A. O. SMITH GPVNT-40 1**
0.73 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).
If you are verifying this model, the figure is 232 therms of natural gas a year. It applies to the high draw pattern, the standard daily hot-water usage DOE tests against. The class median is 260 therms, so this model sits 28 therms below it.
Energy use per year
232 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 33 of 414, lowest energy first.
Solid line: this model (232 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
- 0.73 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
- 91 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
$2,169–$4,116 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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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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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 0.73 · Grade E Price it on your ZIP
The A. O. SMITH GPVNT-40 1** is a gas tank water heater. Its UEF, the ratio of hot water delivered to energy used, is 0.73. This site computed 232 therms a year from that UEF and the DOE test's daily hot-water draw for the high draw pattern. The registry does not state this figure; the source is DOE CCD, retrieved 2026-09-19. The model ranks 33rd lowest for energy use of 414 models, in the lowest quarter of its class. The method for the annual figure is documented on the site.
The high draw pattern describes a larger household, or one where showers and laundry overlap. The first hour rating, the gallons of hot water available in the first hour from a full tank, is 91 gallons. The rated volume is 38 gallons. The figure of 232 therms applies only to that pattern. A household with lighter use falls under a different draw pattern. This page has no annual energy figure for it, so that value is not available. Whether 91 gallons covers a specific household's busiest hour is not stated in the registry data. To narrow by fuel, space and size, use the water heater selector.
The running cost depends on the state average residential gas price, so it is not stated in this text. The cost calculator applies your own ZIP's rate to 232 therms. That figure is for natural gas at the federal test's daily draw. Actual use in a home differs with the household and is not measured here. The 28 therms gap to the class median of 260 therms converts to cost at the same rate. To compare within the same class, find a same-class replacement by model number. This listing is one of 414 gas tank models at this draw pattern.
DOE CCD · 2026-09-19