waterheaterspecs

Gas tankless · high draw

Noritz EZxxDV (GQ-CxxWX-FF US)

The Noritz EZxxDV (GQ-CxxWX-FF US) line holds five certified rating sets of gas tankless water heaters, 15 model numbers sold under two brand names, listed by Noritz America and Rinnai America. Gas input runs from 160,000 to 199,000 Btu/h, and max flow at a 67 °F rise runs from 4.7 to 5.6 gal/min. Noritz EZ111DV (GQ-C3261WX-FF US), the set with the most model numbers, rates 0.02 above the median UEF of the 39 high-draw gas tankless sets (0.96).

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

Size by size

Certified values of Noritz EZxxDV (GQ-CxxWX-FF US)
Rating setGas input, Btu/hMax flow, gal/minShare of heat ceilingUEFUEF rankTherms/yr
Noritz EZ71DV (GQ-C2661WX-FF US)2 model numbers160,0004.798%0.98 highhighest of 39, six tied173
Noritz EZ98DV (GQ-C2860WX-FF US)1 model number180,0005.6104%0.96 higheighth highest of 39, 13 tied176
Noritz EZ98DV (GQ-C2861WX-FF US)3 model numbers180,0005.399%0.98 highhighest of 39, six tied173
Noritz EZ111DV (GQ-C3260WX-FF US)3 model numbers199,0005.694%0.96 higheighth highest of 39, 13 tied176
Noritz EZ111DV (GQ-C3261WX-FF US)6 model numbers199,0005.593%0.98 highhighest of 39, six tied173

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%.

Noritz EZxxDV (GQ-CxxWX-FF US): max flow against gas input

Noritz EZxxDV (GQ-CxxWX-FF US)Other gas tankless sets

Max flow at a 67 °F rise, gal/min

Noritz EZxxDV (GQ-CxxWX-FF 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 NRCR92DV (GQ-C2660WXQ-FF US)Noritz NRCR92DV (GQ-C2661WXQ-FF US)Rheem ECOHS160INRheem ECOHS180INRheem ECOHS200INRinnai (CX160I) REU-NB2530FFC-USRinnai (CX199I) REU-NB3237FFC-USRinnai (RX130I) REU-NB2024FF-USVesta VRP-PLUS-150Vesta VRS PLUS-199Vesta VTP-150Vesta VTP-199Vesta VTS-150Noritz EZ111DV (GQ-C3261WX-FF US)Noritz EZ98DV (GQ-C2861WX-FF US)Noritz EZ111DV (GQ-C3260WX-FF US)Noritz EZ71DV (GQ-C2661WX-FF US)Noritz EZ98DV (GQ-C2860WX-FF US)
Noritz EZxxDV (GQ-CxxWX-FF 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 NRCR92DV (GQ-C2660WXQ-FF US)Noritz NRCR92DV (GQ-C2661WXQ-FF US)Rheem ECOHS160INRheem ECOHS180INRheem ECOHS200INRinnai (CX160I) REU-NB2530FFC-USRinnai (CX199I) REU-NB3237FFC-USRinnai (RX130I) REU-NB2024FF-USVesta VRP-PLUS-150Vesta VRS PLUS-199Vesta VTP-150Vesta VTP-199Vesta VTS-150Noritz EZ111DV (GQ-C3261WX-FF US)Noritz EZ98DV (GQ-C2861WX-FF US)Noritz EZ111DV (GQ-C3260WX-FF US)Noritz EZ71DV (GQ-C2661WX-FF US)Noritz EZ98DV (GQ-C2860WX-FF US)
Filled: the five sets of Noritz EZxxDV (GQ-CxxWX-FF US); open circles: the other 35 gas tankless sets. Dashed line: the flow that the full gas input could heat through a 67 °F rise.

Across the sizes

Moving from 160,000 Btu/h to 199,000 Btu/h of gas input lifts max flow from 4.7 gal/min to 5.6 gal/min, about 0.23 gal/min for each extra 10,000 Btu/h.

At 180,000 Btu/h the line lists two sets: EZ98DV (GQ-C2860WX-FF US) and EZ98DV (GQ-C2861WX-FF US).

