Stiebel Eltron DHX 12-2 Trend
#11 in ElectricFull review
For adding fast hot water to a far sink or a single shower in a warm climate. The long warranty sets it apart from cheaper point of use units.
Amazon $266.14$266.14
The Stiebel Eltron DHX 12-2 Trend is the better tankless water heater overall, rated 3.1 to 3.0. The Stiebel Eltron DHX 12-2 Trend leads on warranty. The Camplux TEW18 wins on value and heating power. The Stiebel Eltron DHX 12-2 Trend costs $12.81 less ($266.14 vs $278.95).
Camplux TEW18
#13 in ElectricFull review
A budget whole home heater for a small home in a warm climate. Buyers who want published flow and efficiency figures should pay more for a Stiebel or EcoSmart.
Amazon $278.95$278.95
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 DHX 12-2 Trend for warranty (7-year heat exchanger warranty vs 3-year heat exchanger warranty).
- Choose the Camplux TEW18 for value ($15.50 per kW ($278.95, 18 kW) vs $22.18 per kW ($266.14, 12 kW)) and heating power (18 kW vs 12 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 DHX 12-2 Trend | Camplux TEW18 |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 35% | 54 $22.18 per kW ($266.14, 12 kW) | 81 $15.50 per kW ($278.95, 18 kW) |
| Heating power 25% | 4 12 kW | 28 18 kW |
| Efficiency 15% | 75 0.96 UEF | 50 UEF not published (neutral score used) |
| Warranty 25% | 57 7-year heat exchanger warranty | 0 3-year heat exchanger warranty |
Specifications
| Stiebel Eltron DHX 12-2 Trend | Camplux TEW18 | |
|---|---|---|
| Heating | ||
| Fuel | Electric | Electric |
| Electric power | 12 kW | 18 kW |
| Max flow | 2.5 GPM | - |
| UEF | 0.96 | - |
| Installation | ||
| Voltage | 240 V | 240 V |
| Breakers | 50 A total | 80 A total |
| Weight | 5.5 lb | - |
| Features | ||
| Built-in recirculation | No | No |
| Wi-Fi | No | No |
| Heat exchanger warranty | 7 years | 3 years |
| Parts warranty | 3 years | 2 years |