Best High First-Hour 240-Volt Heat Pump Water Heaters (2026)
240-volt integrated heat pump water heaters whose official ENERGY STAR records list a first-hour rating of at least 90 gallons, ranked on the same published-spec score as the main comparison.
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- 1GPHighest published-spec match in this shortlist
GE Profile PH80S10BNY01
Score is within our 240-volt heat pump water heaters ranking9.9/10UEF 4.5; first-hour rating 101 gallons; 80 gallons certified storage; connected-capable.
What we like
- Highest official uniform energy factor in this comparison (4.5)
- Highest official first-hour rating in this comparison (101 gallons)
- ENERGY STAR lists this model as connected-capable
Watch out for
- No additional scored gaps in the official record we used
- 2AOClosely related alternative
A. O. Smith CAHP-80
Score is within our 240-volt heat pump water heaters ranking7.9/10UEF 3.88; first-hour rating 95 gallons; 81 gallons certified storage; connected-capable.
What we like
- High official first-hour rating (95 gallons)
- Largest official certified storage volume in this comparison (81 gallons)
- ENERGY STAR lists this model as connected-capable
Watch out for
- No additional scored gaps in the official record we used
- 3RAnother official-spec alternative
Rinnai REHP80W
Score is within our 240-volt heat pump water heaters ranking7.7/10UEF 4; first-hour rating 91 gallons; 75 gallons certified storage; connected-capable.
What we like
- Official uniform energy factor of 4
- High official first-hour rating (91 gallons)
- ENERGY STAR lists this model as connected-capable
Watch out for
- No additional scored gaps in the official record we used