Water Heaters with UEF 4.0 or Higher

The efficiency ceiling of the market: heat pump water heaters with a Uniform Energy Factor of 4.0+, delivering more than four units of hot-water energy per unit of electricity consumed.

87 certified models in this category.

Model Uniform Energy Factor (UEF)FuelFirst-hour ratingMax flow rateRated storage volumeSmart / connected capable
1HVAC Heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
ACIQ Heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
Alsetria heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
AMERICAN STANDARD WATER HEATERS Heat Pump Water Heater 80-Gallon 4.01Electric87 gal—73 galYes
Arctic-HP-Hot Water-KA06-80 80-Gallon 4.14Electric81 gal—71 galNo
Ariston Heat Pump Water Heater 65-Gallon (ARIHPWH-65-T) 4.05Electric77 gal—61 galYes
Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80-T) 4.1Electric88 gal—74 galYes
Ariston Heat Pump Water Heater 80-Gallon (ARIHPWH-80) 4.01Electric87 gal—73 galYes
Bosch Water heater 80-Gallon 4Electric91 gal—74 galYes
Bradford White RE2HP65-1NCTT 65-Gallon 4.2Electric82 gal—65 galNo
Bradford White RE2HP80-1NCTT 80-Gallon 4Electric88 gal—75 galNo
Custom Comfort heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
DIYCOOL Heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
ECO-AIR heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
Eco-Logical heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
Eco-Logical OMNI-50HP2-1A 50-Gallon 4.23Electric57 gal—46 galYes
Eco-Logical OMNI-80HP2-1A 80-Gallon 4.11Electric82 gal—74 galYes
Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-30) 4.05Electric75 gal—59 galNo
Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-SO) 4.05Electric75 gal—59 galNo
Friedrich Heat Pump 80-Gallon (PROH80 T2 FD400-30) 4.07Electric87 gal—72 galNo
Friedrich Heat Pump 80-Gallon (PROH80 T2 FD400-SO) 4.07Electric87 gal—72 galNo
GE Profile Heat Pump 40-Gallon (PH40S10BPY01) 4.2Electric64 gal—40 galYes
GE Profile Heat Pump 50-Gallon (PH50S10BNY01) 4.5Electric75 gal—50 galYes
GE Profile Heat Pump 50-Gallon (PH50S10BPY01) 4.3Electric77 gal—50 galYes
GE Profile Heat Pump 65-Gallon (PH65S10BNY01) 4.3Electric86 gal—65 galYes
GE Profile Heat Pump 65-Gallon (PH65S10BPY01) 4.3Electric87 gal—65 galYes
GE Profile Heat Pump 80-Gallon (PH80S10BNY01) 4.5Electric101 gal—80 galYes
GE Profile Heat Pump 80-Gallon (PH80S10BPY01) 4.4Electric101 gal—80 galYes
GREE GRS-3.0Pd/TD50GANhA-D 50-Gallon 4.02Electric80 gal—55 galNo
GREE GRS-3.0Pd/TD70GANhA-D 65-Gallon 4.03Electric100 gal—68 galNo
Gridless heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
JETGLAS RE2HP65-1NCTT 65-Gallon 4.2Electric82 gal—65 galNo
JETGLAS RE2HP80-1NCTT 80-Gallon 4Electric88 gal—75 galNo
Kepler heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
Lennox Heat Pump Water Heater 65-Gallon 4.05Electric77 gal—61 galYes
Lennox Heat Pump Water Heater 80-Gallon 4.1Electric88 gal—74 galYes
LG APHWC502D 50-Gallon 4.2Electric81 gal—53 galNo
LG APHWC502L 50-Gallon 4.2Electric81 gal—53 galNo
LG APHWC502M 50-Gallon 4.2Electric81 gal—53 galNo
LG APHWC802D 80-Gallon 4.1Electric91 gal—72 galNo
LG APHWC802L 80-Gallon 4.1Electric91 gal—72 galNo
