9 Best AprilAire Dehumidifiers for Crawl Spaces (October 2026)
The best AprilAire crawl space dehumidifiers include the ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial for rugged crawl space use, the Moiswell 155 Pint Commercial Dehumidifier with Drain for low joists and large areas, and the AprilAire E080 Pro 80-Pint Whole-House Dehumidifier for an AprilAire whole-house system.
On this page (7 sections)
- Best AprilAire crawl space dehumidifiers at a glance
- How we compared AprilAire crawl space dehumidifier reviews
- Which crawl space dehumidifier fits low clearance?
- How do drainage options change the choice?
- Which AprilAire option suits a sealed crawl space?
- What should you check before choosing a crawl space unit?
- Which AprilAire crawl space dehumidifier should you choose?
The ALORAIR HD55 is the highest-scoring pick in this crawl-space roundup, with 113 pints at saturation and automatic drainage. The AprilAire E080 Pro is the direct AprilAire choice, with 80 pints per day capacity and continuous drainage.
If clearance or drain routing is your main concern, compare the compact alternatives and hanging kit. For basement-focused models, compare Honeywell dehumidifiers for basements.
AprilAire has one dehumidifier in this set, plus a hanging accessory. The other picks are alternatives from other brands, included to compare capacity, footprint and drainage options.
For a basement installation, compare GE basement dehumidifiers. For noise-focused options, see quiet basement dehumidifiers.
For a broader starting point, see our best dehumidifier for crawl space guide. If you're deciding whether the space needs mechanical moisture control, read Do I Need a Crawl Space Dehumidifier?.
Best AprilAire crawl space dehumidifiers at a glance
ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial: Best for rugged crawl space use
- 113 pints at saturation, 53 pints per day at AHAM
- Up to 1,200 sq ft
- 19.2 x 12.2 x 13.3 in
- Automatic drainage
The metal-cased Sentinel HD55 combines a compact footprint with automatic drainage and automatic defrost. It suits buyers who want a crawl-space unit with a rugged outer casing.
Pros
- Compact dimensions
- Automatic drainage
- Automatic defrost
Cons
- Remote control is optional
- Capacity is 53 pints per day at AHAM
Moiswell 155 Pint Commercial Dehumidifier with Drain: Best for low joists and large areas
- 155 pints maximum, 70 pints per day at AHAM
- 22.5 x 14 x 14.7 in
- Horizontal design
- Automatic gravity drain
The horizontal cabinet is designed for installation between floor joists and in low-clearance crawl spaces. Its stated capacity is higher than the AprilAire E080's.
Pros
- Horizontal shape for tight clearances
- Automatic gravity drainage
- Auto restart after power outage
Cons
- Longer than the AprilAire E080
- Drainage depends on a suitable gravity path
AprilAire E080 Pro 80-Pint Whole-House Dehumidifier: Best for an AprilAire whole-house system
- 80 pints per day
- For sealed crawl spaces and homes up to 4,400 sq ft
- 14 x 26 x 15 in
- Continuous draining
The E080 is the AprilAire dehumidifier in this roundup. It offers automatic humidity control, continuous drainage and a washable MERV 8 filter.
Pros
- AprilAire model for sealed crawl spaces
- No water tray to empty
- Washable MERV 8 filter
Cons
- Longer footprint than compact crawl-space units
- Needs a hose or floor drain
ALORAIR 120 Pints Energy Star Crawlspace Dehumidifier,: Best for Energy Star capacity
- 120 pints at saturation, 55 pints per day at AHAM
- Up to 1,300 sq ft
- 19.2 x 12.2 x 13.3 in
- Energy Star certified
The Sentinel HD55S has the same dimensions as the ALORAIR HD55 and adds Energy Star certification with a slightly higher stated capacity.
Pros
- Energy Star certified
- Automatic drainage
- Automatic defrost
Cons
- 55 pints per day at AHAM
- Remote monitoring is optional
Airecoler 125 Pints Commercial Dehumidifier for Crawl: Best for a compact high-capacity alternative
- 125 pints maximum, 60 pints at AHAM
- 19.2 x 12.2 x 13.4 in
- Drain hose included
- Automatic defrost
This compact unit pairs a stated 125-pint maximum capacity with a drain hose and automatic defrost. Its dimensions may suit low-clearance spaces.
Pros
- Compact dimensions
- Drain hose included
- Automatic restart
Cons
- Capacity is 60 pints at AHAM
- Brand is not AprilAire
AprilAire 5822 Dehumidifier Hanging Kit for AprilAire: Best for suspending an AprilAire unit
- For compatible AprilAire models including E080
- Supports up to 200 lb
- Four 6-foot ratchet ropes
- Designed for joists or beams
This is an accessory, not a dehumidifier. It can suspend a compatible AprilAire unit where floor space is limited or standing water is a concern.
