LOCHINVAR GCRH-40 4**
0.59 UEF DOE CCD · 2026-09-19Grade G: where this UEF sits among the 288 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
A gas tank, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking the LOCHINVAR GCRH-40 4**, a gas tank water heater, this site computes 188 therms of natural gas a year. That figure holds at the medium draw pattern, the standard daily hot-water usage DOE tests against. It sits 3 therms above the 185 therms median of the 288 gas tank models registered at that draw pattern.
Energy use per year
188 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 185 therms for the 288 models registered in the same heater type and draw pattern; it ranks 186 of 288, lowest energy first.
Solid line: this model (188 therms). Dashed line: the class median.
Min 148 therms Median 185 therms Max 194 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
- 0.59 DOE CCD · 2026-09-19 Compared only with other models registered as a gas tank at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium 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
- 65 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
$1,351–$2,012 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 0.59 · Grade G Price it on your ZIP
The 188 therms figure does not appear in the DOE registry. This site computed it from two inputs. The first is the model's UEF, the ratio of hot water delivered to energy used, listed as 0.59. The second is the daily hot-water draw the federal test sets for the medium pattern. DOE uses that pattern for a typical household with a busy morning peak. The figure therefore holds only at that test draw. A home that uses more hot water each day would have a higher annual figure, and a lighter-use home a lower one. The registry data comes from the DOE Compliance Certification Database, retrieved on 2026-09-19. The page on how the annual energy and cost figures are calculated sets out the same inputs step by step.
Among the 288 gas tank models at the medium draw pattern, the LOCHINVAR GCRH-40 4** ranks 186th for lowest energy use. That places it in the second-highest quarter of its class for energy use. Because it sits above the class median, most models in the class use less gas at the test draw. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 65 gallons. Its rated volume is 38 gallons. A plumber or seller checking a like-for-like swap can set those two figures against the old unit's label. A reader who wants lower gas use at the same draw pattern can list other models in the class with the same-class replacement search by model number.
This text does not state a running cost for the 188 therms a year. That cost depends on the reader's state average residential natural gas price, so the page computes it from the reader's ZIP. The water heater cost calculator for your own ZIP applies that price to the same test-draw figure. The 3 therms gap to the 185 therms class median converts the same way, and its cost is also not stated here. The installed price range sits in its own block with its source and date. It is a modeled range, not a quote. This model's energy use in any specific home is unknown, because the registry reports results only at the federal test conditions.
DOE CCD · 2026-09-19