Hot Water List

State UPVA-110Y 1**

State UPVA-110Y 1** is in the DOE listing as of Oct 19, 2026.

  • Electric tankless water heater
  • 1 listed model

ENERGY STAR certification does not cover this type of water heater.

Its figures are also listed under A. O. Smith UPVA-110Y 1**.

Certified and advertised figures

Flow at a 67°F rise
1.0gallons per minuteCertified
Advertised flow
1.0gallons per minuteState, at a 67°F rise
UEF
0.94Uniform energy factor

Flow where you live

Colder incoming water needs a bigger rise, so the heater gives less flow.

Cold water
Cold water must be at least 10°F colder than the hot water setting.
Flow estimate
The estimate uses the lowest certified flow among the listed models. It is about 1.0 gal/min at a 70°F rise.

Flow limits

  • The estimate excludes the flow needed to turn the heater on, heat lost in pipes, and installation.
  • Cold water from a well or long pipe run can differ from the temperature you enter.
  • Without a stated flow limit, estimates for warmer water may exceed the heater’s actual flow.

Advertised and certified figures

State UPVA-110Y 1**: advertised and certified
State UPVA-110Y 1**: advertised and certified UEF: advertised 0.93, certified 0.94. Flow: advertised 1.0 gal/min, certified 1.0 gal/min (advertised at a 67°F rise, certified at a 67°F rise). UEF Advertised 0.93 Certified 0.94 Flow · advertised at a 67°F rise, certified at a 67°F rise Advertised 1.0 gal/min Certified 1.0 gal/min
State UPVA-110Y 1**: advertised figures, where and when read
FigureAdvertisedCertifiedAdvertiserRead
UEF 0.93 0.94 State Read Oct 4, 2026
Flow 1.0 gal/min at a 67°F rise 1.0 gal/min at a 67°F rise State Read Oct 4, 2026

See how advertised flow compares across tankless models

Certified figures by listed model

State UPVA-110Y 1**: certified figures by listed model
Model numberUEFFlow at a 67°F rise (gal/min)Recovery efficiencyDraw pattern
UPVS-110Y 1**0.941.098%Very small

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

At a 67°F rise, its flow in the test is 1.0 gallons per minute. The median flow among electric tankless models is 0.7 gallons per minute. Among 337 electric tankless models, 91 give more flow at a 67°F rise.

In the test, 6% of its energy does not reach the hot water (UEF 0.94). The daily hot water use in the test, called its draw pattern, was very small. Its UEF is lower than that of 187 of the 272 electric tankless models with its draw pattern. A UEF of 0.96 is the median for its type and draw pattern. While it heats water, 98% of the energy used goes into the water (its recovery efficiency).

All of its test figures are shared by one other basic model. That one is listed under the A. O. Smith brand. For the full group, see the A. O. Smith UPVA-110Y 1** page.

Also listed as

They carry every figure in the table above.

Updated Oct 19, 2026 · Methodology

Not covered

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