best ecosmart tankless water heaters that will surprise you
For homeowners seeking efficiency, the best ecosmart tankless water heaters provide endless hot water without high energy bills.
The EcoSmart ECO 11 Electric Tankless Water Heater offers a compact solution for small spaces, making it ideal for apartments or condos. With its patented self-modulating technology, it ensures optimal energy use.
From single-point applications to whole-house setups, these heaters adapt to your needs, providing hot water on demand without the bulk of traditional tanks.
We detail pros, cons, and hidden perks ahead.


EcoSmart ECO 11 Electric Tankless Water Heater
The adjustable valve sets the EcoSmart ECO 11 Electric Tankless Water Heater apart from conventional models. This innovative feature allows users to customize water flow and temperature with precision, ensuring the perfect hot water experience. Made from durable materials, it features a compact design with dimensions of 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 components resists corrosion, enhancing longevity and reliability.
Limitations
- Not compatible with high-demand applications requiring more than 3.1 gallons per minute, which may limit its use in larger households.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution for applications such as camping, small sinks, or office breakrooms, the EcoSmart ECO 11 excels in providing endless on-demand hot water. Its patented self-modulating technology continuously monitors water temperature and flow rates, ensuring efficiency and consistent performance within one degree of the selected temperature. With an impressive 99% thermal energy efficiency, it heats water only when needed, significantly reducing energy waste compared to traditional heaters. Overall, the EcoSmart ECO 11 stands out as a top choice for those seeking an energy-efficient, compact, and reliable hot water solution.
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EcoSmart 18 KW Electric Tankless Water Heater
The adjustable valve sets the EcoSmart ECO 18 Electric Tankless Water Heater apart from its competitors. This feature allows users to fine-tune water temperature precisely, ensuring optimal comfort and efficiency. Constructed from high-quality materials, this unit measures 17 x 14 x 3.5 inches and operates at a voltage of 240, making it a compact yet powerful solution for instant hot water needs.
Key Advantages
- Utilizes 316-grade stainless steel for enhanced durability and corrosion resistance, ensuring a long lifespan even in harsh water conditions.
Limitations
- Not compatible with 120-volt systems, limiting its use in certain residential setups.
With its advanced self-modulating technology, the EcoSmart ECO 18 efficiently adjusts energy consumption based on demand, which can lead to significant savings on energy bills. This water heater is best for outdoor enthusiasts needing a reliable and efficient solution for hot water in remote locations or for those who require a continuous supply in their homes. Overall, it delivers exceptional performance, making it a top choice in the eco-friendly tankless water heater market.
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EcoSmart ECO 27 Electric Tankless Water Heater
The adjustable valve sets the EcoSmart ECO 27 Tankless Water Heater apart from its competitors. With a compact design measuring 17 x 17 x 3.5 inches, this electric heater is powered by a robust 27 kW heating element, operating at 240 volts. The unit features a digital temperature control system that allows precise adjustments, ensuring optimal hot water delivery.
Key Advantages
- Constructed with high-quality materials, such as 316-grade stainless steel, which resists corrosion and enhances durability.
Limitations
- Not compatible with traditional tank water heaters, requiring a dedicated electrical circuit for installation.
Overall, the EcoSmart ECO 27 is best for outdoor enthusiasts needing an efficient and reliable hot water solution for their activities. Its energy-efficient design and advanced features make it an excellent choice for those seeking to minimize their environmental impact while enjoying the comforts of hot water on demand.
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Ecosmart ECO 24 Electric Tankless Water Heater
The adjustable valve sets the Ecosmart ECO 24 apart in the realm of electric tankless water heaters. With dimensions of 17 x 17 x 3.5 inches, this unit is designed for compact spaces while delivering powerful performance. Made from high-quality materials, including a durable 316-grade stainless steel heat exchanger, it ensures longevity and resistance to corrosion, making it suitable for various water conditions.
Key Advantages
- The 99.8-percent energy efficiency of the Ecosmart ECO 24 significantly reduces energy costs, making it an eco-friendly choice.
Limitations
- It is not compatible with traditional tank water heaters, which may require additional considerations during installation.
Best for outdoor enthusiasts needing a reliable and efficient hot water solution, the Ecosmart ECO 24 excels in providing on-demand hot water for various applications, from showers to washing dishes. Its sleek design and digital output temperature display enhance usability, ensuring precise control over water temperature. Overall, the Ecosmart ECO 24 is an excellent investment for those looking to maximize energy savings while enjoying the convenience of instant hot water.
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EcoSmart ECO 8 Electric Tankless Water Heater
The adjustable valve sets the EcoSmart ECO 8 Tankless Water Heater apart from its competitors. This electric unit boasts an 8-kW power output, making it suitable for residential use. Constructed with 316-grade stainless steel, the heater resists corrosion, ensuring longevity and reliability. With compact dimensions of 12 x 8 x 4 inches, it can fit seamlessly into tight spaces, making it an ideal choice for various installations.
Key Advantages
- The digital temperature control allows for precise adjustments, providing users with the ability to set the desired water temperature easily.
- Its energy-efficient design contributes to lower utility bills, as it heats water on demand rather than maintaining a reservoir.
- Equipped with a self-modulating technology, it optimizes energy use based on the flow rate and temperature rise required.
Limitations
- Not compatible with traditional tank water heaters, which may require additional adjustments for integration.
- Installation may require a qualified electrician due to its electrical specifications.
Best for outdoor enthusiasts needing a compact, efficient solution for hot water on demand, the EcoSmart ECO 8 is a robust option for those looking to save space and energy without sacrificing performance.
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Faq about best ecosmart tankless water heaters:
1: What are EcoSmart tankless water heaters?
EcoSmart tankless water heaters provide on-demand hot water by heating water directly without a storage tank, offering energy efficiency and space savings.
2: How do EcoSmart tankless water heaters work?
They activate when a hot water tap is turned on, using electric coils or gas burners to heat water instantly as it flows through the unit.
3: What are the benefits of using EcoSmart tankless water heaters?
Benefits include energy savings, continuous hot water supply, compact design, and reduced risk of leaks compared to traditional tank heaters.
4: How do I choose the right EcoSmart tankless water heater?
Consider factors such as your household’s hot water demand, the heater’s flow rate, energy source, and installation requirements to select the appropriate model.
5: Are EcoSmart tankless water heaters energy-efficient?
Yes, they are designed to be energy-efficient, often using less energy than traditional water heaters, which can lead to lower utility bills.
6: What maintenance do EcoSmart tankless water heaters require?
Regular maintenance includes descaling to prevent mineral buildup and checking filters and vents to ensure optimal performance.
Conclusion
The EcoSmart ECO 11 Electric Tankless Water Heater exemplifies efficiency, providing instantaneous hot water while conserving energy, making it an optimal choice for smaller households. Its compact design and user-friendly interface further enhance its appeal, ensuring a seamless integration into modern living spaces.
Conversely, the EcoSmart 18 KW Electric Tankless Water Heater caters to larger demands, delivering robust performance without compromising on energy efficiency. Its advanced technology guarantees a consistent supply of hot water, making it ideal for families or homes with higher consumption needs. Together, these models represent the pinnacle of innovation in water heating solutions.




