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
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.
- 18 kWHeating power
- 3 yearsHeat exchanger warranty
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
- Whole home electric hot water for a little over half the price of name brands
- Only two breakers, so it fits panels that cannot take three more
- A 2 year parts warranty, double what Rheem gives
- No published flow rate or UEF, so sizing it for your climate is guesswork
- Only a 3 year leak warranty
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its fuel. How we rank explains each one.
Specifications
| Model number | TEW18 |
|---|---|
| Heating | |
| Fuel | Electric |
| Electric power | 18 kW |
| Installation | |
| Voltage | 240 V |
| Breakers | 80 A total |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | 3 years |
| Parts warranty | 2 years |
Alternatives in this fuel
A mainstream whole home heater for a two bathroom house in a warm climate. The Stiebel Tempra 24 Trend costs about the same with a longer warranty.
Amazon $549For a small home or apartment in a warm climate that wants whole house hot water on two breakers. Amazon stock was low when checked.
Amazon $449Compare
Compare the Camplux TEW18 with any other tankless water heater →
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