Home / Model lines / A. O. Smith FPTU-xx 1 Heat pump · 240 V integrated
A. O. Smith FPTU-xx 1 The A. O. Smith FPTU-xx 1 line holds three certified rating sets of 240 V integrated heat-pump water heaters, 15 model numbers sold under five brand names, listed by A.O. Smith. Rated volume runs from 46 to 82 gal, and the first-hour rating runs from 66 to 84 gal. UEFs compare only within a draw pattern; the two high-draw sets rate UEF from 3.42 to 3.45. A. O. Smith FPTU-80 1, the set with the most model numbers, rates 0.43 below the median UEF of the 58 high-draw heat-pump sets (3.88).
Certified as of October 27, 2026 · EPA ENERGY STAR data, public domain · Compare in the Heater finder
Size by size Certified values of A. O. Smith FPTU-xx 1 Rating set Rated volume, gal First hour, gal Per rated gal UEF UEF rank kWh/yr A. O. Smith FPTU-50 1 5 model numbers 46 66 1.43 3.35 medium ninth lowest of 38 970 A. O. Smith FPTU-66 1 5 model numbers 67 79 1.18 3.42 high sixth lowest of 58 1,391 A. O. Smith FPTU-80 1 5 model numbers 82 84 1.02 3.45 high seventh lowest of 58, three tied 1,396
UEF ranks compare sets of the same draw pattern only.
A. O. Smith FPTU-xx 1: first-hour rating against rated volume
First-hour rating, gal
A. O. Smith FPTU-xx 1: first-hour rating against rated volume 40 60 80 100 120 140 30 40 50 60 70 80 90 100 110 120 Rated volume, gal 1× 1.5× A. O. Smith CAHP-40 2 A. O. Smith CAHP-50 2 A. O. Smith CAHP-66 2 A. O. Smith CAHP-80 2 A. O. Smith HP1050H45DV 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPACO-45 1+AXST-50LBTTP 1 A. O. Smith HPACO-45 1+AXST-50T 1 A. O. Smith HPACO-45 1+AXST-66 1 A. O. Smith HPACO-45 1+AXST-80 1 A. O. Smith HPS10-50H45DV 2 A. O. Smith HPS10-66H45DV 2 A. O. Smith HPS10-80H45DV 2 A. O. Smith HPTU-66CTA 1 A. O. Smith HPTV-50 2 A. O. Smith HPTV-66 2 A. O. Smith HPTV-80 2 American Standard ASHPWH-40 American Standard ASHPWH-50 American Standard ASHPWH-65 American Standard ASHPWH-80 Arctic Arctic-HP-Hot Water-KA06-50 Arctic Arctic-HP-Hot Water-KA06-80 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Ariston ARIHPWH-65-T Ariston ARIHPWH-80-T Bradford White RE2H50S- Bradford White RE2H65T- Bradford White RE2H80T- Bradford White RE2HP50-1NCTT Bradford White RE2HP65-1NCTT Bradford White RE2HP80-1NCTT Carnot Labs N51 Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A Eco-Logical OMNI-80HP2-1A Friedrich PROH40 T2 FD310BM Friedrich PROH50 T2 FD310BM Friedrich PROH65 T2 FD310BM Friedrich PROH80 T2 FD310BM GE Profile PF40S10FPY01 GE Profile PF50S10FPY01 GE Profile PF65S10FPY01 GE Profile PF80S10FPY01 GE Profile PH40S10BPY01 GE Profile PH50S10BNY01 GE Profile PH50S10BPY01 GE Profile PH65S10BNY01 GE Profile PH65S10BPY01 GE Profile PH80S10BNY01 GE Profile PH80S10BPY01 Giant GTHPCO-45 1+GTXST-50S 1 Gree GRS-3.0Pd/TD50GANhA-D Gree GRS-3.0Pd/TD70GANhA-D LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D Midea CAN3-RSJ-15/190RDVN3-L3 Midea CAN3-RSJ-15/190RDVN3-L4 Midea CAN3-RSJ-15/250RDVN3-L3 Midea CAN3-RSJ-15/250RDVN3-L4 Midea CAN3-RSJ-15/300RDVN3-L3 Midea CAN3-RSJ-15/300RDVN3-L4 Navien NWP500S050AUMB Navien NWP500S065AUMB Navien NWP500S080AUMB Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC Rheem PROPH40 T0 RH120-M Rheem PROPH40 T2 RH375-15 Rheem PROPH40 T2 RH375-30 Rheem PROPH50 T0 RH120 Rheem PROPH50 T0 RH120-M Rheem PROPH50 T2 RH375-15 Rheem PROPH50 T2 RH375-30 Rheem PROPH65 T0 RH120-M Rheem PROPH65 T2 RH375-15 Rheem PROPH65 T2 RH375-30 Rheem PROPH80 T0 RH120-M Rheem PROPH80 T2 RH375-15 Rheem PROPH80 T2 RH375-30 Rinnai REHP50 Rinnai REHP80 SanCO2 GS5-45HPC HP + ECO-119GLBK SanCO2 GS5-45HPC HP + ECO-43SSAQB SanCO2 GS5-45HPC HP + ECO-83SSAQB Smart Solar SSG2-ES 120 Smart Solar SSG2-ES 65 Smart Solar SSG2-ES 80 Vaughn Thermal ME120HPT Vaughn Thermal ME50HPT Vaughn Thermal ME65HPT Vaughn Thermal ME80HPT Vaughn Thermal MP120FHPT Vaughn Thermal MP55FHPT Vaughn Thermal MP80FHPT A. O. Smith FPTU-50 1 A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1
