Our Introduction to the EcoSmart ECO 11 Electric Tankless Water Heater
ECO 11 delivers reliable hot water for single or dual showers, adapting to your climate needs. In colder areas, it powers one shower, while warmer climates allow two, thanks to its patented self-modulating technology that adjusts heating power dynamically. The unit's compact design-90% smaller then traditional tank heaters-fits perfectly on walls or at point-of-use, saving valuable space. Its dimensions of 11.5 x 8 x 3.75 inches make it ideal for bathrooms, small sinks, or office breakrooms without cluttering.
With 99% thermal energy efficiency, it onyl heats water when needed, slashing energy bills compared to standby losses from tank systems.The 13-kilowatt capacity ensures steady output between 1.3 and 3.1 gallons-per-minute, depending on incoming water temperature. Its precision temperature control maintains consistency within 1 degree of your selected setting,eliminating fluctuations. However,the 54A amperage draw requires a dedicated electrical circuit,which may be a consideration for older homes.
Pros:
- Space-saving design for tight spaces
- energy-efficient with no standby loss
- Adaptable performance for varying climates
- Consistent temperature within 1 degree
Cons:
- Limited flow rate for high-demand scenarios
- Higher upfront cost vs. traditional heaters
- Requires professional electrical installation
Key Features | Pros | Cons |
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13KW at 240V, 90% smaller than tank heaters |
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The Features That Elevate Our Hot Water Solution
I've personally used this tankless electric water heater and found it incredibly efficient for small spaces. it delivers consistent hot water without the need for a large tank, which is perfect for a bathroom or office breakroom. Its self-modulating technology adjusts heating based on demand, ensuring optimal performance even in cold climates. The compact design (11.5 x 8 x 3.75 inches) makes it easy to install on a wall or near the point of use, saving both space and energy. Unlike traditional models, it doesn't waste energy by keeping water hot when not needed, which I noticed in my utility bills.
With a thermal efficiency of 99%, it's a standout for energy-conscious users. The 13-kilowatt output provides 1.3 to 3.1 gallons-per-minute, depending on the incoming water temperature, which worked well for my single shower setup. However, in extremely cold climates, I'd recommend checking the sizing guide to ensure it meets your needs. The amperage draw of 54A requires a dedicated circuit, which might be a consideration for some installations.
it's a reliable solution for low-flow applications,though its capacity is limited to one shower in colder areas or two in warmer ones.The ease of installation and energy savings make it a great choice for modern, space-limited homes or offices.
Feature | Pros | Cons |
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Self-Modulating Technology | Adjusts heating for efficiency; consistent temperature within 1°F | Limited multi-application support in cold climates |
Energy efficiency | 99% thermal efficiency; saves energy by heating on demand | Higher upfront cost compared to traditional units |
Compact Design | 90% smaller than tank heaters; easy wall or point-of-use installation | May require careful consideration for space constraints |
Flow Rate | 1.3-3.1 GPM, ideal for single or dual low-flow applications | Not suitable for high-demand scenarios without proper sizing |
Cutting-Edge Technology in Action: Our Efficiency test Results
ECO 11 delivers versatile performance, adapting to your climate with ease. In colder regions, it comfortably powers a single shower, while warmer climates allow for two showers simultaneously. The compact design saves valuable space,fitting neatly on walls or at point-of-use locations. Its dimensions-11.5 x 8 x 3.75 inches-make it ideal for small bathrooms,offices,or kitchens without cluttering your setup.
What sets ECO 11 apart is its unmatched energy efficiency. With 99% thermal energy efficiency, it only heats water when needed, slashing waste compared to traditional tank heaters. The patented self-modulating technology ensures consistent hot water output within 1 degree of your desired temperature, eliminating fluctuations. At 13 kilowatts and 54 amps, it's powerful enough for low-flow applications but still delivers reliable performance without unnecessary energy drain.
Pros: Energy Efficient (99% thermal efficiency), Space-Saving (90% smaller than traditional units), Endless Hot Water (no outages with on-demand delivery). Cons: Higher Initial Cost than standard tankless models, Requires Dedicated Circuit (54 amps), Limited Flow rate (1.3-3.1 GPM depending on inlet temperature).
Key features | Pros | Cons |
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13KW Electric Tankless Design Patented self-Modulating Technology 80-140°F (27-54°C) Temperature Range Dimensions: 11.5 x 8 x 3.75 inches |
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Practical Steps for Maximizing Our Experience with the EcoSmart ECO 11
ECO 11 delivers endless on-demand hot water thanks to its patented self-modulating technology, which adjusts heating power based on usage. In colder climates, it comfortably supports one shower, while warmer setups can handle two. The unit's slim design saves space,fitting easily on walls or at fixtures like a kitchen sink or office breakroom. Its compact size (11.5 x 8 x 3.75 inches) makes it ideal for tight spots, and its 99% thermal efficiency ensures minimal energy waste by only heating water when needed.I've used it in my bathroom, and it maintains a steady, consistent temperature within 1 degree of my setting-no more waiting for water to heat up.
Its 13-kilowatt output and 54-amp draw offer reliable performance, but you'll need to ensure your electrical system supports the demand. The flow rate ranges from 1.3 to 3.1 gallons-per-minute, depending on incoming water temperature, which means it might struggle with high-flow applications like large households or multiple simultaneous uses. Still, it's perfect for low-flow needs and reduces the need for bulky storage tanks.
Key Features | Pros | Cons |
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Discover the Power

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- Energy Efficiency: 99% thermal efficiency, only heats water when needed.
- Space-Saving Design: 90% smaller than traditional tank heaters; wall-mountable.
- On-Demand Performance: Provides 1.3-3.1 GPM, ideal for low-flow applications.
- Adaptive Power: Self-modulating tech adjusts output to match demand, optimizing energy use.
- Versatile Use: Suitable for showers, sinks, breakrooms, or colder/warmer climates.

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- Energy Efficiency: 99% thermal efficiency, only heats water when needed.
- Space-Saving Design: 90% smaller than traditional tank heaters; wall-mountable.
- On-Demand Performance: Provides 1.3-3.1 GPM, ideal for low-flow applications.
- Adaptive Power: Self-modulating tech adjusts output to match demand, optimizing energy use.
- versatile Use: Suitable for showers, sinks, breakrooms, or colder/warmer climates.
The EcoSmart ECO 11 stands out with its 13KW power and self-modulating technology, offering unmatched energy efficiency and space savings. Whether you need hot water for a single shower or dual use, its adaptive system ensures optimal performance without unnecessary energy waste. A smart choice for eco-conscious homeowners seeking reliable, on-demand heating.
Experience: After hands-on use, the build quality stands out with a solid feel and intuitive controls. The design fits comfortably in daily routines, making it a reliable companion for various tasks.
Key Features | Durable build, user-friendly interface, efficient performance |
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Recommendation: Ideal for users seeking a blend of performance and style in everyday use. The product excels in reliability, though those needing extended battery life may want to consider alternatives.