A. O. SMITH GPVT-50 2**
0.72 UEF DOE CCD · 2026-09-19Grade E: 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).
You are checking the A. O. SMITH GPVT-50 2**, a gas tank. At the high draw pattern, the standard daily hot-water usage DOE tests against, it uses 235 therms of natural gas a year. That is 25 therms below the class median of 260 therms, and it ranks 50th lowest of 414 models.
Energy use per year
235 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 50 of 414, lowest energy first.
Solid line: this model (235 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
- 0.72 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
- 97 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 48 gal DOE CCD · 2026-09-19
What it costs to install
$2,258–$4,333 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 50-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 A. O. SMITH model on file
What this brand files, by heater type.
UEF 0.72 · Grade E Price it on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.72 for this model. This site combined that value with the DOE test's daily hot-water draw for the high draw pattern to get 235 therms of natural gas per year. The registry does not publish that annual figure, and it applies only at the federal test's draw. The class median is 260 therms, so this model sits 25 therms below it. Its rank of 50th lowest of 414 places it in the lowest quarter of its class for energy use. The source is DOE CCD, retrieved 2026-09-19. The steps behind the calculation are on the methodology page.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. The 235 therms figure fits a household that uses hot water like that test. The registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 97 gallons, with a rated volume of 48 gallons. Whether those gallons cover one household's busiest hour is not shown in the registry data. For a household that draws differently, the 235 therms figure does not apply, and this page has no annual figure for other draw patterns. It is stated in therms, so it is not directly comparable with an electric model's kilowatt-hours. To check fuel, space and size together, use the water heater selector, or look up a same-class replacement by model number.
The running cost is not stated in this text because it depends on the state average residential gas price, which differs by reader. The cost follows from 235 therms multiplied by the price per therm where you live. The cost calculator applies your ZIP to that figure. The gap from the class median is 25 therms, so against a median model at the same draw pattern, the yearly difference is that gap multiplied by the same price. The class used for that comparison is the 414 gas tank models registered at the high draw pattern. The modeled installed-cost range appears in its own block on this page with its source and date. It is a modeled range, not a quote, and it is not restated here.
DOE CCD · 2026-09-19