waterheaterspecs

Rinnai America Corporation

Rinnai America Corporation is the ENERGY STAR partner of record for 25 certified model numbers in 10 rating sets (15 heat-pump, 10 gas tankless), under 1 brand name. Of this partner’s model numbers, 40% share every certified rating with a model sold under another brand name, the lowest share of the seven maker pages on this site.

Certified models as of October 27, 2026 · Open these sets in the Heater finder

First-hour rating against rated volume, this partner against the rest of the heat-pump list

Listed hereOther heat-pump sets

First-hour rating, gal

First-hour rating against rated volume, this partner against the rest of the heat-pump list40608010012014030405060708090100110120Rated volume, gal1×1.5×A. O. Smith CAHP-40 2A. O. Smith CAHP-50 2A. O. Smith CAHP-66 2A. O. Smith CAHP-80 2A. O. Smith FPTU-50 1A. O. Smith FPTU-66 1A. O. Smith FPTU-80 1A. O. Smith HP1050H45DV 1A. O. Smith HP1080H45DV 1A. O. Smith HPACO-45 1+AXST-50LBTTP 1A. O. Smith HPACO-45 1+AXST-50T 1A. O. Smith HPACO-45 1+AXST-66 1A. O. Smith HPACO-45 1+AXST-80 1A. O. Smith HPS10-50H45DV 2A. O. Smith HPS10-66H45DV 2A. O. Smith HPS10-80H45DV 2A. O. Smith HPTU-66CTA 1A. O. Smith HPTV-50 2A. O. Smith HPTV-66 2A. O. Smith HPTV-80 2American Standard ASHPWH-40American Standard ASHPWH-50American Standard ASHPWH-65American Standard ASHPWH-80Arctic Arctic-HP-Hot Water-KA06-50Arctic Arctic-HP-Hot Water-KA06-80Ariston ARIHPWH-40-TAriston ARIHPWH-50-TAriston ARIHPWH-65-TAriston ARIHPWH-80-TBradford White RE2H50S-Bradford White RE2H65T-Bradford White RE2H80T-Bradford White RE2HP50-1NCTTBradford White RE2HP65-1NCTTBradford White RE2HP80-1NCTTCarnot Labs N51Eco-Logical OMNI-50HP1-1AEco-Logical OMNI-50HP2-1AEco-Logical OMNI-80HP2-1AFriedrich PROH40 T2 FD310BMFriedrich PROH50 T2 FD310BMFriedrich PROH65 T2 FD310BMFriedrich PROH80 T2 FD310BMGE Profile PF40S10FPY01GE Profile PF50S10FPY01GE Profile PF65S10FPY01GE Profile PF80S10FPY01GE Profile PH40S10BPY01GE Profile PH50S10BNY01GE Profile PH50S10BPY01GE Profile PH65S10BNY01GE Profile PH65S10BPY01GE Profile PH80S10BNY01GE Profile PH80S10BPY01Giant GTHPCO-45 1+GTXST-50S 1Gree GRS-3.0Pd/TD50GANhA-DGree GRS-3.0Pd/TD70GANhA-DLG APHWC501DLG APHWC502DLG APHWC801DLG APHWC802DMidea CAN3-RSJ-15/190RDVN3-L3Midea CAN3-RSJ-15/300RDVN3-L3Navien NWP500S050AUMBNavien NWP500S065AUMBNavien NWP500S080AUMBReclaim Energy MP120F-RCReclaim Energy MP80F-RCRheem PROPH40 T0 RH120-MRheem PROPH40 T2 RH375-15Rheem PROPH40 T2 RH375-30Rheem PROPH50 T0 RH120Rheem PROPH50 T0 RH120-MRheem PROPH50 T2 RH375-15Rheem PROPH50 T2 RH375-30Rheem PROPH65 T0 RH120-MRheem PROPH65 T2 RH375-15Rheem PROPH65 T2 RH375-30Rheem PROPH80 T0 RH120-MRheem PROPH80 T2 RH375-15Rheem PROPH80 T2 RH375-30SanCO2 GS5-45HPC HP + ECO-119GLBKSanCO2 GS5-45HPC HP + ECO-43SSAQBSanCO2 GS5-45HPC HP + ECO-83SSAQBSmart Solar SSG2-ES 120Smart Solar SSG2-ES 65Smart Solar SSG2-ES 80Vaughn Thermal ME120HPTVaughn Thermal ME50HPTVaughn Thermal ME65HPTVaughn Thermal ME80HPTVaughn Thermal MP120FHPTVaughn Thermal MP55FHPTVaughn Thermal MP80FHPTMidea CAN3-RSJ-15/250RDVN3-L3Rinnai REHP50Rinnai REHP80Midea CAN3-RSJ-15/190RDVN3-L4Midea CAN3-RSJ-15/250RDVN3-L4Midea CAN3-RSJ-15/300RDVN3-L4Rinnai REHP80
