Why it matters
The AprilAire E100 100 Pint Energy Star Whole House Dehumidifier is a whole-house (ducted) dehumidifier, rated for 5500 sq ft and removing up to 100.0 pints/day a day.
Aim for 40 to 60 percent relative humidity indoors: drier air irritates airways and skin, wetter air feeds dust mites and mold.
At its stated 828 watts, running non-stop uses about 19.9 kWh a day; in practice the compressor cycles off once the room reaches the set humidity.
Its rated area of 5,500 square feet is one of the largest ratings we cover: 85 of the 99 dehumidifiers with a stated figure come in lower, and the range runs from 110 square feet to 7,500 square feet.
Price-wise it sat in the middle third of the 12 whole-house models we cover when we checked; the button shows today's price.
It qualifies for our list Best Whole-House Dehumidifiers, where it is ranked against every model that meets the same rule.
Compared with the AprilAire E050 50 Pint Crawlspace Dehumidifier: rated room size 5500 sq ft here vs 1600 sq ft; power draw Plug / Without Wi-Fi: 828 W here vs 500 W.
Warranty, per the maker: 5-Year Replacement Warranty, 1-Year Parts Warranty.
Who it's for, and who should skip it
Good fit if
- Humid climates where every room needs drying
- Owners who can run a drain hose
Look elsewhere if
- Rooms far larger than its rating
Pros and cons
Pros
- 100.0 pints/day removal
- Rated for 5500 sq ft
Cons
- Needs regular cleaning to stay hygienic
Limitations to weigh
- Not stated on the AprilAire E100 100 Pint Energy Star Whole House Dehumidifier listing: bucket size. Ask the seller or check the manual before relying on it.
- Pints-per-day figures depend on the test conditions; since 2019 the US test uses cooler, drier air, so newer ratings look smaller than older ones for the same machine.
Specifications
The bracket shows where each figure comes from.
| Price | $1,873 | Retailer |
|---|---|---|
| Model number | E100 | Retailer |
| Room coverage | 5500 sq ft | Retailer |
| Moisture removal | 100.0 pints/day | Retailer |
| Wattage | Plug / Without Wi-Fi: 828 W | Retailer |
| Noise (seller) | Plug / Without Wi-Fi: 55 dB (max) | Retailer |
| Airflow | 280.0 CFM | Retailer |
| Filter type | Washable MERV 8 | Retailer |
| Low temp | Plug / Without Wi-Fi: 40 °F | Retailer |
| Voltage | 110-120 V | Retailer |
| Refrigerant | R-32 | Retailer |
| Warranty | 5-Year Replacement Warranty, 1-Year Parts Warranty | Retailer |
Alternatives worth comparing
More dehumidifiers we cover
- Whirlpool 25 Pint Dehumidifier (WHAD251AW) $229.99
- ALORAIR Galaxy 85P Dehumidifier
- KNKA Max 34 Dehumidifier
- Midea MAD50C1AWS-A Dehumidifier
- BLACK+DECKER BDM50WCDA Dehumidifier
All dehumidifiers, compared in one table · Every Aprilaire product we cover
Final verdict
A practical choice for humid climates where every room needs drying. Confirm the model it fits before ordering.
Where to buy
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