VEVOR R1T-80
635 kWh a year DOE CCD (opens in a new tab) (the U.S. Department of Energy’s Compliance Certification Database) · 2026-10-25UEF 0.93 filed efficiency; the yearly figure is computed from it
Grade G: where this UEF sits among the 273 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).
If you are checking the VEVOR R1T-80, an electric tankless unit, it uses 635 kWh of electricity a year. That figure is for the very small draw pattern, the standard daily hot-water usage DOE tests against. It sits 20 kWh above the 615 kWh median for its class, ranking 219th lowest energy use of 273.
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.
This model is in the highest quarter of its class for energy use. That is above the median of 615 kWh for the 273 models registered in the same heater type and draw pattern; it ranks 219 of 273, lowest energy first.
This model 635 kWh
Median 615 kWh
Min 425 kWh Max 649 kWh
What it costs to run where you live
What the registry files
From DOE CCD · 2026-10-25
- UEF (Uniform Energy Factor) how much hot water you get for each unit of energy the heater uses
- 0.93 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
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 0.8 gal/min
Installed cost and service life
$1,300–$1,773 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.
Brought to current prices with Bureau of Labor Statistics indexes: equipment to May 2026, installation labor to April 2026–June 2026.
NLR REMDB (BLS PPI/ECI escalated) · 2026-04-01Service life: DOE’s cost database assumes 20 years for electric tankless units. That is a class assumption, not this model’s rating or a warranty — no registry publishes either.
NLR REMDB v4.0.0 · 2026-09-07Safety 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 — that have their own comparison page.
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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Clothes washers
What a washer uses in a year, including the hot water it draws.
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All electric tankless water heaters
Electric instantaneous units, sized by flow rate rather than tank gallons.
635 kWh/yr Grade G Cost on your ZIP
This site calculated the 635 kWh figure; it is not taken directly from the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw. That draw is the one set for the very small draw pattern. For this model the UEF is 0.93. The registry data come from DOE's Compliance Certification Database, retrieved 2026-10-25. The figure describes the unit at the federal test's daily draw, not in a measured household. A home that draws more or less hot water than the test day will use a different amount of electricity. The registry does not show how far real use departs from 635 kWh. The steps are set out in how the annual cost is calculated.
Read the rest
The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The R1T-80 is compared only with the 273 models registered as an electric tankless unit at that draw pattern. Its 635 kWh sits 20 kWh above the class median of 615 kWh. At 219th lowest energy use of 273, it is in the highest quarter of its class for energy use. Its maximum flow rate in gallons per minute is 0.8. The energy figure does not describe use outside this draw pattern, such as supplying a whole house. No data for that case is available here. To check same-class models with lower energy use, find a same-class replacement by model number.
This text does not state the running cost. It depends on your own utility electricity tariff, so the page calculates it from your ZIP. This model uses 20 kWh a year more than its class median. At any given tariff, its cost will therefore be above the cost of a model at the class median. How far above depends on your rate, and this page does not estimate it. Use the cost calculator on your own ZIP to see the figure for your tariff. The installed price range on this page appears in a separate block with its source and date. It is a modeled installed-cost range, not a quote.