DoesTheMath

RINNAI US3-RSJ-15/190RDVN3-L4

3.75 UEF DOE CCD · 2026-09-19
A

Grade A: where this UEF sits among the 426 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set

An electric tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).

If you are checking the RINNAI US3-RSJ-15/190RDVN3-L4 against the registry, this site calculates its annual energy use at 866 kWh of electricity. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 2,665 kWh below the class median of 3,531 kWh for electric tanks at that pattern.


Energy use per year

866 kWh a year

Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.

That is below the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 21 of 426, lowest energy first.

This model: 866 kWh

Solid line: this model (866 kWh). Dashed line: the class median.

Min 773 kWh Median 3,531 kWh Max 3,569 kWh

DOE CCD · 2026-09-19

Report an issue with this number


What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year on your own utility’s electricity rate.


What the registry files

UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
3.75 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the medium draw pattern.
Draw Pattern the standard daily usage profile DOE tests the unit against
Medium DOE CCD · 2026-09-19
First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
71 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
46 gal DOE CCD · 2026-09-19
On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
2026-05-30 ENERGY STAR · 2026-09-19
Connected / demand response (ENERGY STAR) whether the unit can take signals from your utility to shift when it heats, and by which standard (such as CTA-2045)
Yes (CTA-2045-B) ENERGY STAR · 2026-09-19
Refrigerant and GWP (ENERGY STAR) the refrigerant a heat pump unit uses and its global warming potential, a leak's climate effect relative to carbon dioxide (CO2 = 1)
R-134a, GWP 1430 ENERGY STAR · 2026-09-19
Sound level (ENERGY STAR) how loud the unit is while it runs, in decibels as filed
49 dB ENERGY STAR · 2026-09-19

What it costs to install

$3,057–$4,409 installed

Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.

Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.

NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01

Report an issue with this number


Safety record

No CPSC recall names this model.

Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.

CPSC · 2026-09-24

Does it fit your space?

Enter your own numbers below — this compares them to what ENERGY STAR publishes for this model, it does not tell you what to buy.

Compressor operating range (ENERGY STAR)
the air temperatures around the unit in which its heat pump runs; outside this range the heat pump stops
Dimensions (ENERGY STAR)
the unit's filed height, width, depth or tank diameter, in inches
Input voltage and maximum current (ENERGY STAR)
the circuit voltage the unit is certified on and the most current it draws
  • Ambient temperatureEnter your numbers37.4°F min, 107.6°F max
  • Physical footprintEnter your numbers18.3" ⌀
  • Electrical supplyEnter your numbers240V, 24A max
ENERGY STAR · 2026-09-19

What these figures mean

The registry does not list the 866 kWh figure. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the medium pattern. The registry lists a UEF of 3.75 for this model. The source is the DOE CCD, retrieved on 2026-09-19. There are 426 models registered as an electric tank at the medium draw pattern. This one ranks 21st lowest in energy use among them, against a class median of 3,531 kWh a year. Both figures assume the test's daily draw. If your household draws more or less hot water than the test assumes, your own use will differ from 866 kWh. The steps behind the annual energy and cost figures are published separately.

The medium draw pattern represents a typical mid-sized household with a busy morning. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 71 gallons. Its rated volume is 46 gallons. Those two figures describe how much hot water the unit can supply, while 866 kWh describes its energy use at the test draw. A household whose busiest hour needs more than 71 gallons needs more than this rating covers. A household that uses less hot water than the medium pattern should use less than 866 kWh. This page does not give an amount for that case. To compare other units, use the water heater selector by fuel, space and size.

This page does not give a running cost for this model. The cost of 866 kWh of electricity depends on your own utility tariff, and this page does not know your rate. The running-cost calculator for your own ZIP applies your local rate to this model's annual figure. The 2,665 kWh gap to the class median is a gap in energy use. Its value on a bill also depends on your rate, so this page does not state it. This page shows an installed-cost range in its own block, with its source and date. That range is modeled and is not a quote from an installer.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 3.75 · Grade A Price it on your ZIP