Hot Water List

State GPVNT-40 1**

State GPVNT-40 1** 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 GPVNT-40 1**.

Certified figures

Storage volume
38gallons
UEF
0.73Uniform energy factor
First-hour rating
91gallonsHot water in the first hour

Advertised and certified figures

State GPVNT-40 1**: advertised and certified
State GPVNT-40 1**: 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 0.72, certified 0.73. UEF: advertised 0.72, certified 0.73 (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 0.72 Certified 0.73 UEF · advertised up to Advertised 0.72 Certified 0.73
State GPVNT-40 1**: advertised figures, where and when read
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 0.72 0.73 State Read Oct 5, 2026
UEF up to 0.72 0.73 State Read Oct 5, 2026
First-hour rating 91 gal 91 gal State Read Oct 5, 2026

Certified figures by listed model

State GPVNT-40 1**: certified figures by listed model
Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
GS6-40-UBPVT 1**380.739178%High

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. It delivers 91 gallons of hot water in the test's first hour. Reheating lets it give 53 gallons beyond the 38 gallons in its tank. In the first hour, 120 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, 27% of its energy does not reach the hot water (UEF 0.73). Its test simulated a day of high hot water use (its draw pattern). Of 434 gas storage models with the same draw pattern, 54 have a higher UEF and 363 a lower one. For its type and draw pattern, the median UEF is 0.66. The water took in 78% of the energy used to reheat it (its recovery efficiency).

There are 4 more basic models with the same test figures. Each of the 4 other brands lists one of them. You can find the whole group on the page for the A. O. Smith GPVNT-40 1**.

It may qualify for 2 rebate programs in 2 states.

Also listed as

They carry every figure in the table above.

Rebates

Programs change their terms. Check the program's own page before you buy.

Updated Oct 26, 2026 · Methodology

Not covered

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