Rheem PROPH50 T0 RH120-M vs Ruud PROUH50 T0 RU120-M
Two of the 120-volt heat pump water heaters in our best 120-volt heat pump water heaters comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: Official UEF 3, first-hour rating 55 gallons, 46 gallons certified storage, ENERGY STAR connected-capable
Check price at AmazonBest for: Official UEF 3, first-hour rating 55 gallons, 46 gallons certified storage, ENERGY STAR connected-capable
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Rheem PROPH50 T0 RH120-M | Ruud PROUH50 T0 RU120-M | Weight |
|---|---|---|---|
| Uniform energy factorOfficial ENERGY STAR uniform energy factor. Higher means more hot water delivered per unit of electricity. Missing values take the category minimum. | 3 | 3 | 40% |
| First-hour ratingOfficial ENERGY STAR first-hour rating in gallons. 120-volt models often certify at a lower first-hour rating than comparable 240-volt units. Missing values take the category minimum. | 55 gallons | 55 gallons | 36% |
| Certified storage volumeOfficial ENERGY STAR certified storage volume in gallons, which can differ from the marketed tank size. A larger tank is not automatically the right unit for a small household. Missing values take the category minimum. | 46 gallons | 46 gallons | 24% |
| Uniform energy factor (ENERGY STAR UEF) | 3 | 3 | info |
| First-hour rating (ENERGY STAR) | 55 gallons | 55 gallons | info |
| Certified storage volume (ENERGY STAR) | 46 gallons | 46 gallons | info |
| Annual energy use (ENERGY STAR) | 1072 kWh/year | 1072 kWh/year | info |
| Annual energy use per gallon (computed) | 23.3 kWh/year per gallon, computed as certified annual energy use ÷ certified storage volume | 23.3 kWh/year per gallon, computed as certified annual energy use ÷ certified storage volume | info |
| Connected capable (ENERGY STAR) | Yes | Yes | info |
| Heat pump type (ENERGY STAR) | 120 Volt Integrated HPWH | 120 Volt Integrated HPWH | info |
| Input voltage (ENERGY STAR) | 120 V | 120 V | info |
| Maximum current (ENERGY STAR) | 4.5 A | 4.5 A | info |
| Lower compressor cut-off temperature (ENERGY STAR) | 210.0 °F | 210.0 °F | info |
| Draw pattern (ENERGY STAR) | Medium-Usage | Medium-Usage | info |
| Recovery efficiency (ENERGY STAR) | 367% | 367% | info |
| Sound pressure level (ENERGY STAR) | Not listed | Not listed | info |
| Tank height (ENERGY STAR) | 61.8 in | 61.8 in | info |
| Tank diameter (ENERGY STAR) | 22.3 in | 22.3 in | info |
| Refrigerant (ENERGY STAR) | R-134a | R-134a | info |
| Certified model number | PROPH50 T0 RH120-M | PROUH50 T0 RU120-M | info |
| Official brand name on the ENERGY STAR record | Rheem | Ruud | info |
| HeatPick score | 2.4/10 | 2.4/10 | 100% |
Where each one comes out ahead
Rheem PROPH50 T0 RH120-M
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Official certified ratings are published for every scored criterion
Watch out for
- No additional scored gaps in the official record we used
Ruud PROUH50 T0 RU120-M
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Official certified ratings are published for every scored criterion
Watch out for
- No additional scored gaps in the official record we used
Verdict
The official ENERGY STAR records list the same 46-gallon certified storage, 55-gallon first-hour rating and 3.00 UEF on the Rheem PROPH50 T0 RH120-M and the Ruud PROUH50 T0 RU120-M, and mark both as connected-capable. The certified model numbers differ. We do not infer any hardware difference beyond what those two records publish.
- Rheem PROPH50 T0 RH120-M: ENERGY STAR Product Finder: PROPH50 T0 RH120-M
- Rheem PROPH50 T0 RH120-M: ENERGY STAR certified water heaters dataset
- Ruud PROUH50 T0 RU120-M: ENERGY STAR Product Finder: PROUH50 T0 RU120-M
- Ruud PROUH50 T0 RU120-M: ENERGY STAR certified water heaters dataset