First-hour rating against rated volume, this partner against the rest of the heat-pump list406080100120140306090120Rated volume, galA. O. Smith CAHP-40 2A. O. Smith CAHP-50 2A. O. Smith CAHP-66 2A. O. Smith CAHP-80 2A. O. Smith FPTU-50 1A. O. Smith FPTU-66 1A. O. Smith FPTU-80 1A. O. Smith HP1050H45DV 1A. O. Smith HP1080H45DV 1A. O. Smith HPACO-45 1+AXST-50LBTTP 1A. O. Smith HPACO-45 1+AXST-50T 1A. O. Smith HPACO-45 1+AXST-66 1A. O. Smith HPACO-45 1+AXST-80 1A. O. Smith HPS10-50H45DV 2A. O. Smith HPS10-66H45DV 2A. O. Smith HPS10-80H45DV 2A. O. Smith HPTU-66CTA 1A. O. Smith HPTV-50 2A. O. Smith HPTV-66 2A. O. Smith HPTV-80 2American Standard ASHPWH-40American Standard ASHPWH-50American Standard ASHPWH-65American Standard ASHPWH-80Arctic Arctic-HP-Hot Water-KA06-50Arctic Arctic-HP-Hot Water-KA06-80Ariston ARIHPWH-40-TAriston ARIHPWH-50-TAriston ARIHPWH-65-TAriston ARIHPWH-80-TBradford White RE2H50S-Bradford White RE2H65T-Bradford White RE2H80T-Bradford White RE2HP50-1NCTTBradford White RE2HP65-1NCTTBradford White RE2HP80-1NCTTCarnot Labs N51Eco-Logical OMNI-50HP1-1AEco-Logical OMNI-50HP2-1AEco-Logical OMNI-80HP2-1AFriedrich PROH40 T2 FD310BMFriedrich PROH50 T2 FD310BMFriedrich PROH65 T2 FD310BMFriedrich PROH80 T2 FD310BMGE Profile PF40S10FPY01GE Profile PF50S10FPY01GE Profile PF65S10FPY01GE Profile PF80S10FPY01GE Profile PH40S10BPY01GE Profile PH50S10BNY01GE Profile PH50S10BPY01GE Profile PH65S10BNY01GE Profile PH65S10BPY01GE Profile PH80S10BNY01GE Profile PH80S10BPY01Giant GTHPCO-45 1+GTXST-50S 1Gree GRS-3.0Pd/TD50GANhA-DGree GRS-3.0Pd/TD70GANhA-DLG APHWC501DLG APHWC502DLG APHWC801DLG APHWC802DMidea CAN3-RSJ-15/190RDVN3-L3Midea CAN3-RSJ-15/300RDVN3-L3Navien NWP500S050AUMBNavien NWP500S065AUMBNavien NWP500S080AUMBReclaim Energy MP120F-RCReclaim Energy MP80F-RCRheem PROPH40 T0 RH120-MRheem PROPH40 T2 RH375-15Rheem PROPH40 T2 RH375-30Rheem PROPH50 T0 RH120Rheem PROPH50 T0 RH120-MRheem PROPH50 T2 RH375-15Rheem PROPH50 T2 RH375-30Rheem PROPH65 T0 RH120-MRheem PROPH65 T2 RH375-15Rheem PROPH65 T2 RH375-30Rheem PROPH80 T0 RH120-MRheem PROPH80 T2 RH375-15Rheem PROPH80 T2 RH375-30SanCO2 GS5-45HPC HP + ECO-119GLBKSanCO2 GS5-45HPC HP + ECO-43SSAQBSanCO2 GS5-45HPC HP + ECO-83SSAQBSmart Solar SSG2-ES 120Smart Solar SSG2-ES 65Smart Solar SSG2-ES 80Vaughn Thermal ME120HPTVaughn Thermal ME50HPTVaughn Thermal ME65HPTVaughn Thermal ME80HPTVaughn Thermal MP120FHPTVaughn Thermal MP55FHPTVaughn Thermal MP80FHPTMidea CAN3-RSJ-15/250RDVN3-L3Rinnai REHP50Rinnai REHP80Midea CAN3-RSJ-15/190RDVN3-L4Midea CAN3-RSJ-15/250RDVN3-L4Midea CAN3-RSJ-15/300RDVN3-L4Rinnai
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.

