Ruud PRO+G38-40N RH69 PD
0.68 UEF DOE CCD · 2026-09-19Grade C: where this UEF sits among the 288 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking the Ruud PRO+G38-40N RH69 PD, a gas tank water heater, this site calculates its annual energy use at 163 therms of natural gas. That figure applies to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 22 therms below the 185 therms median of its class.
Energy use per year
163 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 below the median of 185 therms for the 288 models registered in the same heater type and draw pattern; it ranks 5 of 288, lowest energy first.
Solid line: this model (163 therms). Dashed line: the class median.
Min 148 therms Median 185 therms Max 194 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
- 0.68 DOE CCD · 2026-09-19 Compared only with other models registered as a gas 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
- 66 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 37 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's rated tank size lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
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 · 2026-09-24What 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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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 40-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 0.68 · Grade C Price it on your ZIP
The registry does not list the 163 therms figure. This site calculated it from two inputs. The first is the model's UEF, the ratio of hot water delivered to energy used, which DOE CCD lists at 0.68. The second is the DOE test's daily hot-water draw for the medium draw pattern. The registry data was retrieved on 2026-09-19. The result holds only at that test draw. A household that uses more hot water each day than the test assumes will use more gas than 163 therms. A household that uses less will use less. Among the 288 models registered as a gas tank at the medium draw pattern, this one has the 5th lowest energy use. The page on how the annual energy and cost figures are calculated sets out each step.
The model has a rated volume of 37 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 66 gallons. DOE uses the medium draw pattern to represent typical household hot-water use. The model fits a household whose busiest hour stays within 66 gallons. It does not fit a household whose busiest hour needs more than 66 gallons. That household would also use more energy than the 163 therms test figure. The 5th rank compares this model only with gas tank models at the medium draw pattern. It says nothing about heat pump or tankless units, which belong to other classes. To check a unit in the same class, use the same-class replacement search by model number. To look across other fuels and sizes, use the water heater selector by fuel, space and size.
This page does not state the running cost. It depends on your state's average residential gas price. The running cost calculator for your own ZIP multiplies 163 therms by that rate. It converts the 22 therms gap to the class median into a cost gap at the same rate. This page does not publish an installed price range for this model. Its ratings lie outside the range that the cost database's model was fitted on, and this site does not extend the range beyond it. To check a label against the registry, compare the UEF of 0.68, the rated volume of 37 gallons and the first hour rating of 66 gallons.
DOE CCD · 2026-09-19