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Top Electric Tankless Hot Water Heater Reviews in 2022

Tankless water heaters are a popular choice for homeowners looking for an energy-efficient and space-saving solution to their hot water needs. In this article, we will provide comprehensive reviews of the top electric tankless hot water heaters. We will compare different models, discuss their features and specifications, and help you make an informed purchase decision. Whether you are looking for a durable and reliable tankless water heater or a high-performance and affordable option, we've got you covered.

Key Takeaways:

  • Electric tankless hot water heaters are energy-efficient and space-saving solutions for homeowners.
  • Our reviews will help you compare different models and make an informed purchase decision.
  • We cover a range of options, from durable and reliable to high-performance and affordable.
  • Rheem is a top-rated brand known for electric tankless water heaters.
  • Consider your specific needs and budget when choosing the best electric water heater for your home.

Best Overall: Stiebel Eltron Electric Tankless Water Heater

The Stiebel Eltron Electric Tankless Water Heater is our top pick for the best overall electric tankless water heater. It offers a high flow rate, delivering 1.5-4.5 gallons per minute (GPM) of hot water. The compact size of the unit ensures space-saving installation, and its intelligent self-modulating technology ensures ongoing energy savings. Additionally, it comes with a 7-year warranty against leaks, providing peace of mind for homeowners.

This electric tankless water heater from Stiebel Eltron is designed to provide a consistent and reliable supply of hot water for your home. With its high flow rate, it can easily meet the hot water demands of multiple faucets and showers simultaneously. Whether you have a small apartment or a large family home, this water heater is equipped to handle your needs.

The compact size of the Stiebel Eltron Electric Tankless Water Heater is a standout feature, allowing for flexible installation options. It can be mounted on the wall, saving valuable floor space. This makes it an ideal choice for homeowners with limited space or those who prefer a clean and uncluttered aesthetic.

In addition to its performance and size, the Stiebel Eltron Electric Tankless Water Heater is also energy-efficient. Its self-modulating technology adjusts the power consumption based on the water flow, reducing energy waste and saving you money on your utility bills. With this unit, you can enjoy the convenience of hot water while reducing your environmental impact.

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Best Whole-House: Rinnai Indoor Gas Tankless Hot Water Heater

The Rinnai Indoor Gas Tankless Hot Water Heater stands out as the best whole-house tankless water heater option. Powered by natural gas, it provides an exceptional high flow rate of 7.5 gallons per minute (GPM), making it ideal for medium- to large-sized homes. With its impressive capacity, this tankless water heater ensures that your household will never run out of hot water, even during peak usage times. Its ability to deliver a continuous supply of hot water to multiple fixtures simultaneously makes it a convenient choice for busy households.

In addition to its powerful performance, the Rinnai Indoor Gas Tankless Hot Water Heater offers a temperature lock feature. This feature ensures that accidental changes to the water temperature are prevented, providing a consistent and comfortable hot water experience throughout your home. Whether you're taking a shower, doing laundry, or washing dishes, you can trust that the water temperature will remain steady and reliable.

Rinnai Indoor Gas Tankless Hot Water Heater

In summary, the Rinnai Indoor Gas Tankless Hot Water Heater is the best choice for homeowners in need of a whole-house tankless water heater. Its natural gas power source, high flow rate, and temperature lock feature make it a reliable and efficient option for providing hot water to every corner of your home. With the Rinnai Indoor Gas Tankless Hot Water Heater, you can enjoy endless hot water without sacrificing performance or comfort.

Best Propane-Powered: Rinnai Outdoor Gas Tankless Hot Water Heater

When it comes to finding the best propane-powered tankless water heater for outdoor installations, the Rinnai Outdoor Gas Tankless Hot Water Heater is a top choice. With its lightweight design and advanced features, it offers the perfect combination of convenience and efficiency.

The Rinnai Outdoor Gas Tankless Hot Water Heater is designed specifically for outdoor use, making it an ideal solution for homes with limited indoor space or homeowners who prefer outdoor installations. Its compact and lightweight design, weighing only 33 pounds, ensures easy installation and portability.

One of the standout features of this tankless water heater is its Wi-Fi technology. With Wi-Fi capability, you can conveniently control and monitor the unit remotely, providing added convenience and flexibility. Whether you want to adjust the temperature settings or check the status of the water heater, it can all be done easily from your smartphone or tablet.

https://www.youtube.com/watch?v=FU9coieMM9Y

Key Features of the Rinnai Outdoor Gas Tankless Hot Water Heater:

  • Propane-powered: This water heater runs on propane, ensuring efficient heating and cost savings.
  • Outdoor installation: The unit is designed for outdoor installations, providing flexibility and convenience.
  • Lightweight design: Weighing only 33 pounds, the water heater is easy to install and move if needed.
  • Wi-Fi technology: With built-in Wi-Fi capability, you can control and monitor the water heater from your smartphone or tablet.
  • Low emissions: The Rinnai Outdoor Gas Tankless Hot Water Heater is approved by the South Coast Air Quality Management District for its low emissions.

