best tankless electric water heaters that will surprise you

Are you tired of running out of hot water during showers? Switching to an electric tankless water heater can solve this issue.

Electric tankless water heaters provide instant hot water on demand, with models like Rheem 18kW and EcoSmart ECO 11 leading the market. These products are highly efficient, saving energy and reducing utility bills.

Standout features include compact designs that save space and advanced self-modulating technology, which optimizes energy use. This makes them not only eco-friendly but also cost-effective in the long run.

In our full review, we break down performance, durability, and more to help you choose the right model.

Rheem 18kW Tankless Electric Water Heater

The adjustable valve sets the Rheem 18kW 240V Tankless Electric Water Heater apart from its competitors. This feature allows for precise control over water temperature, ensuring optimal performance tailored to user needs. Constructed from durable materials, this unit features a robust design with dimensions of 18.5 x 14.5 x 4.5 inches, making it compact enough for various installations. The heater is built with copper immersion two heating elements that provide efficient heating and can be serviced in the field, enhancing its longevity.

Key Advantages

• 316-grade stainless steel components resist corrosion, ensuring durability and reliability in various environments.
• Features a flow rate of up to 4.4 GPM, making it suitable for multiple applications in residential settings.
• External digital thermostatic control with LED display offers +/- 1-degree accuracy, allowing for precise temperature management.
• Simple installation with bottom 3/4 inch NPT water connections facilitates quick setup.

Limitations

• Not compatible with traditional tank water heater systems, requiring a full transition to tankless technology.
• May require additional electrical upgrades for optimal performance in some homes.

This water heater is best for outdoor enthusiasts needing a reliable, efficient hot water solution that can adapt to varying demand while maintaining energy efficiency.

To buy this product, click here.

EcoSmart ECO 11 Electric Tankless Water Heater

The adjustable valve sets the EcoSmart ECO 11 Electric Tankless Water Heater apart from its competitors. This innovative feature allows users to precisely control water flow and temperature, ensuring optimal performance tailored to specific needs. Constructed from durable materials, the unit features a compact design with dimensions of 11.5 x 8 x 3.75 inches, making it 90% smaller than traditional tank heaters, which facilitates easy installation in various settings.

Key Advantages

• The 316-grade stainless steel components resist corrosion, enhancing longevity and reliability.
• With a thermal efficiency rating of 99%, it only heats water when needed, significantly reducing energy consumption.
• Patented self-modulating technology continuously monitors water temperature and flow rates, maintaining a consistent output within 1 degree of the selected temperature.

Limitations

• Not compatible with certain plumbing systems, particularly those requiring high flow rates beyond the unit’s capacity.

In summary, the EcoSmart ECO 11 is best for outdoor enthusiasts needing an efficient, space-saving solution for hot water demands in small applications like bathrooms, office breakrooms, or low-flow sinks. Its advanced features and compact design make it an excellent choice for those seeking reliable, on-demand hot water without the bulk of traditional heaters.

To buy this product, click here.

Rheem 24kW Electric Tankless Water Heater

The adjustable valve sets the Rheem RTEX-24 24kW 240V Electric Tankless Water Heater apart from its competitors. This unit features a compact design, measuring 18.5 x 14.5 x 4.5 inches, and is constructed from high-quality 316-grade stainless steel, ensuring durability and resistance to corrosion. The water heater requires 3 x 40 AMP double pole breakers and is best suited for homes with a 200 AMP service.

Key Advantages

• The ON/OFF dial control with an adjustable digital temperature display allows for precise temperature adjustments in 1-degree increments, ranging from 80 to 140 degrees Fahrenheit. This feature provides users with optimal control over their hot water needs.

Limitations

• Not compatible with homes that do not meet the electrical requirements, particularly those lacking sufficient amperage or space in the breaker panel.

In summary, the Rheem RTEX-24 is best for outdoor enthusiasts needing a reliable and efficient solution for continuous hot water supply. Its space-saving design and energy efficiency make it an ideal choice for modern households looking to optimize their hot water systems without the bulk of traditional tank heaters.

