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
The Stiebel Eltron Tempra 24 Trend rates 3.6 among electric tankless water heaters; the Rinnai RE140e rates 3.3 among gas ones. The Stiebel Eltron Tempra 24 Trend costs $369.87 less ($514.23 vs $884.10).
Rinnai RE140e
#17 in GasFull review
A good outdoor heater for a one or two bathroom home in a mild climate.
Amazon $884.10 Amazon $884.10$884.10
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different fuel classes (electric and gas), and each is scored against the reference points for its own class, so a rating says how well each does among its own fuel peers. How we rank explains each factor.
| Factor weight | Stiebel Eltron Tempra 24 Trend | Rinnai RE140e |
|---|---|---|
| Overall rating | 3.6/5 | 3.3/5 |
| Value 35% | 56 $21.43 per kW ($514.23, 24 kW) | 58 $6.32 per 1,000 BTU/h ($884.10, 140,000 BTU/h) |
| Heating power 25% | 52 24 kW | 25 140,000 BTU/h |
| Efficiency 15% | 87 0.97 UEF | 6 0.81 UEF |
| Warranty 25% | 57 7-year heat exchanger warranty | 100 15-year heat exchanger warranty |
Specifications
| Stiebel Eltron Tempra 24 Trend | Rinnai RE140e | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Gas |
| Gas type | - | Natural gas or propane |
| Gas input | - | 10,400 to 140,000 BTU/h |
| Electric power | 24 kW | - |
| Max flow | 5 GPM | 5.3 GPM |
| UEF | 0.97 | 0.81 |
| Condensing | - | No |
| ENERGY STAR | - | No |
| Installation | ||
| Venting | - | Outdoor |
| Voltage | 240 V | - |
| Breakers | 100 A total | - |
| Weight | 16.1 lb | 38.3 lb |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 7 years | 15 years |
| Parts warranty | 3 years | 5 years |