Rheem PROG40S-38N RH62
0.58 UEF DOE CCD · 2026-09-19Grade G: 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 Rheem PROG40S-38N RH62, this gas tank water heater uses 191 therms of natural gas a year. That figure applies at the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 6 therms above the 185 therms median of the 288 gas tank models at that draw pattern.
Energy use per year
191 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 185 therms for the 288 models registered in the same heater type and draw pattern; it ranks 231 of 288, lowest energy first.
Solid line: this model (191 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
- 0.58 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
- 65 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 39 gal DOE CCD · 2026-09-19
What it costs to install
$1,308–$1,899 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 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 Rheem model on file
What this brand files, by heater type.
UEF 0.58 · Grade G Price it on your ZIP
The registry does not list the 191 therms figure. This site calculated it from two inputs. The first is the registry's UEF, the ratio of hot water delivered to energy used. The second is the DOE test's daily hot-water draw for the medium pattern. The Rheem PROG40S-38N RH62 is listed at a UEF of 0.58. Among the 288 gas tank models at the medium draw pattern, it ranks 231st for lowest energy use. A lower rank means less energy use, so this model is among the higher users in its class. Every model in the class is measured at the same test draw, so the 6 therms gap from the 185 therms median compares like with like. The source is the DOE CCD, retrieved 2026-09-19. The page on how this site calculates annual energy and cost explains each step.
The medium draw pattern represents typical household use on a busy morning. The Rheem PROG40S-38N RH62 holds 39 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 65 gallons. The 191 therms figure applies to a home whose daily use matches the medium pattern. If a home uses more or less hot water than that pattern, its actual energy use will differ. This page does not have data on how large that difference would be. The registry also has no data on performance outside the test conditions. To compare this unit with other gas tank models at the same draw pattern, you can find a same-class replacement by model number.
The text gives no running cost for this model. The cost of 191 therms of natural gas depends on your state's average residential gas price. For that reason, the page calculates the cost from your ZIP code. The cost of the 6 therms gap above the class median also depends on your own rate. Enter your ZIP in the cost calculator to see the figure for your area. The installed price range appears in its own block with its source and date. That range is modeled, not a quote. All energy figures on this page come from the registry as retrieved on 2026-09-19. Registry changes made after that date are not reflected here.
DOE CCD · 2026-09-19