A good outdoor heater for a one or two bathroom home in a mild climate.
Amazon $884.10 Amazon $884.10
A low cost outdoor heater from a major brand for a small home, cabin or condo in a mild climate.
- 120,000 BTU/hHeating power
- 5.3 GPMMax flow
- 0.81UEF
- 10 yearsHeat exchanger warranty
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
- The cheapest Rinnai outdoor model, light enough at 30 lb for an easy wall mount
- No vent pipe needed
- Covers two fixtures at once for a small home or cabin
- 120,000 BTU/h struggles with two showers in winter in cold regions
- Shorter heat exchanger warranty than Rinnai’s RE series
- A 0.81 UEF uses more gas than a condensing heater
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 | REU-AM1620WD-US |
|---|---|
| Heating | |
| Fuel | Gas |
| Gas type | Natural gas or propane |
| Gas input | 15,500 to 120,000 BTU/h |
| Max flow | 5.3 GPM |
| UEF | 0.81 |
| Condensing | No |
| ENERGY STAR | No |
| Installation | |
| Venting | Outdoor |
| Weight | 29.7 lb |
| Features | |
| Built-in recirculation | No |
| Wi-Fi | No |
| Heat exchanger warranty | 10 years |
| Parts warranty | 5 years |
Alternatives in this fuel
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