What it delivers
The Stiebel Eltron Tempra 20 Trend 19.2 kW Electric Tankless Water Heater is a whole-house electric tankless rated at 19.2 kW on 240 volts. Its listing gives a maximum flow of 2.0 GPM.
Expect about 1.9 GPM with cold winter water (a 70°F rise) and 2.0 GPM when the inlet is milder (45°F rise); that is less than one 2 GPM shower in January. Check your house in the planner.
At 240 volts 19.2 kW is about 80 amps. The requirement calculator shows it at 208 V too; an electrician confirms the panel.
No flue, no gas line and a compact box on the wall; the trade-off is that a cold winter inlet cuts its flow sharply.
Listed details: features: LED Display; material: Copper; model: Tempra 20 Trend.
The listing gives dimensions of 16.63 in (W) x 14.5 in (H) and a weight of 16.1 lb.
Right unit for this house?
Install it when
- One shower at a time in mild climates
- Homes with no gas service
Look at another unit when
- Panels without spare capacity
- More than 1 shower at once in cold winters
Strengths and trade-offs
Strengths
- 19.2 kW
- Up to 2.0 GPM
- No venting or gas line
Trade-offs
- Draws about 80 A
- Winter flow is much lower
- Breaker needs not stated
Install limits
- Figures are the maker's or seller's own. Flow at a rise is our estimate from the input; gas, venting and electrical work needs a licensed professional.
Rated performance
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | Tempra 20 Trend | Retailer |
|---|---|---|
| Dimensions (seller) | 16.63"W x 14.5"H | Retailer |
| Features (seller) | LED Display | Retailer |
| Power | 19.2 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 2.01 GPM | Retailer |
| Product weight | 16.1 lb | Retailer |
| Material | Copper | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- Stiebel Eltron Tempra 24 Trend 24 kW Electric Tankless Water Heater
- WINTEMP WM27V 27 kW Electric Tankless Water Heater
- ThermoMate EH270 27 kW Electric Tankless Water Heater
- EcoSmart ECOS 18 Electric Tankless Water Heater
Full electric tankless water heaters spec grid · Every Stiebel Eltron unit in the catalog
Final verdict
A well-specified whole-house electric tankless for one shower at a time in mild climates.
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