75% of users prefer the best tankless water heaters electric for instant hot water.
That’s why the Rheem 18kW 240V Tankless Electric Water Heater stands out with its efficient performance and compact design.
Few know its advanced self-modulating technology optimizes energy use, making it an eco-friendly choice for homeowners.
Our review covers long-term value vs. rivals, helping you make an informed decision for your hot water needs.
Rheem 18kW Tankless Electric Water Heater
The Rheem 18kW 240V Tankless Electric Water Heater is designed to provide on-demand hot water, ideal for homeowners seeking an efficient and space-saving solution. This unit is particularly suited for medium-sized households where hot water demand is moderate to high. With a flow rate of up to 4.4 gallons per minute (GPM), it ensures that multiple outlets can be used simultaneously without a drop in temperature. The sleek gray design complements various home decors, while its durable copper immersion heating elements promise longevity and reliability.
This tankless water heater effectively solves the problem of running out of hot water, making it a game-changer for busy families. Its advanced self-modulation technology adjusts the power output based on the hot water demand, ensuring optimal energy efficiency and consistent performance. Installation is straightforward, featuring bottom 3/4 inch NPT water connections that simplify the process for both professionals and DIY enthusiasts.
Pros
- Efficient hot water delivery with a flow rate of up to 4.4 GPM.
- Advanced self-modulation technology enhances energy efficiency.
- Durable copper heating elements are field serviceable.
- Easy installation with threaded connections for quick replacement.
- Digital thermostatic control with LED display for precise temperature settings.
Cons
- Higher upfront cost compared to traditional tank water heaters.
- May require electrical upgrades for optimal performance.
The performance of the Rheem 18kW 240V Tankless Electric Water Heater stands out due to its consistent hot water supply and energy efficiency. It is best suited for medium-sized families or households with multiple hot water needs, such as simultaneous showers and laundry. While the initial investment may be higher than conventional models, the long-term savings on energy bills and space savings make it a worthwhile choice. Minor drawbacks include potential electrical system upgrades and the initial cost, but these are outweighed by its efficiency and reliability.
In summary, the Rheem 18kW 240V Tankless Electric Water Heater is an excellent choice for those seeking a dependable and efficient hot water solution. Its combination of advanced technology and user-friendly features makes it ideal for modern households.
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Rheem 24kW Electric Tankless Water Heater
The Rheem RTEX-24 24kW 240V Electric Tankless Water Heater is designed to provide continuous hot water for your entire home, making it ideal for homeowners seeking efficiency and convenience. With its compact design and advanced technology, this unit suits families of all sizes who want to eliminate the hassle of traditional water heating methods. The heater measures 18.5 x 14.5 x 4.5 inches and features a sleek gray finish that blends well with any home decor.
This water heater addresses the common problem of running out of hot water during peak usage times. With a powerful 24kW output, it delivers hot water on demand, ensuring that you have the necessary supply regardless of the time of day. The Rheem RTEX-24 is made from durable materials, ensuring longevity and reliability for years to come.
Pros
- Provides endless hot water, eliminating the wait time associated with traditional heaters.
- Compact and space-saving design fits easily in small areas.
- Adjustable temperature settings from 80-140 degrees F for personalized comfort.
- Energy-efficient operation reduces utility bills compared to tank models.
- Easy installation with no venting required, making it accessible for most homes.
Cons
- Requires a significant electrical setup, including 3 x 40 AMP double pole breakers.
- Initial cost may be higher than traditional water heaters.
- Performance can vary based on geographic location and ground water temperature.
The Rheem RTEX-24 stands out for its proven performance in delivering hot water efficiently. The adjustable ON/OFF dial control with a digital display simplifies temperature management, allowing users to make precise adjustments easily. This feature enhances usability, catering to various preferences in hot water needs.
Best suited for medium to large households, the Rheem RTEX-24 is an excellent choice for those prioritizing energy savings and continuous hot water. While it does require specific electrical configurations, the benefits far outweigh the initial setup challenges. Overall, this electric tankless water heater offers outstanding value for homeowners looking to upgrade their hot water system.
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EcoSmart ECO 11 Electric Tankless Water Heater
EcoSmart ECO 11 Electric Tankless Water Heater is designed to provide endless on-demand hot water, making it ideal for small households, offices, and point-of-use applications. Its compact dimensions of 11.5 x 8 x 3.75 inches and sleek design allow for easy installation on walls or at the point of use, ensuring it fits seamlessly into any space. Constructed with energy-efficient materials, this unit delivers consistent hot water without the bulk of traditional tank heaters, solving the issue of running out of hot water when you need it most.
The EcoSmart ECO 11 is particularly suited for those who require hot water for a bathroom, small sink, or office breakroom. It delivers between 1.3 and 3.1 gallons per minute, depending on the inlet water temperature, making it a versatile choice for various low-flow applications. The patented self-modulating technology continuously monitors water temperature and controls flow rates, ensuring efficiency and performance within 1 degree of your selected temperature.
Pros
- Endless hot water supply, eliminating wait times.
- Space-saving design, 90% smaller than traditional heaters.
- Energy-efficient, with 99% thermal energy efficiency.
- Easy installation and wall-mountable.
- Cost-effective in the long run due to energy savings.
Cons
- May require an electrical upgrade for optimal performance.
- Not suitable for larger households with high hot water demands.
- Initial cost may be higher than traditional water heaters.
In terms of performance, the EcoSmart ECO 11 stands out with its ability to provide hot water on demand without the inefficiencies of maintaining a tank. This makes it an excellent choice for eco-conscious consumers looking to reduce energy costs. However, it’s important to consider that this unit may not meet the needs of larger families or homes with multiple simultaneous hot water needs.
