Ruud XE55T12CS55U0
0.92 UEF DOE CCD · 2026-09-19Grade G: 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 Ruud XE55T12CS55U0, this electric tank uses 3,531 kWh of electricity a year at the federal test's daily hot-water draw. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It is 0 kWh from its class median of 3,531 kWh.
Energy use per year
3,531 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 equal to the median of 3,531 kWh for the 426 models registered in the same heater type and draw pattern; it ranks 213 of 426, lowest energy first.
Solid line: this model (3,531 kWh). Dashed line: the class median.
Min 773 kWh Median 3,531 kWh Max 3,569 kWh
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.92 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
- 74 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 55 gal DOE CCD · 2026-09-19
What it costs to install
$1,866–$2,279 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) · 2026-04-01Safety 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 · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
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Find what replaces your water heater
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
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Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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Is a 50-gallon water heater enough?
Answered from what models in this size actually file.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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All electric resistance tank water heaters
Electric tanks that file a UEF below 2.0 — heated by elements, not a heat pump.
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Every Ruud model on file
What this brand files, by heater type.
UEF 0.92 · Grade G Price it on your ZIP
The registry does not print the 3,531 kWh figure. This site computes 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 draw pattern. For this model the UEF is 0.92, taken from the DOE CCD as retrieved on 2026-09-19. How the annual figure is calculated sets out each step. Among the 426 electric tanks registered at the medium draw pattern, this model ranks 213th lowest for energy use. Its annual use equals the class median of 3,531 kWh. This page has no figure for actual use in a given home, because the figure holds only at the federal test's draw.
In the DOE test, the medium draw pattern represents a typical household with a busy morning of hot-water use. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 74 gallons. Its rated volume is 55 gallons. A plumber or seller verifying a quote can check these two values and the 0.92 UEF against the unit's label. A home whose daily hot-water use differs from the medium draw pattern will not see 3,531 kWh a year. This page has no figure for other draw patterns on this model. Readers who need a different size or fuel can compare options in the water heater selector by fuel, space and size.
This text does not state the running cost. It depends on your own utility electricity tariff, applied to 3,531 kWh a year at the medium draw pattern. The page computes it from your ZIP, and the cost calculator for your own ZIP uses the same method. This model's use equals the class median of 3,531 kWh, a difference of 0 kWh. On a given tariff, its running cost therefore matches that of a model at the class median. The installed price range appears in its own block with its source and date. That range is a modeled installed cost, not a quote, so this text does not restate it.
DOE CCD · 2026-09-19