Home / Types / Heat pump Heat-pump water heaters The heat-pump group holds 609 certified model numbers in 101 rating sets, from 49 brands. Eco-Logical OMNI-50HP2-1A has the highest UEF of all 38 medium-draw heat-pump sets on the list, 4.23. GE Profile PH50S10BNY01 and PH80S10BNY01 share the highest UEF of all 58 high-draw heat-pump sets on the list, 4.50. Of the group’s model numbers, 60% were certified in 2026, the largest share of the four heater types on this site. The largest rating set here, Giant GTHPCO-45 1+GTXST-50S 1, covers 25 model numbers sold as A. O. Smith, American, GSW, Giant, John Wood, Lochinvar, Reliance and State.
Certified models as of October 27, 2026 · Open this type in the Heater finder
UEF of every heat-pump rating set, one row per draw pattern
UEF of every heat-pump rating set by draw pattern High draw 58 sets Smart Solar SSG2-ES 120: 2.85 A. O. Smith HPTV-80 2: 3.00 A. O. Smith HPTV-66 2: 3.20 Vaughn Thermal ME120HPT: 3.38 GE Profile PF65S10FPY01: 3.40 A. O. Smith FPTU-66 1: 3.42 A. O. Smith FPTU-80 1: 3.45 A. O. Smith HP1080H45DV 1: 3.45 A. O. Smith HPTU-66CTA 1: 3.45 Rheem PROPH80 T0 RH120-M: 3.46 Vaughn Thermal ME80HPT: 3.48 Friedrich PROH65 T2 FD310BM: 3.50 Friedrich PROH80 T2 FD310BM: 3.50 GE Profile PF80S10FPY01: 3.50 Vaughn Thermal MP120FHPT: 3.50 Vaughn Thermal MP80FHPT: 3.50 Carnot Labs N51: 3.53 Bradford White RE2H80T-: 3.59 Bradford White RE2H65T-: 3.64 A. O. Smith HPACO-45 1+AXST-66 1: 3.70 A. O. Smith HPS10-66H45DV 2: 3.70 SanCO2 GS5-45HPC HP + ECO-119GLBK: 3.72 Reclaim Energy MP120F-RC: 3.75 A. O. Smith HPACO-45 1+AXST-80 1: 3.80 Reclaim Energy MP80F-RC: 3.80 SanCO2 GS5-45HPC HP + ECO-83SSAQB: 3.80 A. O. Smith CAHP-66 2: 3.84 American Standard ASHPWH-65: 3.85 A. O. Smith CAHP-80 2: 3.88 A. O. Smith HPS10-80H45DV 2: 3.88 LG APHWC801D: 3.90 Midea CAN3-RSJ-15/250RDVN3-L3: 3.90 LG APHWC501D: 3.93 Bradford White RE2HP80-1NCTT: 4.00 Midea CAN3-RSJ-15/250RDVN3-L4: 4.00 Midea CAN3-RSJ-15/300RDVN3-L3: 4.00 Midea CAN3-RSJ-15/300RDVN3-L4: 4.00 Rinnai REHP80: 4.00 American Standard ASHPWH-80: 4.01 Gree GRS-3.0Pd/TD50GANhA-D: 4.02 Gree GRS-3.0Pd/TD70GANhA-D: 4.03 Navien NWP500S065AUMB: 4.03 Ariston ARIHPWH-65-T: 4.05 Navien NWP500S080AUMB: 4.05 Rheem PROPH65 T2 RH375-30: 4.05 Rheem PROPH80 T2 RH375-30: 4.07 Ariston ARIHPWH-80-T: 4.10 LG APHWC802D: 4.10 Eco-Logical OMNI-80HP2-1A: 4.11 Arctic Arctic-HP-Hot Water-KA06-80: 4.14 Bradford White RE2HP65-1NCTT: 4.20 LG APHWC502D: 4.20 GE Profile PH50S10BPY01: 4.30 GE Profile PH65S10BNY01: 4.30 GE Profile PH65S10BPY01: 4.30 GE Profile PH80S10BPY01: 4.40 GE Profile PH50S10BNY01: 4.50 GE Profile PH80S10BNY01: 4.50 Medium draw 38 sets Smart Solar SSG2-ES 80: 2.71 A. O. Smith HPTV-50 2: 3.00 Rheem PROPH50 T0 RH120-M: 3.00 Rheem PROPH50 T0 RH120: 3.00 Rheem PROPH65 T0 RH120-M: 3.12 GE Profile PF50S10FPY01: 3.20 Vaughn Thermal MP55FHPT: 3.30 Vaughn Thermal ME65HPT: 3.34 A. O. Smith FPTU-50 1: 3.35 Bradford White RE2H50S-: 3.44 A. O. Smith HP1050H45DV 1: 3.45 Vaughn Thermal ME50HPT: 3.46 