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 is the better tankless water heater overall, rated 3.6 to 3.4. The Westinghouse WET-24K-G costs $14.24 less ($499.99 vs $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
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
Each factor is scored 0-100 against the same fixed reference points for every electric tankless water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Stiebel Eltron Tempra 24 Trend | Westinghouse WET-24K-G |
|---|---|---|
| Overall rating | 3.6/5 | 3.4/5 |
| Value 35% | 56 $21.43 per kW ($514.23, 24 kW) | 58 $20.83 per kW ($499.99, 24 kW) |
| Heating power 25% | 52 24 kW | 52 24 kW |
| Efficiency 15% | 87 0.97 UEF | 50 UEF not published (neutral score used) |
| Warranty 25% | 57 7-year heat exchanger warranty | 50 heat exchanger warranty not published (neutral score used) |
Specifications
| Stiebel Eltron Tempra 24 Trend | Westinghouse WET-24K-G | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Electric |
| Electric power | 24 kW | 24 kW |
| Max flow | 5 GPM | 5.5 GPM |
| UEF | 0.97 | - |
| Installation | ||
| Voltage | 240 V | 240 V |
| Breakers | 100 A total | 120 A total |
| Weight | 16.1 lb | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | Yes |
| Heat exchanger warranty | 7 years | - |
| Parts warranty | 3 years | - |