best tankless electric water heater – Which One Will Change Your Life?
Are you tired of running out of hot water during showers? Tankless electric water heaters provide endless hot water on demand.
These innovative systems, like the Rheem 18kW 240V Tankless Electric Water Heater and EcoSmart ECO 11, efficiently heat water as needed. They save space and energy, making them perfect for small homes. With a compact design, they simplify installation and maintenance.
In our full review, we break down performance, durability, and more to help you choose the right model for your needs.


Rheem 18kW Tankless Electric Water Heater
Tired of running out of hot water during your showers? The Rheem 18kW 240V Tankless Electric Water Heater fixes it with its impressive flow rate of up to 4.4 GPM, ensuring you have a continuous supply of hot water whenever you need it.
Why It Works
- Advanced self-modulation adjusts power based on hot water demand, eliminating temperature fluctuations.
- Durable copper immersion heating elements ensure longevity and consistent performance, reducing the need for frequent replacements.
- External digital thermostatic control with LED display allows for precise temperature adjustments, ensuring comfort during use.
- Simple installation with bottom 3/4 inch NPT water connections makes it easy for homeowners to set up.
Trade-offs
- Premium price compared to traditional tank heaters, but the efficiency and endless hot water justify the investment.
- Requires a 240V electrical supply, which may necessitate electrical upgrades in some homes.
Overall, the Rheem 18kW Tankless Electric Water Heater is worth it for frequent users who value convenience and reliability in their hot water supply. Its innovative features address common issues associated with traditional water heaters, making it a smart choice for any household.
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EcoSmart ECO 11 Electric Tankless Water Heater
Tired of running out of hot water during your showers? The EcoSmart ECO 11 Electric Tankless Water Heater fixes this with its innovative on-demand heating feature. No more waiting for a tank to refill; this unit provides endless hot water whenever you need it.
Why It Works
- Consistent temperature control ensures you enjoy a comfortable shower without sudden temperature drops.
- Space-saving design allows installation in tight spaces, making it ideal for small apartments or homes.
- Energy efficiency means you only heat water when needed, reducing energy bills compared to traditional tank heaters.
Trade-offs
- Requires a higher amperage (54 A), which may necessitate electrical upgrades in older homes.
- Initial investment is higher than standard water heaters, but the long-term savings on energy bills can offset this cost.
In summary, the EcoSmart ECO 11 is a reliable solution for those seeking an efficient and space-saving hot water option. While it may not be the cheapest upfront, the benefits of endless hot water and energy savings make it worth the investment for frequent users.
To buy this product, click here.
Rheem RTEX-24 Electric Tankless Water Heater
Tired of running out of hot water during your showers? The Rheem RTEX-24 Electric Tankless Water Heater fixes it with its continuous hot water supply feature. This unit delivers on-demand hot water, ensuring that your family never has to endure a cold shower again.
Why It Works
- Proven performance provides hot water for the entire home, accommodating varying geographic water temperatures.
- Easily adjustable ON/OFF dial control allows you to set the temperature in 1-degree increments, giving you precise control over your hot water needs.
- Efficient design saves space and reduces energy costs, making it a cost-effective solution for homeowners.
Trade-offs
- Electrical requirements include needing 3 x 40 AMP double pole breakers, which may necessitate an upgrade to your home’s electrical system.
- Premium price compared to traditional water heaters, but the long-term savings and efficiency justify the investment.
Overall, the Rheem RTEX-24 is worth it for frequent users who prioritize consistent hot water availability and energy efficiency. If you’re ready to eliminate the hassle of running out of hot water, this tankless water heater is a solid choice.
To buy this product, click here.
ORBEK 14kW Electric Tankless Water Heater
Tired of running out of hot water during your showers? The ORBEK 14kW Tankless Water Heater solves this issue with its instant hot water supply feature. This innovative unit can provide up to 3.38 GPM of on-demand hot water, ensuring that multiple points of use can be serviced simultaneously without a hitch.
Why It Works
- Stable Temperature Control keeps the water temperature consistent within 1°F, providing a comfortable and enjoyable shower experience.
- High Energy Efficiency reduces electricity costs by up to 60% compared to traditional tank-style heaters, making it a smart choice for budget-conscious consumers.
- Comprehensive Security Protection includes features like leakage and over-temperature protection, ensuring peace of mind while using hot water.
Trade-offs
- Premium price compared to traditional heaters, but the longevity and efficiency can justify the investment.
Overall, the ORBEK 14kW Tankless Water Heater is worth it for frequent users who value convenience and energy savings. Its compact design allows for easy installation, making it an ideal choice for homes looking to optimize space without sacrificing performance.
To buy this product, click here.
WINTEMP 27kW Electric Tankless Water Heater
Tired of running out of hot water during your shower? The WINTEMP 27kW Electric Tankless Water Heater solves this issue with its impressive on-demand hot water supply. With a maximum output of 6.5 gallons per minute, you can enjoy continuous hot water without the wait for preheating.
Why It Works
- Stable water temperature ensures you won’t experience any temperature fluctuations during your shower, automatically adjusting energy consumption based on incoming water temperature and flow rate.
- Energy saving features can lead to up to 60% savings on electricity costs, as the system reduces power usage when the water flow decreases or when not in use.
- Space-saving design allows installation in tight areas, occupying 90% less space than traditional tank heaters, making it perfect for homes with limited space.
- WiFi control lets you adjust the temperature remotely, providing convenience and flexibility.
- Safety features like leakage and overheat protection ensure peace of mind while using hot water.
Trade-offs
- Premium price compared to traditional water heaters, but the long-term energy savings and endless hot water supply make it a worthwhile investment.
Overall, the WINTEMP 27kW Electric Tankless Water Heater is worth it for frequent users seeking efficiency, space savings, and consistent hot water. Enjoy reliable performance with modern convenience and safety features.
To buy this product, click here.
Faq about best tankless electric water heater:
1:What is a tankless electric water heater?
A tankless electric water heater heats water on demand, providing a continuous supply without storing hot water in a tank.
2:How does a tankless electric water heater work?
It uses electric coils to heat water as it flows through the unit, ensuring instant hot water delivery.
3:What are the benefits of using a tankless electric water heater?
Benefits include energy efficiency, space-saving design, longer lifespan, and continuous hot water supply.
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.
5:What size tankless electric water heater do I need?
The size depends on your household’s hot water demand; consider flow rate and number of fixtures in use.
6:How long do tankless electric water heaters last?
They typically last 15-20 years with proper maintenance, outlasting traditional tank heaters.
7:Can I install a tankless electric water heater myself?
While some may attempt DIY installation, professional installation is recommended for safety and efficiency.
8:What maintenance is required for tankless electric water heaters?
Regular descaling and checking for mineral buildup are essential to maintain performance and longevity.
Conclusion
The Rheem 18kW Tankless Electric Water Heater exemplifies efficiency and reliability, delivering a consistent supply of hot water tailored to modern demands. Its robust performance and compact design make it an ideal choice for households seeking optimal energy conservation.
Conversely, the EcoSmart ECO 11 Electric Tankless Water Heater stands out for its innovative technology and user-friendly features, ensuring an eco-conscious solution without compromising on performance. Both products reflect the pinnacle of advancements in water heating, catering to diverse consumer needs with remarkable efficacy.





