DoesTheMath

Novair US3-RSJ-15/300RDVN3-L3

4 UEF DOE CCD · 2026-09-19
B

Grade B: where this UEF sits among the 194 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set

An electric tank, high draw pattern (a larger household, or one where showers and laundry overlap).

If you are checking this unit's figures, Novair US3-RSJ-15/300RDVN3-L3 uses 1,240 kWh of electricity a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 66 kWh below the class median of 1,306 kWh across 194 electric tank models registered at the same pattern.


Energy use per year

1,240 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 1,306 kWh for the 194 models registered in the same heater type and draw pattern; it ranks 30 of 194, lowest energy first.

This model: 1,240 kWh

Solid line: this model (1,240 kWh). Dashed line: the class median.

Min 1,002 kWh Median 1,306 kWh Max 5,334 kWh

DOE CCD · 2026-09-19

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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
4 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tank at the high draw pattern.
Draw Pattern the standard daily usage profile DOE tests the unit against
High 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
91 gal DOE CCD · 2026-09-19
Rated Storage Volume the tank size in gallons
74 gal DOE CCD · 2026-09-19
On the market since (ENERGY STAR) the date the manufacturer told ENERGY STAR the model went on sale
2025-05-01 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

$3,993–$4,924 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

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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 numbers21.8" ⌀
  • Electrical supplyEnter your numbers240V, 24A max
ENERGY STAR · 2026-09-19

What these figures mean

The registry lists a UEF, the ratio of hot water delivered to energy used, of 4 for Novair US3-RSJ-15/300RDVN3-L3. This site combined that UEF with the DOE test's daily hot-water draw for the draw pattern to get 1,240 kWh of electricity a year. The registry does not publish this figure; the site computed it from DOE CCD data retrieved on 2026-09-19. It holds only at the test's draw, so a home that uses more or less hot water will use a different amount. The model sits 66 kWh below the class median of 1,306 kWh. It ranks 30th lowest for energy use among 194 electric tank models, which places it in the lowest quarter of its class.

The high draw pattern describes a larger household, or one where showers and laundry overlap. For that use, the registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 91 gallons, with a rated volume of 74 gallons. The figure of 1,240 kWh applies to homes whose use is close to the test's draw. It does not describe a household with a lighter or heavier draw, and the data does not show whether these capacities meet a specific home's peak demand. To compare other fuels or sizes, use the water heater selector by fuel, space and size. To look at a same-class alternative, find a replacement by model number.

Running cost is not stated here because it depends on your own utility electricity tariff. The calculation is the annual energy of 1,240 kWh at the high draw pattern, multiplied by your rate per kilowatt-hour. The cost calculator on your own ZIP applies your rate to that figure, and the method behind the annual cost is described separately. The 66 kWh gap to the class median of 1,306 kWh converts to a yearly difference by the same rate. The installed price range appears in its own block on this page with its source and date. It is a modeled range, not a quote, and it is not repeated here. The energy figure was retrieved on 2026-09-19 and reflects the federal test, not measured use in a home.

DOE CCD · 2026-09-19

How this compares

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


Keep going

UEF 4 · Grade B Price it on your ZIP