Are you tired of running out of hot water during showers? An electric tankless water heater can provide endless hot water on demand.
Electric tankless water heaters, like the Rheem 18kW 240V and EcoSmart ECO 11, deliver efficient heating while saving space. These models simplify installation and reduce energy costs, making them perfect for modern homes.
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
The Rheem 18kW 240V Tankless Electric Water Heater is designed to provide an endless supply of hot water, ideal for homeowners seeking energy-efficient solutions. Its sleek gray design complements most home decors, while the compact size ensures it fits in tight spaces. With a flow rate of up to 4.4 GPM, this unit effectively meets the hot water demands of small to medium-sized households, making it a perfect choice for families or individuals who prioritize comfort and efficiency.
This tankless water heater addresses the common problem of running out of hot water during peak usage times, such as showers or dishwashing. Its advanced self-modulation technology adjusts power to match hot water demand, ensuring that you receive consistent temperature control. The external digital thermostatic control with an LED display allows for precise temperature settings with +/- 1-degree accuracy, enhancing user experience.
Pros
- Excellent energy efficiency reduces utility bills.
- Durable copper immersion heating elements extend the lifespan.
- Simple installation with bottom 3/4 inch NPT water connections.
- Field serviceable components make maintenance easy.
- Digital temperature display enhances usability.
Cons
- Initial cost may be higher than traditional water heaters.
- Requires a minimum electrical capacity for optimal performance.
Performance-wise, the Rheem 18kW 240V Tankless Electric Water Heater stands out due to its ability to provide hot water on demand, making it suitable for households with multiple bathrooms or heavy water usage. Unlike cheaper alternatives, this unit offers a reliable solution without the need for bulky storage tanks. However, potential users should be aware of the electrical requirements, which may necessitate an upgrade for some homes.
Overall, the Rheem 18kW 240V Tankless Electric Water Heater delivers exceptional value for those seeking a reliable, energy-efficient hot water solution. It is best suited for families or individuals who require consistent hot water without the hassle of traditional systems. With its advanced features and user-friendly design, this unit is a worthy investment for any modern home.
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Rheem RTEX-24 Electric Tankless Water Heater
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater is designed to provide continuous hot water on demand, ideal for homeowners looking to upgrade their hot water system. Its compact size (dimensions: 18.5 x 14.5 x 3.625 inches) and sleek gray color ensure it fits seamlessly into most utility spaces. Made from durable materials, this unit is built to last while offering efficient performance.
This tankless water heater solves the common problem of running out of hot water during peak usage times, making it perfect for families or those with high hot water demands. With a power requirement of 3 x 40 AMP double pole breakers, it is essential to ensure that your home’s electrical system can accommodate this unit.
Pros
- Continuous hot water supply, eliminating the risk of running out.
- Space-saving design compared to traditional tank water heaters.
- Energy-efficient, leading to reduced utility bills.
- Easily adjustable temperature settings from 80 to 140 degrees F.
- No venting required, simplifying installation.
Cons
- Requires significant electrical capacity (200 AMP service recommended).
- Initial installation cost may be higher than traditional water heaters.
- Performance can vary based on groundwater temperature and location.
The Rheem RTEX-24 excels in performance, offering a reliable hot water solution for an entire household. Its standout feature is the adjustable digital temperature display, allowing users to set their desired temperature in precise increments. This flexibility ensures optimal comfort for various household needs, from showers to washing dishes.
This unit is best suited for medium to large households that require a steady supply of hot water without the clutter of a traditional tank. While it boasts numerous advantages, potential buyers should consider their home’s electrical capacity and installation costs.
In summary, the Rheem RTEX-24 is an excellent choice for those seeking a best electric tankless water heater solution that offers efficiency, convenience, and reliability. Its ideal users are families or individuals who prioritize continuous hot water and seek to optimize their energy usage.
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EcoSmart ECO 11 Electric Tankless Heater
EcoSmart ECO 11 Electric Tankless Water Heater is designed to provide endless on-demand hot water, making it ideal for small households, apartments, or offices. Its compact size of 11.5 x 8 x 3.75 inches and energy-efficient technology cater to users who prioritize space and efficiency. The heater’s patented self-modulating technology ensures consistent hot water delivery, maintaining the selected temperature within one degree.
This product solves the common problem of running out of hot water, especially during peak usage times. Unlike traditional tank heaters, the EcoSmart ECO 11 heats water only when needed, which not only conserves energy but also reduces utility bills. Its 13-kilowatt capacity is suitable for low-flow applications such as bathrooms, small sinks, or office breakrooms, providing between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature.
Pros
- Endless hot water: No more waiting for the tank to refill, ensuring convenience for multiple users.
- Space-saving design: Significantly smaller than traditional heaters, allowing for flexible installation options.
- Energy efficient: With 99% thermal energy efficiency, it heats water only when required, saving on energy costs.
- Easy installation: Can be mounted on a wall or installed at the point of use, simplifying setup.
- Consistent performance: Maintains a precise temperature, enhancing user satisfaction during showers or other hot water needs.
Cons
- Limited flow rate: Best suited for low-flow applications; may not meet high-demand needs simultaneously.
- Requires proper electrical setup: Needs a dedicated circuit, which may involve additional installation costs.
- Higher initial cost: While energy savings are significant, the upfront investment is more than traditional water heaters.
