EcoSmart ECO 11 Water Heater
The EcoSmart ECO 11 Electric Tankless Water Heater is a good choice for small households looking for an energy-efficient, compact water heating solution. While it offers appealing features such as self-modulating technology and a lifetime residential warranty, potential buyers should consider the need for professional installation and its suitability for limited hot water demand.
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
M My Store | $69.00 | May 31, 2023, may have changed | Buy Now |
M My Store | $69.00 | Jul 4, 2023, may have changed | Buy Now |
K kaidide | $74.26 | Apr 11, 2025, may have changed | Buy Now |
M My Store | $79.00 | May 15, 2023, may have changed | Buy Now |
S suakdahshop | $79.00 | Apr 11, 2025, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Used & Refurbished
✨ See 2 used & refurbished prices with ShopSavvy ProGet the app →Pros
- •Small size and lightweight design make it easy to install in tight spaces.
- •Energy-efficient due to patented self-modulating technology, reducing electricity bills.
- •Capable of providing hot water for one shower in cold climates or two in warmer regions.
- •Well-suited for small households, supporting multiple fixtures with better pressure.
- •Consistently heats water quickly and maintains temperature with manual adjustments.
- •Provides continuous hot water without the risk of running out like traditional tanks.
- •Backed by a limited lifetime warranty, offering reassurance for residential use.
- •Simple electrical requirements allow for straightforward installation if you’re familiar with wiring.
- •Looks sleek and unobtrusive, fitting into various locations easily.
- •Good value for the price compared to larger or traditional water heating options.
Cons
- •Installation typically requires a professional electrician and plumber, increasing upfront costs.
- •Demands a dedicated 60-amp double-pole breaker and #6 AWG wiring; not suitable for standard wiring setups.
- •Can produce a humming noise and electrical interference, especially affecting nearby induction appliances.
- •Limited flow rate at higher temperature rises; may struggle with simultaneous multiple hot water demands.
- •Some users reported temperature fluctuations during usage, especially with fluctuating water pressure.
- •Might not be suitable for larger households or multiple bathrooms due to flow limitations.
- •Requires careful attention to proper connection installation; leaks can occur if washers and fittings are overlooked.
- •Installation cost can be significant, averaging around $500-$700.
- •Water temperature can drop if other fixtures are used simultaneously, requiring manual adjustments.
- •May experience issues with scale buildup over time, though installing a filter can help mitigate this.
Bottom Line
The EcoSmart ECO 11 is a solid choice for small households or individual use, especially if space and energy savings matter. It offers reliable, on-demand hot water with an easy-to-spot size, making it a convenient upgrade from traditional tank heaters. However, it’s best to be prepared for professional installation and to ensure your electrical system can support its requirements. If you need a solution for larger households or multiple bathrooms, you might want to explore higher-capacity models or those with a greater flow rate.
What Reviewers Are Saying
Customer Ratings
Based on 5,391 reviews from Amazon
Professional Reviews
Common Questions
What electrical requirements are needed to install the EcoSmart ECO 11?Published 2 years ago
If you're thinking about setting up the EcoSmart ECO 11 Electric Tankless Water Heater, getting the electrical setup right is super important. This model uses smart technology to heat water only when ...
Read full answerHow energy efficient is the EcoSmart ECO 11 tankless water heater?Published 2 years ago
The EcoSmart ECO 11 Electric Tankless Water Heater is pretty energy-efficient, especially if you're using it for smaller tasks or in a warmer climate. Our research shows that it can handle up to 2.0 g...
Read full answerHow much hot water can the EcoSmart ECO 11 provide?Published 2 years ago
The EcoSmart ECO 11 Electric Tankless Water Heater can supply a varying amount of hot water, mainly depending on the temperature of the incoming water. The manufacturer mentions it can produce up to 3...
Read full answer📚More About EcoSmart ECO 11 Water Heater
Discussion
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