waterheaterspecs

Gas tankless · medium draw

Rinnai (RX130I) REU-NB2024FF-US

Rinnai (RX130I) REU-NB2024FF-US is a gas tankless water heater certified as a single rating set, a single model number sold as Rinnai, listed by Rinnai America. Max flow 3.8 gal/min at a 67 °F rise from 130,000 Btu/h of gas input, UEF 0.97 at the medium draw pattern. This set lists 130,000 Btu/h, the lowest of the 40 gas tankless sets. This set lists 3.8 gal/min, the lowest of the 40 gas tankless sets.

Certified as of October 27, 2026 · EPA ENERGY STAR data, public domain · Compare in the Heater finder

Certified values

Certified values of Rinnai (RX130I) REU-NB2024FF-US
Rating setGas input, Btu/hMax flow, gal/minShare of heat ceilingUEFUEF rankTherms/yr
Rinnai (RX130I) REU-NB2024FF-US1 model number130,0003.898%0.97 mediumhighest of 1114

Share of heat ceiling: listed flow ÷ the flow the gas input could heat through 67 °F at 100% efficiency; test tolerances allow a little over 100%.

Rinnai (RX130I) REU-NB2024FF-US: max flow against gas input

Rinnai (RX130I) REU-NB2024FF-USOther gas tankless sets

Max flow at a 67 °F rise, gal/min

Rinnai (RX130I) REU-NB2024FF-US: max flow against gas input3.54.04.55.05.56.06.5120130140150160170180190200Gas input, thousand Btu/hA. O. Smith ACT-199O-N 1A. O. Smith ATHR-160M 1A. O. Smith ATHR-180M 1A. O. Smith ATHR-199M 1A. O. Smith ATI-340H 1A. O. Smith ATM-140M-N 1A. O. Smith ATM-199M-N 1A. O. Smith ATO-240H 1Bosch T9800 SE 160Bosch T9800 SE 199Bradford White RTGR150N1Kepler JSG48-29PCH/180KKepler JSG52-32PCH/199KNPMidea JSG40-24PCH-LPMidea JSG48-29PCH-LPMidea JSG52-32PCH-LPMidea MGWH150IXNNNavien NPE-180A2Navien NPE-180S2Navien NPE-210A2Navien NPE-210S2Navien NPE-240A2Noritz EZ111DV (GQ-C3260WX-FF US)Noritz EZ111DV (GQ-C3261WX-FF US)Noritz EZ71DV (GQ-C2661WX-FF US)Noritz EZ98DV (GQ-C2860WX-FF US)Noritz EZ98DV (GQ-C2861WX-FF US)Noritz NRCR92DV (GQ-C2660WXQ-FF US)Noritz NRCR92DV (GQ-C2661WXQ-FF US)Rheem ECOHS160INRheem ECOHS180INRheem ECOHS200INRinnai (CX160I) REU-NB2530FFC-USRinnai (CX199I) REU-NB3237FFC-USVesta VRP-PLUS-150Vesta VRS PLUS-199Vesta VTP-150Vesta VTP-199Vesta VTS-150Rinnai (RX130I) REU-NB2024FF-US
Rinnai (RX130I) REU-NB2024FF-US: max flow against gas input3.54.04.55.05.56.06.5120140160180200Gas input, thousand Btu/hA. O. Smith ACT-199O-N 1A. O. Smith ATHR-160M 1A. O. Smith ATHR-180M 1A. O. Smith ATHR-199M 1A. O. Smith ATI-340H 1A. O. Smith ATM-140M-N 1A. O. Smith ATM-199M-N 1A. O. Smith ATO-240H 1Bosch T9800 SE 160Bosch T9800 SE 199Bradford White RTGR150N1Kepler JSG48-29PCH/180KKepler JSG52-32PCH/199KNPMidea JSG40-24PCH-LPMidea JSG48-29PCH-LPMidea JSG52-32PCH-LPMidea MGWH150IXNNNavien NPE-180A2Navien NPE-180S2Navien NPE-210A2Navien NPE-210S2Navien NPE-240A2Noritz EZ111DV (GQ-C3260WX-FF US)Noritz EZ111DV (GQ-C3261WX-FF US)Noritz EZ71DV (GQ-C2661WX-FF US)Noritz EZ98DV (GQ-C2860WX-FF US)Noritz EZ98DV (GQ-C2861WX-FF US)Noritz NRCR92DV (GQ-C2660WXQ-FF US)Noritz NRCR92DV (GQ-C2661WXQ-FF US)Rheem ECOHS160INRheem ECOHS180INRheem ECOHS200INRinnai (CX160I) REU-NB2530FFC-USRinnai (CX199I) REU-NB3237FFC-USVesta VRP-PLUS-150Vesta VRS PLUS-199Vesta VTP-150Vesta VTP-199Vesta VTS-150Rinnai (RX130I) REU-NB2024FF-US
Filled: the Rinnai (RX130I) REU-NB2024FF-US; open circles: the other 39 gas tankless sets. Dashed line: the flow that the full gas input could heat through a 67 °F rise.

Where this set stands

MeasureValueMedian of the groupPlacingCompared with
Max flow at a 67 °F rise3.8 gal/min5.2 gal/minlowest of 4040 gas tankless sets
UEF0.970.97highest of 11 medium-draw gas tankless sets
Rated gas use114 therms/yr114 therms/yrlowest of 11 medium-draw gas tankless sets
Gas input130,000 Btu/h180,000 Btu/hlowest of 4040 gas tankless sets

Model numbers

The set covers a single model number, certified 2024-01-25.

Model numberBrandVentFuelMin flowCertified
(RX130I) REU-NB2024FF-USRinnaiPower Direct Ventnatural gas or propane0.10 gal/min2024-01-25

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