Home / Types / Heat pump / Under 50 gal Heat-pump water heaters under 50 gallons The under-50-gallon group holds 265 certified model numbers in 36 rating sets, from 45 brands. Eco-Logical OMNI-50HP2-1A has the highest UEF of all 38 medium-draw heat-pump sets on the list, 4.23. The group’s rating sets deliver a median of 1.47 gal in the first hour per rated gallon, the most of the five heat-pump groups on this site. The shortest heat-pump tank listed, 33 in tall, is A. O. Smith HPACO-45 1+AXST-50LBTTP 1. Of the group’s model numbers, 96% share every certified rating with a model sold under another brand name, the highest share of the same five groups.
Certified models as of October 27, 2026 · Open these sets in the Heater finder
First-hour rating against rated volume, this group against the rest of the heat-pump list
First-hour rating, gal
First-hour rating against rated volume, this group against the rest of the heat-pump list 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-66 2 A. O. Smith CAHP-80 2 A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPACO-45 1+AXST-66 1 A. O. Smith HPACO-45 1+AXST-80 1 A. O. Smith HPS10-66H45DV 2 A. O. Smith HPS10-80H45DV 2 A. O. Smith HPTU-66CTA 1 A. O. Smith HPTV-66 2 A. O. Smith HPTV-80 2 American Standard ASHPWH-65 American Standard ASHPWH-80 Arctic Arctic-HP-Hot Water-KA06-80 Ariston ARIHPWH-65-T Ariston ARIHPWH-80-T Bradford White RE2H65T- Bradford White RE2H80T- Bradford White RE2HP65-1NCTT Bradford White RE2HP80-1NCTT Eco-Logical OMNI-80HP2-1A Friedrich PROH65 T2 FD310BM Friedrich PROH80 T2 FD310BM GE Profile PF50S10FPY01 GE Profile PF65S10FPY01 GE Profile PF80S10FPY01 GE Profile PH50S10BNY01 GE Profile PH50S10BPY01 GE Profile PH65S10BNY01 GE Profile PH65S10BPY01 GE Profile PH80S10BNY01 GE Profile PH80S10BPY01 Gree GRS-3.0Pd/TD50GANhA-D Gree GRS-3.0Pd/TD70GANhA-D LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D 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 NWP500S065AUMB Navien NWP500S080AUMB Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC 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 REHP80 SanCO2 GS5-45HPC HP + ECO-119GLBK 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 ME65HPT Vaughn Thermal ME80HPT Vaughn Thermal MP120FHPT Vaughn Thermal MP55FHPT Vaughn Thermal MP80FHPT Giant GTHPCO-45 1+GTXST-50S 1 Rheem PROPH40 T2 RH375-30 Midea CAN3-RSJ-15/190RDVN3-L3 Rheem PROPH50 T2 RH375-30 A. O. Smith HP1050H45DV 1 A. O. Smith HPACO-45 1+AXST-50T 1 Friedrich PROH40 T2 FD310BM Friedrich PROH50 T2 FD310BM Rheem PROPH40 T0 RH120-M Rheem PROPH50 T0 RH120-M A. O. Smith CAHP-40 2 A. O. Smith CAHP-50 2 A. O. Smith HPACO-45 1+AXST-50LBTTP 1 Rheem PROPH50 T2 RH375-15 Rheem PROPH40 T2 RH375-15 A. O. Smith HPS10-50H45DV 2 A. O. Smith HPTV-50 2 Midea CAN3-RSJ-15/190RDVN3-L4 Rheem PROPH50 T0 RH120 A. O. Smith FPTU-50 1 Vaughn Thermal ME50HPT Rinnai REHP50 American Standard ASHPWH-40 American Standard ASHPWH-50 Arctic Arctic-HP-Hot Water-KA06-50 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Bradford White RE2H50S- Bradford White RE2HP50-1NCTT SanCO2 GS5-45HPC HP + ECO-43SSAQB Carnot Labs N51 Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A GE Profile PF40S10FPY01 GE Profile PH40S10BPY01 Navien NWP500S050AUMB Carnot Labs N51
