A. O. SMITH UPVA-110E 1**
0.93 UEF DOE CCD · 2026-09-19Grade F: where this UEF sits among the 271 models in its class, lowest (G) to highest (A). A position, not an official label. How the grade is set
An electric tankless unit, very small draw pattern (small units - a single bathroom, or a point-of-use heater under a sink).
Checking the A. O. SMITH UPVA-110E 1**? At the very small draw pattern, the standard daily hot-water usage DOE tests against, this electric tankless unit uses 635 kWh of electricity a year. That is 20 kWh above the class median of 615 kWh among 271 registered models.
Energy use per year
635 kWh a year
Computed by this site from the registry's UEF and the federal test's daily hot-water draw for this draw pattern. What it costs depends on the electricity rate where you live.
That is above the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 218 of 271, lowest energy first.
Solid line: this model (635 kWh). Dashed line: the class median.
Min 562 kWh Median 615 kWh Max 649 kWh
What it costs to run where you live
What the registry files
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.93 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tankless unit at the very small draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Very small DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 1 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,297–$1,766 installed
Not a quote — a modeled range of what installers have charged for this class of unit; your price will vary with labor rates, access, and local code requirements.
Escalation indexes: equipment (BLS PPI) latest available: August 2026; labor (BLS ECI) latest available: April 2026 to June 2026.
NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01Safety record
No CPSC recall names this model.
Checked against the CPSC recall database. CPSC does not publish a model-level match for this product category, so this list is curated by hand from the manufacturer's recall filings.
CPSC · 2026-09-24What these figures mean
How this compares
The closest models in the same class — same fuel, type and draw pattern.
Keep going
How every figure on this page is calculated
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Find what replaces your water heater
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What a water heater costs to run
Prices a unit's efficiency against your own utility's filed tariff for your ZIP code.
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How to size a tankless water heater by GPM
Answered from what models in this size actually file.
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Water heaters
Every model on file with the Department of Energy, by heater type.
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All electric tankless water heaters
Electric instantaneous units, sized by flow rate rather than tank gallons.
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Every A. O. SMITH model on file
What this brand files, by heater type.
UEF 0.93 · Grade F Price it on your ZIP
The figure of 635 kWh is not a registry entry. This site computed it from the registry's UEF, the ratio of hot water delivered to energy used, and the DOE test's daily hot-water draw for this draw pattern. The unit's UEF is 0.93. The source is DOE CCD, retrieved 2026-09-19. Among the 271 electric tankless models at this draw pattern, it ranks 218th lowest for energy use. That places it in the highest quarter of its class for energy use, with the median at 615 kWh. The method behind the calculation is documented separately.
The registry lists a maximum flow rate in gallons per minute of 1. The draw pattern here is very small, which covers small units: a single bathroom, or a point-of-use heater under a sink. The 635 kWh applies only under that condition. It does not describe a household with a larger daily draw, and an annual figure for other draw patterns is not available in this data. Readers who want to compare fuel, space and size can use the water heater selector. To look for a unit in the same class, the replacement lookup by model number starts from UPVA-110E 1**.
The running cost of 635 kWh a year depends on the electricity rate the reader pays, and that rate is not in this data. No cost is stated in the text, and none is estimated. The cost calculator takes a ZIP code and applies the local electricity tariff to this model's energy use. The modeled installed-cost range appears in its own block on the page, with its source and date; it is a modeled range, not a quote, and this text does not restate it. Actual use in a home with a different hot-water draw is unknown, because the figure retrieved on 2026-09-19 reflects only the federal test's conditions.
DOE CCD · 2026-09-19