AprilAire E100 dehumidifier: specs and cost to run

Our read

Who it suits

The E100 is a ducted whole-house unit, rated 85 pints a day. The ENERGY STAR sizing table covers portables only. Its efficiency is close to the median of certified ducted units.

By Julien Fourel · How we compare

Updated Oct 16, 2026

2.35 L/kWh

Water removed per kWh, against the 21 certified ducted models

median 2.35

Each dot is one certified whole-house model, from the EPA list updated Oct 15, 2026.

Running cost

About the usual efficiency for a whole-house unit

Its efficiency is 2.35 liters per kWh. The median of the 21 certified ducted models is 2.35. At the median, the power bill won’t separate it from most units, so compare installed quotes.

Whole-house vs portable

Ask before you buy

Ask for an installed quote

The E100 connects to your ducts and needs a drain line, and the labor adds to its price. ENERGY STAR says a contractor should size and install it.

What to ask a contractor

From the data

Where it stands

Removes 100 pints for $3.69 in the United States, at an efficiency of 2.35 liters per kWh.
Its refrigerant is R-32.
No Wi-Fi app.Not listed as connected.
Of the 21 certified whole-house units, 4 remove more water per kWh, and 7 match it.
By capacity, it ties for 8th, at 85 pints a day.Certified whole-house units range from 52 to 172 pints a day.
AprilAire also makes it smaller, the E080 at 65 pints, and bigger, the E130 at 105 pints.The bigger one is rated 2.35 L/kWh.
Sold since January 2021. Among whole-house models, 1 of 21 came out earlier.
On the EPA’s Most Efficient list, like 11 other whole-house models.
The company that files it also files the Santa Fe models with the EPA.
Another brand near this size is the Carrier Corporation DEHXXCDA1100*: 85 pints, 2.35 L/kWh.Same cost to remove 100 pints in the United States.
The DOE filing gives 2.22 L/kWh and 85 pints a day for a 3.3 cubic foot case.This filing is 25% above the federal minimum of 1.77 L/kWh for whole-house units with a case of 8 cubic feet or less. The EPA list shows 2.35 L/kWh and 85 pints. The DOE also lists it under Anden, CAC/BDP, DriSteem, Healthy Climate, and Johnson Controls.

Our arithmetic

One full day of drying

Water

10.6gal

85 pints

Electricity

17.1kWh

liters ÷ IEF

Cost

$3.13

in the United States

A day of nonstop drying means 85 pints of water, about 10.6 gallons, for some 17.1 kWh. At the average home electricity price in the United States, the E100 costs $3.13 to run that day.

Thirty days like that would use about 513 kWh, or $94. That’s nonstop running at the test conditions. Once the house reaches its humidity setting, the unit shuts off.

Whole-house dehumidifier guide

Safety

Recalls

No CPSC recall names this model.Checked Oct 4, 2026.

No CPSC dehumidifier recall names Research Products.

Every number has a source

Where the numbers come from

U.S. EPAOct 15, 2026

Capacity, energy use, refrigerant, filing company, certification.

Record 4510067 · certified Sep 23, 2025

U.S. Energy Information AdministrationJuly 2026

Home electricity price in each state.

Electric Power Monthly, Table 5.6.A

U.S. Department of EnergyOct 5, 2026

Capacity, efficiency, and case size, as the company filed them.

Compliance Certification Database, basic model E100

Code of Federal RegulationsOct 7, 2026

Federal minimum efficiency for each size of dehumidifier.

10 CFR 430.32(v), as of Jan 1, 2025

Consumer Product Safety CommissionOct 4, 2026

Recalls of dehumidifiers.

No recall naming this company

Not published by these sources

Pump and pump lift
Noise, dB(A)
Bucket size
Lowest working temperature
Dimensions
Warranty

Found a number that looks wrong?Report it

Full spec sheet

All the details

How much water it removes2 of 3 published

Water removed a dayDOE 2019 test (Appendix X1): 85 pints EPA
Type: Whole-house EPA
Room size covered: Not published

Drainage0 of 4 published

Bucket size: Not published
Drain hose connection: Not published
Built-in pump: Not published
Pump lift: Not published

Running cost2 of 2 published

Integrated energy factor (IEF)Liters removed per kWh. Higher is better: 2.35 L/kWh EPA
Cost to remove 100 pints in the United States: $3.69 EPA × EIA

Noise0 of 1 published

Noise level, dB(A): Not published

Build and warranty2 of 6 published

Refrigerant: R-32, 13.5 oz EPA
Wi-Fi app: No EPA
Lowest working temperature: Not published
Dimensions: Not published
Weight: Not published
Warranty: Not published

Certification and filing5 of 5 published

ENERGY STAR® certified: Sep 23, 2025 EPA
On the market since: Jan 29, 2021 EPA
Filed byCompany that filed the model with the EPA: Research Products EPA
Sold in: United States EPA
UPC: 686720006500 EPA

Guides

Comparison and guides for this model

Each guide compares the certified models of this size for one need. AprilAire vs Santa Fe sets the two brands side by side.

AprilAire E100 vs E130Side by sideComparison Whole-house dehumidifierCovers 52–172 pints Commercial dehumidifierCovers 85–172 pints AprilAire vs Santa FeBrand comparisonComparison

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AprilAire E100