Appliances / Heat pump water heaters / A. O. Smith vs Rheem
A. O. Smith vs Rheem heat pump water heaters: which costs less to run?
Every ENERGY STAR certified A. O. Smith and Rheem heat pump water heater, compared by yearly electricity cost at the U.S. average price.
Typical A. O. Smith model
$233/yr
61 models
Typical Rheem model · cheaper to run
$166/yr
61 models
Difference over 13 years
$861
typical model, in electricity
Same size, side by side
Bigger models use more power, so this is the fair comparison.
| Size | A. O. Smith typical | Rheem typical | Cheapest to run |
|---|---|---|---|
| Under 50 gallons | $164 (27) | $156 (31) | Rheem PROPH40 T2 RH375-15 · $117/yr |
| 50 to 65 gallons | $244 (4) | $177 (15) | Rheem PROPH65 T2 RH375-15 · $161/yr |
| 66 gallons and up | $238 (30) | $221 (15) | Rheem PROPH80 T2 RH375-15 · $158/yr |
Cheapest A. O. Smith models to run
- HPS10-50H45DV 2 series 46 gal · $151/yr
- HPSN10-50H45DV 2 series 46 gal · $151/yr
- HPTS-50 2 series 46 gal · $151/yr
- CAHP-50 2 series 46 gal · $161/yr
- HPA10-50H45DV 2 series 46 gal · $161/yr
Cheapest Rheem models to run
- PROPH40 T2 RH375-15 36 gal · $117/yr
- PROPH40 T2 RH400-15 36 gal · $117/yr
- XE40T10H22U0 36 gal · $117/yr
- PROPH40 T0 RH120-M 36 gal · $142/yr
- PROPH40 T0 RH120-MSO 36 gal · $142/yr
Questions
Are A. O. Smith or Rheem heat pump water heaters cheaper to run?
Rheem. The typical (median) Rheem model costs $166 a year in electricity, against $233 for A. O. Smith, about $861 over a 13-year life. Compare models of the same size, because bigger models use more.
What is the cheapest A. O. Smith heat pump water heater to run?
The A. O. Smith HPS10-50H45DV 2 series, at $151 a year (831 kWh).
What is the cheapest Rheem heat pump water heater to run?
The Rheem PROPH40 T2 RH375-15, at $117 a year (643 kWh).