What it delivers
The Stiebel Eltron Tempra 36 Trend 36 kW Electric Tankless Water Heater is a whole-house electric tankless rated at 36 kW on 240 volts. Its listing gives a maximum flow of 0.8 GPM.
Expect about 0.8 GPM with cold winter water (a 70°F rise) and 0.8 GPM when the inlet is milder (45°F rise); that is less than one 2 GPM shower in January. Try your own inlet temperature.
At 240 volts 36 kW is about 150 amps. Whether your panel can carry it alongside heating and cooking loads is an electrician's call. On its own it takes more than 60% of a 200-amp service.
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 36 Trend.
The listing gives dimensions of 16.63 in (W) x 14.5 in (H) and a weight of 19 lb.
Right unit for this house?
Install it when
- Light use 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
- 36 kW
- Up to 0.8 GPM
- No venting or gas line
Trade-offs
- Draws about 150 A
- Flow drops with cold inlet water
- 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 36 Trend | Retailer |
|---|---|---|
| Dimensions (seller) | 16.63"W x 14.5"H | Retailer |
| Features (seller) | LED Display | Retailer |
| Power | 36 kW | Retailer |
| Voltage | 240 V | Retailer |
| Max flow (maker) | 0.77 GPM | Retailer |
| Product weight | 19 lb | Retailer |
| Material | Copper | Retailer |
Rival units at this flow
More electric tankless water heaters rated for similar demand
- Westinghouse ET024CA0G 24 kW Electric Tankless Water Heater
- Stiebel Eltron Tempra 20 Plus 19.2 kW Electric Tankless Water Heater
- Mount Steel MST-TLS18A 19 kW Electric Tankless Water Heater
- ThermoMate ET360 36 kW 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 light use in mild climates.
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