Rheem ECOHS160IP
Rheem ECOHS160IP is a gas tankless water heater from Rheem rated 4.6 GPM at a 0.96 UEF.
| Uniform Energy Factor (UEF) | 0.96 |
|---|---|
| Annual gas use (natural gas) | 176 therms/yr |
| Recovery efficiency | 97 % |
| Annual propane use | 192.35 gal/yr |
| Fuel | Propane |
|---|
| Max flow rate | 4.6 GPM |
|---|---|
| Draw pattern | High |
| Minimum activation flow | 0.4 GPM |
| Gas input rate | 157 kBTU/h |
|---|
| Max current draw | 2 A |
|---|---|
| Vent type | Direct Vent |
| Vent size | 2 |
| Smart / connected capable | No |
|---|
| Width | 18.1 in |
|---|---|
| Depth | 13.6 in |
| ENERGY STAR certified | Yes |
|---|
Real flow rate by climate
A tankless heater's usable flow depends on how far it must raise incoming water temperature. Sustained hot-water flow of the Rheem ECOHS160IP at common temperature rises (a typical shower uses about 2 GPM of mixed water):
| Temperature rise | Climate | Sustained flow | Simultaneous showers |
|---|---|---|---|
| 45 °F | Warm climate (~75 °F groundwater) | 4.6 GPM | 2 |
| 55 °F | Mild climate (~65 °F groundwater) | 4.6 GPM | 2 |
| 70 °F | Cold climate (~50 °F groundwater) | 4.3 GPM | 2 |
| 77 °F | DOE test condition | 3.9 GPM | 1 |
Compare the Rheem ECOHS160IP
- Rheem ECOHS160IP vs A. O. Smith ACTH-199M-(N,P) 1
- Rheem ECOHS160IP vs A. O. Smith ATHR-160M 1
- Rheem ECOHS160IP vs A. O. Smith ATHR-160M 1 (ATHR-160X3 1)
- Rheem ECOHS160IP vs American ATHR-160M 1 (MTHR-160M 1)
- Rheem ECOHS160IP vs American ATHR-160M 1 (MTHR-160X3 1)
- Rheem ECOHS160IP vs American ATHR-180M 1 (MTHR-180M 1)
- Rheem ECOHS160IP vs Bosch Greentherm (T9800 SE 160)
- Rheem ECOHS160IP vs Bosch Greentherm (T9800 SEO 160)
Similar water heaters
- Bosch Greentherm (T9800 SE 160) (UEF 0.95)
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- Bradford White RTG-K-160N2 (UEF 0.95)
- Bradford White RTG-K-160N2 (RTG-K-160N1) (UEF 0.95)
- Friedrich FDTGH-S84I (UEF 0.96)
Frequently asked questions
Is the Rheem ECOHS160IP ENERGY STAR certified?
Yes, the Rheem ECOHS160IP holds a current ENERGY STAR certification for water heating efficiency (UEF 0.96).
How much does the Rheem ECOHS160IP cost to run per year?
About $519 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What venting does the Rheem ECOHS160IP use?
The Rheem ECOHS160IP uses Direct Vent venting with 2 in vent connections. Matching the existing vent type is usually the cheapest replacement path.
Is the Rheem ECOHS160IP a smart water heater?
No, the Rheem ECOHS160IP is not connected-capable — it has no app connectivity or demand-response support.
Sources
- data.energystar.gov (retrieved 2026-07-17)