RELIANCE WATER HEATERS GPVNT-50 1**
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).
If you are verifying the RELIANCE WATER HEATERS GPVNT-50 1**, a gas tank heater, it uses 235 therms of natural gas a year. That figure applies to the high draw pattern, the standard daily hot-water usage DOE tests against. It is 25 therms below the 260 therms median of the 414 models in its class.
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
- 85 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 RELIANCE WATER HEATERS model on file
What this brand files, by heater type.
UEF 0.72 · Grade E Price it on your ZIP
This site calculated the 235 therms figure; the registry does not publish it. The calculation uses the registry's UEF, the ratio of hot water delivered to energy used, of 0.72. It also uses the DOE test's daily hot-water draw for the high pattern. The source is the DOE CCD, retrieved 2026-09-19. This model ranks 50th lowest in energy use of the 414 gas tank models registered at the high draw pattern. That places it in the lowest quarter of its class. The figure holds only at the federal test's daily draw. The registry gives no energy figure for this model at other daily draws, so that value is not available here. The steps behind the figure are set out in how this site calculates annual energy and cost.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. The unit's first hour rating, the gallons of hot water available in the first hour from a full tank, is 85 gallons. Its rated volume is 48 gallons. If a household's busiest hour needs more than 85 gallons, the rating does not cover that demand. A smaller household draws less than the test assumes, so the 235 therms figure does not describe its use. The registry lists no lower-draw figure for this model. To check a model with the same class at a different size or fuel, use the water heater selector by fuel, space and size. To match this class from a model number, use the same-class replacement lookup by model number.
The text of this page states no running cost for the 235 therms of natural gas. That cost depends on your state's average residential gas price, so the page calculates it from your ZIP. The 25 therms gap to the 260 therms class median is also measured at the test's draw. What that gap is worth on your bill depends on your own gas rate, which this text does not have. You can enter your ZIP in the cost calculator for your own ZIP to see both figures on the same basis. The installed price range is shown in its own block, with its source and date. It is a modeled installed-cost range, not a quote, and this text does not repeat its figures.
DOE CCD · 2026-09-19