LOCHINVAR 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).
If you are checking the LOCHINVAR GPVT-50 2**, it uses 235 therms of natural gas a year at the high draw pattern, the standard daily hot-water usage DOE tests against. That is 25 therms below the 260 therms median of the 414 gas tank models registered at that draw pattern, ranking 50th lowest.
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 LOCHINVAR 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. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw for the high draw pattern. For this model the UEF is 0.72, taken from the DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. A household that draws more or less hot water each day will use a different amount of gas. The steps behind the conversion are set out in how this site calculates annual energy and cost. This data does not cover energy use in real homes, so that is unknown here.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. This model's first hour rating, the gallons of hot water available in the first hour from a full tank, is 97 gallons. Its rated volume is 48 gallons. As the rank above shows, its energy use is in the lowest quarter of the gas tank models registered at the high draw pattern. That position applies only within this class. Models registered under another heater type or draw pattern are not part of the comparison. If you need to match a unit, you can find a same-class replacement by model number.
The 235 therms figure does not describe a smaller household that uses less hot water than the high draw pattern assumes. Its gas use would be different, and this data does not give that amount. A home that needs more than 97 gallons in the first hour would go beyond this rating. This text does not state the running cost because it depends on your state's average residential gas price. The page works it out from your ZIP, and the cost calculator for your own ZIP applies the same 235 therms to your rate. The installed-cost range has its own block, with its source and date. It is a modeled range, not a quote.
DOE CCD · 2026-09-19