best tankless water heaters electric that will change your hot water game
Struggling with inconsistent hot water? The right tankless water heater can provide instant comfort and efficiency.
Tankless water heaters serve the core purpose of delivering hot water on demand, eliminating the need for bulky tanks. Top products like Rheem 18kW 240V Tankless Electric Water Heater and EcoSmart ECO 11 offer efficient solutions that save space and energy. Enjoy endless hot water without the hefty energy bills.
Standout features include Rheem’s advanced technology for quick heating and EcoSmart’s self-modulating system that adjusts energy usage based on demand. These unique selling points simplify your hot water needs while maximizing efficiency.
In our full review, we break down performance, durability, and more to help you choose the perfect model.
Rheem 18kW Tankless Electric Water Heater
The adjustable valve sets the Rheem 18kW 240V Tankless Electric Water Heater apart from its competitors. Designed for efficiency, this unit features durable copper immersion heating elements and a sleek gray exterior. It measures 18.5 x 14.5 x 4.5 inches, making it compact enough for various installation spaces. The water heater operates at a flow rate of up to 4.4 GPM, ensuring a steady supply of hot water for multiple outlets simultaneously.
Key Advantages
- The **316-grade stainless steel** construction resists corrosion, enhancing longevity.
- Advanced self-modulation technology allows the unit to adjust power based on hot water demand, optimizing energy consumption.
- External digital thermostatic control with an LED display provides +/- 1-degree accuracy for precise temperature management.
- Simple installation with bottom 3/4 inch NPT water connections and threaded elements for easy replacement.
Limitations
- **Not compatible** with traditional tank-style water heaters, which may require additional modifications during installation.
This product is best for outdoor enthusiasts needing a reliable and efficient hot water solution for cabins, RVs, or remote locations. Its advanced features and durable design make it an ideal choice for users seeking consistent performance in demanding environments.
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ORBEK 14kW Electric Tankless Water Heater
The adjustable valve sets the ORBEK 14kW Tankless Water Heater apart, delivering precise temperature control and efficient hot water supply. Constructed from 316-grade stainless steel, this unit is designed to resist corrosion, ensuring longevity and reliability. With compact dimensions of 14.2″H x 9.5″L x 3.1″W, it fits seamlessly into tight spaces, making it ideal for various installations.
Key Advantages
- Its ability to provide up to 3.38 GPM of on-demand hot water allows for simultaneous use at 2-3 points, perfect for busy households.
- High energy efficiency is achieved through water-electricity separation, potentially reducing electricity costs by up to 60% compared to traditional heaters.
- The built-in chip offers stable temperature control, adjusting heating power 20,000 times per second to maintain a consistent temperature within 1°F.
- Equipped with an LED digital display, users can easily monitor and adjust temperatures between 86°F and 140°F.
Limitations
- Not compatible with 120V systems, requiring specific electrical setups (240V/60AMP) for optimal performance.
This product is best for outdoor enthusiasts needing a reliable and efficient hot water solution for camping, RVs, or remote cabins, ensuring endless hot water supply without the bulk of traditional tanks.
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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 customize their water temperature precisely, ensuring optimal comfort and efficiency. Constructed from high-quality materials, including a durable plastic casing, this unit measures 11.5 x 8 x 3.75 inches, making it 90% smaller than traditional tank heaters and ideal for space-saving installations.
Key Advantages
- The use of 316-grade stainless steel in internal components resists corrosion, enhancing longevity and reliability.
- With a maximum output of 3.1 gallons per minute, it efficiently supplies hot water for low-flow applications like bathrooms and small sinks.
- Featuring 99% thermal energy efficiency, it only heats water when needed, significantly reducing energy consumption compared to conventional tank heaters.
Limitations
- Not compatible with high-demand applications, such as multiple simultaneous showers or large bathtubs.
- Requires a dedicated 240V electrical circuit, which may necessitate professional installation.
Best for outdoor enthusiasts needing a compact, energy-efficient solution for hot water at remote locations or small spaces, the EcoSmart ECO 11 is a reliable choice that delivers consistent performance without the bulk of traditional heaters.
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Rheem RTEX-24 Electric Tankless Water Heater
The adjustable valve sets the Rheem RTEX-24 Electric Tankless Water Heater apart from its competitors. This unit features a compact design with dimensions of 18.5 x 14.5 x 4.5 inches and is constructed from durable materials, including a high-quality 316-grade stainless steel heat exchanger that resists corrosion, ensuring longevity and reliability.
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, catering to individual preferences.
Limitations
- Not compatible with traditional tank water heaters, which may require additional modifications for installation.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Rheem RTEX-24 is ideal for homes where space is at a premium and continuous hot water is essential. Its tankless design not only conserves energy but also eliminates the need for venting, making it a versatile choice for various applications. Overall, the Rheem RTEX-24 stands out for its innovative features and robust performance, making it a top contender in the electric tankless water heater market.
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Stiebel Eltron Tempra 24 Plus Heater
The adjustable valve sets the Stiebel Eltron Tankless Water Heater – Tempra 24 Plus apart from its competitors. This model boasts a robust 24kW power output and operates at 240V, requiring a minimum recommended electric service of 150 A. Constructed from high-quality materials, including a solid copper heating system, it ensures efficient performance while maintaining durability.
Key Advantages
- The 316-grade stainless steel construction resists corrosion, ensuring longevity even in humid environments.
- Advanced Flow Control technology automatically maintains water temperature, providing a consistent hot water supply without interruption.
- Its compact design saves space, making it ideal for homes with limited installation areas.
- The energy-efficient auto-modulation feature optimizes energy use, and the savings monitor tracks energy cost reductions.
Limitations
- Not compatible with gas lines, which may limit installation options for some users.
- Requires a significant electrical service, potentially necessitating upgrades for older homes.
Best for outdoor enthusiasts needing an efficient, reliable hot water solution, the Tempra 24 Plus is perfect for households that demand continuous hot water without the hassle of traditional tank systems. Its eco-friendly features and advanced technology make it a premier choice for those seeking modern, sustainable solutions in their homes.
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Faq about best tankless water heaters electric:
1:What are electric tankless water heaters?
Electric tankless water heaters heat water on demand without storing it, providing a continuous supply of hot water.
2:How do electric tankless water heaters work?
They use electric coils to heat water as it flows through the unit, ensuring instant hot water without waiting.
3:What are the benefits of electric tankless water heaters?
Benefits include energy efficiency, space-saving design, and a longer lifespan compared to traditional water heaters.
4:Are electric tankless water heaters energy efficient?
Yes, they are highly energy efficient, as they only use energy when hot water is needed, reducing overall consumption.
5:How much do electric tankless water heaters cost?
Prices vary, typically ranging from $500 to $1,500, depending on the model and capacity.
6:Can electric tankless water heaters provide enough hot water for a large household?
Yes, but it’s essential to choose a model with sufficient flow rate to meet your household’s hot water demands.
7:What maintenance do electric tankless water heaters require?
Regular descaling and checking the filters are recommended to maintain optimal performance and longevity.
Conclusion
Rheem’s 18kW Tankless Electric Water Heater exemplifies efficiency and reliability, delivering a continuous supply of hot water while optimizing energy consumption. Its advanced technology ensures exceptional performance, making it a premier choice for modern households.
Conversely, the ORBEK 14kW Electric Tankless Water Heater offers an impressive balance of power and compact design, catering to various domestic needs without compromising on space. Both products stand out in the market, underscoring the advantages of tankless systems in enhancing comfort and sustainability.