15 Best 100 Pint Dehumidifiers for Crawl Space in 2027

For a 100-pint dehumidifier for a crawl space, I’d start with the DECIUU 100-Pint as the best overall match for buyers seeking that capacity, while the AprilAire E100 stands out for whole-house integration and the ALORAIR Smart Wi-Fi 120-Pint for remote monitoring. The lineup also includes 70-pint units for smaller or less damp spaces and 125- to 155-pint models for heavier moisture loads. Capacity is only part of the decision: drainage, installation clearance, controls, and whether the unit is built for crawl space conditions can matter just as much. I compare those tradeoffs across all 15 options below. Continue reading for the full breakdown and guidance on matching a unit to your space.

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Key Takeaways

• The DECIUU 100-Pint is the closest direct fit for shoppers set on a 100-pint crawl space unit; higher-capacity models make more sense when moisture loads are severe or the space is especially large.
• Capacity labels do not tell the whole story: the lineup ranges from 70-pint crawl space models to 155-pint commercial options, so buyers should match capacity to conditions rather than choose the largest number automatically.
• Drainage changes day-to-day upkeep. Built-in pumps can move water where gravity drainage is unavailable, while gravity-drain models need a suitably positioned drain and hose route.
• Whole-house models serve a different purpose. The AprilAire E100 family is aimed at home-wide humidity control, while crawl space-focused models are the more direct choice for below-floor installation.
• Smart controls and included accessories are tradeoffs, not substitutes for fit. Wi-Fi, filters, hanging kits, pumps, and hoses may simplify a particular setup, but buyers still need to check installation space, drainage, and the manufacturer’s intended use.

Our Top 100 Pint Dehumidifier For Crawl Space Picks

AIUSEVO 125-Pint Crawl Space Dehumidifier with Pump and Drain Hose		Best Overall for Large Crawl Spaces	Moisture removal: Up to 125 pints per day at 95°F and 90% RH	Coverage area: Up to 6,500 sq. ft.	Airflow: 265 CFM	VIEW ON AMAZON	See Our Full Breakdown
AIUSEVO Crawl Space Dehumidifier with Pump and Drain Hoses, 70-Pint, 4,000 Sq. Ft.		Best for Smaller Crawl Spaces	Moisture removal: Up to 70 pints per day in the description; supplied specs list 75 pints	Coverage area: Up to 4,000 sq. ft.	Airflow: 200 CFM	VIEW ON AMAZON	See Our Full Breakdown
Airecoler GT-X5 Commercial Dehumidifier, 125-Pint		Best for Buyers Who Value Warranty Coverage	Maximum capacity: 125 pints per day	AHAM capacity: 60 pints per day	Coverage area: 6,000 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
Airzentti 155-Pint Commercial Dehumidifier with Built-In Pump		Best for the Largest, Wettest Spaces	Daily capacity: 155 pints maximum; 70 pints AHAM	Recommended floor area: Up to 7,500 sq. ft.	Airflow: 220 CFM	VIEW ON AMAZON	See Our Full Breakdown
DECIUU 100-Pint Dehumidifier for Spaces up to 5,000 Sq. Ft.		Best for Buyers Who Want Multiple Drainage Choices	Moisture removal: Up to 100 pints per day	Coverage area: Up to 5,000 sq. ft.	Water tank: 1.45 gallons (5.5 L)	VIEW ON AMAZON	See Our Full Breakdown
ALORAIR Smart Wi-Fi Crawl Space Dehumidifier, 120-Pint		Best for Remote Humidity Control	Model: Sentinel HD55S Wifi	Capacity: 120 pints/day at saturation; 55 pints/day at AHAM	Coverage area: 1,300 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
AprilAire E100 Pro 100-Pint Whole-House Dehumidifier		Best for Large Sealed Crawl Spaces	Model: E100	Dehumidification capacity: 100 pints/day	Recommended floor area: 5,500 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
ALORAIR Sentinel HD55S Energy Star Crawl Space Dehumidifier		Best for Low-Temperature Crawl Spaces	Model: Sentinel HD55S	Moisture removal capacity: 120 pints/day at saturation; 55 pints/day at AHAM	Recommended area: Up to 1,300 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
CADPXS 80-Pint Crawl Space and Commercial Dehumidifier with Pump and Drain Hose		Best Value for Pumped Drainage	Capacity: 80 pints/day at saturation; 38 pints/day at AHAM	Recommended area: Listed as 1,000 sq. ft. and up to 1,200 sq. ft.	Drainage: Built-in pump with 19.6 ft hose; gravity drain with 6.56 ft hose	VIEW ON AMAZON	See Our Full Breakdown
AlorAir Helios MP35 70-Pint Crawl Space Dehumidifier with Pump		Best Compact Pumped Option	Capacity: 70 pints/day at saturation; 35 pints/day at AHAM	Coverage area: Up to 1,000 sq. ft.	Pump discharge height: Up to 19.6 ft.	VIEW ON AMAZON	See Our Full Breakdown
AlorAir Sentinel HD55 Commercial Crawlspace Dehumidifier		Best for Cooler Crawl Spaces	AHAM capacity: 53 pints per day	Capacity at saturation: 113 pints per day	Coverage area: 1,200 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
VEVOR Commercial Dehumidifier, 100 Pints per Day, with Drain Hose		Best for High-Output Crawl Spaces	AHAM capacity: 100 pints per day	Capacity at saturation: 190 pints per day	Coverage area: Up to 2,000 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
AprilAire E100W Smart Wi-Fi Whole-House Dehumidifier, 100-Pint, with Pump, Drain Hose, Hanging Kit, and MERV 11 Filter		Best Smart-Connected Pick	Moisture removal: Up to 100 pints per day	Listed coverage: Up to 4,400 or 5,500 sq. ft. (description figures conflict)	Connectivity: Built-in Wi-Fi; AprilAire Connect app	VIEW ON AMAZON	See Our Full Breakdown
Airecoler Stellar S10 70-Pint Commercial Dehumidifier		Best Compact Remote-Control Option	Maximum capacity: Up to 70 pints per day	Capacity at 65°F and 60% RH: 24.43 pints per day	Coverage area: Up to 1,000 sq. ft.	VIEW ON AMAZON	See Our Full Breakdown
AprilAire E100 Whole-House Dehumidifier with Pump and Hanging Kit		Best for Whole-Home Integration	Moisture removal capacity: Up to 100 pints per day	Coverage area: Up to 5,500 sq. ft.	Recommended relative humidity: 40–60%	VIEW ON AMAZON	See Our Full Breakdown