First-hour rating against rated volume, this group against the rest of the heat-pump list 40 60 80 100 120 140 30 60 90 120 Rated volume, gal A. O. Smith CAHP-66 2 A. O. Smith CAHP-80 2 A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPACO-45 1+AXST-66 1 A. O. Smith HPACO-45 1+AXST-80 1 A. O. Smith HPS10-66H45DV 2 A. O. Smith HPS10-80H45DV 2 A. O. Smith HPTU-66CTA 1 A. O. Smith HPTV-66 2 A. O. Smith HPTV-80 2 American Standard ASHPWH-65 American Standard ASHPWH-80 Arctic Arctic-HP-Hot Water-KA06-80 Ariston ARIHPWH-65-T Ariston ARIHPWH-80-T Bradford White RE2H65T- Bradford White RE2H80T- Bradford White RE2HP65-1NCTT Bradford White RE2HP80-1NCTT Eco-Logical OMNI-80HP2-1A Friedrich PROH65 T2 FD310BM Friedrich PROH80 T2 FD310BM GE Profile PF50S10FPY01 GE Profile PF65S10FPY01 GE Profile PF80S10FPY01 GE Profile PH50S10BNY01 GE Profile PH50S10BPY01 GE Profile PH65S10BNY01 GE Profile PH65S10BPY01 GE Profile PH80S10BNY01 GE Profile PH80S10BPY01 Gree GRS-3.0Pd/TD50GANhA-D Gree GRS-3.0Pd/TD70GANhA-D LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D 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 NWP500S065AUMB Navien NWP500S080AUMB Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC 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 REHP80 SanCO2 GS5-45HPC HP + ECO-119GLBK 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 ME65HPT Vaughn Thermal ME80HPT Vaughn Thermal MP120FHPT Vaughn Thermal MP55FHPT Vaughn Thermal MP80FHPT Giant GTHPCO-45 1+GTXST-50S 1 Rheem PROPH40 T2 RH375-30 Midea CAN3-RSJ-15/190RDVN3-L3 Rheem PROPH50 T2 RH375-30 A. O. Smith HP1050H45DV 1 A. O. Smith HPACO-45 1+AXST-50T 1 Friedrich PROH40 T2 FD310BM Friedrich PROH50 T2 FD310BM Rheem PROPH40 T0 RH120-M Rheem PROPH50 T0 RH120-M A. O. Smith CAHP-40 2 A. O. Smith CAHP-50 2 A. O. Smith HPACO-45 1+AXST-50LBTTP 1 Rheem PROPH50 T2 RH375-15 Rheem PROPH40 T2 RH375-15 A. O. Smith HPS10-50H45DV 2 A. O. Smith HPTV-50 2 Midea CAN3-RSJ-15/190RDVN3-L4 Rheem PROPH50 T0 RH120 A. O. Smith FPTU-50 1 Vaughn Thermal ME50HPT Rinnai REHP50 American Standard ASHPWH-40 American Standard ASHPWH-50 Arctic Arctic-HP-Hot Water-KA06-50 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Bradford White RE2H50S- Bradford White RE2HP50-1NCTT SanCO2 GS5-45HPC HP + ECO-43SSAQB Carnot Labs N51 Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A GE Profile PF40S10FPY01 GE Profile PH40S10BPY01 Navien NWP500S050AUMB Carnot Labs
Each circle is one rating set; filled circles grow with the number of model numbers. Dashed lines mark first-hour output of 1× and 1.5× the rated volume. Every rating set Grouped by the DOE draw pattern each UEF was tested at (why ).
