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Rinnai RX130I

Ranked #19 of 40 in Best Gas Tankless Water Heaters (2026). Here is every spec we scored, where it came from, and how it compares.

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#19

Rinnai RX130I

Best for: Official UEF 0.97, maximum 3.8 GPM, minimum activation 0.1 GPM

4.1/10

What we like

  • Official uniform energy factor of 0.97
  • Lowest official minimum activation flow in this comparison (0.1 GPM)

Watch out for

  • Lower official maximum flow in this set (3.8 GPM)
  • ENERGY STAR does not list this model as connected-capable

Score breakdown

Uniform energy factor 34%
Maximum flow 32%
Minimum activation flow 18%
Connected capable 16%
Uniform energy factor0.97
Maximum flow3.8 GPM
Minimum activation flow0.1 GPM
Connected capableNo
Uniform energy factor (ENERGY STAR UEF)0.97
Maximum flow (ENERGY STAR)3.8 GPM
Minimum activation flow (ENERGY STAR)0.1 GPM
Fuel (ENERGY STAR)Natural Gas, Propane
Vent type (ENERGY STAR)Power Direct Vent
Input rate (ENERGY STAR)130,000 BTU/h
Annual natural-gas use (ENERGY STAR)114 therms/year
Maximum GPM per 10,000 BTU/h (computed)0.29 GPM per 10,000 BTU/h, computed as certified maximum GPM ÷ certified input rate
Connected capable (ENERGY STAR)No
Draw pattern (ENERGY STAR)Medium-Usage
Recovery efficiency (ENERGY STAR)98%
Dimensions (ENERGY STAR)25.8 × 18.5 × 11.4 in (H × W × D)
Certified model number(RX130I) REU-NB2024FF-US
Official brand name on the ENERGY STAR recordRinnai
PriceCheck price
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Specs sources:

Rinnai RX130I head-to-head

Head-to-headRinnai RX130I vs Takagi T-H3J-OS-N

How it compares

Open the full comparison table

Camplux RP199iB
8.7/10
#1 · Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.6 GPM, ENERGY STAR connected-capable
Camplux RT199iB
8.7/10
#2 · Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.6 GPM, ENERGY STAR connected-capable
Rinnai CX199I
8.1/10
#3 · Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.1 GPM
Rinnai CXP199I
8.1/10
#4 · Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.1 GPM
Rinnai RX199I
8.1/10
#5 · Official UEF 0.98, maximum 5.8 GPM, minimum activation 0.1 GPM
Rinnai RX180I
7.4/10
#6 · Official UEF 0.98, maximum 5.3 GPM, minimum activation 0.1 GPM
Noritz NCC199CDV (GQ-C3261WZ-FF US)
7.1/10
#7 · Official UEF 0.98, maximum 5.5 GPM, minimum activation 0.4 GPM
Noritz NRCR111DV (GQ-C3261WXQ-FF US)
7.1/10
#8 · Official UEF 0.98, maximum 5.5 GPM, minimum activation 0.4 GPM
Noritz NRCR92DV (GQ-C2661WXQ-FF US)
5.9/10
#9 · Official UEF 0.98, maximum 4.7 GPM, minimum activation 0.4 GPM
Vesta VTP-199
5.3/10
#10 · Official UEF 0.96, maximum 6 GPM, minimum activation 0.5 GPM
Rheem RTGH-S11I
5.2/10
#11 · Official UEF 0.96, maximum 5.8 GPM, minimum activation 0.4 GPM
Rinnai CX160I
5.2/10
#12 · Official UEF 0.97, maximum 4.6 GPM, minimum activation 0.1 GPM
Rinnai RX160I
5.2/10
#13 · Official UEF 0.97, maximum 4.6 GPM, minimum activation 0.1 GPM
Bradford White RTGR150N1
5.1/10
#14 · Official UEF 0.98, maximum 4.3 GPM, minimum activation 0.5 GPM
Kiturami KGWH-150JFN
5.1/10
#15 · Official UEF 0.98, maximum 4.3 GPM, minimum activation 0.5 GPM
Kiturami KGWH-190JFN
5.0/10
#16 · Official UEF 0.96, maximum 5.8 GPM, minimum activation 0.5 GPM
Kepler JSG52-32PCH/199KNP
4.7/10
#17 · Official UEF 0.96, maximum 5.7 GPM, minimum activation 0.6 GPM
Rheem RTGH-S10I
4.4/10
#18 · Official UEF 0.96, maximum 5.2 GPM, minimum activation 0.4 GPM
Navien NPE-240S2
4.0/10
#20 · Official UEF 0.96, maximum 5.8 GPM, minimum activation 1 GPM
MRCOOL MHWH199NCNU
3.6/10
#21 · Official UEF 0.95, maximum 5.7 GPM, minimum activation 0.6 GPM
Rheem RTGH-S84I
3.5/10
#22 · Official UEF 0.96, maximum 4.6 GPM, minimum activation 0.4 GPM
Vesta VTP-150
3.4/10
#23 · Official UEF 0.96, maximum 4.7 GPM, minimum activation 0.5 GPM
Bosch T9800 SE 199
3.3/10
#24 · Official UEF 0.95, maximum 5.4 GPM, minimum activation 0.5 GPM
Bosch T9800 SEO 199
3.3/10
#25 · Official UEF 0.95, maximum 5.4 GPM, minimum activation 0.5 GPM
Bosch T9900 SE 199
3.3/10
#26 · Official UEF 0.95, maximum 5.4 GPM, minimum activation 0.5 GPM
Bradford White RTG-K-199N1
3.3/10
#27 · Official UEF 0.95, maximum 5.4 GPM, minimum activation 0.5 GPM
Navien NPE-210S2
3.3/10
#28 · Official UEF 0.96, maximum 5.3 GPM, minimum activation 1 GPM
A. O. Smith ATHR-199M
3.1/10
#29 · Official UEF 0.95, maximum 5.9 GPM, minimum activation 1 GPM
A. O. Smith ACTH-199M-(N,P)
2.9/10
#30 · Official UEF 0.95, maximum 5.8 GPM, minimum activation 1 GPM
Takagi T-H3-OS-N
2.9/10
#31 · Official UEF 0.95, maximum 5.8 GPM, minimum activation 1 GPM
Takagi TCT-199O-N
2.9/10
#32 · Official UEF 0.95, maximum 5.8 GPM, minimum activation 1 GPM
Midea JSG48-29PCH-NG
2.8/10
#33 · Official UEF 0.95, maximum 5.2 GPM, minimum activation 0.6 GPM
Navien NPE-240A2
2.6/10
#34 · Official UEF 0.95, maximum 5.6 GPM, minimum activation 1 GPM
Bosch T9900 SE 160
2.2/10
#35 · Official UEF 0.95, maximum 4.6 GPM, minimum activation 0.5 GPM
Navien NPE-180S2
2.0/10
#36 · Official UEF 0.96, maximum 4.4 GPM, minimum activation 1 GPM
Midea JSG40-24PCH-NG
1.9/10
#37 · Official UEF 0.95, maximum 4.4 GPM, minimum activation 0.5 GPM
A. O. Smith ATHR-160M
1.5/10
#38 · Official UEF 0.95, maximum 4.8 GPM, minimum activation 1 GPM
Takagi T-H3J-OS-N
1.3/10
#39 · Official UEF 0.95, maximum 4.7 GPM, minimum activation 1 GPM
Navien NPE-180A2
0.7/10
#40 · Official UEF 0.95, maximum 4.3 GPM, minimum activation 1 GPM