Stiebel Eltron Tempra 29 Trend
#3 in ElectricFull review
For homes with 200 A service in mild climates that want two showers at once from one heater.
Amazon $639.99$639.99
3.4/5
For a single shower or a pair of sinks in a warm climate, with a lifetime warranty if a pro installs it.
- 13 kWHeating power
- 3.2 GPMMax flow
- 0.92UEF
- Limited lifetimeHeat exchanger warranty
Check price at Amazon$244.78
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Can run a shower on its own in warm climates
- Lifetime warranty when professionally installed and registered
- Small enough to mount in a closet or under a vanity
Cons
- Needs a 60 A circuit, a big run for a point of use heater
- Lower efficiency than most heaters here
- The lifetime warranty is void without professional install and registration within 30 days
The EcoSmart ECO family
Every EcoSmart ECO model we rank, smallest first. Ratings compare each against its own fuel.
| Model | Heating power | Rating | Price |
|---|---|---|---|
| EcoSmart ECO 8 | 8 kW | 3.2/5 | $219 |
| EcoSmart ECO 11 (this one) | 13 kW | 3.4/5 | $244.78 |
| EcoSmart ECO 36 | 36 kW | 4.3/5 | $699 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.
Specifications
| Model number | ECO 11 |
|---|---|
| Heating | |
| Fuel | Electric |
| Electric power | 13 kW |
| Max flow | 3.2 GPM |
| UEF | 0.92 |
| Installation | |
| Voltage | 240 V |
| Breakers | 60 A total |
| Weight | 6.5 lb |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | Limited lifetime |
Alternatives in this fuel
Stiebel Eltron Tempra 24 Trend
#4 in ElectricFull review
A whole home heater for a two bathroom house in a warm or mild climate with 150 A service or more. The 7 year leakage warranty is the main reason to pay over the Rheem.
Amazon $514.23$514.23
Westinghouse WET-24K-G
#6 in ElectricFull review
For buyers who want app control on a whole home electric heater. Without published warranty terms, the Stiebel Tempra 24 Trend is the safer buy at the same price.
Amazon $499.99$499.99
Compare
Compare the EcoSmart ECO 11 with any other tankless water heater →
More from EcoSmart: every EcoSmart product ranked.