For instant hot water at a single bathroom or kitchen sink on a budget.
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Every Rheem RTEX model we rank, smallest first. Ratings compare each against its own fuel.
| Model | Heating power | Rating | Price |
|---|---|---|---|
| Rheem RTEX-06T (this one) | 6.5 kW | 2.4/5 | $189 |
| Rheem RTEX-11 | 11 kW | 2.4/5 | $268.99 |
| Rheem RTEX-24 | 24 kW | 3.0/5 | $549 |
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.
| Model number | RTEX-06T |
|---|---|
| Heating | |
| Fuel | Electric |
| Electric power | 6.5 kW |
| Max flow | 1.6 GPM |
| UEF | 0.94 |
| Installation | |
| Voltage | 240 V |
| Breakers | 30 A total |
| Weight | 4 lb |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | 5 years |
| Parts warranty | 1 year |
For a small home or cabin on a 100 A service in a warm climate where a steady shower temperature matters more than flow. Homes with more service get more for the money from a Trend model.
Amazon $619For instant hot water at a kitchen or bathroom sink far from the main heater.
Amazon $229For a single shower or a pair of sinks in a warm climate. The EcoSmart ECO 11 costs less and carries a lifetime warranty.
Amazon $268.99Compare the Rheem RTEX-06T with any other tankless water heater →
More from Rheem: every Rheem product ranked.
