem Prestige combines energy efficiency with advanced technology to deliver optimal comfort and reliability. This gas tankless water heater model offers a range of features that make it a top contender in the market:

  • Cutting-Edge Technology: The Prestige incorporates innovative technology that allows for precise temperature control and improved overall performance.
  • Smart Features: With built-in smart capabilities, this model enables remote monitoring and control through mobile devices, enhancing convenience and ease of use.
  • Enhanced Energy Savings: By utilizing advanced sensors and intelligent controls, the Prestige optimizes energy consumption, resulting in significant cost savings over time.

If you prioritize energy efficiency and modern conveniences without compromising on comfort, the Rheem Prestige is an excellent option worth considering.


Best Overall Electric Option: Rinnai RUIN Super High Efficiency Plus

The Rinnai RUIN Super High Efficiency Plus is undoubtedly the best overall electric tankless water heater option available. With its exceptional performance and energy savings, it stands out among its competitors in the market.

One of the key features that sets the Rinnai RUIN apart is its impressive efficiency rating. This unit operates with remarkable efficiency, ensuring that you make the most of your energy consumption while reducing your overall energy bills. It’s a win-win situation for both your wallet and the environment.

The Rinnai RUIN doesn’t disappoint. Equipped with advanced flow control technology, this tankless water heater offers precise temperature control and can provide an endless stream of hot water whenever you need it. Say goodbye to those frustrating moments when someone else in your household decides to take a shower while you’re in the middle of doing dishes – with the Rinnai RUIN, everyone can enjoy hot water simultaneously without any compromise.

Another standout feature is its high flow rate capability. The Rinnai RUIN boasts an impressive maximum flow rate, making it suitable for households that require a substantial amount of hot water on a regular basis. Whether you have a large family or simply enjoy indulging in long showers, this tankless water heater has got you covered.

Furthermore, this model is designed to be installed indoors and powered by electricity, making it a convenient option for homes without access to gas lines or those looking for an alternative solution. Its compact size allows for easy installation even in tight spaces.

If you live in an older house with outdated electrical systems, don’t fret – the Rinnai RUIN can handle it. With its ability to adapt to different electrical setups and breakers commonly found in older homes, upgrading to this electric tankless water heater becomes hassle-free.

Safety is also a top priority with the Rinnai RUIN. Equipped with a condensing unit, it efficiently removes any potentially harmful exhaust gases, ensuring clean and safe operation. Its maximum temperature control feature allows you to set the water temperature to your desired level, providing peace of mind for households with young children or elderly family members.

To summarize, the Rinnai RUIN Super High Efficiency Plus is the best overall electric tankless water heater option in terms of performance, energy savings, and convenience. Its exceptional efficiency rating, high flow rate capability, precise temperature control, and adaptability to various electrical systems make it an excellent choice for homeowners seeking a reliable and efficient hot water solution. Upgrade to the Rinnai RUIN today and experience endless hot water without compromising on comfort or sustainability.

Best Value Option: Ecosmart Eco Tankless Electric Water Heater

The Ecosmart Eco Tankless Electric Water Heater is the best value option for those seeking an efficient and affordable style water heater. With its innovative design and advanced features, this water heater offers a cost-effective solution without compromising on quality or efficiency.

One of the key advantages of the Ecosmart Eco is its ability to provide long-term cost savings through reduced energy consumption. Unlike traditional tank-based water heaters that continuously heat and store water, this tankless option only heats water on demand. This means that it doesn’t waste energy by constantly maintaining a large volume of hot water. Instead, it efficiently heats up the water as it passes through the unit, providing instant hot water whenever you need it.

By opting for the Ecosmart Eco, homeowners can significantly reduce their energy bills while enjoying an uninterrupted supply of hot water. The energy savings are particularly noticeable in households with high hot water usage or larger families. With traditional tank-based heaters, there is always a risk of running out of hot water after multiple showers or during peak usage times. However, with the Ecosmart Eco’s continuous flow design, you never have to worry about running out of hot water again.

Furthermore, this electric tankless water heater is designed with eco-friendliness in mind. Its efficient heating technology minimizes energy waste and reduces greenhouse gas emissions compared to conventional models. By choosing the Ecosmart Eco, you are not only saving money but also contributing to a greener future.

Another notable feature of the Ecosmart Eco is its compact size and easy installation process. Unlike bulky tank-based heaters that require significant space for installation and maintenance access, this sleek unit can be conveniently mounted on walls or placed in tight spaces. It also comes with detailed instructions and all necessary components for straightforward installation.

In terms of performance, the Ecosmart Eco delivers consistent and reliable hot water without any fluctuations in temperature. Its advanced heating elements ensure that the water is heated quickly and efficiently, providing a comfortable showering experience every time. This tankless water heater offers adjustable temperature settings, allowing you to customize the hot water output according to your preferences.

To summarize, the Ecosmart Eco Tankless Electric Water Heater is an excellent choice for those seeking the best value option. With its affordable price point, energy savings, eco-friendly design, and easy installation process, it ticks all the boxes for homeowners looking to upgrade their water heating system. Say goodbye to high energy bills and limited hot water supply – the Ecosmart Eco has got you covered!

Making the Right Choice for Your Needs

Congratulations! You’ve now learned about the factors to consider when choosing an electric tankless water heater, as well as some top recommendations and reviews. Armed with this knowledge, you’re ready to make an informed decision that suits your specific needs. So, what are you waiting for? It’s time to bring comfort and convenience into your home by investing in the best electric tankless water heater for you.

Choosing the right water heater is crucial for ensuring a constant supply of hot water while saving energy and money. By considering factors such as flow rate, temperature rise, and energy efficiency, you can find a unit that meets your household’s demands. Don’t forget to check out our recommended options like the Ecosmart Eco Tankless Electric Water Heater or Rheem RTEX series for reliable performance. Remember, making an informed choice will not only improve your daily life but also contribute to a greener future.



Can I install an electric tankless water heater myself?

Yes, it is possible to install an electric tankless water heater yourself if you have some basic plumbing knowledge and experience working with electrical connections. However, we recommend consulting a professional plumber or electrician to ensure proper installation and adherence to local codes.

How much money can I save with an electric tankless water heater?

The amount of money saved varies depending on factors such as your current energy usage, the efficiency of your old system, and the cost of electricity in your area. On average, switching to an electric tankless water heater can save homeowners up to 30% on their monthly energy bills.

Do I need to upgrade my electrical panel for an electric tankless water heater?

It depends on the electrical requirements of the specific model you choose and the capacity of your existing electrical panel. Some units may require additional amperage or voltage, which may necessitate an upgrade. It’s best to consult with a licensed electrician to assess your electrical panel’s capacity and make any necessary upgrades.

How long do electric tankless water heaters last?

Electric tankless water heaters generally have a lifespan of 20 years or more, depending on usage and maintenance. Regular descaling and flushing can help prolong their lifespan and ensure optimal performance.

Can an electric tankless water heater provide hot water to multiple fixtures simultaneously?

Yes, most electric tankless water heaters are designed to supply hot water to multiple fixtures simultaneously. However, the number of fixtures that can be supplied at once depends on the unit’s flow rate and temperature rise capabilities. Be sure to choose a model that meets your household’s peak demand for hot water.

Best Electric Tankless Water Heaters 2023: Top 9 Picks" -> "Top 9 Picks: Best Electric Tankless Water Heaters 2023

Discover the top 9 picks for the best electric tankless water heaters in 2023. Find the perfect choice for your home.