Pros
- Compatible with E080
- Supports up to 200 lb
- Includes four 6-foot ratchet ropes
Cons
- Requires secure joists or beams
- Not intended for overhead use in an occupied space
ALORAIR Smart Wi-Fi 120 Pints Energy Star: Best for app-based humidity control
- 120 pints at saturation, 55 pints per day at AHAM
- Up to 1,300 sq ft
- Wi-Fi app control
- Continuous drainage
The Wi-Fi Sentinel adds remote humidity monitoring and settings control to the compact ALORAIR platform. It is an alternative when app access matters more than choosing AprilAire.
Pros
- Remote app control
- Energy Star certified
- Automatic defrost
Cons
- 55 pints per day at AHAM
- Brand is not AprilAire
ALORAIR 70 Pints Crawlspace Dehumidifier for Commercial: Best for smaller damp crawl spaces
- 70 pints at saturation, 35 pints per day at AHAM
- Up to 1,000 sq ft
- 15.35 x 11.2 x 11.4 in
- 6.5-foot gravity drain hose
The smaller Sentinel HS35 has the shortest height among these dehumidifiers. Its capacity is lower, so match it to the moisture load rather than choosing by size alone.
Pros
- Shorter dimensions for tight access
- Gravity drain hose included
- Automatic defrost
Cons
- 35 pints per day at AHAM
- Gravity drainage needs a suitable drain location
ALORAIR 70 Pints Crawl Space/Commercial Dehumidifier: Best for a built-in drain pump
- 70 pints at saturation, 35 pints per day at AHAM
- Up to 1,000 sq ft
- 16.1 x 11.8 x 13.1 in
- Built-in pump lifts water up to 19.6 ft
The Helios MP35 offers gravity drainage or a built-in pump for routes that need water lifted vertically. Seal the gravity drain cap before using the pump.
Pros
- Built-in pump lifts water up to 19.6 ft
- Gravity drain hose included
- Automatic restart
Cons
- 35 pints per day at AHAM
- Pump requires the gravity drain cap to be sealed
How we compared AprilAire crawl space dehumidifier reviews
We compared stated capacity, dimensions, drainage and crawl-space installation features. Our score weighs specs and features against what you're shopping for.
Capacity figures need careful reading. Several products give both a maximum or saturated figure and an AHAM figure, so don't compare a maximum directly with another unit's AHAM result.
The AprilAire E080 is rated for 80 pints per day and measures 14 x 26 x 15 in. The 5822 hanging kit is a separate accessory for compatible AprilAire models, including the E080.
| Product | Best for | Capacity | Dimensions | Drainage | Our score |
|---|---|---|---|---|---|
| ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial | rugged crawl space use | 113 pints at saturation | 19.2 x 12.2 x 13.3 in | Automatic, no tank | 9.7 |
| Moiswell 155 Pint Commercial Dehumidifier with Drain | low joists and large areas | 155 pints maximum | 22.5 x 14 x 14.7 in | Gravity drain hose | 9.6 |
| AprilAire E080 Pro 80-Pint Whole-House Dehumidifier | an AprilAire whole-house system | 80 pints per day | 14 x 26 x 15 in | Hose or floor drain | 9.5 |
| ALORAIR 120 Pints Energy Star Crawlspace Dehumidifier, | Energy Star capacity | 120 pints at saturation | 19.2 x 12.2 x 13.3 in | Continuous drainage | 9.4 |
| Airecoler 125 Pints Commercial Dehumidifier for Crawl | a compact high-capacity alternative | 125 pints maximum | 19.2 x 12.2 x 13.4 in | Continuous drain hose | 9.3 |
| AprilAire 5822 Dehumidifier Hanging Kit for AprilAire | suspending an AprilAire unit | 9.2 | |||
| ALORAIR Smart Wi-Fi 120 Pints Energy Star | app-based humidity control | 120 pints at saturation | 19.2 x 12.2 x 13.3 in | 9.1 | |
| ALORAIR 70 Pints Crawlspace Dehumidifier for Commercial | smaller damp crawl spaces | 70 pints at saturation | 15.35 x 11.2 x 11.4 in | Gravity drain hose | 9.0 |
| ALORAIR 70 Pints Crawl Space/Commercial Dehumidifier | a built-in drain pump | 70 pints at saturation | 16.1 x 11.8 x 13.1 in | Gravity hose or built-in pump | 8.9 |
Which crawl space dehumidifier fits low clearance?
For a tight space, compare the unit dimensions with the crawl-space height and the route through the access opening. The ALORAIR HS35 is 11.4 in high, while the horizontal Moiswell is designed for low-clearance locations and is 14.7 in high.