Technical Specifications:

Flow Rate Temperature Range Dimensions (H x W x D) Weight Up to 9.8 GPM 98°F - 140°F 26.4" x 14.04" x 10.1" 33 pounds

With its outdoor installation capability, lightweight design, and Wi-Fi technology, the Rinnai Outdoor Gas Tankless Hot Water Heater is an excellent choice for homeowners in need of a propane-powered tankless water heater. It provides hot water on demand, offering both convenience and energy efficiency.

Most Efficient: EcoSmart ECO 18 Electric Tankless Water Heater

The EcoSmart ECO 18 Electric Tankless Water Heater is widely regarded as the most efficient tankless water heater on the market today. With its innovative features and superior performance, it offers homeowners a reliable and energy-saving solution for their hot water needs.

The EcoSmart ECO 18 has a medium capacity, providing a flow rate between 1.8 and 4.3 gallons per minute (GPM). This ensures a steady supply of hot water for your entire home, whether it's for daily showers, laundry, or dishes. With its digital display and temperature control, you can easily adjust the water temperature to your desired comfort level.

One of the standout features of the EcoSmart ECO 18 is its high energy efficiency. It can help homeowners save up to 60% on their water-heating costs compared to traditional tank water heaters. This eco-friendly option not only benefits your wallet but also the environment.

Furthermore, the EcoSmart ECO 18 comes with a lifetime warranty for residential use, providing you with peace of mind and long-term protection for your investment. With its advanced technology and superior performance, this electric tankless water heater is the ideal choice for those seeking both efficiency and reliability.

Key Features of the EcoSmart ECO 18 Electric Tankless Water Heater Feature Description Flow Rate 1.8-4.3 GPM Capacity Medium Digital Display Allows for easy temperature adjustment Lifetime Warranty Provides long-term protection

With its impressive efficiency, medium capacity, digital display, and lifetime warranty, the EcoSmart ECO 18 Electric Tankless Water Heater is the top choice for homeowners looking for a reliable and energy-saving solution. Say goodbye to cold showers and high energy bills and enjoy a continuous supply of hot water with this exceptional water heater.

EcoSmart ECO 18 Electric Tankless Water Heater

Best Tankless Water Heater for Small Households: EcoSmart ECO 11 Electric Tankless Water Heater

https://www.youtube.com/watch?v=Vy664vbMdJ0

If you have a small household with low hot water demands, the EcoSmart ECO 11 Electric Tankless Water Heater is the perfect choice. With its low flow rate, compact size, and easy setup, it is specifically designed to meet the needs of smaller households.

The EcoSmart ECO 11 Electric Tankless Water Heater has a flow rate of 1.3-3.1 gallons per minute (GPM), ensuring that you have a steady supply of hot water for your daily activities. Its compact size allows for easy installation in tight spaces, and it is 90% smaller than traditional tank heaters, saving valuable space in your home.

Setting up the EcoSmart ECO 11 Electric Tankless Water Heater is hassle-free, thanks to its easy installation process. It comes with detailed instructions and all the necessary components, allowing you to get it up and running quickly. Plus, its advanced self-modulating technology ensures energy-efficient operation, saving you money on your energy bills.

Best Value: Rheem Tankless Electric Water Heater

When it comes to finding the best value tankless water heater, the Rheem Tankless Electric Water Heater is a top contender. With its efficient design and reliable performance, it offers hot water on-demand while minimizing electricity usage. This compact-size unit is perfect for homeowners who are looking to save space without sacrificing functionality.

One of the key advantages of the Rheem Tankless Electric Water Heater is its ability to provide hot water whenever you need it. Instead of constantly heating and storing hot water like traditional tank water heaters, this tankless option only heats water as it flows through the unit. This not only saves energy but also ensures that you never run out of hot water.

"The Rheem Tankless Electric Water Heater is an excellent choice for homeowners who value both efficiency and affordability. With its compact size and on-demand hot water, it's a reliable and cost-effective solution for any home."

Despite its compact design, this tankless water heater is capable of delivering a substantial amount of hot water. It has a maximum flow rate of up to 8 gallons per minute, making it suitable for households with multiple hot water needs. Whether you're running multiple showers or appliances simultaneously, the Rheem Tankless Electric Water Heater can keep up with the demand.

