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State GDVT-50 3**

State GDVT-50 3** is in the DOE listing as of Oct 26, 2026.

  • Gas storage water heater
  • 4 listed models

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

Its figures are also listed under A. O. Smith GDVT-50 3**.

Storage volume
48gallons
UEF
0.65Uniform energy factor
First-hour rating
82gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

State GDVT-50 3**: advertised and certified
State GDVT-50 3**: advertised and certified Size: advertised 50 gal, certified 48 gal (advertised nominal size, certified storage volume). Size: advertised 48 gal, certified 48 gal (certified storage volume). UEF: advertised 0.65, certified 0.65. UEF: advertised 0.65, certified 0.65 (advertised up to). Size · advertised nominal size, certified storage volume Advertised 50 gal Certified 48 gal Size · certified storage volume Advertised 48 gal Certified 48 gal UEF Advertised 0.65 Certified 0.65 UEF · advertised up to Advertised 0.65 Certified 0.65
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 48 gal storage volume State Read Oct 5, 2026
Size 48 gal 48 gal storage volume State Read Oct 5, 2026
UEF 0.65 0.65 State Read Oct 5, 2026
UEF up to 0.65 0.65 State Read Oct 5, 2026
First-hour rating 83 gal 82 gal State Read Oct 5, 2026
First-hour rating 82 gal 82 gal State Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GS6-50-HRDS 3*1480.658279%High
GS6-50-HRDSL 3*1480.658279%High
GS6-50-YRDS 3**480.658279%High
GS6-50-YRDSL 3**480.658279%High

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

It holds 48 gallons in the test, 2 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 82 gallons in the test (its first-hour rating). Its tank holds 48 gallons, so reheating adds 34 gallons during the first hour. In the first hour, 280 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 tests, 65% of the energy went to hot water, so its UEF is 0.65. In the test, daily hot water use was set to high (its draw pattern). Of 434 gas storage models with the same draw pattern, 225 have a higher UEF. For its type and draw pattern, the UEF runs from 0.61 to 0.90. When it reheats water in the test, 79% of the energy it uses ends up in the water.

It is sold under 4 model numbers in all. Its test figures match those of 3 other basic models. The A. O. Smith, American, and Lochinvar brands list one or more of them. For the full group, see the A. O. Smith GDVT-50 3**.

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.