Compact dimensions alone don't settle installation fit. Leave room for the drain hose, power cord, filter access and airflow, then check whether the unit can pass through the entry.
The AprilAire E080 measures 14 in deep, 26 in wide and 15 in high. The AprilAire 5822 hanging kit fits compatible models including the E080 and can suspend the unit from beams or joists.
How do drainage options change the choice?
Choose a drainage method that fits the route from the unit to a floor drain, sump or other suitable discharge point. The E080 drains through a hose or over a floor drain, while the ALORAIR HS35, HD55 and HD55S use continuous drainage.
Gravity drainage needs a path that carries water away without kinks or a high point that blocks flow. The Helios MP35 has a built-in pump that can lift water vertically up to 19.6 ft, and its gravity drain cap must be sealed before pump use.
The AprilAire 5822 can suspend a compatible unit and provide additional height for drainage or installation of a condensate trap or pump if needed. Review how to dehumidify a crawl space for broader setup steps, including moisture entry and drainage planning.
Which AprilAire option suits a sealed crawl space?
The AprilAire E080 is the direct choice if you want an AprilAire dehumidifier for a sealed crawl space. Its sensor starts dehumidification when humidity rises above the target, and it drains collected water without a tray to empty.
The washable MERV 8 filter and corrosion-resistant aluminum coils are useful maintenance details. The E080 is larger than the compact ALORAIR models, so measure the access path and installation area before deciding.
Choose the E080 if its footprint works for your space. Choose the 5822 only if you need to suspend a compatible AprilAire unit.
What should you check before choosing a crawl space unit?
Measure the crawl-space entrance and the space where the unit will sit or hang. Leave clearance for the drain hose, power cord, service access and airflow.
Then decide how water will leave the space. A gravity drain may work where a floor drain is nearby; if water must be lifted vertically, consider the Helios MP35's built-in pump.
Match capacity to the space and moisture conditions. The E080's 80 pints per day is measured differently from the ALORAIR HD55's 113-pint maximum, which is 53 pints per day at AHAM.
Finally, consider filter cleaning and controls. The E080 has a washable filter, while the ALORAIR HS35 has a washable MERV-1 filter and manual humidity controls.
Which AprilAire crawl space dehumidifier should you choose?
Choose the ALORAIR HD55 for the highest score in this roundup, the AprilAire E080 Pro if you want an AprilAire crawl-space model, or the 5822 kit if your installation calls for suspending a compatible AprilAire unit. For another basement brand comparison, see Waykar dehumidifiers for basements.
For a shorter unit, compare the ALORAIR HS35; for water that must be pumped upward, consider the Helios MP35. If you're weighing brands, see our best Santa Fe dehumidifiers for crawl spaces guide and Do I Need a Dehumidifier for a Crawl Space?.
Our top 3 picks at a glance
-
1
Best for rugged crawl space use
ALORAIR 113 Pints Crawlspace Dehumidifier for Commercial
9.7/10 our score
See it on Amazon -
2
Best for low joists and large areas
Moiswell 155 Pint Commercial Dehumidifier with Drain
9.6/10 our score
See it on Amazon -
3
Best for an AprilAire whole-house system
AprilAire E080 Pro 80-Pint Whole-House Dehumidifier
9.5/10 our score
See it on Amazon
Frequently asked questions
Is AprilAire a good crawl space dehumidifier brand?
AprilAire's E080 is designed for sealed crawl spaces and removes up to 80 pints per day. It has continuous drainage and a washable MERV 8 filter.
Check its 14 x 26 x 15 in dimensions against your access opening and installation space before choosing it.
Which AprilAire dehumidifier works in a crawl space?
The AprilAire E080 is the direct crawl-space option among the products here. AprilAire describes it for sealed crawl spaces and whole-home use, with automatic humidity sensing and drainage through a hose or floor drain.
The 5822 is a hanging accessory for compatible models, including the E080.
Can I hang an AprilAire crawl space dehumidifier?
Yes, the AprilAire 5822 hanging kit is designed for compatible dehumidifiers, including the E080, and supports up to 200 lb. It includes brackets, eye bolts and 6-foot ratchet ropes.
Secure installation depends on suitable beams or joists, and the kit is not intended for overhead use in an occupied space.
Does a crawl space dehumidifier need a drain?
Most crawl-space units need a reliable way to remove collected water. The E080 can drain through a hose or over a floor drain, while the listed ALORAIR options use gravity drainage or, for the Helios MP35, a built-in pump.
Plan the route before installation.
How do I choose the right crawl space capacity?
Start with the crawl space's moisture conditions, area and available installation space, then compare capacity figures measured under the same conditions. Maximum or saturated capacity is not directly comparable with AHAM capacity.
A moisture professional can help assess persistent water entry or unusually damp conditions.
