Bosch Water heater 80-Gallon vs LG APHWC502M 50-Gallon
The LG APHWC502M 50-Gallon is the more efficient unit: UEF 4.2 versus 4 — about 5% less energy for the same hot water. At national average rates that works out to about $201/year for the LG APHWC502M 50-Gallon against $211/year for the Bosch Water heater 80-Gallon — a $10 annual difference. The Bosch Water heater 80-Gallon delivers more hot water in the peak hour (91 gal first-hour rating vs 81 gal). Only the Bosch Water heater 80-Gallon is connected-capable (app control, utility programs).
| Bosch Water heater 80-Gallon | LG APHWC502M 50-Gallon | |
|---|---|---|
| Uniform Energy Factor (UEF) | 4 | 4.2 |
| Fuel | Electric | Electric |
| First-hour rating | 91 gal | 81 gal |
| Rated storage volume | 74 gal | 53 gal |
| Draw pattern | High | High |
| Annual electricity use | 1240 kWh/yr | 1181 kWh/yr |
| Heat pump type | 240 Volt Integrated HPWH | 240 Volt Integrated HPWH |
| Input voltage | 240 | 240 |
| Max current draw | 24 A | 24 A |
| Recovery efficiency | 450 % | 440 % |
| Smart / connected capable | Yes | No |
| Refrigerant (GWP) | R-134a (GWP:1430) | R-134a (GWP:1430) |
| Compressor low-temp cutoff | 37.4 °F | 23 °F |
| Height | 41.7 in | 47.6 in |
| Diameter | 21.8 in | 19.7 in |
| ENERGY STAR certified | Yes | Yes |
Frequently asked questions
Which costs less to run, the Bosch Water heater 80-Gallon or the LG APHWC502M 50-Gallon?
The LG APHWC502M 50-Gallon: about $201/year versus $211/year for the Bosch Water heater 80-Gallon at national average rates — a $10 annual difference.
Are the Bosch Water heater 80-Gallon and LG APHWC502M 50-Gallon both ENERGY STAR certified?
Yes — every water heater in this database is drawn from the U.S. EPA ENERGY STAR certified water heater datasets.