Friedrich PROH40 T2 FD310BM: 3.50 Friedrich PROH50 T2 FD310BM: 3.50 A. O. Smith HPACO-45 1+AXST-50T 1: 3.52 Giant GTHPCO-45 1+GTXST-50S 1: 3.52 A. O. Smith HPACO-45 1+AXST-50LBTTP 1: 3.55 Ariston ARIHPWH-40-T: 3.55 Rheem PROPH65 T2 RH375-15: 3.55 American Standard ASHPWH-40: 3.58 A. O. Smith CAHP-40 2: 3.60 A. O. Smith CAHP-50 2: 3.68 Rheem PROPH80 T2 RH375-15: 3.70 SanCO2 GS5-45HPC HP + ECO-43SSAQB: 3.70 American Standard ASHPWH-50: 3.75 Midea CAN3-RSJ-15/190RDVN3-L3: 3.75 Midea CAN3-RSJ-15/190RDVN3-L4: 3.75 Rheem PROPH50 T2 RH375-15: 3.75 Rinnai REHP50: 3.75 A. O. Smith HPS10-50H45DV 2: 3.80 Ariston ARIHPWH-50-T: 3.83 Rheem PROPH40 T2 RH375-30: 3.83 Navien NWP500S050AUMB: 3.85 Arctic Arctic-HP-Hot Water-KA06-50: 3.88 Rheem PROPH50 T2 RH375-30: 3.88 Bradford White RE2HP50-1NCTT: 3.89 GE Profile PH40S10BPY01: 4.20 Eco-Logical OMNI-50HP2-1A: 4.23 Low draw 5 sets Smart Solar SSG2-ES 65: 2.52 Rheem PROPH40 T0 RH120-M: 2.80 GE Profile PF40S10FPY01: 3.10 Eco-Logical OMNI-50HP1-1A: 3.30 Rheem PROPH40 T2 RH375-15: 3.45 2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6
UEF by draw pattern High draw58 sets Smart Solar SSG2-ES 120: 2.85 A. O. Smith HPTV-80 2: 3.00 A. O. Smith HPTV-66 2: 3.20 Vaughn Thermal ME120HPT: 3.38 GE Profile PF65S10FPY01: 3.40 A. O. Smith FPTU-66 1: 3.42 A. O. Smith FPTU-80 1: 3.45 A. O. Smith HP1080H45DV 1: 3.45 A. O. Smith HPTU-66CTA 1: 3.45 Rheem PROPH80 T0 RH120-M: 3.46 Vaughn Thermal ME80HPT: 3.48 Friedrich PROH65 T2 FD310BM: 3.50 Friedrich PROH80 T2 FD310BM: 3.50 GE Profile PF80S10FPY01: 3.50 Vaughn Thermal MP120FHPT: 3.50 Vaughn Thermal MP80FHPT: 3.50 Carnot Labs N51: 3.53 Bradford White RE2H80T-: 3.59 Bradford White RE2H65T-: 3.64 A. O. Smith HPACO-45 1+AXST-66 1: 3.70 A. O. Smith HPS10-66H45DV 2: 3.70 SanCO2 GS5-45HPC HP + ECO-119GLBK: 3.72 Reclaim Energy MP120F-RC: 3.75 A. O. Smith HPACO-45 1+AXST-80 1: 3.80 Reclaim Energy MP80F-RC: 3.80 SanCO2 GS5-45HPC HP + ECO-83SSAQB: 3.80 A. O. Smith CAHP-66 2: 3.84 American Standard ASHPWH-65: 3.85 A. O. Smith CAHP-80 2: 3.88 A. O. Smith HPS10-80H45DV 2: 3.88 LG APHWC801D: 3.90 Midea CAN3-RSJ-15/250RDVN3-L3: 3.90 LG APHWC501D: 3.93 Bradford White RE2HP80-1NCTT: 4.00 Midea CAN3-RSJ-15/250RDVN3-L4: 4.00 Midea CAN3-RSJ-15/300RDVN3-L3: 4.00 Midea CAN3-RSJ-15/300RDVN3-L4: 4.00 Rinnai REHP80: 4.00 American Standard ASHPWH-80: 4.01 Gree GRS-3.0Pd/TD50GANhA-D: 4.02 Gree GRS-3.0Pd/TD70GANhA-D: 4.03 Navien NWP500S065AUMB: 4.03 Ariston ARIHPWH-65-T: 4.05 Navien NWP500S080AUMB: 4.05 Rheem PROPH65 T2 RH375-30: 4.05 Rheem PROPH80 T2 RH375-30: 4.07 Ariston ARIHPWH-80-T: 4.10 LG APHWC802D: 4.10 Eco-Logical OMNI-80HP2-1A: 4.11 Arctic Arctic-HP-Hot Water-KA06-80: 4.14 Bradford White RE2HP65-1NCTT: 4.20 LG APHWC502D: 4.20 GE Profile PH50S10BPY01: 4.30 GE Profile PH65S10BNY01: 4.30 GE Profile PH65S10BPY01: 4.30 GE Profile PH80S10BPY01: 4.40 GE Profile PH50S10BNY01: 4.50 GE Profile PH80S10BNY01: 4.50 Medium draw38 sets Smart Solar SSG2-ES 80: 2.71 A. O. Smith HPTV-50 2: 3.00 Rheem PROPH50 T0 RH120-M: 