Strongest placings, size by size

MeasureValueMedian of the groupPlacingCompared with
UEFNoritz EZ71DV (GQ-C2661WX-FF US)0.980.96highest of 39, six tied39 high-draw gas tankless sets
Rated gas useNoritz EZ71DV (GQ-C2661WX-FF US)173 therms/yr176 therms/yrlowest of 39, six tied39 high-draw gas tankless sets
UEFNoritz EZ98DV (GQ-C2860WX-FF US)0.960.96eighth highest of 39, 13 tied39 high-draw gas tankless sets
Max flow at a 67 °F riseNoritz EZ98DV (GQ-C2860WX-FF US)5.6 gal/min5.2 gal/mintenth highest of 40, three tied40 gas tankless sets
UEFNoritz EZ98DV (GQ-C2861WX-FF US)0.980.96highest of 39, six tied39 high-draw gas tankless sets
Rated gas useNoritz EZ98DV (GQ-C2861WX-FF US)173 therms/yr176 therms/yrlowest of 39, six tied39 high-draw gas tankless sets
Gas inputNoritz EZ111DV (GQ-C3260WX-FF US)199,000 Btu/h180,000 Btu/hhighest of 40, 13 tied40 gas tankless sets
UEFNoritz EZ111DV (GQ-C3260WX-FF US)0.960.96eighth highest of 39, 13 tied39 high-draw gas tankless sets
UEFNoritz EZ111DV (GQ-C3261WX-FF US)0.980.96highest of 39, six tied39 high-draw gas tankless sets
Gas inputNoritz EZ111DV (GQ-C3261WX-FF US)199,000 Btu/h180,000 Btu/hhighest of 40, 13 tied40 gas tankless sets

Model numbers

The line covers 15 model numbers under two brand names, first certified 2023-02-23 and most recently 2026-02-25.

Model numberBrandRating setVentFuelMin flowCertified
EZ71DV (GQ-C2661WX-FF US)NoritzEZ71DV (GQ-C2661WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2024-11-05
EZ71DV (GQ-C2661WX-FF-1 US)NoritzEZ71DV (GQ-C2661WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2026-02-25
EZ98DV (GQ-C2860WX-FF US)NoritzEZ98DV (GQ-C2860WX-FF US)Power Direct Ventnatural gas or propane0.50 gal/min2023-02-23
EZ98DV (GQ-C2861WX-FF US)NoritzEZ98DV (GQ-C2861WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2024-09-27
EZ98DV (GQ-C2861WX-FF-1 US)NoritzEZ98DV (GQ-C2861WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2026-02-25
(RX180I) REU-NB2934FF-USRinnaiEZ98DV (GQ-C2861WX-FF US)Power Direct Ventnatural gas or propane0.10 gal/min2024-01-25
EZ111DV (GQ-C3260WX-FF US)NoritzEZ111DV (GQ-C3260WX-FF US)Direct Ventnatural gas or propane0.50 gal/min2023-02-23
NCC199CDV (GQ-C3260WZ-FF US)NoritzEZ111DV (GQ-C3260WX-FF US)Power Direct Ventnatural gas or propane0.50 gal/min2023-02-23
NRCR111DV (GQ-C3260WXQ-FF US)NoritzEZ111DV (GQ-C3260WX-FF US)Power Direct Ventnatural gas or propane0.50 gal/min2023-02-23
EZ111DV (GQ-C3261WX-FF US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2024-11-05
EZ111DV (GQ-C3261WX-FF-1 US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2026-02-25
NCC199CDV (GQ-C3261WZ-FF US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2024-09-30
NCC199CDV (GQ-C3261WZ-FF-1 US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2026-02-25
NRCR111DV (GQ-C3261WXQ-FF US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2024-11-05
NRCR111DV(GQ-C3261WXQ-FF-1 US)NoritzEZ111DV (GQ-C3261WX-FF US)Power Direct Ventnatural gas or propane0.40 gal/min2026-02-25

Nearest certified alternatives

Rating setMax flowUEFGas input
Rinnai (CX199I) REU-NB3237FFC-UScompared with Noritz EZ111DV (GQ-C3261WX-FF US)+0.3 gal/min±0.00same Btu/h
Noritz NRCR92DV (GQ-C2661WXQ-FF US)compared with Noritz EZ111DV (GQ-C3261WX-FF US)−0.8 gal/min±0.00−34,000 Btu/h
Kepler JSG52-32PCH/199KNPcompared with Noritz EZ111DV (GQ-C3260WX-FF US)+0.1 gal/min±0.00same Btu/h
Rheem ECOHS200INcompared with Noritz EZ111DV (GQ-C3260WX-FF US)+0.2 gal/min±0.00same Btu/h
Navien NPE-210S2compared with Noritz EZ111DV (GQ-C3260WX-FF US)−0.3 gal/min±0.00−19,000 Btu/h

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