Rating sets by type

Heat pump, 6 rating sets

Heat-pump rating sets by draw pattern
Rating setRated volumeFirst-hour ratingUEFEnergyRefrigerantLow cut-off
High draw pattern4 of the 58 high-draw heat-pump sets
Rinnai REHP65CW
Show 2 model numbers
  • Rinnai REHP65CW*, REHP65W*
  • 4 more model numbers with these ratings are listed by another partner
61 gal80 gal4.001,234 kWh/yrR-134a37.4 °F
Rinnai REHP80CW
Show 2 model numbers
  • Rinnai REHP80CW, REHP80W
  • 4 more model numbers with these ratings are listed by another partner
75 gal91 gal4.001,230 kWh/yrR-134a37.4 °F
Rinnai REHP80
Show 3 model numbers
  • Rinnai REHP80, REHP80BM, REHP80C
75 gal91 gal4.001,225 kWh/yrR-134a37.4 °F
Rinnai REHP65
Show 3 model numbers
  • Rinnai REHP65, REHP65BM, REHP65C
  • 14 more model numbers with these ratings are listed by another partner
60 gal80 gal3.901,240 kWh/yrR-134a37.4 °F
Medium draw pattern2 of the 38 medium-draw heat-pump sets
Rinnai REHP50CW
Show 2 model numbers
  • Rinnai REHP50CW, REHP50W
  • 4 more model numbers with these ratings are listed by another partner
46 gal71 gal3.75861 kWh/yrR-134a37.4 °F
Rinnai REHP50
Show 3 model numbers
  • Rinnai REHP50, REHP50BM, REHP50C
46 gal73 gal3.75844 kWh/yrR-134a37.4 °F

Gas tankless, 4 rating sets

Gas tankless rating sets by gas input
Rating setMax flow, 67 °F riseGas inputUEF, drawGas useFuel
199,000 Btu/h1 set
Rinnai (CX199I) REU-NB3237FFC-US
Show 4 model numbers
  • Rinnai (CX199I) REU-NB3237FFC-US, (CXP199I) REU-NBP3237FFC-US, (RX199I) REU-NB3237FF-US, (RXP199I) REU-NBP3237FF-US
5.8 gal/min199,000 Btu/h0.98 high173 therms/yrnatural gas or propane
170,000 to 189,000 Btu/h1 set
Rinnai (RX180I) REU-NB2934FF-US
Show 1 model number
  • Rinnai (RX180I) REU-NB2934FF-US
  • 2 more model numbers with these ratings are listed by another partner
5.3 gal/min180,000 Btu/h0.98 high173 therms/yrnatural gas or propane
160,000 to 169,000 Btu/h1 set
Rinnai (CX160I) REU-NB2530FFC-US
Show 4 model numbers
  • Rinnai (CX160I) REU-NB2530FFC-US, (CXP160I) REU-NBP2530FFC-US, (RX160I) REU-NB2530FF-US, (RXP160I) REU-NBP2530FF-US
4.6 gal/min160,000 Btu/h0.97 high175 therms/yrnatural gas or propane
Under 160,000 Btu/h1 set
Rinnai (RX130I) REU-NB2024FF-US
Show 1 model number
  • Rinnai (RX130I) REU-NB2024FF-US
3.8 gal/min130,000 Btu/h0.97 medium114 therms/yrnatural gas or propane

