Stiebel Eltron Tempra 36 Trend
#2 in ElectricFull review
The pick for a larger home with 300 A service that wants electric whole house hot water, even in cooler regions. Few electric heaters match its power and warranty.
Amazon $749$749
The Stiebel Eltron Tempra 36 Trend rates 4.1 among electric tankless water heaters; the Eccotemp 7GB Builder Grade rates 4.1 among gas ones. The Eccotemp 7GB Builder Grade costs $250 less ($499 vs $749).
Eccotemp 7GB Builder Grade
#3 in GasFull review
A strong value outdoor heater for a natural gas home in a mild climate, with a better warranty than most budget rivals.
Amazon $499$499
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 36 Trend | Eccotemp 7GB Builder Grade |
|---|---|---|
| Overall rating | 4.1/5 | 4.1/5 |
| Value 35% | 58 $20.81 per kW ($749, 36 kW) | 100 $2.77 per 1,000 BTU/h ($499, 180,000 BTU/h) |
| Heating power 25% | 100 36 kW | 76 180,000 BTU/h |
| Efficiency 15% | 100 0.98 UEF | 50 UEF not published (neutral score used) |
| Warranty 25% | 57 7-year heat exchanger warranty | 50 10-year heat exchanger warranty |
Specifications
| Stiebel Eltron Tempra 36 Trend | Eccotemp 7GB Builder Grade | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Gas |
| Gas type | - | Natural gas |
| Gas input | - | 180,000 BTU/h |
| Electric power | 36 kW | - |
| Max flow | 7.5 GPM | 7 GPM |
| UEF | 0.98 | - |
| Condensing | - | No |
| Installation | ||
| Venting | - | Outdoor |
| Voltage | 240 V | - |
| Breakers | 150 A total | - |
| Weight | 19 lb | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 7 years | 10 years |
| Parts warranty | 3 years | 5 years |