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
The Stiebel Eltron Tempra 29 Trend is the better tankless water heater overall, rated 3.8 to 3.4. The Stiebel Eltron Tempra 29 Trend leads on heating power. The Westinghouse WET-24K-G costs $140 less ($499.99 vs $639.99).
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.
Which should you buy?
- Choose the Stiebel Eltron Tempra 29 Trend for heating power (28.8 kW vs 24 kW).
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 29 Trend | Westinghouse WET-24K-G |
|---|---|---|
| Overall rating | 3.8/5 | 3.4/5 |
| Value 35% | 53 $22.22 per kW ($639.99, 28.8 kW) | 58 $20.83 per kW ($499.99, 24 kW) |
| Heating power 25% | 71 28.8 kW | 52 24 kW |
| Efficiency 15% | 100 0.98 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 29 Trend | Westinghouse WET-24K-G | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Electric |
| Electric power | 28.8 kW | 24 kW |
| Max flow | 6 GPM | 5.5 GPM |
| UEF | 0.98 | - |
| Installation | ||
| Voltage | 240 V | 240 V |
| Breakers | 120 A total | 120 A total |
| Weight | 19 lb | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | Yes |
| Heat exchanger warranty | 7 years | - |
| Parts warranty | 3 years | - |