A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) vs Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4)
The Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4) 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 $210/year for the Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4) against $220/year for the A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) — a $10 annual difference. The A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) delivers more hot water in the peak hour (83 gal first-hour rating vs 80 gal).
| A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) | Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4) | |
|---|---|---|
| Uniform Energy Factor (UEF) | 3.84 | 4 |
| Fuel | Electric | Electric |
| First-hour rating | 83 gal | 80 gal |
| Rated storage volume | 68 gal | 61 gal |
| Draw pattern | High | High |
| Annual electricity use | 1292 kWh/yr | 1234 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 % | 450 % |
| Smart / connected capable | Yes | Yes |
| Refrigerant (GWP) | R-134a (GWP:1430) | R-134a (GWP:1430) |
| Compressor low-temp cutoff | 37 °F | 37.4 °F |
| Height | 61 in | 45.5 in |
| Diameter | 23 in | 21.8 in |
| ENERGY STAR certified | Yes | Yes |
Frequently asked questions
Which costs less to run, the A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) or the Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4)?
The Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4): about $210/year versus $220/year for the A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) at national average rates — a $10 annual difference.
Are the A. O. Smith Heat Pump 65-Gallon (CAHP-66 2) and Midea Water Heater 65-Gallon (CAN3-RSJ-15/250RDVN3-L4) both ENERGY STAR certified?
Yes — every water heater in this database is drawn from the U.S. EPA ENERGY STAR certified water heater datasets.