RELIANCE WATER HEATERS GCRT-50 4**
0.61 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 this model's figures, the RELIANCE WATER HEATERS GCRT-50 4** gas tank uses 277 therms a year at the high draw pattern. The draw pattern, the standard daily hot-water usage DOE tests against, sets that figure. It sits 17 therms above its class median of 260 therms, placing it 400th lowest energy use of 414.
Energy use per year
277 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 400 of 414, lowest energy first.
Solid line: this model (277 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
- 0.61 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
- 89 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
$1,615–$2,681 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 RELIANCE WATER HEATERS model on file
What this brand files, by heater type.
UEF 0.61 · Grade G Price it on your ZIP
The registry does not print the 277 therms figure. This site calculates it from the registry's UEF, the ratio of hot water delivered to energy used. The other input is the DOE test's daily hot-water draw for the high draw pattern. For this model the UEF is 0.61. It comes from the DOE Compliance Certification Database, retrieved 2026-09-19. The result holds only at that test draw. A household using more or less hot water will use a different amount of natural gas, and this page does not know that amount. The steps are set out in how the annual energy and cost are calculated. If a label or listing shows a different yearly figure, check whether it uses the same draw pattern and fuel before comparing.
The high draw pattern stands for a larger household, or one where showers and laundry overlap. This model was tested at that pattern, with a rated volume of 48 gallons. Its first hour rating, the gallons of hot water available in the first hour from a full tank, is 89 gallons. A plumber or homeowner can check those figures against a home's peak hot-water demand. Whether they match a particular home depends on that home's actual use, which the registry does not record. The registry also does not say how the tank performs outside the federal test conditions, so that information is not available here. To compare capacity and fuel across other models, the water heater selector by fuel, space and size lists them side by side.
The class comparison covers the 414 models registered as a gas tank at the high draw pattern. Within that group this model ranks 400th lowest energy use, which puts it in the highest quarter of its class for energy use. A reader who wants lower gas use at the same draw pattern can search for a same-class replacement by model number. This text does not state the running cost. It depends on your state's average residential gas price, so the page calculates it from your ZIP in the cost calculator for your own ZIP. The installed price range on this page appears in its own block with its source and date. It is a modelled installed-cost range, not a quote.
DOE CCD · 2026-09-19