A. O. Smith FPTU-xx 1: first-hour rating against rated volume 40 60 80 100 120 140 30 60 90 120 Rated volume, gal A. O. Smith CAHP-40 2 A. O. Smith CAHP-50 2 A. O. Smith CAHP-66 2 A. O. Smith CAHP-80 2 A. O. Smith HP1050H45DV 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPACO-45 1+AXST-50LBTTP 1 A. O. Smith HPACO-45 1+AXST-50T 1 A. O. Smith HPACO-45 1+AXST-66 1 A. O. Smith HPACO-45 1+AXST-80 1 A. O. Smith HPS10-50H45DV 2 A. O. Smith HPS10-66H45DV 2 A. O. Smith HPS10-80H45DV 2 A. O. Smith HPTU-66CTA 1 A. O. Smith HPTV-50 2 A. O. Smith HPTV-66 2 A. O. Smith HPTV-80 2 American Standard ASHPWH-40 American Standard ASHPWH-50 American Standard ASHPWH-65 American Standard ASHPWH-80 Arctic Arctic-HP-Hot Water-KA06-50 Arctic Arctic-HP-Hot Water-KA06-80 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Ariston ARIHPWH-65-T Ariston ARIHPWH-80-T Bradford White RE2H50S- Bradford White RE2H65T- Bradford White RE2H80T- Bradford White RE2HP50-1NCTT Bradford White RE2HP65-1NCTT Bradford White RE2HP80-1NCTT Carnot Labs N51 Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A Eco-Logical OMNI-80HP2-1A Friedrich PROH40 T2 FD310BM Friedrich PROH50 T2 FD310BM Friedrich PROH65 T2 FD310BM Friedrich PROH80 T2 FD310BM GE Profile PF40S10FPY01 GE Profile PF50S10FPY01 GE Profile PF65S10FPY01 GE Profile PF80S10FPY01 GE Profile PH40S10BPY01 GE Profile PH50S10BNY01 GE Profile PH50S10BPY01 GE Profile PH65S10BNY01 GE Profile PH65S10BPY01 GE Profile PH80S10BNY01 GE Profile PH80S10BPY01 Giant GTHPCO-45 1+GTXST-50S 1 Gree GRS-3.0Pd/TD50GANhA-D Gree GRS-3.0Pd/TD70GANhA-D LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D Midea CAN3-RSJ-15/190RDVN3-L3 Midea CAN3-RSJ-15/190RDVN3-L4 Midea CAN3-RSJ-15/250RDVN3-L3 Midea CAN3-RSJ-15/250RDVN3-L4 Midea CAN3-RSJ-15/300RDVN3-L3 Midea CAN3-RSJ-15/300RDVN3-L4 Navien NWP500S050AUMB Navien NWP500S065AUMB Navien NWP500S080AUMB Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC Rheem PROPH40 T0 RH120-M Rheem PROPH40 T2 RH375-15 Rheem PROPH40 T2 RH375-30 Rheem PROPH50 T0 RH120 Rheem PROPH50 T0 RH120-M Rheem PROPH50 T2 RH375-15 Rheem PROPH50 T2 RH375-30 Rheem PROPH65 T0 RH120-M Rheem PROPH65 T2 RH375-15 Rheem PROPH65 T2 RH375-30 Rheem PROPH80 T0 RH120-M Rheem PROPH80 T2 RH375-15 Rheem PROPH80 T2 RH375-30 Rinnai REHP50 Rinnai REHP80 SanCO2 GS5-45HPC HP + ECO-119GLBK SanCO2 GS5-45HPC HP + ECO-43SSAQB SanCO2 GS5-45HPC HP + ECO-83SSAQB Smart Solar SSG2-ES 120 Smart Solar SSG2-ES 65 Smart Solar SSG2-ES 80 Vaughn Thermal ME120HPT Vaughn Thermal ME50HPT Vaughn Thermal ME65HPT Vaughn Thermal ME80HPT Vaughn Thermal MP120FHPT Vaughn Thermal MP55FHPT Vaughn Thermal MP80FHPT A. O. Smith FPTU-50 1 A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1
Filled: the three sets of A. O. Smith FPTU-xx 1; open circles: the other 98 heat-pump sets. Dashed lines mark 1× and 1.5× the rated volume; the highest ratio in the line is 1.43×, on A. O. Smith FPTU-50 1. Across the sizes From A. O. Smith FPTU-50 1 to A. O. Smith FPTU-80 1, rated volume grows by 36 gal and the first-hour rating by 18 gal: 0.50 gal of first-hour output for each added rated gallon.
