Ruud PROG40-40N RH67 PDV
0.63 UEF DOE CCD · 2026-09-19Grade E: 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 verifying the Ruud PROG40-40N RH67 PDV, this gas tank heater uses 176 therms of natural gas a year. That figure belongs to the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 9 therms below the class median of 185 therms for gas tank models tested at that draw pattern.
Energy use per year
176 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 62 of 288, lowest energy first.
Solid line: this model (176 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
- 0.63 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
- 67 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
$1,585–$2,613 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 Ruud model on file
What this brand files, by heater type.
UEF 0.63 · Grade E Price it on your ZIP
The 176 therms figure is not a registry field. This site computed 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 draw pattern. For this model the UEF is 0.63, taken from the DOE CCD as retrieved on 2026-09-19. The result holds only at that test draw. A household that uses more hot water than the test assumes will burn more gas than 176 therms. One that uses less will burn less. The registry does not record how far real use departs from the test in any given home, so that gap is unknown here. The steps behind the figure are set out in how the annual cost is calculated.
Among the 288 models registered as a gas tank at the medium draw pattern, this one ranks 62nd lowest for energy use. That places it in the lowest quarter of its class. Its rated volume is 38 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 67 gallons. The medium draw pattern stands for a typical household's busy morning, so the rank applies to homes near that level of use. A home whose busiest hour needs more than 67 gallons falls outside what this rating covers. The rank also says nothing about other fuels or heater types, which sit outside this class. To compare across them, use the water heater selector by fuel, space and size. To stay within this class, find a same-class replacement by model number.
This page gives no running cost in its text. The cost of burning 176 therms of natural gas a year depends on your state's average residential gas price. The page therefore computes it from your ZIP rather than stating one figure for every reader. The same 176 therms leads to a different yearly cost in different states. The cost value of the 9 therms gap to the class median varies in the same way, and it is not stated here. To see the figure on your own rate, use the cost calculator on your own ZIP. The installed price range appears in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote from an installer.
DOE CCD · 2026-09-19