Rheem SPEX2412T
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).
If you are checking the yearly energy use of the Rheem SPEX2412T, this site computes 615 kWh of electricity a year. That figure belongs to the very small draw pattern, the standard daily hot-water usage DOE tests against. It equals the class median of 615 kWh, a difference of 0 kWh, and ranks 77th lowest of 271 models.
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
- 0.2 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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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 Rheem model on file
What this brand files, by heater type.
UEF 0.96 · Grade E Price it on your ZIP
The figure comes from the registry's UEF, the ratio of hot water delivered to energy used, which is 0.96 for this unit. This site combines that UEF with the DOE test's daily hot-water draw for the very small pattern. The result is 615 kWh of electricity a year. The registry does not publish this number itself. It is a computed figure, not a metered one. The data come from DOE CCD, retrieved 2026-09-19. The figure holds only at that test draw. Real use in your building will differ, and this page does not estimate it. The method behind the annual calculation is documented separately.
The very small draw pattern covers small units, such as a single bathroom or a point-of-use heater under a sink. This model's maximum flow rate in gallons per minute is 0.2. The 615 kWh figure applies to loads of that size. A unit serving several fixtures at once falls outside the pattern tested. Inlet water temperature and the temperature rise you need are not in the data used here, so this page does not estimate them. The registry data do not say whether this model suits a given building. A selector by fuel, space and size lets you compare units against the space and load you have.
The class is the 271 models registered as an electric tankless unit at the very small draw pattern. This unit's use equals the class median. The class median is 615 kWh, and the difference from it is 0 kWh. Its rank is 77th lowest energy use of 271, which is in the second-lowest quarter of its class. Running cost depends on your own electricity rate, so no cost figure is written here. Multiplying 615 kWh by your rate gives a yearly cost at the test draw. The cost calculator for your own ZIP does this with your utility tariff. To compare a same-class unit, find a replacement by model number starting from SPEX2412T.
DOE CCD · 2026-09-19