Rheem AM012240T
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 the Rheem AM012240T, it uses 622 kWh of electricity a year for 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, ranking 152nd lowest in energy use 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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Find what replaces your water heater
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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 0.95 · Grade F Price it on your ZIP
The registry lists the Rheem AM012240T as an electric tankless unit with a UEF, the ratio of hot water delivered to energy used, of 0.95. Its maximum flow rate in gallons per minute is 1.1. This site multiplied the registry's UEF by the DOE test's daily hot-water draw for the very small draw pattern, which gives 622 kWh of electricity a year. The registry does not publish that annual figure itself, so it is a site calculation and not a registry entry. The method behind the annual figure is documented separately. The source data is DOE CCD, retrieved 2026-09-19.
The class here is the 271 models registered as an electric tankless unit at the very small draw pattern. Its median is 615 kWh. This model is 7 kWh above that median and ranks 152nd lowest in energy use, in the quarter of the class just above the median. The difference from the median is 7 kWh, so the model sits near the middle of its class and not at either end. The comparison holds only for this draw pattern, which covers small units: a single bathroom, or a point-of-use heater under a sink. Energy use of the same model at any other draw pattern is not available on this page.
The figure suits a reader checking a small-demand installation against the 622 kWh shown. It does not suit a comparison of larger hot-water needs, because 622 kWh belongs to the very small draw pattern only. A selector by fuel, space and size covers that wider question. The running cost is not stated in this text, because it depends on your own electricity rate. The cost calculator on your own ZIP applies that rate to 622 kWh. To look at another model in the same class, you can find a same-class replacement by model number.
DOE CCD · 2026-09-19