Rinnai RX160I REU-NB2530FF-US is a gas tankless water heater from Rinnai rated 4.6 GPM at a 0.97 UEF — 175 therms/yr certified use, 160k BTU/h input.
Also sold as the Rinnai CX160I REU-NB2530FFC-US. This model is the same certified
hardware as the Rinnai CX160I REU-NB2530FFC-US, published under a
different brand — full details, comparisons, and pricing live on that page. The
certified figures below are identical.
Efficiency
Uniform Energy Factor (UEF)
0.97
Annual gas use (natural gas)
175 therms/yr
Recovery efficiency
98 %
Annual propane use
191.25 gal/yr
General
Fuel
Natural Gas, Propane
Capacity
Max flow rate
4.6 GPM
Draw pattern
High
Minimum activation flow
0.1 GPM
Performance
Gas input rate
160 kBTU/h
Installation
Max current draw
4 A
Vent type
Power Direct Vent
Vent size
2
Smart features
Smart / connected capable
No
Dimensions
Height
25.8 in
Diameter
11.4 in
Width
18.5 in
Depth
11.4 in
Certification
ENERGY STAR certified
Yes
Real flow rate by climate
A tankless heater's usable flow depends on how far it must raise incoming water
temperature. Sustained hot-water flow of the Rinnai RX160I REU-NB2530FF-US at common temperature
rises (a typical shower uses about 2 GPM of mixed water):
Is the Rinnai RX160I REU-NB2530FF-US ENERGY STAR certified?
Yes, the Rinnai RX160I REU-NB2530FF-US holds a current ENERGY STAR certification for water heating efficiency (UEF 0.97).
How much does the Rinnai RX160I REU-NB2530FF-US cost to run per year?
About $254 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What venting does the Rinnai RX160I REU-NB2530FF-US use?
The Rinnai RX160I REU-NB2530FF-US uses Power Direct Vent venting with 2 in vent connections. Matching the existing vent type is usually the cheapest replacement path.
Is the Rinnai RX160I REU-NB2530FF-US a smart water heater?
No, the Rinnai RX160I REU-NB2530FF-US is not connected-capable — it has no app connectivity or demand-response support.
