Rinnai REHP80BM
Rinnai REHP80BM is in the DOE listing as of Oct 26, 2026 and is in the ENERGY STAR list as of Oct 26, 2026.
It has a labeled size of 80 gallons, a certified storage volume of 75 gallons, a certified UEF of 4.00, and a certified first-hour rating of 91 gallons of hot water.
Its advertised first-hour rating of 80 gal from SupplyHouse differs from the certified 91 gal (Archived copy, May 14, 2025).
- Heat pump water heater
- 3 listed models
Certified figures
- Storage volume
- 75gallons
- UEF
- 4.00Uniform energy factor
- First-hour rating
- 91gallonsHot water in the first hour
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Change your hourAdvertised and certified figures
| Figure | Advertised | Certified | Advertiser | Read |
|---|---|---|---|---|
| Size | 80 gal, nominal size | 75 gal storage volume | SupplyHouse | Archived copy, May 14, 2025 |
| First-hour rating | 80 gal | 91 gal | SupplyHouse | Archived copy, May 14, 2025 |
Certified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| REHP80 | 75 | 4.00 | 91 | 454% | High |
| REHP80BM | 75 | 4.00 | 91 | 454% | High |
| REHP80C | 75 | 4.00 | 91 | 454% | High |
UEF is the uniform energy factor. A dash means the model has no such figure.
ENERGY STAR certified models
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency |
|---|---|---|---|---|
| REHP80 | 75 | 4.00 | 91 | 454% |
| REHP80BM | 75 | 4.00 | 91 | 454% |
| REHP80C | 75 | 4.00 | 91 | 454% |
It holds 75 gallons in the test, 5 gallons less than its 80-gallon sold size. Over one hour from a full tank, it gave 91 gallons in the test (its first-hour rating). Reheating lets it give 16 gallons beyond the 75 gallons in its tank. In the first hour, 43 of the 481 heat pump models give more hot water. Among heat pump models, the median first-hour rating is 72 gallons.
It has 3 model numbers that are ENERGY STAR certified. For each unit of energy it uses, 4.00 units end up in the hot water (its UEF). A UEF above 1 is possible because it moves heat from the air into the water. The daily hot water use in the test, called its draw pattern, was high. Its UEF is lower than that of 70 of the 237 heat pump models with its draw pattern. For its type and draw pattern, the median UEF is 3.88. Its recovery efficiency is 454%, because it takes heat from the air as it reheats water.
Its 3 model numbers are REHP80, REHP80BM, and REHP80C.
It may qualify for 20 rebate programs. It may qualify for 7 more if it meets terms its figures do not show.
Rebates
Programs change their terms. Check the program's own page before you buy.
- Every Rinnai basic model
- Every 80-gallon heat pump water heater
- Every heat pump water heater
- The most-searched heat pump models side by side
Not covered
- Changes to an advertised figure after the date beside it.