RELIANCE WATER HEATERS GDVNL-40L 1**
0.61 UEF DOE CCD · 2026-09-19Grade F: 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 unit, GDVNL-40L 1** uses 182 therms of natural gas a year at the medium draw pattern. Draw pattern, the standard daily hot-water usage DOE tests against, sets that figure. That is 3 therms below the class median of 185 therms. It ranks 73rd lowest in energy use among 288 gas tank models.
Energy use per year
182 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 73 of 288, lowest energy first.
Solid line: this model (182 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
- 0.61 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
- 64 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
$1,468–$2,313 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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Answered from what models in this size actually file.
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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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What this brand files, by heater type.
UEF 0.61 · Grade F Price it on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.61 for GDVNL-40L 1**. This site did not take the annual figure from the registry. It computed 182 therms from that UEF and the daily hot-water draw the DOE test uses for this draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure is 3 therms below the class median of 185 therms, and it ranks 73rd lowest of 288 models. That places it in the second-lowest quarter of its class for energy use. The method is set out under how the annual cost is calculated.
The energy figure applies to households whose hot-water use matches the medium draw pattern. A household that draws more or less will use a different amount of gas. This page has no figure for other draw patterns. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 64 gallons. Its rated volume is 38 gallons. Compare both values with your own peak-hour demand, which this data does not contain. The page therefore does not say whether the unit meets a given household's needs. To filter by fuel, space and size, use the water heater selector.
Running cost is not written as a figure here because it depends on the state average residential gas price where you live. The cost calculator applies that price, taken from your ZIP, to 182 therms for this model. The class median is 185 therms, which is 3 therms above this unit. At any rate, the cost difference between them is 3 therms multiplied by that rate. The modeled installed-cost range sits in its own block on the page, with its source and date. It is a modeled range, not a quote. If you need another model in the same class, find a same-class replacement by model number.
DOE CCD · 2026-09-19