Ruud PROG50-38U RH60 EC1*
0.63 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 414 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, high draw pattern (a larger household, or one where showers and laundry overlap).
If you are verifying the Ruud PROG50-38U RH60 EC1*, a gas tank water heater, here is its annual figure. It uses 269 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 9 therms above the 260 therms median of the 414 models in its class.
Energy use per year
269 therms 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 natural gas rate where you live.
That is above the median of 260 therms for the 414 models registered in the same heater type and draw pattern; it ranks 320 of 414, lowest energy first.
Solid line: this model (269 therms). Dashed line: the class median.
Min 188 therms Median 260 therms Max 277 therms
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
- 0.63 DOE CCD · 2026-09-19 Compared only with other models registered as a gas 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
- 86 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 48 gal DOE CCD · 2026-09-19
What it costs to install
$1,732–$2,981 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 gas tank water heaters
Gas-fired storage tanks, every size and draw pattern on file.
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Every Ruud model on file
What this brand files, by heater type.
UEF 0.63 · Grade G Price it on your ZIP
This site computed the 269 therms figure; the registry does not publish it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the high draw pattern. For this model the UEF is 0.63, taken from the DOE CCD and retrieved 2026-09-19. The figure applies only at that test draw. A home that uses more or less hot water will burn a different amount of gas. There are 414 gas tank models registered at the high draw pattern. This one ranks 320th lowest among them for energy use, which puts it in the highest quarter of its class. The steps behind the figure are set out on the page explaining how this site calculates annual energy and cost.
The high draw pattern describes a larger household, or one where showers and laundry overlap. This unit's first hour rating, the gallons of hot water available in the first hour from a full tank, is 86 gallons. Its rated volume is 48 gallons. A plumber or seller checking a sizing claim can compare those two figures with the household's peak hot-water use. The data does not include this model's energy use at a lower draw pattern. So its figure for a smaller household is not available here. To compare other units on the same terms, use the water heater selector by fuel, space and size. It filters models by those three conditions.
This text does not state the running cost. The cost depends on the reader's state average residential gas price, so the page computes it from the reader's ZIP. The 269 therms figure is the input to that calculation at the high draw pattern. This model sits 9 therms above its class median. At any given gas rate, then, its yearly cost will be higher than that of a median model in the same class. A reader who wants a gas tank unit below the class median for energy use will not find one in this model. The same-class replacement search by model number lists other models in the class. The cost calculator for your own ZIP shows the running cost. The installed price range appears in its own block on this page. It is a modeled range, not a quote.
DOE CCD · 2026-09-19