In addition to its performance, the Rheem Tankless Electric Water Heater comes with the added benefit of easy installation. As an electric unit, it doesn't require any venting, allowing for more flexible placement options within your home. This versatility, combined with its low electricity usage and affordable price point, makes it the best value tankless water heater on the market.

Features and Specifications

Feature Specification Flow Rate Up to 8 gallons per minute Power Source Electric Size Compact Installation No venting required Warranty Standard manufacturer warranty

Compare Top-Rated Tankless Water Heaters

In this section, we will compare the top-rated tankless water heaters mentioned in the previous sections. We will provide a side-by-side comparison of their flow rate, heat capacity, warranty, weight, and dimensions. This comparison will help you make an informed decision and choose the tankless water heater that best suits your needs and preferences.

Table: Top-Rated Tankless Water Heater Comparison

Brand Model Flow Rate (GPM) Heat Capacity (kW) Warranty Weight (lbs) Dimensions (inches) Stiebel Eltron Tankless Water Heater 1.5-4.5 7.2 7 years 8.5 4.6 x 16.6 x 14.5 Rinnai Indoor Tankless Hot Water Heater 7.5 9.4 12 years 46 9.3 x 14 x 23 Rinnai Outdoor Tankless Hot Water Heater 7.5 10 12 years 33 9.6 x 14 x 23 EcoSmart ECO 18 Electric Tankless Water Heater 1.8-4.3 18 Lifetime 11.25 17 x 17 x 3.75 EcoSmart ECO 11 Electric Tankless Water Heater 1.3-3.1 13.5 Lifetime 6.5 11.5 x 8 x 3.75 Rheem Tankless Electric Water Heater 0.7-5.9 8 5 years 7 7.25 x 7.25 x 13.75

Please note that the flow rate is measured in gallons per minute (GPM) and indicates the amount of hot water the unit can deliver. The heat capacity is measured in kilowatts (kW) and represents the power output of the heater. The warranty duration, weight, and dimensions can vary depending on the brand and model.

When comparing tankless water heaters, it's important to consider your household's hot water needs and the available installation space. Factors such as the number of bathrooms, simultaneous hot water demands, and preferred power source (electric or gas) should also be taken into account. Additionally, pay attention to the warranty coverage and any additional features that may enhance the user experience.

By evaluating the specifications and features of each tankless water heater, you can determine the best option for your home. Whether you prioritize high flow rates, energy efficiency, or compact size, there is a top-rated tankless water heater that meets your requirements.

Best Tankless Water Heater Overall: Stiebel Eltron Electric Tankless Water Heater

The Stiebel Eltron Electric Tankless Water Heater is our top pick for the best tankless water heater overall. It offers a high flow rate and compact size, making it an efficient and space-saving option for any home. With its energy-saving features and memory settings, this water heater not only provides hot water on demand but also helps you save on your energy bills. The unit operates silently, ensuring a peaceful environment in your home while still delivering consistent hot water.

“The Stiebel Eltron Electric Tankless Water Heater is the perfect choice for homeowners who prioritize both performance and efficiency. Its high flow rate and compact size make it an ideal solution for homes of all sizes, while its energy-saving features and memory settings ensure that you can enjoy hot water whenever you need it without wasting energy. Plus, its silent operation adds an extra level of comfort to your home.”

With its sleek and modern design, the Stiebel Eltron Electric Tankless Water Heater not only meets your hot water needs but also adds a touch of style to your home. It is easy to install and maintain, and its durable construction ensures long-lasting performance. Whether you have a small household or a larger family, this tankless water heater provides the perfect balance of efficiency, convenience, and reliability.

Key Features:

  • High flow rate for efficient hot water delivery
  • Compact size for space-saving installation
  • Energy-saving features for reduced energy consumption
  • Memory settings for personalized temperature control
  • Silent operation for a quiet and peaceful environment

Flow Rate Power Source Dimensions (H x W x D) Weight Warranty 1.5-4.5 GPM Electric 14.5" x 16.6" x 4.6" 19.6 lbs 7 years

Customer Reviews:

"I couldn't be happier with my Stiebel Eltron Electric Tankless Water Heater. It provides a steady flow of hot water, and the compact size is perfect for my small home. The energy-saving features have helped me reduce my utility bills, and I love that it operates silently. Highly recommended!"
"This water heater is a game-changer. It heats up water quickly and efficiently, and the memory settings allow me to have my preferred temperature every time. The compact size is a bonus, as it doesn't take up much space. I'm very satisfied with my purchase."