To buy this product, click here.

ORBEK 14kW Electric Tankless Water Heater

The adjustable valve sets the Orbek 14kW Tankless Water Heater apart from its competitors. This electric unit operates at 240 volts and is designed for on-demand hot water supply, delivering up to 3.38 GPM, making it suitable for 2-3 points of use simultaneously. The heater’s compact dimensions of 14.2″H x 9.5″L x 3.1″W allow for easy installation in tight spaces.

Key Advantages

• The use of 316-grade stainless steel resists corrosion, ensuring durability and longevity.

• High energy efficiency is achieved through water-electricity separation, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters.

• Stable temperature control is maintained by a built-in chip that adjusts heating power 20,000 times per second, keeping water temperature stable within 1°F.

• The LED digital display provides real-time temperature adjustments between 86°F and 140°F, enhancing user convenience.

Limitations

• Not compatible with traditional tank water heater connections, requiring specific installation setups.

This product is best for outdoor enthusiasts needing a reliable and efficient hot water solution for camping or outdoor showers. Its advanced safety features, including leakage protection and over-temperature protection, make it a secure choice for various applications.

To buy this product, click here.

WINTEMP 36kW Tankless Electric Water Heater

The adjustable valve sets the WINTEMP 36kW Tankless Electric Water Heater apart from its competitors. This unit is designed to deliver instant on-demand hot water with a maximum output of 8.7 gallons per minute, ensuring a steady supply for multiple residential showers. Constructed from 316-grade stainless steel, it resists corrosion, enhancing durability and longevity. The compact dimensions of 13.7” (W) x 21.1” (H) x 5.3” (D) make it an excellent choice for installations in tight spaces.

Key Advantages

• The self-regulating technology optimizes energy consumption based on real-time flow and temperature, achieving up to 99% energy savings. This feature is particularly beneficial for households with 3-5 usage points.

Limitations

• Not compatible with traditional tank water heaters, requiring specific electrical setups including 4 x 40 Amp double-pole breakers and a recommended 300A household power supply.

Best for outdoor enthusiasts needing a reliable and efficient hot water solution, this tankless heater is equipped with WiFi control for remote temperature adjustments and multiple safety features such as leakage and overheat protection. With a 2-year warranty and professional technical support, the WINTEMP 36kW offers peace of mind for users seeking an endless supply of hot water.

To buy this product, click here.

Faq about best tankless electric water heaters:

1:What is a tankless electric water heater?

A tankless electric water heater heats water on demand, providing hot water without the need for a storage tank.

2:What are the benefits of using a tankless electric water heater?

Benefits include energy efficiency, endless hot water supply, space-saving design, and longer lifespan compared to traditional heaters.

3:How do I choose the best tankless electric water heater?

Consider factors like flow rate, energy efficiency ratings, installation requirements, and your household’s hot water needs.

4:Are tankless electric water heaters energy efficient?

Yes, they are more energy-efficient than traditional water heaters, as they only heat water when needed, reducing standby energy loss.

5:How much does it cost to install a tankless electric water heater?

Installation costs vary, typically ranging from $1,000 to $3,000, depending on the unit and installation complexity.

6:Do tankless electric water heaters require maintenance?

Yes, regular maintenance, such as descaling and checking filters, is recommended to ensure optimal performance and longevity.

7:Can a tankless electric water heater provide enough hot water for my home?

Yes, as long as you choose a model with an adequate flow rate for your household’s simultaneous hot water needs.

Conclusion

Rheem 18kW Tankless Electric Water Heater exemplifies efficiency and reliability, delivering an impressive flow rate suitable for various household needs. Its advanced technology ensures consistent hot water supply while optimizing energy consumption, making it a commendable choice for eco-conscious consumers.

Conversely, the EcoSmart ECO 11 Electric Tankless Water Heater stands out for its compact design and innovative self-modulating capabilities, catering to smaller spaces without compromising performance. This model not only enhances convenience but also contributes to significant energy savings, solidifying its position as a top contender in the market.