Rheem SPEX012240T
0.95 UEF DOE CCD · 2026-09-19Grade F: 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 this unit's energy figure: Rheem SPEX012240T uses 622 kWh a year at the very small draw pattern, the standard daily hot-water usage DOE tests against. That is 7 kWh above the class median of 615 kWh, and it ranks 152nd lowest of 271 models.
Energy use per year
622 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 above the median of 615 kWh for the 271 models registered in the same heater type and draw pattern; it ranks 152 of 271, lowest energy first.
Solid line: this model (622 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
- 0.95 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
- 1.1 gal/min DOE CCD · 2026-09-19
What it costs to install
$1,303–$1,814 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 Rheem model on file
What this brand files, by heater type.
UEF 0.95 · Grade F Price it on your ZIP
The registry lists Rheem SPEX012240T as an electric tankless unit with a UEF, the ratio of hot water delivered to energy used, of 0.95. The annual figure of 622 kWh is not in the registry. This site computed it from that UEF and the daily hot-water draw in the DOE test for the very small draw pattern. The source is DOE CCD, retrieved 2026-09-19. The figure applies only under that condition, with electricity as the fuel. A household that draws a different volume of hot water will use a different amount of energy. The calculation is set out in how the annual cost is calculated, so each step can be checked.
This model is compared with the 271 models registered as an electric tankless unit at the very small draw pattern. It uses 7 kWh more than the class median of 615 kWh. It ranks 152nd lowest energy use of 271, which is the second-highest quarter of its class for energy use. The data here does not show whether a gap of 7 kWh affects a given home. The very small draw pattern describes small units: a single bathroom, or a point-of-use heater under a sink. The maximum flow rate in gallons per minute is 1.1. A larger demand than the very small draw pattern is not covered by 622 kWh, and this page has no energy result for it.
The running cost depends on the electricity tariff the reader pays, and the registry does not contain a tariff, so no cost is written in this text. To turn 622 kWh into a yearly cost, multiply it by the rate on your own bill, or enter your ZIP in the cost calculator, which applies your utility's rate to this figure. A modeled installed-cost range is shown in its own block on this page with its source and date. It is a modeled range, not a quote, and it is not repeated here. To look at other models in the same class as SPEX012240T, find a same-class replacement by model number.
DOE CCD · 2026-09-19