EEMAX SPEX3512T
0.96 UEF DOE CCD · 2026-09-19Grade E: 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 EEMAX SPEX3512T? At the very small draw pattern, the standard daily hot-water usage DOE tests against, this electric tankless unit uses 615 kWh a year. That equals the class median of 615 kWh, a difference of 0 kWh, among 271 registered models. Its rank is 77th lowest for energy use.
Energy use per year
615 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 equal to the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 77 of 271, lowest energy first.
Solid line: this model (615 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
- 0.96 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
- 0.3 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,306–$1,838 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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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 EEMAX model on file
What this brand files, by heater type.
UEF 0.96 · Grade E Price it on your ZIP
The figure of 615 kWh was computed by this site, not by the registry. The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.96. This site applies that value to the daily hot-water draw DOE assigns to the very small draw pattern. The source is the DOE CCD, retrieved 2026-09-19. The result applies only to that test draw. A household that draws more or less hot water than the federal test will use a different amount. The class median is 615 kWh, so this unit differs from it by 0 kWh. Its rank of 77th lowest of 271 places it in the second-lowest quarter of its class for energy use.
The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The maximum flow rate in gallons per minute for this model is 0.3. For a load of that size, 615 kWh is the figure to compare with the class median of 615 kWh. It does not describe a household that draws more hot water than the federal test, and it does not suit a use that needs more than 0.3 gallons per minute. An energy figure for other draw patterns is not available on this page. To compare by fuel, space and size, use the water heater selector. To look for a same-class alternative, find a replacement by model number.
The running cost is not written in this text because it depends on your own utility electricity rate. Both this unit and the class median use 615 kWh and 615 kWh respectively, so on any single rate the two costs are the same. The cost calculator applies the rate for your ZIP to the 615 kWh figure. The methodology page explains how the annual cost is calculated. The modeled installed-cost range appears in its own block on this page with its source and date, and it is not repeated here. The energy figure reflects the DOE CCD as retrieved on 2026-09-19, and this page has no later data.
DOE CCD · 2026-09-19