The sizes test at different draw patterns (two high and one medium), so UEF and annual energy compare only between sizes that share a pattern (why ).
Strongest placings, size by size Measure Value Median of the group Placing Compared with Compressor cut-offA. O. Smith FPTU-50 1 45 °F 36.3 °F highest of 90, six tied 90 heat-pump sets that report one UEFA. O. Smith FPTU-50 1 3.35 3.56 ninth lowest of 38 38 medium-draw heat-pump sets Compressor cut-offA. O. Smith FPTU-66 1 45 °F 36.3 °F highest of 90, six tied 90 heat-pump sets that report one UEFA. O. Smith FPTU-66 1 3.42 3.88 sixth lowest of 58 58 high-draw heat-pump sets Compressor cut-offA. O. Smith FPTU-80 1 45 °F 36.3 °F highest of 90, six tied 90 heat-pump sets that report one UEFA. O. Smith FPTU-80 1 3.45 3.88 seventh lowest of 58, three tied 58 high-draw heat-pump sets
Model numbers The line covers 15 model numbers under five brand names, all certified 2023-02-23. An asterisk stands for a variant character in the model number.
Model number Brand Rating set Height × diameter Electrical Refrigerant Connected Certified FPTU-50 1** A. O. Smith FPTU-50 1 63 × 15 in 240 V / 22 A R-134a no 2023-02-23 HPHE6250H045DV 1** American FPTU-50 1 63 × 15 in 240 V / 22 A R-134a no 2023-02-23 6-50-DHPHT 1** Reliance FPTU-50 1 63 × 15 in 240 V / 22 A R-134a no 2023-02-23 HP6-50-DHPT 1** State FPTU-50 1 63 × 15 in 240 V / 22 A R-134a no 2023-02-23 HPHE2F50HD045VU 1** U.S. Craftmaster FPTU-50 1 63 × 15 in 240 V / 22 A R-134a no 2023-02-23 FPTU-66 1** A. O. Smith FPTU-66 1 61 × 23 in 240 V / 22 A R-134a no 2023-02-23 HPHE6266H045DV 1** American FPTU-66 1 61 × 23 in 240 V / 22 A R-134a no 2023-02-23 6-66-DHPHT 1** Reliance FPTU-66 1 61 × 23 in 240 V / 22 A R-134a no 2023-02-23 HP6-66-DHPT 1** State FPTU-66 1 61 × 23 in 240 V / 22 A R-134a no 2023-02-23 HPHE2F66HD045VU 1** U.S. Craftmaster FPTU-66 1 61 × 23 in 240 V / 22 A R-134a no 2023-02-23 FPTU-80 1** A. O. Smith FPTU-80 1 69 × 27 in 240 V / 22 A R-134a no 2023-02-23 HPHE6280H045DV 1** American FPTU-80 1 69 × 27 in 240 V / 22 A R-134a no 2023-02-23 6-80-DHPHT 1** Reliance FPTU-80 1 69 × 27 in 240 V / 22 A R-134a no 2023-02-23 HP6-80-DHPT 1** State FPTU-80 1 69 × 27 in 240 V / 22 A R-134a no 2023-02-23 HPHE2F80HD045VU 1** U.S. Craftmaster FPTU-80 1 69 × 27 in 240 V / 22 A R-134a no 2023-02-23
Nearest certified alternatives