LOCHINVAR GPVT-40 2**
0.7 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-40 2**, this gas tank heater uses 242 therms of natural gas a year. That figure belongs to the high draw pattern, the standard daily hot-water usage DOE tests against. It sits 18 therms below the 260 therms median of the 414 gas tank models at that draw pattern.
Energy use per year
242 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 90 of 414, lowest energy first.
Solid line: this model (242 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
- 0.7 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
- 87 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
$1,993–$3,665 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 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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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 0.7 · Grade E Price it on your ZIP
The registry does not print the 242 therms figure. This site computed it from two inputs. The first is the model's UEF, the ratio of hot water delivered to energy used, which is 0.7. The second is the DOE test's daily hot-water draw for the high draw pattern. Both come from the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. Among the 414 gas tank models at the high draw pattern, this model ranks 90th lowest in energy use. That places it in the lowest quarter of its class. The figure holds only at the test's daily draw. A household that draws more or less hot water will use a different amount, and that amount is not available here. The steps are set out in how this site calculates annual energy and cost.
The high draw pattern describes 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 87 gallons. Its rated volume is 38 gallons. A plumber or seller can check the 87 gallons against the household's busiest hour of hot-water use. A household that needs more than that in one hour needs more than this rating shows. The 242 therms figure also does not describe a smaller household at a lower draw pattern, and this page does not give a figure for that case. To compare other models, use the water heater selector by fuel, space and size. To match this unit's class, use the same-class replacement search by model number.
The running cost is not stated in this text. It depends on your state's average residential natural gas price. The page applies that price to the 242 therms figure once you enter your ZIP. The same 242 therms therefore gives a different yearly cost in each state. The 18 therms gap below the 260 therms class median converts to cost in the same way, so its value also depends on your gas price. You can run this in the cost calculator for your own ZIP. Its result carries the same condition as the energy figure: the high draw pattern at the federal test's daily draw. The installed price range sits in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote.
DOE CCD · 2026-09-19