Appliances / Heat pump water heaters / A. O. Smith vs Ruud
A. O. Smith vs Ruud heat pump water heaters: which costs less to run?
Every ENERGY STAR certified A. O. Smith and Ruud 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 Ruud model · cheaper to run
$164/yr
35 models
Difference over 13 years
$896
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 | Ruud typical | Cheapest to run |
|---|---|---|---|
| Under 50 gallons | $164 (27) | $156 (17) | Ruud PROUH40 T2 RU375-15 · $117/yr |
| 50 to 65 gallons | $244 (4) | $177 (9) | Ruud PROUH65 T2 RU375-15 · $161/yr |
| 66 gallons and up | $238 (30) | $221 (9) | Ruud PROUH80 T2 RU375-15 · $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 Ruud models to run
- PROUH40 T2 RU375-15 36 gal · $117/yr
- PROUH40 T2 RU400-15 36 gal · $117/yr
- PROUH40 T0 RU120-M 36 gal · $142/yr
- PROUH40 T0 RU120-MSO 36 gal · $142/yr
- PROUH50 T2 RU375-15 45 gal · $154/yr
Questions
Are A. O. Smith or Ruud heat pump water heaters cheaper to run?
Ruud. The typical (median) Ruud model costs $164 a year in electricity, against $233 for A. O. Smith, about $896 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 Ruud heat pump water heater to run?
The Ruud PROUH40 T2 RU375-15, at $117 a year (643 kWh).