Best Whole-House Water Heater: Rinnai Indoor Tankless Hot Water Heater

When it comes to finding the best whole-house tankless water heater, the Rinnai Indoor Tankless Hot Water Heater stands out as the top choice. With its high flow rate, scale detection feature, and temperature lock, this water heater provides the perfect solution for households with high hot water demands.

One of the key advantages of the Rinnai Indoor Tankless Hot Water Heater is its high flow rate. With a capacity of up to 7.5 gallons per minute (GPM), it can easily meet the hot water needs of medium- to large-sized homes. Whether you have multiple bathrooms or simultaneous hot water requirements, this water heater ensures a consistent and reliable supply of hot water throughout your entire house.

In addition to its impressive flow rate, the Rinnai Indoor Tankless Hot Water Heater is equipped with a scale detection feature. This innovative technology detects and prevents the accumulation of scale and mineral deposits, ensuring optimal performance and longevity of the unit. By reducing scale buildup, this water heater maintains its efficiency and keeps your hot water flowing smoothly.

Furthermore, the temperature lock feature adds another layer of convenience and safety. Once you set your desired water temperature, the temperature lock ensures that it remains consistent, eliminating the risk of accidental temperature changes. This feature is particularly beneficial for households with children or elderly individuals, providing peace of mind and a comfortable hot water experience for everyone in your home.

Key Features of the Rinnai Indoor Tankless Hot Water Heater:

  • High flow rate of up to 7.5 GPM
  • Scale detection technology for optimal performance
  • Temperature lock feature for consistent water temperature

Customer Reviews:

"The Rinnai Indoor Tankless Hot Water Heater has been a game-changer for our family. We never run out of hot water, no matter how many showers or appliances are in use. The scale detection feature keeps the unit running smoothly, and the temperature lock gives us peace of mind. Highly recommend!" - Jane D.
"We recently upgraded to the Rinnai Indoor Tankless Hot Water Heater, and it's been fantastic. The high flow rate is perfect for our large household, and the temperature lock ensures a consistent hot water experience. It's definitely the best whole-house tankless water heater we've ever had." - Mark T.

If you're in need of a reliable and efficient whole-house tankless water heater, look no further than the Rinnai Indoor Tankless Hot Water Heater. With its high flow rate, scale detection technology, and temperature lock feature, it delivers consistent and comfortable hot water throughout your entire home.

Best Propane-Powered Water Heater: Rinnai Outdoor Tankless Hot Water Heater

When it comes to choosing a propane-powered tankless water heater for outdoor installation, the Rinnai Outdoor Tankless Hot Water Heater is the best option available. With its lightweight design and advanced Wi-Fi technology, this water heater offers convenience and efficiency for homeowners.

The Rinnai Outdoor Tankless Hot Water Heater is specifically designed for outdoor installation, making it a perfect choice for those who don't have space for indoor installation or prefer an outdoor setup. Its lightweight construction ensures easy installation, and its compact size allows it to blend seamlessly into any outdoor space.

One of the standout features of this water heater is its Wi-Fi technology, which allows for remote control and monitoring. With the Rinnai Control-R 2.0 mobile app, homeowners can easily adjust temperature settings, turn the unit on or off, and receive maintenance alerts right from their smartphones or tablets.

With its propane-powered functionality, outdoor installation capability, lightweight design, and Wi-Fi technology, the Rinnai Outdoor Tankless Hot Water Heater offers unmatched convenience and efficiency for homeowners.

Overall, the Rinnai Outdoor Tankless Hot Water Heater is the top choice for a propane-powered tankless water heater. Its outdoor installation capability, lightweight design, and advanced Wi-Fi technology make it a reliable and convenient option for providing hot water on demand. Whether you need hot water for outdoor showering, gardening, or other outdoor activities, this water heater delivers reliable performance and efficiency.

Most Efficient Water Heater: EcoSmart ECO 18 Electric Tankless Water Heater

The EcoSmart ECO 18 Electric Tankless Water Heater is widely regarded as the most efficient tankless water heater on the market. With its medium capacity and energy-saving features, it offers homeowners significant savings on water-heating costs while providing a reliable and consistent supply of hot water.

This tankless water heater is designed for point-of-use installation, ensuring that hot water reaches you quickly and minimizing water waste. Its compact and wall-mounted design saves valuable floor space, making it an excellent choice for homeowners with limited space. Moreover, the EcoSmart ECO 18 is equipped with advanced self-modulating technology, which adjusts the energy consumption based on the demand for hot water, further enhancing its energy efficiency.

