
EcoSmart ECO 27 - Whole Home
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The EcoSmart ECO 27 is a 27 kW whole-home electric tankless water heater for homes with 2–3 bathrooms in warmer climates. It heats water on demand, offers digital temperature control in 1° increments, and uses copper and stainless steel heat exchangers. Compared with smaller tankless units, it delivers higher flow but requires significant electrical capacity. Owners praise endless hot water and space savings, but some find installation costly and performance sensitive to incoming water temperature.
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Reviewers generally praise the EcoSmart ECO 27 for providing endless hot water and saving space. Many note the need for a large electrical service and professional installation. Some in colder regions report insufficient temperature rise.
The EcoSmart ECO 27 is an electric tankless water heater for whole-home use. It has a 27 kW self-modulating heating system and supplies hot water on demand for homes with 2 to 3 bathrooms, depending on climate.
It heats water only when needed, which can reduce water-heating costs by up to 50%. The heat exchangers are made of copper and stainless steel. The unit mounts on the wall and has a compact design that frees up storage space.
Digital temperature control adjusts in 1° increments. Warmer regions with higher incoming water temperatures get the strongest flow rates. It can replace a traditional tank heater.







