EEMAX SPEX35T
0.97 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).
If you are checking the EEMAX SPEX35T, it uses 609 kWh of electricity a year at the very small draw pattern, the standard daily hot-water usage DOE tests against. That is 6 kWh below the class median of 615 kWh across 271 models.
Energy use per year
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.
That is below the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 37 of 271, lowest energy first.
Solid line: this model (609 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
- 0.97 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
$1,309–$1,862 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 0.97 · Grade E Price it on your ZIP
The registry lists a UEF, the ratio of hot water delivered to energy used, of 0.97 for this unit. The registry does not publish annual energy for it. This site computed 609 kWh from that UEF and the DOE test's daily hot-water draw for the very small draw pattern, so the figure holds only under that test condition. The source is DOE CCD, retrieved 2026-09-19. Among the 271 electric tankless models registered at the same draw pattern, this unit ranks 37th lowest in energy use, which places it in the lowest quarter of its class. The class median is 615 kWh, and this unit sits 6 kWh below it.
The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The EEMAX SPEX35T is an electric tankless unit with a maximum flow rate in gallons per minute of 0.3. Its 609 kWh applies to that light daily use only. Figures for heavier draw patterns are not available for this model, and this page does not estimate them. A load larger than a single bathroom or sink is outside what this figure describes. To compare by fuel, space and size, use the water heater selector. To find a unit in the same class, look up a replacement by model number.
The running cost is not written here because it depends on your own utility electricity tariff. Multiply the 609 kWh by your rate per kilowatt-hour to get a yearly cost at the very small draw pattern; the cost calculator does this from your ZIP code. The calculation method explains how the annual cost is worked out. A modeled installed-cost range appears in its own block on this page, with its source and date. It is a modeled range, not a quote. Because the unit sits 6 kWh below the class median of 615 kWh, its cost at any given rate differs from a median unit's by that same 6 kWh of electricity.
DOE CCD · 2026-09-19