With its outstanding performance, the EcoSmart ECO 18 Electric Tankless Water Heater meets the needs of medium-sized households, providing a flow rate sufficient for multiple showers and appliances running simultaneously. Its reliable and durable construction, combined with a comprehensive warranty, ensures peace of mind for homeowners. Additionally, the EcoSmart ECO 18 is backed by excellent customer reviews, further confirming its status as the most efficient tankless water heater in its class.

Key Features of the EcoSmart ECO 18 Electric Tankless Water Heater:

  • Medium capacity suitable for medium-sized households
  • Energy-saving design for up to 60% cost savings
  • Point-of-use installation for quick hot water delivery
  • Self-modulating technology for optimal energy efficiency
  • Compact and wall-mounted design for space-saving installation
  • Comprehensive warranty for added peace of mind

In summary, the EcoSmart ECO 18 Electric Tankless Water Heater is the top choice for homeowners seeking the most efficient water heating solution. With its medium capacity, energy savings, point-of-use installation, and reliable performance, it is an investment that pays off in terms of both convenience and cost savings. Choose the EcoSmart ECO 18 for an efficient, durable, and environmentally friendly water heating solution for your home.

Conclusion

After conducting comprehensive reviews of the top electric tankless hot water heaters, we can confidently recommend these energy-efficient and durable options for your home. Our analysis took into account factors such as performance, efficiency, and customer satisfaction, ensuring that you make an informed decision.

When it comes to the best electric tankless water heater overall, the Stiebel Eltron Electric Tankless Water Heater stands out. With its high flow rate, compact size, and energy-saving features, it provides a reliable and efficient solution for your hot water needs.

If you're looking for a whole-house tankless water heater, the Rinnai Indoor Tankless Hot Water Heater is our top pick. With its high flow rate and temperature lock feature, it can provide consistent hot water throughout your home, ensuring comfort and convenience for your entire family.

For those who prefer a propane-powered option and outdoor installation, the Rinnai Outdoor Tankless Hot Water Heater is the best choice. Its lightweight design, Wi-Fi technology, and low emissions make it a versatile and eco-friendly solution for outdoor spaces.

Overall, these electric tankless hot water heaters offer the perfect combination of energy efficiency, durability, and performance. We hope this article has helped you in your search for the best electric tankless water heater for your home.

FAQ

What are the advantages of a tankless water heater?

Tankless water heaters are energy-efficient, space-saving, and provide hot water on demand.

How does the Stiebel Eltron Electric Tankless Water Heater save energy?

The Stiebel Eltron Electric Tankless Water Heater uses intelligent self-modulating technology to ensure ongoing energy savings.

What is the flow rate of the Rinnai Indoor Gas Tankless Hot Water Heater?

The Rinnai Indoor Gas Tankless Hot Water Heater has a high flow rate of 7.5 gallons per minute (GPM).

Can the Rinnai Outdoor Gas Tankless Hot Water Heater be used for outdoor installations?

Yes, the Rinnai Outdoor Gas Tankless Hot Water Heater is designed for outdoor installations.

How much can homeowners save on water-heating costs with the EcoSmart ECO 18 Electric Tankless Water Heater?

Homeowners can save up to 60% on water-heating costs with the EcoSmart ECO 18 Electric Tankless Water Heater.

What is the flow rate of the EcoSmart ECO 11 Electric Tankless Water Heater?

The EcoSmart ECO 11 Electric Tankless Water Heater has a low flow rate of 1.3-3.1 gallons per minute (GPM).

Does the Rheem Tankless Electric Water Heater require venting?

No, the Rheem Tankless Electric Water Heater does not require any venting.

What are the key features of the Stiebel Eltron Electric Tankless Water Heater?

The Stiebel Eltron Electric Tankless Water Heater has a high flow rate, compact size, self-modulating technology, and a 7-year warranty.

How does the Rinnai Indoor Tankless Hot Water Heater ensure consistent water temperature?

The Rinnai Indoor Tankless Hot Water Heater has a temperature lock feature that prevents accidental changes to water temperature.

Is the Rinnai Outdoor Tankless Hot Water Heater environmentally friendly?

Yes, the Rinnai Outdoor Tankless Hot Water Heater is approved by the South Coast Air Quality Management District for its low emissions.

What is the lifetime warranty of the EcoSmart ECO 18 Electric Tankless Water Heater?

The EcoSmart ECO 18 Electric Tankless Water Heater comes with a lifetime warranty for residential use.

How much space does the EcoSmart ECO 11 Electric Tankless Water Heater save compared to traditional tank heaters?

The EcoSmart ECO 11 Electric Tankless Water Heater is 90% smaller than traditional tank heaters, saving valuable space.

What is the capacity of the Rheem Tankless Electric Water Heater?

The Rheem Tankless Electric Water Heater has a limited capacity of 8 kilowatts.

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