Heat-pump rating sets by draw pattern Rating set Rated volume First-hour rating UEF Energy Refrigerant Low cut-off High draw pattern1 of the 58 high-draw heat-pump sets Carnot Labs N51 Show 1 model number 47 gal 75 gal 3.53 1,404 kWh/yr R-513A 40 °F Medium draw pattern31 of the 38 medium-draw heat-pump sets Eco-Logical OMNI-50HP2-1A Lowest rated electricity use of the 38 medium-draw heat-pump sets Show 1 model number Eco-Logical OMNI-50HP2-1A46 gal 57 gal 4.23 769 kWh/yr R-513A 5 °F GE Profile PH40S10BPY01 Show 1 model number 40 gal 64 gal 4.20 773 kWh/yr R-1234yf 35 °F Bradford White RE2HP50-1NCTT Also listed as Jetglas Show 2 model numbers Bradford White RE2HP50**-1NCTTJetglas RE2HP50*-1NCTT45 gal 65 gal 3.89 835 kWh/yr R-134a 37 °F Arctic Arctic-HP-Hot Water-KA06-50 Also listed as Phnix Show 2 model numbers Arctic Arctic-HP-Hot Water-KA06-50Phnix KA06-5044.5 gal 65 gal 3.88 837 kWh/yr R-134a not listed Rheem PROPH50 T2 RH375-30 Also listed as Friedrich, Richmond, Ruud Show 20 model numbers Friedrich PROH50 T2 FD400-30, PROH50 T2 FD400-SO, PROH50 T2 FD400-Z30Rheem PROPH50 T2 RH375-30, PROPH50 T2 RH400-30, PROPH50 T2 RH400-SO, PROPH50 T2 RH400-Z30, XE50T10H45U1, XE50T10HS45U0, XE50T10HS45U1, XE50T10HZ45U1Richmond 10E50-HP530, 10E50-HP5U30, 10E50-HP5US30, 10E50-HP5UZ30Ruud PROUH50 T2 RU375-30, PROUH50 T2 RU375-SO, PROUH50 T2 RU400-30, PROUH50 T2 RU400-SO, PROUH50 T2 RU400-Z3045 gal 67 gal 3.88 846 kWh/yr R-1234yf, R-134a 37 °F Navien NWP500S050AUMB Show 1 model number 44 gal 65 gal 3.85 840 kWh/yr R-134a 41 °F Ariston ARIHPWH-50-T Also listed as Lennox Show 2 model numbers Ariston ARIHPWH-50-TLennox WHHP050T45MD240S****45 gal 69 gal 3.83 848 kWh/yr R-513A 35 °F Rheem PROPH40 T2 RH375-30 Also listed as Friedrich, Richmond, Ruud Show 23 model numbers Friedrich PROH40 T2 FD400-30, PROH40 T2 FD400-SO, PROH40 T2 FD400-Z30Rheem PROPH40 T2 RH375-30, PROPH40 T2 RH375-SO, PROPH40 T2 RH400-30, PROPH40 T2 RH400-SO, PROPH40 T2 RH400-Z30, XE40T10H45U0, XE40T10H45U1, XE40T10HS45U0, XE40T10HS45U1, XE40T10HZ45U1Richmond 10E40-HP530, 10E40-HP5S30, 10E40-HP5U30, 10E40-HP5US30, 10E40-HP5UZ30Ruud PROUH40 T2 RU375-30, PROUH40 T2 RU375-SO, PROUH40 T2 RU400-30, PROUH40 T2 RU400-SO, PROUH40 T2 RU400-Z3036 gal 60 gal 3.83 859 kWh/yr R-1234yf, R-134a 37 °F A. O. Smith HPS10-50H45DV 2 Also listed as American, Lochinvar, Reliance, State Show 7 model numbers A. O. Smith HPS10-50H45DV 2**, HPSN10-50H45DV 2**, HPTS-50 2**American HPS10250H045DV 2**Lochinvar HPSA050KD 2**Reliance 10-50-DHPTS 2**State HPSX-50-DHPT 2**46 gal 65 gal 3.80 831 kWh/yr R-134a 37 °F American Standard ASHPWH-50 Also listed as Ariston