Aquapower DHC 4-3
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 Aquapower DHC 4-3, it uses 622 kWh of electricity a year. That is at the very small draw pattern, the standard daily hot-water usage DOE tests against. The figure is 7 kWh above the class median of 615 kWh. It ranks 152nd lowest of 271.
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
- 0.5 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
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 Aquapower model on file
What this brand files, by heater type.
UEF 0.95 · Grade F Price it on your ZIP
The annual figure of 622 kWh was computed by this site, not the registry. It combines the registry's UEF, the ratio of hot water delivered to energy used, with the DOE test's daily hot-water draw. The registry lists a UEF of 0.95 for this model. This model is an electric tankless unit, so the fuel is electricity, and the figure applies only at the very small draw pattern. A figure for any other draw pattern is not available in these data. The source is DOE CCD, retrieved 2026-09-19. The methodology page explains how the annual cost is calculated.
This model ranks 152nd lowest for energy use among 271 models. All are registered as an electric tankless unit at the very small draw pattern. Its use is 7 kWh above the class median of 615 kWh, which places it in the second-highest quarter of its class. The very small draw pattern covers small units, such as a single bathroom or a point-of-use heater under a sink. The registry lists a maximum flow rate in gallons per minute of 0.5. This page does not say whether that flow suits a particular fixture. To compare with a same-class unit, find a same-class replacement by model number.
The running cost is not stated in this text. It depends on your own utility electricity tariff, so this page does not estimate it. The cost calculator on your own ZIP applies your rate to the 622 kWh figure. That figure holds only for the very small draw pattern at the federal test's daily hot-water draw. A household whose hot-water use differs from that pattern should not read 622 kWh as its own usage. For other fuels, spaces and sizes, use the selector by fuel, space and size. The modeled installed-cost range is shown in its own block with its source and date. It is a modeled range, not a quote, and it is not repeated here.
DOE CCD · 2026-09-19