DoesTheMath

Aquapower DHC 9-3

0.95 UEF DOE CCD · 2026-09-19
F

Grade 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 9-3, an electric tankless unit, it uses 622 kWh of electricity a year. That figure is at the federal test's daily hot-water draw for the very small draw pattern, the standard daily hot-water usage DOE tests against. It sits 7 kWh above the 615 kWh median of its class.


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.

This model: 622 kWh

Solid line: this model (622 kWh). Dashed line: the class median.

Min 562 kWh Median 615 kWh Max 649 kWh

DOE CCD · 2026-09-19

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What it costs to run where you live

Enter your ZIP to see what this unit costs to run a year on your own utility’s electricity rate.


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
0.9 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) · 2026-04-01

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Safety 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 · 2026-09-24

What these figures mean

This site calculated the 622 kWh figure; it is not a registry value. It combines the registry's UEF, the ratio of hot water delivered to energy used, of 0.95 with the DOE test's daily hot-water draw for the very small draw pattern. The source is the DOE Compliance Certification Database (CCD), retrieved 2026-09-19. This model ranks 152nd lowest for energy use among the 271 models registered as an electric tankless unit at this draw pattern. That places it in the second-highest quarter of its class for energy use. The steps behind the figure are set out on the page explaining how this site calculates annual energy and cost.

The very small draw pattern covers small units: a single bathroom, or a point-of-use heater under a sink. The 622 kWh rating describes that kind of use and nothing heavier. The registry lists a maximum flow rate in gallons per minute of 0.9 for this model. A home that draws hot water at several fixtures at once is outside the draw pattern this rating reflects. The data here gives no energy figure for heavier daily use, so that figure is not available on this page. To compare units by other needs, use the water heater selector by fuel, space and size.

The text does not state a running cost for this model. Cost depends on your own utility electricity tariff, so the page computes it from your ZIP code instead. At the federal test's draw, apply your rate to 622 kWh a year for this model and to 615 kWh for the class median. The 7 kWh yearly gap is the difference between them. Its cost depends on your rate, which is not known here. The cost calculator for your own ZIP code does that step. The installed price block on this page is a modeled range, not a quote. To check other models in this class by model number, see the same-class replacement search.

DOE CCD · 2026-09-19

How this compares

The closest models in the same class — same fuel, type and draw pattern.


Keep going

UEF 0.95 · Grade F Price it on your ZIP