Show 2 model numbers American Standard ASHPWH-50*****Ariston ARIHPWH-5045 gal 68 gal 3.75 867 kWh/yr R-134a 35 °F Midea CAN3-RSJ-15/190RDVN3-L3 Also listed as 1HVAC, ACIQ, Alsetria, Bosch, Custom Comfort, DIYCOOL, Eco-Air, Eco-Logical, Gridless, Kepler, Novair, Perfect Aire, PolarWave, Senville, Stealth, stream33 Show 22 model numbers 1HVAC ACIQ-50G-HP-WHACIQ ACIQ-50G-HP-WHAlsetria HPWH-50GBosch TR7000T - 50USCustom Comfort CCOHPWH50ADIYCOOL ACIQ-50G-HP-WHEco-Air HPWH-50GEco-Logical ECO-50HPM1AGridless AYHW50GKepler AZMCHW-50VN3AMidea CAN3-RSJ-15/190RDVN3-L3, MAHW-50VN3A, MAWH50D2AKH, MCHW-50VN3A, US3-RSJ-15/190RDVN3-L3Novair TCL-50GL-R134APerfect Aire 1PAWH50GPolarWave ACIQ-50G-HP-WHSenville SENWH-HP50, SENWH-HP50USStealth ACIQ-50G-HP-WHstream33 S33-HPWH5047 gal 69 gal 3.75 855 kWh/yr R-134a 37.4 °F Midea CAN3-RSJ-15/190RDVN3-L4 Also listed as Rinnai Show 6 model numbers Midea CAN3-RSJ-15/190RDVN3-L4, MAHW-50VN3B, MCHW-50VN3B, US3-RSJ-15/190RDVN3-L4Rinnai REHP50CW, REHP50W46 gal 71 gal 3.75 861 kWh/yr R-134a 37.4 °F Rheem PROPH50 T2 RH375-15 Also listed as Friedrich, Richmond, Ruud Show 9 model numbers Friedrich PROH50 T2 FD400-15Rheem PROPH50 T2 RH375-15, PROPH50 T2 RH400-15, XE50T10H22U0, XE50T10H22U1Richmond 10E50-HP515, 10E50-HP5U15Ruud PROUH50 T2 RU375-15, PROUH50 T2 RU400-1545 gal 52 gal 3.75 846 kWh/yr R-134a 37 °F Rinnai REHP50 Show 3 model numbers Rinnai REHP50, REHP50BM, REHP50C46 gal 73 gal 3.75 844 kWh/yr R-134a 37.4 °F SanCO2 GS5-45HPC HP + ECO-43SSAQB Show 2 model numbers SanCO2 GS5-45HPC HP + ECO-43SSAQB, GS5-45HPC-D HP + ECO-43SSAQB43 gal 73 gal 3.70 868 kWh/yr R-744 not listed A. O. Smith CAHP-50 2 Also listed as American, Lochinvar, Reliance, State Show 9 model numbers A. O. Smith CAHP-50 2**, HPA10-50H45DV 2**, HPTA-50 2**American HPA10250H045DV 2**Lochinvar CHPA-50 2**, HPPA050KD 2**Reliance 10-50-DHPTA 2**State CSHP-50 2**, HPAX-50-DHPT 2**46 gal 65 gal 3.68 883 kWh/yr R-134a 37 °F A. O. Smith CAHP-40 2 Also listed as American, Lochinvar, Reliance, State Show 9 model numbers A. O. Smith CAHP-40 2**, HPA10-40H45DV 2**, HPTA-40 2**American HPA10240H045DV 2**Lochinvar CHPA-40 2**, HPPA040KD 2**Reliance 10-40-DHPTA 2**State CSHP-40 2**, HPAX-40-DHPT 2**36 gal 55 gal 3.60 902 kWh/yr R-134a 37 °F American Standard ASHPWH-40 Also listed as Ariston Show 2 model numbers American Standard ASHPWH-40*****Ariston ARIHPWH-4037 gal 66 gal 3.58 907 kWh/yr R-134a 35 °F A. O. Smith HPACO-45 1+AXST-50LBTTP 1 Also listed as American, GSW, Giant, John Wood, Lochinvar, Reliance, State Show 9 model numbers A. O. Smith HPACO-45 1**+AXST-50LBTTP 1**, HPACO-45C 1**+AXST-50LBCTTP 