Both are 75-gallon heat pump water heaters. Efficiency is nearly identical. The REHP80BM saves $3/year to operate. All figures from published specs and EIA energy prices.
Performance
| Spec | RE2HP80-1NCTT Bradford White · Heat Pump | REHP80BM Rinnai · Heat Pump |
|---|---|---|
| UEF | 4identical | |
| Capacity | 75 galidentical | |
| First Hour Rating | 88 gal | 91 galDifference: 3 gal |
| kW Input | 4.60 kWDifference: 0.30 kW | 4.90 kW |
But does it fit? Sizing guide
Physical dimensions
| Dimension | RE2HP80-1NCTT | REHP80BM |
|---|---|---|
| Height | 51.10"Difference: 23.10" | 74.20" |
| Width | 22"Difference: 3.60" | 25.60" |
| Depth | — | 25.69" |
| Weight | 296 lbs | 270 lbsDifference: 26 lbs |
The REHP80BM is taller. Fit checked. Now the operating cost.
Operating cost
| Cost | RE2HP80-1NCTT | REHP80BM |
|---|---|---|
| Annual Operating Cost | $214/yr | $211/yrDifference: $3/yr |
| 10-Year Operating Cost | $2,140 | $2,110Difference: $30 |
| Annual Energy | 1,240 kWh | 1,225 kWhDifference: 15 kWh |
10-year modeled difference is $30. At this scale, local energy rates, usage patterns, and install costs matter more than the efficiency delta.
Costs vary by state. The RE2HP80-1NCTT ranges from $137/yr (ND) to $516/yr (HI). The REHP80BM ranges from $135/yr (ND) to $510/yr (HI).
$3/yr separates them. Install requirements determine the upfront gap. Installation accessories
Installation requirements
| Requirement | RE2HP80-1NCTT | REHP80BM |
|---|---|---|
| Voltage | 240Videntical | |
| Amperage | 19ADifference: 5A | 24A |
| Breaker | — | 30A |
Same electrical requirements. Swapping between these units should not require electrical changes.
Warranty
| Coverage | RE2HP80-1NCTT | REHP80BM |
|---|---|---|
| Tank | 10 yridentical | |
| Parts | — | 10 yr |
| Labor | — | 1 yr |
Features
| Feature | RE2HP80-1NCTT | REHP80BM |
|---|---|---|
| Wi-Fi / Smart | — | Yes |
| Refrigerant | R-134aidentical | |
Decision split
Pick this one if...
Bradford White RE2HP80-1NCTT
- Your ceiling or space is under 74.20"
Pick this one if...
Rinnai REHP80BM
- You want smart home / Wi-Fi control
Neither if...
- Your home only has 120V service and you cannot upgrade the panel
- Your install space is under 700 sq ft of open air
Common accessories for this type of installation.
Common install considerations for heat pump units
What is required depends on your existing installation, local code, and installer preference.
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Related
Sources. ENERGY STAR, manufacturer spec sheets, EIA average energy prices.Methodology