Dehumidifier – Aprilaire E100

Item:  AP-E100D

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Aprilaire E100 Dehumidifier

NOTE: This is the Aprilaire product replacement for the Aprilaire 1850. Shipments are in transition.

The Aprilaire E100, as part of the ATMOX system, offers the best crawl space moisture control system through the use of smart ventilation and dehumidification. The dehumidifier is effective in quickly reducing moisture levels within the crawl space. This is particularly true in areas with high levels of heat and humidity as seen in the Southeast. In larger crawl spaces, a dehumidifier may have difficulty drying out far corners away from the unit. To solve this problem, use the ATMOX internal fans with the dehumidifier to assist air movement to the unit to increase the drying reach. You don’t want to dry out the area near the dehumidifier but neglect the other parts.

Energy Efficient

ATMOX product design emphasizes energy efficiency because moisture control systems should be effective and inexpensive to operate. Dehumidifiers typically have high energy usage. However, With use of the ACE Controller, it reduces the use of the dehumidifier when fans are better at drying. As a result, there is less energy consumption and also brings in some fresh outside air. Both vented and encapsulated crawl spaces can benefit from an ATMOX system.


The Aprilaire E100 Dehumidifier is designed to dehumidify the air coming into the unit. The incoming air passes over an evaporator coil to drop the air temperature below the dew point of the air and remove the moisture from the air and drain it out of the unit to a common floor or waste drain. This unit has a large capacity water removal of 100 pints per day. In addition, there is an auto restart that allows the unit to automatically restart after a power outage.

Pump Kits

Dehumidifier pump kits drain the condensation for the dehumidifiers. The pump kits are available through ATMOX and compatible with the Aprilaire dehumidifiers.

ATMOX is a reseller of Aprilaire dehumidifiers. Dehumidifiers used with ATMOX Controller should use the ATMOX Adapter Kit.

Contact us for pricing or additional product information.


  • 100 pints/day

Spec Sheet – Dehumidifier – Aprilaire-E100