1*American MHPCO-45 1**+MXST-50LBTTP 1**GSW GHPCO-45 1**+GXST-50LBTTP 1**Giant GTHPCO-45 1**+GTXST-50LBTTP 1*John Wood JWHPCO-45 1**+JWXST-50LBTTP 1*Lochinvar LHPCO-45 1**+LXST-50LBTTP 1**Reliance RHPCO-45 1**+RXST-50LBG 1**State SHPCO-45 1**+SXST-50LBG 1**48 gal 72 gal 3.55 915 kWh/yr R-744 not listed Ariston ARIHPWH-40-T Also listed as Lennox Show 2 model numbers Ariston ARIHPWH-40-TLennox WHHP040T45MD240S****37 gal 65 gal 3.55 915 kWh/yr R-513A 35 °F A. O. Smith HPACO-45 1+AXST-50T 1 Also listed as American, John Wood, Lochinvar, Reliance, State Show 14 model numbers A. O. Smith HPACO-45 1**+AXST-50T 1**, HPACO-45 1**+AXST-50TTTP 1**, HPACO-45C 1**+AXST-50TC 1**, HPACO-45C 1**+AXST-50TCTTP 1**American MHPCO-45 1**+MXST-50T 1**, MHPCO-45 1**+MXST-50TTTP 1**John Wood JWHPCO-45 1**+JWXST-50T 1**, JWHPCO-45 1**+JWXST-50TTTP 1**Lochinvar LHPCO-45 1**+LXST-50T 1**, LHPCO-45 1**+LXST-50TTTP 1**Reliance RHPCO-45 1**+RXST-50T 1**, RHPCO-45 1**+RXST-50TG 1**State SHPCO-45 1**+SXST-50T 1**, SHPCO-45 1**+SXST-50TG 1**45 gal 67 gal 3.52 923 kWh/yr R-744 not listed Giant GTHPCO-45 1+GTXST-50S 1 Also listed as A. O. Smith, American, GSW, John Wood, Lochinvar, Reliance, State Show 25 model numbers A. O. Smith HPACO-45 1**+AXST-50S 1**, HPACO-45 1**+AXST-50STTP 1**, HPACO-45C 1**+AXST-50SC 1**, HPACO-45C 1**+AXST-50SCTTP 1**American MHPCO-45 1**+MXST-50S 1**, MHPCO-45 1**+MXST-50STTP 1**GSW GHPCO-45 1**+GXST-50S 1*, GHPCO-45 1**+GXST-50S 1**, GHPCO-45 1**+GXST-50STTP 1*, GHPCO-45 1**+GXST-50STTP 1**, GHPCO-45 1**+GXST-50T 1**, GHPCO-45 1**+GXST-50TTTP 1**Giant GTHPCO-45 1**+GTXST-50S 1*, GTHPCO-45 1**+GTXST-50S 1**, GTHPCO-45 1**+GTXST-50STTP 1*, GTHPCO-45 1**+GTXST-50STTP 1**, GTHPCO-45 1**+GTXST-50T 1**, GTHPCO-45 1**+GTXST-50TTTP 1**John Wood JWHPCO-45 1**+JWXST-50STTP 1**Lochinvar LHPCO-45 1**+LXST-50S 1**, LHPCO-45 1**+LXST-50STTP 1**Reliance RHPCO-45 1**+RXST-50S 1**, RHPCO-45 1**+RXST-50SG 1**State SHPCO-45 1**+SXST-50S 1**, SHPCO-45 1**+SXST-50SG 1**46 gal 70 gal 3.52 923 kWh/yr R-744 not listed Friedrich PROH40 T2 FD310BM Also listed as Rheem, Ruud Show 12 model numbers Friedrich PROH40 T2 FD310BM, PROH40 T2 FD310UM, PROH40 T2 FD350BM, PROH40 T2 FD350UMRheem PRO H40 T2 RH310BM, PRO H40 T2 RH310UM, PROUH40 T2 RH350BM, PROUH40 T2 RH350UMRuud PRO H40 T2 RU310BM, PRO H40 T2 RU310UM, PROUH40 T2 RU350BM, PROUH40 T2 RU350UM36 gal 60 gal 3.50 879 kWh/yr R-134a 37 °F Friedrich PROH50 T2 FD310BM Also listed as Rheem, Ruud Show 12 model numbers Friedrich PROH50 T2 FD310BM, PROH50 T2 FD310UM, PROH50 T2 FD350BM, PROH50 T2 FD350UMRheem PRO H50 T2 RH310BM, PRO H50 T2 RH310UM, PROUH50 T2 RH350BM, PROUH50 