More Details on Our Top Picks

1. AIUSEVO 125-Pint Crawl Space Dehumidifier with Pump and Drain Hose

   

   Best Overall for Large Crawl Spaces

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   I’d put the AIUSEVO 125-Pint first for buyers who want high moisture removal with drainage and installation choices suited to a crawl space. Its 125-pint daily capacity and 265 CFM airflow are paired with a built-in pump, so condensate can be sent upward through the included 16.4-foot hose rather than relying on a nearby floor drain. Gravity drainage is available too. Compared with the AIUSEVO 70-Pint, this model is the better fit for a larger or wetter area; its stated coverage reaches 6,500 square feet. The metal housing supports floor or ceiling installation, while a 6-inch ductable outlet can direct dry air elsewhere. The tradeoff is that the air duct and optional wired remote are separate purchases, and its 51-pound weight may complicate placement.

   Pros:

   • 125-pint stated daily capacity and coverage up to 6,500 square feet
   • Built-in pump with 16.4-foot hose, plus a gravity-drain alternative
   • Floor or ceiling installation and a ductable air outlet
   • Automatic defrost, restart, humidity controls, and washable filter

   Cons:

   • The 6-inch outlet duct is sold separately
   • Optional wired remote control is sold separately
   • At 51 pounds, positioning it in a confined crawl space may take effort

   Best for: Owners of large, persistently damp crawl spaces who need pump drainage, flexible mounting, and the option to duct dry air.

   Not ideal for: Owners of small or moderately damp spaces who do not need 125-pint capacity, or buyers who need a complete ducting setup included.

   • Moisture removal:Up to 125 pints per day at 95°F and 90% RH
   • Coverage area:Up to 6,500 sq. ft.
   • Airflow:265 CFM
   • Drainage:Built-in pump with 16.4 ft hose or gravity drainage with 6.6 ft hose
   • Air outlet:6-inch ductable outlet
   • Dimensions:19.3 × 17.8 × 17.5 in.
   • Weight:51 lbs
   • Controls and features:Touchscreen, humidity control, timer, temperature monitoring, auto restart, automatic defrost, washable filter
   Our verdict

   “Choose this AIUSEVO for a large crawl space where high stated capacity, pump drainage, and ducting flexibility matter more than included accessories.”

