DoesTheMath

RELIANCE WATER HEATERS GCRL-40 4**

0.58 UEF DOE CCD · 2026-09-19
G

Grade 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 verifying this listing, the unit uses 191 therms of natural gas a year. That figure is for the medium draw pattern, the standard daily hot-water usage DOE tests against. It is 6 therms above the class median of 185 therms, and ranks 231st lowest of 288 gas tank models.


Energy use per year

191 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 231 of 288, lowest energy first.

This model: 191 therms

Solid line: this model (191 therms). Dashed line: the class median.

Min 148 therms Median 185 therms Max 194 therms

DOE CCD · 2026-09-19

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What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year at your state’s average natural gas price.


What the registry files

UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
0.58 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
67 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

$1,293–$1,862 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) · 2026-04-01

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Safety 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 · 2026-09-24

What these figures mean

RELIANCE WATER HEATERS model GCRL-40 4** has a UEF, the ratio of hot water delivered to energy used, of 0.58. This site computed 191 therms a year from that UEF and the DOE test's daily hot-water draw for the medium draw pattern. The registry does not list an annual figure, so this one is computed by the site, not the registry. The source data is DOE CCD, retrieved 2026-09-19. The result is 6 therms above the class median of 185 therms. Its rank of 231st lowest of 288 places it in the highest quarter of its class for energy use. The method is explained in how the annual cost is calculated.

The registry lists a rated volume of 38 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 67 gallons. Both figures are tied to the medium draw pattern and do not describe other usage. The energy figure of 191 therms fits a household whose use resembles that pattern. It fits less well a household whose morning use differs from the pattern, because the annual figure would then change. This page does not estimate that change. A reader who wants a model below the class median of 185 therms can start with the water heater selector. It filters by fuel, space and size.

The running cost is not stated in this text. It depends on the state average residential gas price, which differs by location. Multiplying 191 therms by that price gives the yearly gas cost at the medium draw pattern. The cost calculator for your own ZIP applies your state's price for you. Because this model is 6 therms above the class median of 185 therms, its yearly cost is higher than the median unit's. The gap equals 6 therms multiplied by the same price. Actual use differs from the test draw, so real bills can differ. To compare same-class units, enter GCRL-40 4** in the replacement finder. The installed price range has its own block with source and date, and is not repeated here.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 0.58 · Grade G Price it on your ZIP