3.00 Rheem PROPH50 T0 RH120: 3.00 Rheem PROPH65 T0 RH120-M: 3.12 GE Profile PF50S10FPY01: 3.20 Vaughn Thermal MP55FHPT: 3.30 Vaughn Thermal ME65HPT: 3.34 A. O. Smith FPTU-50 1: 3.35 Bradford White RE2H50S-: 3.44 A. O. Smith HP1050H45DV 1: 3.45 Vaughn Thermal ME50HPT: 3.46 Friedrich PROH40 T2 FD310BM: 3.50 Friedrich PROH50 T2 FD310BM: 3.50 A. O. Smith HPACO-45 1+AXST-50T 1: 3.52 Giant GTHPCO-45 1+GTXST-50S 1: 3.52 A. O. Smith HPACO-45 1+AXST-50LBTTP 1: 3.55 Ariston ARIHPWH-40-T: 3.55 Rheem PROPH65 T2 RH375-15: 3.55 American Standard ASHPWH-40: 3.58 A. O. Smith CAHP-40 2: 3.60 A. O. Smith CAHP-50 2: 3.68 Rheem PROPH80 T2 RH375-15: 3.70 SanCO2 GS5-45HPC HP + ECO-43SSAQB: 3.70 American Standard ASHPWH-50: 3.75 Midea CAN3-RSJ-15/190RDVN3-L3: 3.75 Midea CAN3-RSJ-15/190RDVN3-L4: 3.75 Rheem PROPH50 T2 RH375-15: 3.75 Rinnai REHP50: 3.75 A. O. Smith HPS10-50H45DV 2: 3.80 Ariston ARIHPWH-50-T: 3.83 Rheem PROPH40 T2 RH375-30: 3.83 Navien NWP500S050AUMB: 3.85 Arctic Arctic-HP-Hot Water-KA06-50: 3.88 Rheem PROPH50 T2 RH375-30: 3.88 Bradford White RE2HP50-1NCTT: 3.89 GE Profile PH40S10BPY01: 4.20 Eco-Logical OMNI-50HP2-1A: 4.23 Low draw5 sets Smart Solar SSG2-ES 65: 2.52 Rheem PROPH40 T0 RH120-M: 2.80 GE Profile PF40S10FPY01: 3.10 Eco-Logical OMNI-50HP1-1A: 3.30 Rheem PROPH40 T2 RH375-15: 3.45 2.4 2.8 3.2 3.6 4.0 4.4
One dot per rating set, stacked where values repeat. Compare UEFs within a row only. Six ways to cut the list
Subtype groups and rated-volume groups overlap: every set sits in one of each. Medians count each rating set once.
Group Model numbers Rating sets UEF at high draw First hour per rated gal, median Plug-in 120 V by subtype 68 12 3.00–3.50 1.16 Split system by subtype 100 16 2.85–4.11 1.23 240 V integrated by subtype; its sets are listed in the volume groups 441 73 3.38–4.50 1.27 Under 50 gal by rated volume 265 36 3.53 (1 set) 1.47 50 to 69 gal by rated volume 164 30 3.20–4.50 1.26 70 gal and up by rated volume 180 35 2.85–4.50 1.17
Most hot water in the first hour SanCO2 GS5-45HPC HP + ECO-119GLBK split system, 119 gal rated 134 gal Reclaim Energy MP120F-RC split system, 119 gal rated 121 gal SanCO2 GS5-45HPC HP + ECO-83SSAQB split system, 83 gal rated 121 gal Vaughn Thermal MP120FHPT 240 V integrated, 119 gal rated 115 gal Vaughn Thermal ME120HPT 240 V integrated, 109 gal rated 105 gal Lowest rated electricity use, high draw kWh per year at the DOE test conditions
Friedrich PROH65 T2 FD310BM 240 V integrated, UEF 3.50 900 GE Profile PH50S10BNY01 240 V integrated, UEF 4.50 1,102 GE Profile PH80S10BNY01 240 V integrated, UEF 4.50 1,102 GE Profile PH80S10BPY01 240 V integrated, UEF 4.40 1,127 GE Profile PH50S10BPY01 240 V integrated, UEF 4.30 1,154
Model numbers in that set, by brand
Midea 5 Senville 2 1HVAC 1 ACIQ 1 Alsetria 1 Bosch 1 Custom Comfort 1 DIYCOOL 1 Eco-Air 1 Eco-Logical 1 Gridless 1 Kepler 1 Novair 1 Perfect Aire 1 PolarWave 1 Stealth 1 stream33 1 Refrigerants
452 94 31 30 2 Counted by model number, 609 with a listed refrigerant.