KENDRAJA KEN -DJ18-01
0.94 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.
An electric tankless unit, medium draw pattern (a typical three- or four-person household, about 55 gallons on a busy morning).
To check this listing: KENDRAJA KEN -DJ18-01 uses 3,456 kWh of electricity a year at the medium draw pattern, the standard daily hot-water usage DOE tests against. This site computed the figure from the registry's UEF, the ratio of hot water delivered to energy used. No class median is available, so no rank is shown.
Energy use per year
3,456 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
- 0.94 DOE CCD · 2026-09-19 Compared only with other models registered as an electric tankless unit at the medium draw pattern.
- Draw Pattern the standard daily usage profile DOE tests the unit against
- Medium DOE CCD · 2026-09-19
- Maximum Gallons Per Minute how many gallons a minute it can heat while running continuously
- 1.8 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,300–$1,790 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.
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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.
UEF 0.94 Price it on your ZIP
The registry lists this unit as an electric tankless heater with a UEF of 0.94. The annual figure is not a registry value: this site calculated 3,456 kWh from that UEF and the DOE test's daily hot-water draw for the medium draw pattern. The number therefore holds only for that draw pattern, with electricity as the fuel. The source is the DOE CCD, retrieved 2026-09-19. A registry change after that date would not appear here. The calculation steps are set out in the methodology for water heater costs, so a plumber or seller can repeat them from the listed UEF.
The registry gives the maximum flow rate in gallons per minute as 1.8. That is a ceiling on delivery. The data on this page does not show how many fixtures it can serve at once, or at what incoming water temperature. The unit suits a reader whose household hot-water use resembles the medium draw pattern, because 3,456 kWh was computed for that usage. It does not describe a household with much higher or lower daily use. Energy figures for other draw patterns are not available for this model. To narrow options by fuel, space and size, use the water heater selector.
The running cost is not stated in the text, because it depends on your own electricity rate. Multiply 3,456 kWh by your rate per kilowatt-hour to get a yearly figure for the medium draw pattern. The cost calculator does this from your ZIP code. Its installed-cost block is a modeled range, not a quote, and this text does not restate it. No class median exists for this model's class and draw pattern, so the page gives no rank and no difference from a median. For a same-class alternative, search by model number starting from KEN -DJ18-01.
DOE CCD · 2026-09-19