A. O. SMITH E62-38T-045DV 1**
0.9 UEF DOE CCD · 2026-09-19No A–G grade: Fewer than 8 models share this heater type, fuel and draw pattern, too few for a fair A-G scale.
A short tank built to sit under a counter, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
If you are checking A. O. SMITH E62-38T-045DV 1** against its registry entry, it uses 3,609 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. This site computed the figure. No class median is given, because too few models share this class and draw pattern.
Energy use per year
3,609 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.
Not published: Class comparison
Too few models share this heater type and draw pattern for a fair class median, so no comparison is shown.
The yearly energy figure above stands on its own and does not depend on the class.
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
- 0.9 DOE CCD · 2026-09-19 Compared only with other models registered as a short tank built to sit under a counter at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium DOE CCD · 2026-09-19
- First Hour Rating how many gallons of hot water the unit can deliver in one hour, starting from a full tank
- 55 gal DOE CCD · 2026-09-19
- Rated Storage Volume the tank size in gallons
- 35 gal DOE CCD · 2026-09-19
What it costs to install
Not published: Installed cost range
This model's UEF lies outside the range NLR REMDB's cost model was fitted on, and the range is not stretched past it.
The annual energy figure on this page does not depend on this range and is unaffected.
Safety 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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Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
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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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Is a 30-gallon water heater enough?
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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Every A. O. SMITH model on file
What this brand files, by heater type.
UEF 0.9 Price it on your ZIP
The registry lists this A. O. SMITH E62-38T-045DV 1** as a short tank built to sit under a counter, with a rated volume of 35 gallons. Its UEF, the ratio of hot water delivered to energy used, is 0.9 under the federal test. The annual figure of 3,609 kWh is not a registry entry. This site computed it from that UEF and the DOE test's daily hot-water draw for the medium draw pattern. The fuel is electricity, and the source is DOE CCD, retrieved 2026-09-19. The figure applies only under those test conditions. How the annual cost is calculated sets out the steps behind the calculation.
The first hour rating, the gallons of hot water available in the first hour from a full tank, is 55 gallons for this model. That figure sits beside the 35 gallon rated volume and describes how much hot water the unit can deliver in a busy hour. The 3,609 kWh estimate suits a household whose daily use resembles the medium draw pattern. A household that draws more hot water than the test does will use more electricity than 3,609 kWh, and this page cannot say by how much. The water heater selector filters by fuel, space and size if you need to compare other units.
Running cost is not stated here because it depends on your own utility electricity tariff. Use the cost calculator rather than estimating from this page: it takes your ZIP and applies your local rate to the 3,609 kWh figure at the medium draw pattern. Two other values are not available. No class median or rank is shown, because too few models share this class and draw pattern for a fair comparison. No installed price range is published either, because this model's ratings lie outside the range the cost database's model was fitted on, and that range is not stretched. Both gaps are unknown, not estimated.
DOE CCD · 2026-09-19