The EcoSmart ECO 11 stands out for its energy efficiency and compact design, making it a perfect choice for those in need of reliable hot water without the bulk of traditional heaters. It is best suited for small households or office settings where hot water demand is moderate. While it has some limitations in flow rate and initial cost, its long-term savings and performance make it a valuable investment.
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ORBEK 18kW Electric Tankless Water Heater
The ORBEK 18kW Tankless Water Heater is designed to provide an instant supply of hot water, making it ideal for households needing efficient hot water solutions. This product is particularly well-suited for families or individuals with multiple fixtures, as it can supply hot water to 2-3 points of use simultaneously. With a compact size of 17″H x 13.0″L x 3.9″W, it fits seamlessly into most indoor spaces, ensuring that you never run out of hot water when you need it most.
This electric tankless water heater boasts a powerful output of up to 4.17 GPM, delivering endless hot water in just 3 seconds. Its innovative design utilizes water-electricity separation to minimize scale and corrosion, enhancing its longevity and efficiency. Users can expect a significant reduction in electricity costs—up to 60% compared to traditional tank-style heaters—making it a cost-effective choice for modern homes.
Pros
- Instant Hot Water Supply: Provides endless hot water, ensuring comfort for multiple fixtures.
- High Energy Efficiency: Reduces electricity costs significantly compared to tank heaters.
- Comprehensive Security Protection: Equipped with advanced safety features like leakage and over-temperature protection.
- Stable Temperature Control: Maintains water temperature within 1°F for a consistent shower experience.
- Easy Installation: Compact design allows for easy fitting in tight spaces.
Cons
- Requires Professional Installation: Needs specific electrical requirements, including 2 x 240V/40A breakers.
- Initial Cost: Higher upfront cost compared to traditional water heaters.
In terms of performance, the ORBEK tankless water heater stands out with its LED digital display, allowing users to easily adjust temperatures between 86°F and 140°F. The built-in chip enhances usability by adjusting heating power 20,000 times per second, ensuring a stable temperature. While the installation may require professional help due to specific electrical needs, the long-term benefits outweigh the initial inconvenience.
This product is best suited for families or individuals who prioritize energy efficiency and need a reliable hot water supply. Despite its higher price point, the ORBEK 18kW Tankless Water Heater offers exceptional value for those seeking a modern, efficient solution for their hot water needs.
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WINTEMP 27kW Electric Tankless Water Heater
The Electric Tankless Water Heater WINTEMP 27kW 240V is designed to provide an endless supply of hot water, making it ideal for homeowners seeking efficient and reliable hot water solutions. This unit is particularly suited for medium to large households with 2-4 usage points. With dimensions of 11.1” (W) x 19.1” (H) x 4” (D), it boasts a compact wall-mounted design that saves valuable space while delivering a maximum output of 6.5 gallons per minute.
One of the standout features of the WINTEMP 27kW is its ability to maintain a stable water temperature. It automatically adjusts energy consumption based on the incoming water temperature and flow rate, ensuring optimal power usage without fluctuations during use. This eliminates the common issues associated with traditional tank heaters, such as waiting for water to heat up or running out of hot water during a shower.
The product not only enhances the user experience but also promotes energy savings. The self-regulating technology allows the heater to adjust power input based on real-time conditions, achieving up to 99% energy efficiency and potentially saving up to 60% on electricity costs compared to conventional water heaters.
Pros
- Endless hot water supply eliminates waiting time.
- Compact design saves up to 90% more space than traditional models.
- Energy-efficient operation reduces electricity bills significantly.
- Remote WiFi control for convenient temperature adjustments.
- Multiple safety features ensure reliable and safe usage.
Cons
- Higher upfront cost compared to traditional tank heaters.
- Requires specific electrical setup (3 x 40 Amp breakers).
The WINTEMP Electric Tankless Water Heater excels in performance and usability, making it a perfect fit for families who require a consistent and efficient hot water supply. Minor drawbacks include the need for a suitable electrical installation and the initial investment, but the long-term savings and convenience outweigh these considerations. Overall, this product is an excellent choice for those looking to upgrade their hot water system with a reliable, energy-efficient solution.
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Faq about best electric tankless water heater:
1:What is an electric tankless water heater?
An electric tankless water heater heats water on demand, providing a continuous supply without the need for a storage tank.
2:How does an electric tankless water heater work?
It activates when a hot water tap is opened, using electric coils to heat water as it flows through the unit.
3:What are the benefits of using an electric tankless water heater?
Benefits include energy efficiency, space-saving design, and a continuous supply of hot water, reducing the risk of running out.
4:Are electric tankless water heaters energy-efficient?
Yes, they are typically more energy-efficient than traditional tank heaters, as they only heat water when needed.
5:What size electric tankless water heater do I need?
The size depends on your household’s hot water demand; calculate based on simultaneous usage of fixtures.
6:How long do electric tankless water heaters last?
They generally last 15 to 20 years with proper maintenance, which is longer than traditional water heaters.
7:Can I install an electric tankless water heater myself?
While some may attempt DIY installation, hiring a professional is recommended for safety and compliance with local codes.
Conclusion
The Rheem 18kW Tankless Electric Water Heater exemplifies efficiency and innovation, delivering consistent hot water on demand while minimizing energy consumption. Its compact design and advanced technology make it an ideal choice for modern households seeking reliability and performance.
Conversely, the Rheem RTEX-24 Electric Tankless Water Heater offers exceptional versatility, catering to diverse household needs with its robust output and user-friendly interface. Both models underscore the shift towards sustainable solutions, ensuring comfort and convenience without compromising energy efficiency.