Ruud PRO+G40S-40N RH67 PD
0.65 UEF DOE CCD · 2026-09-19Grade D: 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 this Ruud PRO+G40S-40N RH67 PD gas tank, it uses 171 therms of natural gas a year. That figure is for the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 14 therms below the class median of 185 therms, ranking 33rd lowest of 288 such models.
Energy use per year
171 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 33 of 288, lowest energy first.
Solid line: this model (171 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
- 0.65 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
- 69 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
$1,716–$2,950 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
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Find a water heater that fits
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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 0.65 · Grade D Price it on your ZIP
The 171 therms figure does not come from the registry. This site calculated it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for the medium pattern. This model's UEF is 0.65. The source is the DOE CCD, retrieved 2026-09-19. The comparison group is the 288 models registered as a gas tank at the medium draw pattern. That group's median is 185 therms, and this model sits 14 therms below it. That puts it in the lowest quarter of its class for energy use. A household that uses more or less hot water than the test assumes will use a different amount of gas. That amount is not available here. You can see each step in how the annual cost is calculated.
The rated volume is 39 gallons. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 69 gallons. The test treats the medium draw pattern as a typical household with a busy morning. The 171 therms figure describes a home whose use matches that pattern. If a home needs more than 69 gallons in its busiest hour, its demand is higher than this rating covers. A home that needs a different fuel or tank size falls outside the class comparison above. The selector by fuel, space and size filters by those needs. To match this unit within its own class, use the same-class replacement search by model number.
This text does not state a running cost. The cost depends on your state's average residential gas price, so the page calculates it from your ZIP. The calculation uses this model's 171 therms a year at the medium draw pattern. If the same rate is applied to the class median of 185 therms, it shows what the 14 therms gap means for your gas bill. If you are checking a quote or a listing, run the numbers in the cost calculator for your own ZIP. Elsewhere on this page, the installed price range appears as a modeled range with its own source and date. It is not a quote. This page cannot say how long the energy gap takes to recover any price difference. That depends on both your rate and your actual use.
DOE CCD · 2026-09-19