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State GCRH-40 4**

State GCRH-40 4** is in the DOE listing as of Oct 26, 2026.

  • Gas storage water heater
  • 2 listed models

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

Its figures are also listed under A. O. Smith GCRH-40 4**.

Storage volume
38gallons
UEF
0.59Uniform energy factor
First-hour rating
65gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

State GCRH-40 4**: advertised and certified
State GCRH-40 4**: advertised and certified Size: advertised 40 gal, certified 38 gal (advertised nominal size, certified storage volume). Size: advertised 38 gal, certified 38 gal (certified storage volume). UEF: advertised 0.66, certified 0.59. UEF: advertised 0.61, certified 0.59 (advertised up to). Size · advertised nominal size, certified storage volume Advertised 40 gal Certified 38 gal Size · certified storage volume Advertised 38 gal Certified 38 gal UEF Advertised 0.66 Certified 0.59 UEF · advertised up to Advertised 0.61 Certified 0.59
FigureAdvertisedCertifiedAdvertiserRead
Size 40 gal, nominal size 38 gal storage volume State Read Oct 5, 2026
Size 38 gal 38 gal storage volume State Read Oct 5, 2026
UEF 0.66 0.59 State Read Oct 5, 2026
UEF up to 0.61 0.59 State Read Oct 5, 2026
First-hour rating 80 gal 65 gal State Read Oct 5, 2026
First-hour rating 65 gal 65 gal State Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GS6-40-OCT 4**380.596580%Medium
GSX-40-OCT 4**380.596580%Medium

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

It holds 38 gallons in the test, 2 gallons less than its 40-gallon sold size. Starting full, it gives 65 gallons of hot water in its first hour of use. That is 27 gallons more than its tank holds, since it reheats during the hour. Of 763 gas storage models, 600 give more hot water in the first hour. 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, 59% of the energy went to hot water, so its UEF is 0.59. The daily hot water use in the test, called its draw pattern, was medium. Of 288 gas storage models with the same draw pattern, 185 have a higher UEF and 58 a lower one. On its draw pattern, the median gas storage UEF is 0.60. The water took in 80% of the energy used to reheat it (its recovery efficiency).

Its 2 model numbers are GS6-40-OCT 4** and GSX-40-OCT 4**. All of its test figures are shared by 5 other basic models. Each of them is listed under a different brand. You can find the whole group on the page for the A. O. Smith GCRH-40 4**.

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.