Rheem PROG40-40N RH62
0.66 UEF DOE CCD · 2026-09-19Grade F: 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 checking the Rheem PROG40-40N RH62, this gas tank heater uses 256 therms of natural gas a year. That figure applies to the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 4 therms below the 260 therms median for its class.
Energy use per year
256 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 260 therms for the 414 models registered in the same heater type and draw pattern; it ranks 192 of 414, lowest energy first.
Solid line: this model (256 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
- 0.66 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
- 84 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 38 gal DOE CCD · 2026-09-19
What it costs to install
$1,760–$3,064 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 0.66 · Grade F Price it on your ZIP
This site calculates the 256 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. This model's UEF is 0.66. The registry values were retrieved from the DOE CCD on 2026-09-19. The 256 therms figure holds only at the federal test's daily draw. The registry records no use outside that draw. The gas use of a household whose daily hot-water use differs from the test draw is therefore not available here. The steps behind the figure are set out in how the annual energy and cost figures are calculated.
The class is the 414 models registered as a gas tank at the high draw pattern. Within it, this unit ranks 192nd lowest in energy use. That places it in the second-lowest quarter of its class for energy use. The high draw pattern describes a larger household, or one where showers and laundry overlap. The model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 84 gallons. Its rated volume is 38 gallons. This rating does not cover a home whose peak-hour demand is above 84 gallons. A home with lighter daily use belongs to a different draw pattern, so this energy figure does not apply to it. To compare other fuels and sizes, use the water heater selector by fuel, space and size.
This text does not state a running cost for the PROG40-40N RH62. The cost depends on your state's average residential gas price. The page calculates it from your ZIP by applying that price to 256 therms a year at the high draw pattern. Any cost result carries the same condition as the energy figure: it holds only at the federal test's daily draw. Elsewhere on this page, the installed-cost range has its own block with its source and date. It is a modeled range, not a quote. To work out the cost at your own rate, open the running cost calculator for your ZIP. To find a unit in the same class, search the same-class replacement finder by model number.
DOE CCD · 2026-09-19