T2 RH350UMRuud PRO H50 T2 RU310BM, PRO H50 T2 RU310UM, PROUH50 T2 RU350BM, PROUH50 T2 RU350UM45 gal 67 gal 3.50 915 kWh/yr R-134a 37 °F Vaughn Thermal ME50HPT Also listed as Hubbell, Noritz Show 4 model numbers Hubbell ME50HPTNoritz NHP50Vaughn Thermal ME50HPT, ME50HPT-CN47 gal 58 gal 3.46 938 kWh/yr R-134a 35 °F A. O. Smith HP1050H45DV 1 Also listed as American, Lochinvar, Reliance, State, U.S. Craftmaster Show 14 model numbers A. O. Smith HP1050H45DV 1**, HP1050H45DVCTA-1**, HPTU-50CTA 1**, HPTU-50DR 1**, HPTU-50N 1**American HPHE10250H045DVCTA-1**, HPHE10250H045DVDR 1**, HPHE10250H045DVN 1**Lochinvar HPA052KD 1**Reliance 10-50-DHPHTCTA 1**, 10-50-DHPHTNE 1**State HPX-50-DHPTCTA 1**, HPX-50-DHPTNE 1**U.S. Craftmaster HPHE2K50HD045VUN 1**46 gal 66 gal 3.45 902 kWh/yr R-134a 45 °F Bradford White RE2H50S- Also listed as Jetglas Show 2 model numbers Bradford White RE2H50S*-*****Jetglas RE2H50S*-*****45 gal 65 gal 3.44 944 kWh/yr R-134a 35 °F A. O. Smith FPTU-50 1 Also listed as American, Reliance, State, U.S. Craftmaster Show 5 model numbers A. O. Smith FPTU-50 1**American HPHE6250H045DV 1**Reliance 6-50-DHPHT 1**State HP6-50-DHPT 1**U.S. Craftmaster HPHE2F50HD045VU 1**46 gal 66 gal 3.35 970 kWh/yr R-134a 45 °F A. O. Smith HPTV-50 2 Also listed as American, Lochinvar, Reliance, State Show 6 model numbers A. O. Smith HPTV-50 2**, HPV10-50H01DV 2**American HPV10250H009DV 2**Lochinvar HPV050KD 2**Reliance 10-50-DHPTV 2**State HPVX-50-DHPT 2**46 gal 52 gal 3.00 1,550 kWh/yr R-513A 37 °F Rheem PROPH50 T0 RH120 Also listed as Friedrich, Richmond, Ruud Show 6 model numbers Friedrich PROH50 T0 FD120Rheem PROPH50 T0 RH120, XE50T10H15U0, XE50T10HD00U0Richmond 10E50-HP120Ruud PROUH50 T0 RU12046 gal 51 gal 3.00 1,082 kWh/yr R-134a not listed Rheem PROPH50 T0 RH120-M Also listed as Friedrich, Richmond, Ruud Show 10 model numbers Friedrich PROH50 T0 FD120-M, PROH50 T0 FD120-MSORheem PROPH50 T0 RH120-M, PROPH50 T0 RH120-MSO, XE50T10HM00U0, XE50T10HMS00U0Richmond 10E50-HP120M, 10E50-HP120MSRuud PROUH50 T0 RU120-M, PROUH50 T0 RU120-MSO46 gal 55 gal 3.00 1,072 kWh/yr R-134a not listed Low draw pattern4 of the 5 low-draw heat-pump sets Rheem PROPH40 T2 RH375-15 Also listed as Friedrich, Richmond, Ruud Show 8 model numbers Friedrich PROH40 T2 FD400-15Rheem PROPH40 T2 RH375-15, PROPH40 T2 RH400-15, XE40T10H22U0, XE40T10H22U1Richmond 10E40-HP5U15Ruud PROUH40 T2 RU375-15, PROUH40 T2 RU400-1536 gal 46 gal 3.45 643 kWh/yr R-134a 37 °F Eco-Logical OMNI-50HP1-1A Show 1 model number Eco-Logical OMNI-50HP1-1A46 gal 50 gal 3.30 681 kWh/yr R-513A 5 °F GE Profile PF40S10FPY01 Show 1 model number 40 gal 46 gal 3.10 724 kWh/yr R-1234yf 35 °F Rheem PROPH40 T0 RH120-M Also listed as Friedrich, Richmond, Ruud Show 10 model numbers Friedrich PROH40 T0 FD120-M, PROH40 T0 FD120-MSORheem PROPH40 T0 RH120-M, PROPH40 T0 RH120-MSO, XE40T10HM00U0, XE40T10HMS00U0Richmond 10E40-HP120M, 10E40-HP120MSRuud PROUH40 T0 RU120-M, PROUH40 T0 RU120-MSO36 gal 45 gal 2.80 780 kWh/yr R-134a not listed
