Appliances / Heat pump water heaters / Ruud
Ruud PROUH50 T2 RU400-15
45 gal · 240-volt integrated heat pump water heater · 3 colour/finish versions
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- Price. Check what it costs at the store.
- Plus running cost. Add $2,001 of electricity over 13 years. That is the part the price tag hides.
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About the Ruud PROUH50 T2 RU400-15
The Ruud PROUH50 T2 RU400-15 is a 45 gal 240-volt integrated heat pump water heater certified by ENERGY STAR. Its official test figure is 846 kWh of electricity a year, which at the U.S. average price of 18.19¢ per kWh comes to $154 a year, or $2,001 over a typical 13-year life.
For the same hot water, a standard electric tank water heater would use about 3,448 kWh a year, so this model uses 75% less electricity and saves about $473 a year.
Among 371 240-volt integrated models it ranks #39 for running cost. The cheapest model of this type would save $480 in electricity over 13 years, though it may differ in size and features.
If you want the same type and a similar size for less to run, the GE Profile PH40S10BPY01 uses 773 kWh a year and would save about $173 over 13 years.
Listed features: smart / app control.
Cost to run where you live
846 kWh a year (ENERGY STAR test figure) × 18.19¢ per kWh, the average residential price in the U.S. for Jan–Aug 2026 (EIA). Your bill depends on your utility and how you use it.
Cheaper to run, same type and size
Or see every under 50 gallons model ranked.
| GE Profile PH40S10BPY01 | 40 gal | $141/yr | saves $173 |
| A. O. Smith HPS10-50H45DV 2 series | 46 gal | $151/yr | saves $35 |
| A. O. Smith HPSN10-50H45DV 2 series | 46 gal | $151/yr | saves $35 |
| A. O. Smith HPTS-50 2 series | 46 gal | $151/yr | saves $35 |
Specs
| Brand | Ruud |
| Models | PROUH50 T2 RU400-15, PROUH50 T2 RU400-30, PROUH50 T2 RU400-SO |
| Type | 240-volt integrated |
| Energy use | 846 kWh / year |
| Federal maximum for this type | 3448 kWh / year |
| Size | 45 gal |
| Width | 22.3 in |
| Features | Smart / app control |
| Tank size | 45 gal |
| First-hour rating | 52 gal |
| Efficiency (UEF) | 3.75 |
| Usage pattern | Medium-Usage |
| Voltage | 240 |
| Tank height | 61.8 in |
| Tank diameter | 22.3 in |
Specs and energy use from the ENERGY STAR certified products list (U.S. EPA). An asterisk in a model number stands for colour or finish codes. HouseholdLeak is not affiliated with ENERGY STAR or the EPA.
Questions people ask
How much does the Ruud PROUH50 T2 RU400-15 cost to run?
About $154 a year at the U.S. average electricity price (18.19¢/kWh), based on its ENERGY STAR rating of 846 kWh a year. In a state with expensive power it can be much more; pick your state on this page to see your number.
How much will the Ruud PROUH50 T2 RU400-15 cost in electricity over its life?
About $2,001 over 13 years, a typical life for a heat pump water heater. Add that to the price you pay to get the true cost to own.
Is the Ruud PROUH50 T2 RU400-15 energy efficient?
Yes. It is ENERGY STAR certified and uses 75% less electricity than a standard electric tank water heater.
Is there a cheaper water heater to run of the same type and size?
Yes. The GE Profile PH40S10BPY01 uses 773 kWh a year, about $173 less in electricity over 13 years.
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