The verdict
The ECO 27 is the high-flow pick — EcoSmart's best GPM-to-price ratio for households with multiple simultaneous hot-water demands.
EcoSmart ECO 27
Strengths
- +6.6 GPM max — highest in this lineup
- +Compact unit saves install space
- +0.3 GPM minimum activation
- +Lifetime warranty on heating elements
Watch-outs
- −Requires 240V triple-pole breaker
- −Some undersizing complaints below 40°F inlet
- −Customer support response variable
How it compares
Highest GPM. Lifetime element warranty. Undersizes in deep cold.
Who this is for
At a glance: homes with 2-3 simultaneous showers in mild climates.
Why you’d buy the EcoSmart ECO 27
- 6.6 GPM max — highest in this lineup.
- Compact unit saves install space.
- 0.3 GPM minimum activation.
Why you’d skip it
- Requires 240V triple-pole breaker.
- Some undersizing complaints below 40°F inlet.
- Customer support response variable.
Rating sources
Our 4.6 score is the average of these published ratings. More about methodology.