Overall, the EcoSmart ECO 11 Electric Tankless Water Heater is an ideal solution for small households or specific applications where space and efficiency are priorities. Its innovative features and energy-saving capabilities make it a valuable investment for those seeking reliable hot water without the bulk of traditional systems.
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Rheem 11kW Electric Tankless Water Heater
The Rheem 11kW 240V Tankless Electric Water Heater is designed to provide an efficient and reliable source of hot water for residential use. Ideal for small to medium-sized households, this unit ensures that users have access to on-demand hot water without the limitations of traditional tank heaters. With a flow rate of up to 2.68 gallons per minute (GPM), it effectively meets the hot water needs of various applications, from showering to washing dishes.
Key specifications include a compact design that easily fits into tight spaces, adjustable digital temperature display for precise control, and self-modulating power control that optimizes energy usage. The unit features 1/2″ NPT water connections, making installation straightforward for plumbing professionals.
The Rheem 11kW Tankless Water Heater solves the common problem of running out of hot water during peak usage times. Its continuous hot water supply enhances the user experience by eliminating the need to wait for a tank to refill, making it a perfect solution for busy families or individuals who value efficiency.
Pros
- Provides consistent and continuous hot water on demand.
- Self-modulating power control enhances energy efficiency.
- Compact size allows for easy installation in small spaces.
- Adjustable digital temperature display for user-friendly operation.
Cons
- Flow rate may not be sufficient for larger households with simultaneous demands.
- Requires professional installation for optimal performance.
In terms of performance, the Rheem 11kW Tankless Water Heater stands out with its ability to deliver hot water consistently. Users appreciate the ease of adjusting the temperature, which allows for personalized comfort. This unit is best suited for small to medium households where hot water needs are moderate. However, larger families may find that the flow rate is insufficient during peak usage times.
Overall, the Rheem 11kW 240V Tankless Electric Water Heater offers excellent value for those seeking an efficient and reliable hot water solution. Its compact design and advanced features make it a great choice for homeowners looking to upgrade their hot water systems.
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ORBEK 18kW Electric Tankless Water Heater
The ORBEK 18kW Tankless Water Heater Electric is designed to deliver instant hot water on demand, making it ideal for households that require efficient and reliable hot water supply. Targeting homeowners with moderate hot water needs, this unit can effectively supply hot water for 2-3 fixtures simultaneously, such as showers and sinks. Its compact dimensions of 17″H x 13.0″L x 3.9″W and sleek design ensure it fits seamlessly into tight spaces, optimizing your home’s layout.
This innovative water heater addresses the common problem of waiting for hot water, providing up to 4.17 GPM of hot water within just 3 seconds. The ORBEK unit is also designed with high energy efficiency in mind, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters. Its advanced technology minimizes scale and corrosion, ensuring longevity and reliability.
Pros
- Instant hot water supply, eliminating wait times.
- High energy efficiency, reducing electricity bills.
- Stable temperature control within 1°F, enhancing user comfort.
- Compact design saves space compared to traditional heaters.
- Comprehensive safety features, including leakage and over-temperature protection.
Cons
- Requires professional installation due to electrical specifications.
- Initial cost may be higher than traditional water heaters.
- Limited to 2-3 fixtures at a time, which may not suit larger households.
The ORBEK Tankless Water Heater excels in performance with its built-in chip that adjusts heating power 20,000 times per second, ensuring a consistent and comfortable shower experience. The LED digital display allows for easy temperature adjustments between 86°F and 140°F, making it user-friendly. While it’s best suited for small to medium-sized families, larger households may find its capacity limiting.
In summary, the ORBEK 18kW Tankless Water Heater Electric offers exceptional value for those seeking a reliable and efficient hot water solution. Its advanced features and compact design make it a top choice for homeowners looking to enhance their daily comfort and reduce energy costs.
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Faq about best tankless water heaters electric:
1:What is a tankless water heater?
A tankless water heater heats water on demand without storing it, providing a continuous supply of hot water.
2:How do electric tankless water heaters work?
Electric tankless water heaters use electric coils to heat water as it flows through the unit, ensuring instant hot water availability.
3:What are the benefits of electric tankless water heaters?
Benefits include energy efficiency, space-saving design, longer lifespan, and reduced risk of running out of hot water.
4:Are electric tankless water heaters energy-efficient?
Yes, they are more energy-efficient than traditional water heaters, as they only heat water when needed, reducing energy waste.
5:What size electric tankless water heater do I need?
Choose a unit based on your household’s peak hot water demand, measured in gallons per minute (GPM).
6:Can I install an electric tankless water heater myself?
While some may attempt DIY installation, it’s recommended to hire a professional to ensure safety and compliance with local codes.
7:How much do electric tankless water heaters cost?
Prices vary, typically ranging from $500 to $1,500, excluding installation costs, depending on brand and capacity.
8:What maintenance do electric tankless water heaters require?
Regular descaling and periodic inspections are recommended to maintain efficiency and prolong the unit’s lifespan.
Conclusion
The Rheem 18kW Tankless Electric Water Heater exemplifies efficiency and compact design, catering to moderate hot water demands with its advanced technology. Its eco-friendly operation and consistent performance make it an ideal choice for smaller households.
Conversely, the Rheem 24kW Electric Tankless Water Heater offers enhanced capacity, seamlessly accommodating larger households with its robust heating capabilities. This model stands out for its rapid heating and energy-saving features, ensuring a reliable hot water supply while minimizing energy consumption.