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 Compressor cut-off The listed lower cut-off is the air temperature below which the compressor stops and backup heat takes over. Of the 36 sets here, 28 report a single value; the most common is 37 °F (11 sets) and the lowest 5 °F.
Lowest compressor operating temperature by rating set Under 50 gal 28 sets Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A American Standard ASHPWH-40 American Standard ASHPWH-50 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Bradford White RE2H50S- GE Profile PF40S10FPY01 GE Profile PH40S10BPY01 Vaughn Thermal ME50HPT 14 sets 14 Carnot Labs N51 Navien NWP500S050AUMB A. O. Smith FPTU-50 1 A. O. Smith HP1050H45DV 1 Other heat pumps 62 sets SanCO2 GS5-45HPC HP + ECO-119GLBK SanCO2 GS5-45HPC HP + ECO-83SSAQB Smart Solar SSG2-ES 120 Smart Solar SSG2-ES 65 Smart Solar SSG2-ES 80 Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC Eco-Logical OMNI-80HP2-1A LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D 23 sets 23 21 sets 21 Navien NWP500S065AUMB Navien NWP500S080AUMB A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPTU-66CTA 1 −30 °F −20 °F −10 °F 0 °F 10 °F 20 °F 30 °F 40 °F 50 °F
Lowest compressor operating temperature Under 50 gal28 sets Eco-Logical OMNI-50HP1-1A Eco-Logical OMNI-50HP2-1A American Standard ASHPWH-40 American Standard ASHPWH-50 Ariston ARIHPWH-40-T Ariston ARIHPWH-50-T Bradford White RE2H50S- GE Profile PF40S10FPY01 GE Profile PH40S10BPY01 Vaughn Thermal ME50HPT 14 sets 14 Carnot Labs N51 Navien NWP500S050AUMB A. O. Smith FPTU-50 1 A. O. Smith HP1050H45DV 1 Other heat pumps62 sets SanCO2 GS5-45HPC HP + ECO-119GLBK SanCO2 GS5-45HPC HP + ECO-83SSAQB Smart Solar SSG2-ES 120 Smart Solar SSG2-ES 65 Smart Solar SSG2-ES 80 Reclaim Energy MP120F-RC Reclaim Energy MP80F-RC Eco-Logical OMNI-80HP2-1A LG APHWC501D LG APHWC502D LG APHWC801D LG APHWC802D 23 sets 23 21 sets 21 Navien NWP500S065AUMB Navien NWP500S080AUMB A. O. Smith FPTU-66 1 A. O. Smith FPTU-80 1 A. O. Smith HP1080H45DV 1 A. O. Smith HPTU-66CTA 1 −20 °F 0 °F 20 °F 40 °F
One dot per rating set; stacks taller than eight are drawn as a bar with the count. Refrigerants
190 50 13 12 Counted by model number, 265 with a listed refrigerant.