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A. O. Smith GPVL-50 2**

A. O. Smith GPVL-50 2** is in the DOE listing as of Oct 26, 2026.

It has a labeled size of 50 gallons, a certified storage volume of 49 gallons, a certified UEF of 0.72, and a certified first-hour rating of 79 gallons of hot water.

Its advertised UEF of 0.72 from A. O. Smith matches the certified 0.72 (Read Oct 5, 2026).

  • Gas storage water heater
  • 4 listed models

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

Storage volume
49gallons
UEF
0.72Uniform energy factor
First-hour rating
79gallonsHot water in the first hour
See it among every gas storage model

Advertised and certified figures

A. O. Smith GPVL-50 2**: advertised and certified
A. O. Smith GPVL-50 2**: 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 0.72, certified 0.72. UEF: advertised 0.72, certified 0.72 (advertised up to). 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 0.72 Certified 0.72 UEF · advertised up to Advertised 0.72 Certified 0.72
FigureAdvertisedCertifiedAdvertiserRead
Size 50 gal, nominal size 49 gal storage volume A. O. Smith Read Oct 5, 2026
Size 49 gal 49 gal storage volume A. O. Smith Read Oct 5, 2026
UEF 0.72 0.72 A. O. Smith Read Oct 5, 2026
UEF up to 0.72 0.72 A. O. Smith Read Oct 5, 2026
First-hour rating 79 gal 79 gal A. O. Smith Read Oct 5, 2026

Certified figures by listed model

Model numberStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyDraw pattern
G6-PVS5040NV 2**490.727980%High
GPVL-50 2*1490.727980%High
HPVL 50 2**490.727980%High
HPVL 50 2*1490.727980%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 79 gallons in the test (its first-hour rating). That is 30 gallons more than its tank holds, since it reheats during the hour. Among 763 gas storage models, 344 have a higher first-hour rating. 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, 72% of the energy went to hot water, so its UEF is 0.72. Its test simulated a day of high hot water use (its draw pattern). Of 434 gas storage models with the same draw pattern, 71 have a higher UEF and 329 a lower one. For its type and draw pattern, the UEF runs from 0.61 to 0.90. When it reheats water in the test, 80% of the energy it uses ends up in the water.

All 4 of its model numbers carry the same certified figures. There are 6 more basic models with the same test figures. Each of the 6 other brands lists one of them.

It may qualify for 2 rebate programs in 2 states.

Also listed as

They carry every figure in the table above.

Rebates

ProgramStateStatusProgram page
Xcel Energy MINNESOTA RESIDENTIAL ENERGY EFFICIENCY PROGRAMS (gas storage, gas tankless) MN May qualify Its own page
Avista Home and small commercial: HVAC and water heating incentives (gas storage) WA May qualify Its own page

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.