RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) vs Rinnai REHP80 80-Gallon (REHP80C)
The Rinnai REHP80 80-Gallon (REHP80C) is the more efficient unit: UEF 4 versus 3.84 — about 4% less energy for the same hot water. At national average rates that works out to about $208/year for the Rinnai REHP80 80-Gallon (REHP80C) against $220/year for the RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) — a $12 annual difference. The Rinnai REHP80 80-Gallon (REHP80C) delivers more hot water in the peak hour (91 gal first-hour rating vs 83 gal). Only the RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) is connected-capable (app control, utility programs).
| RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) | Rinnai REHP80 80-Gallon (REHP80C) | |
|---|---|---|
| Uniform Energy Factor (UEF) | 3.84 | 4 |
| Fuel | Electric | Electric |
| First-hour rating | 83 gal | 91 gal |
| Rated storage volume | 68 gal | 75 gal |
| Draw pattern | High | High |
| Annual electricity use | 1292 kWh/yr | 1225 kWh/yr |
| Heat pump type | 240 Volt Integrated HPWH | 240 Volt Integrated HPWH |
| Input voltage | 240 | 240 |
| Max current draw | 22 A | 24 A |
| Recovery efficiency | 435 % | 454 % |
| Smart / connected capable | Yes | No |
| Refrigerant (GWP) | R-134a (GWP:1430) | R-134a (GWP:1430) |
| Compressor low-temp cutoff | 37 °F | 37.4 °F |
| Height | 61 in | 74.2 in |
| Diameter | 23 in | 25.7 in |
| ENERGY STAR certified | Yes | Yes |
Frequently asked questions
Which costs less to run, the RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) or the Rinnai REHP80 80-Gallon (REHP80C)?
The Rinnai REHP80 80-Gallon (REHP80C): about $208/year versus $220/year for the RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) at national average rates — a $12 annual difference.
Are the RELIANCE WATER HEATERS Heat Pump 65-Gallon (10-66-DHPTA 2) and Rinnai REHP80 80-Gallon (REHP80C) both ENERGY STAR certified?
Yes — every water heater in this database is drawn from the U.S. EPA ENERGY STAR certified water heater datasets.