LOCHINVAR GPVX-50L 2**
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).
Checking the LOCHINVAR GPVX-50L 2**? This gas tank heater uses 232 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 28 therms below the 260 therms median of the 414 gas tank models registered at the same draw pattern.
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
- 119 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 50 gal DOE CCD · 2026-09-19
What it costs to install
$2,345–$4,557 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 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 LOCHINVAR model on file
What this brand files, by heater type.
UEF 0.73 · Grade E Price it on your ZIP
This site calculated the 232 therms figure; the registry does not list it. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily draw for the high pattern. For this model the UEF is 0.73. The source is DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. A home that uses more or less hot water each day will use a different amount of gas. This page cannot say how much. Against its class, the model ranks 33rd for lowest energy use of 414, which places it in the lowest quarter. The steps behind the number are set out in how this site calculates annual energy use and cost.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. The registry lists a first hour rating, the gallons of hot water available in the first hour from a full tank, of 119 gallons. The rated volume is 50 gallons. A home with that kind of overlapping demand matches the test condition behind the 232 therms figure. For a household with lighter daily use, this page has no energy figure; that value is not available. The figure is also for natural gas only, and the page gives no figure for any other fuel. Readers comparing units across fuels or tank sizes can use the water heater selector by fuel, space and size.
The text gives no running cost for this model. Cost depends on your state's average residential gas price, so the page computes it from your ZIP and the 232 therms figure. At any single gas price, the 28 therms gap below the class median means a lower gas cost than a median unit. Its value in money stays unknown until a rate is applied. You can apply your own rate with the cost calculator for your ZIP. The installed price range sits in its own block with its source and date. It is a modeled range, not a quote. To check another unit at the same draw pattern, use find a same-class replacement by model number.
DOE CCD · 2026-09-19