RELIANCE WATER HEATERS 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 this unit: the RELIANCE WATER HEATERS UPVA-110E 1** uses 635 kWh of electricity a year. The figure applies to the very small draw pattern, the standard daily hot-water usage DOE tests against. It is 20 kWh above the class median of 615 kWh, and ranks 218th lowest of 271 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
Enter the model number off your old unit and see what is on file today, with the yearly cost difference.
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Find a water heater that fits
Three questions — fuel, hot water need, install space — narrow every model on file to the ones that fit.
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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 RELIANCE WATER HEATERS 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 a computed value, not a registry entry. This site derived it from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.93 for this model, and from the DOE test's daily hot-water draw for the very small draw pattern. The fuel is electricity, and the source is the DOE CCD, retrieved 2026-09-19. The steps are described in how the annual figures are calculated. The result sits 20 kWh above the class median of 615 kWh. Among the 271 models registered as an electric tankless unit at this draw pattern, it ranks 218th lowest in energy use. That places it in the highest quarter of its class for energy use.
The figure belongs to the very small draw pattern, which covers small units such as a bathroom or a point-of-use heater under a sink. The registry lists a maximum flow rate in gallons per minute of 1 for this model. The figure does not describe a whole-house load, and this page has no energy value for any other draw pattern; that value is not available. A reader with a larger load can filter units by fuel, space and size in the water heater selector. A reader who needs a same-class alternative can find a replacement by model number and compare its energy use with the class median of 615 kWh shown here.
The running cost is not stated here because it depends on your own electricity rate. To check it, multiply 635 kWh, the figure at the very small draw pattern, by your price per kilowatt-hour. The cost calculator on your own ZIP does this for you. The same multiplication applies to the 20 kWh gap from the class median. At any rate above zero, this model costs more to run than a median unit of its class at this draw pattern, by that difference in energy. Actual use in a home may differ from the test's daily draw, and that difference is not available in the registry data. The installed price range appears in its own block on this page, with its source and date, as a modeled range and not a quote.
DOE CCD · 2026-09-19