LOCHINVAR GCR-40 2**
0.64 UEF DOE CCD · 2026-09-19Grade G: 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 GCR-40 2**, this gas tank water heater uses 264 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 4 therms above the 260 therms median of its class.
Energy use per year
264 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 above the median of 260 therms for the 414 models registered in the same heater type and draw pattern; it ranks 236 of 414, lowest energy first.
Solid line: this model (264 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
- 0.64 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
- 80 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
$1,643–$2,763 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
-
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.
-
Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
-
What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
-
Is a 40-gallon water heater enough?
Answered from what models in this size actually file.
-
Water heaters
Every model on file with the Department of Energy, by heater type.
-
All gas tank water heaters
Gas-fired storage tanks, every size and draw pattern on file.
-
Every LOCHINVAR model on file
What this brand files, by heater type.
UEF 0.64 · Grade G Price it on your ZIP
The 264 therms figure is computed by this site, not published by the registry. It combines the model'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. This model's UEF is 0.64. The inputs come from the DOE Compliance Certification Database, retrieved 2026-09-19. The comparison group is the 414 models registered as a gas tank at the high draw pattern. Ordered from lowest energy use, this model ranks 236th of 414. That places it in the second-highest quarter of its class for energy use. The figure holds only at the test's daily draw, so a home drawing a different volume will see a different total. The page on how this site calculates annual energy and cost sets out each step.
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 80 gallons. Its rated volume is 38 gallons. A home whose busiest hour needs more than 80 gallons asks for more than this rating covers. A smaller household with lighter use is not described by the 264 therms figure, because that figure assumes the high pattern's daily draw. Energy figures for this model at other draw patterns are not available in this data. Readers comparing tank options can use the water heater selector by fuel, space and size.
Running cost is not stated in this text. It depends on the reader's state average residential gas price, so the page computes it from the reader's ZIP. At 264 therms a year, readers in different states will see different costs for the same model. The cost calculator for your own ZIP applies that local rate to this model's figure. The 4 therms gap above the class median also changes in cost terms with the local gas price, and this text gives no cost for it. The installed price range appears in its own block on this page, with its source and date. It is a modeled installed-cost range, not a quote, and this text does not restate its figures.
DOE CCD · 2026-09-19