LG APHWC802M 80-Gallon 4.1Electric91 gal—72 galNo
Midea water heater 80-Gallon (CAN3-RSJ-15/300RDVN3-L3) 4Electric91 gal—74 galYes
Midea Water Heater 80-Gallon (MAHW-80VN3A) 4Electric91 gal—74 galYes
Midea Water Heater 80-Gallon (MAWH80D2AKH) 4Electric91 gal—74 galYes
Midea water heater 80-Gallon (MCHW-80VN3A) 4Electric91 gal—74 galYes
Midea Water Heater 80-Gallon (US3-RSJ-15/300RDVN3-L3) 4Electric91 gal—74 galYes
Navien NWP500 65-Gallon 4.03Electric80 gal—61 galNo
Navien NWP500 80-Gallon 4.05Electric85 gal—74 galNo
NOVAIR heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
PHNIX KA06-80 80-Gallon 4.14Electric81 gal—71 galNo
PolarWave Heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
Rheem Heat Pump 65-Gallon (PROPH65 T2 RH375-30) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (PROPH65 T2 RH375-SO) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (PROPH65 T2 RH400-30) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (PROPH65 T2 RH400-SO) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (XE65T10H45U0) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (XE65T10H45U1) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (XE65T10HS45U0) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 65-Gallon (XE65T10HS45U1) 4.05Electric75 gal—59 galNo
Rheem Heat Pump 80-Gallon (PROPH80 T2 RH375-30) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (PROPH80 T2 RH400-30) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (PROPH80 T2 RH400-SO) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (XE80T10H45U0) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (XE80T10H45U1) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (XE80T10HS45U0) 4.07Electric87 gal—72 galNo
Rheem Heat Pump 80-Gallon (XE80T10HS45U1) 4.07Electric87 gal—72 galNo
Richmond Heat Pump 65-Gallon (10E65-HP530) 4.05Electric75 gal—59 galNo
Richmond Heat Pump 65-Gallon (10E65-HP5S30) 4.05Electric75 gal—59 galNo
Richmond Heat Pump 65-Gallon (10E65-HP5U30) 4.05Electric75 gal—59 galNo
Richmond Heat Pump 65-Gallon (10E65-HP5US30) 4.05Electric75 gal—59 galNo
Richmond Heat Pump 80-Gallon (10E80-HP530) 4.07Electric87 gal—72 galNo
Richmond Heat Pump 80-Gallon (10E80-HP5U30) 4.07Electric87 gal—72 galNo
Richmond Heat Pump 80-Gallon (10E80-HP5US30) 4.07Electric87 gal—72 galNo
Rinnai REHP80 80-Gallon 4Electric91 gal—75 galNo
Rinnai REHP80 80-Gallon (REHP80C) 4Electric91 gal—75 galNo
Rinnai REHP80BM 80-Gallon 4Electric91 gal—75 galNo
Ruud Heat Pump 65-Gallon (PROUH65 T2 RU375-30) 4.05Electric75 gal—59 galNo
Ruud Heat Pump 65-Gallon (PROUH65 T2 RU375-SO) 4.05Electric75 gal—59 galNo
Ruud Heat Pump 65-Gallon (PROUH65 T2 RU400-30) 4.05Electric75 gal—59 galNo
Ruud Heat Pump 65-Gallon (PROUH65 T2 RU400-SO) 4.05Electric75 gal—59 galNo
Ruud Heat Pump 80-Gallon (PROUH80 T2 RU375-30) 4.07Electric87 gal—72 galNo
Ruud Heat Pump 80-Gallon (PROUH80 T2 RU375-SO) 4.07Electric87 gal—72 galNo
Ruud Heat Pump 80-Gallon (PROUH80 T2 RU400-30) 4.07Electric87 gal—72 galNo
Ruud Heat Pump 80-Gallon (PROUH80 T2 RU400-SO) 4.07Electric87 gal—72 galNo
STEALTH Heat pump water heater 80-Gallon 4Electric91 gal—74 galYes
stream33 heat pump water heater 80-Gallon 4Electric91 gal—74 galYes