Compressor cut-off

The listed lower cut-off is the air temperature below which the compressor stops and backup heat takes over. Of the 6 sets here, 6 report a single value, from 37.4 °F up to 37.4 °F.

Lowest compressor operating temperature by rating setListed here6 setsMidea CAN3-RSJ-15/190RDVN3-L4Midea CAN3-RSJ-15/250RDVN3-L3Midea CAN3-RSJ-15/250RDVN3-L4Midea CAN3-RSJ-15/300RDVN3-L4Rinnai REHP50Rinnai REHP80Other heat pumps84 setsSanCO2 GS5-45HPC HP + ECO-119GLBKSanCO2 GS5-45HPC HP + ECO-83SSAQBSmart Solar SSG2-ES 120Smart Solar SSG2-ES 65Smart Solar SSG2-ES 80Reclaim Energy MP120F-RCReclaim Energy MP80F-RCEco-Logical OMNI-50HP1-1AEco-Logical OMNI-50HP2-1AEco-Logical OMNI-80HP2-1ALG APHWC501DLG APHWC502DLG APHWC801DLG APHWC802D31 sets3129 sets29Carnot Labs N51Navien NWP500S050AUMBNavien NWP500S065AUMBNavien NWP500S080AUMBA. O. Smith FPTU-50 1A. O. Smith FPTU-66 1A. O. Smith FPTU-80 1A. O. Smith HP1050H45DV 1A. O. Smith HP1080H45DV 1A. O. Smith HPTU-66CTA 1−30 °F−20 °F−10 °F0 °F10 °F20 °F30 °F40 °F50 °F
Lowest compressor operating temperatureListed here6 setsMidea CAN3-RSJ-15/190RDVN3-L4Midea CAN3-RSJ-15/250RDVN3-L3Midea CAN3-RSJ-15/250RDVN3-L4Midea CAN3-RSJ-15/300RDVN3-L4Rinnai REHP50Rinnai REHP80Other heat pumps84 setsSanCO2 GS5-45HPC HP + ECO-119GLBKSanCO2 GS5-45HPC HP + ECO-83SSAQBSmart Solar SSG2-ES 120Smart Solar SSG2-ES 65Smart Solar SSG2-ES 80Reclaim Energy MP120F-RCReclaim Energy MP80F-RCEco-Logical OMNI-50HP1-1AEco-Logical OMNI-50HP2-1AEco-Logical OMNI-80HP2-1ALG APHWC501DLG APHWC502DLG APHWC801DLG APHWC802D31 sets3129 sets29Carnot Labs N51Navien NWP500S050AUMBNavien NWP500S065AUMBNavien NWP500S080AUMBA. O. Smith FPTU-50 1A. O. Smith FPTU-66 1A. O. Smith FPTU-80 1A. O. Smith HP1050H45DV 1A. O. Smith HP1080H45DV 1A. O. Smith HPTU-66CTA 1−20 °F0 °F20 °F40 °F
One dot per rating set; stacks taller than eight are drawn as a bar with the count.

Fuel listing

Counted by model number. Separate natural-gas and propane versions of one heater usually carry their own model numbers.

Brand names under this partner

Model numbers per brand and type, counted only where Rinnai America Corporation is the partner of record.

BrandHeat pumpGas tanklessAll
Rinnai151025

Keep reading