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American GURT-50RL 4**

American GURT-50RL 4** is in the DOE listing as of Oct 26, 2026.

  • Gas storage water heater
  • 1 listed model

Not listed as ENERGY STAR certified on Oct 26, 2026.

Its figures are also listed under A. O. Smith GURT-50RL 4**.

Storage volume
49gallons
UEF
0.63Uniform energy factor
First-hour rating
92gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

American GURT-50RL 4**: advertised and certified
American GURT-50RL 4**: advertised and certified Size: advertised 50 gal, certified 49 gal (advertised nominal size, certified storage volume). Size: advertised 49 gal, certified 49 gal (certified storage volume). UEF: advertised 0.63, certified 0.63. First-hour rating: advertised 92 gal, certified 92 gal. Size · advertised nominal size, certified storage volume Advertised 50 gal Certified 49 gal Size · certified storage volume Advertised 49 gal Certified 49 gal UEF Advertised 0.63 Certified 0.63 First-hour rating Advertised 92 gal Certified 92 gal
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 49 gal storage volume American Read Oct 5, 2026
Size 49 gal 49 gal storage volume American Read Oct 5, 2026
UEF 0.63 0.63 American Read Oct 5, 2026
First-hour rating 92 gal 92 gal American Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GU62 50T50R 4**490.639277%High

UEF is the uniform energy factor. A dash means the model has no such figure.

It holds 49 gallons in the test, 1 gallon less than its 50-gallon sold size. Over one hour from a full tank, it gave 92 gallons in the test (its first-hour rating). That is 43 gallons more than its tank holds, since it reheats during the hour. In the first hour, 116 of the 763 gas storage models give more hot water. The median gas storage model gives 78 gallons in the first hour of the test.

It was not listed as ENERGY STAR certified on Oct 26, 2026. In the test, 37% of its energy does not reach the hot water (UEF 0.63). Its test ran at the high level of daily hot water use. Among 434 gas storage models on its draw pattern, 339 have a higher UEF. A UEF of 0.66 is the median for its type and draw pattern. Of the energy spent to reheat water, 77% goes into it (its recovery efficiency).

Its test figures match those of 3 other basic models. Of those, one or more are under the A. O. Smith, Lochinvar, and State brands. For the full group, see the A. O. Smith GURT-50RL 4** page.

Also listed as

They carry every figure in the table above.

Updated Oct 26, 2026 · Methodology

Not covered

  • Changes to an advertised figure after the date beside it.