   → See it on Amazon →

2. AIUSEVO Crawl Space Dehumidifier with Pump and Drain Hoses, 70-Pint, 4,000 Sq. Ft.

   

   Best for Smaller Crawl Spaces

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   The AIUSEVO 70-Pint is the more manageable choice for a crawl space that does not call for the larger AIUSEVO 125-Pint’s stated 6,500-square-foot coverage. It offers a built-in pump with a 16.4-foot hose as well as gravity drainage, giving owners options when the unit sits away from a drain. At 39 pounds and 17.6 × 13.5 × 12.5 inches, it is also easier to position in a tight area than the 51-pound 125-pint model. Touchscreen humidity controls, automatic defrost and restart, and a washable filter cover useful day-to-day needs without adding much complexity. I’d pause over the capacity information: the description says 70 pints, while the supplied specs list 75. Its smaller capacity also makes it a weaker match for extensive or exceptionally wet crawl spaces.

   Pros:

   • Compact dimensions and 39-pound weight make placement easier
   • Pump and gravity drainage options are included
   • Automatic defrost and restart support unattended operation
   • Washable filter and floor-or-ceiling installation suit crawl-space use

   Cons:

   • Capacity is inconsistent in the supplied information: 70 pints in the description and 75 in the specs
   • Lower stated capacity and coverage than the AIUSEVO 125-Pint
   • A wired remote control is mentioned as a separate item

   Best for: Homeowners with a smaller crawl space who want pump drainage and a lighter unit that can be floor- or ceiling-mounted.

   Not ideal for: Owners of large, very damp crawl spaces who need capacity closer to the AIUSEVO 125-Pint or Airzentti 155-Pint.

   • Moisture removal:Up to 70 pints per day in the description; supplied specs list 75 pints
   • Coverage area:Up to 4,000 sq. ft.
   • Airflow:200 CFM
   • Drainage:Built-in pump with 16.4 ft hose or gravity drainage with 6.6 ft hose
   • Dimensions:17.6 × 13.5 × 12.5 in. (D × W × H)
   • Weight:39 lbs
   • Installation:Floor or ceiling
   • Features:Touchscreen, timer, auto restart, automatic defrost, washable filter
   Our verdict

   “Pick this model for a smaller crawl space where compact installation and pump drainage matter more than maximum moisture capacity.”

   → See it on Amazon →

3. Airecoler GT-X5 Commercial Dehumidifier, 125-Pint

   

   Best for Buyers Who Value Warranty Coverage

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   The Airecoler GT-X5 earns its place for crawl-space owners who want a high maximum capacity and a clearly stated warranty structure. Its 125-pint maximum and 265 CFM airflow put it in the same broad capacity class as the AIUSEVO 125-Pint, while its listed coverage is 6,000 square feet rather than 6,500. The main distinction is the five-year warranty: the supplied terms specify two years for the whole dehumidifier and three additional years for the dehumidification system. Automatic defrost, restart, humidity control, and continuous draining support low-attention operation. Capacity figures need careful reading, though: the maximum is 125 pints per day, while the AHAM figure is 60 pints per day. Unlike the AIUSEVO, the supplied drainage details list a 6.56-foot hose but no built-in pump, which may limit routing options.

   Pros:

   • 125-pint maximum daily capacity with 265 CFM airflow
   • Five-year coverage split between the full unit and dehumidification system
   • Automatic defrost, restart, humidity control, and timer
   • Continuous drainage with an included 6.56-foot hose

   Cons:

   • The 60-pint AHAM capacity is substantially below the 125-pint maximum figure
   • Supplied details do not list a built-in pump, unlike both AIUSEVO models
   • At 50 pounds, it may be awkward to move through a confined access opening

   Best for: Crawl-space owners who want a commercial-style unit with automatic operation and a stated multi-year warranty, and whose drain is reachable by gravity.

   Not ideal for: Buyers who need a built-in pump for elevated drainage or who are choosing solely by the 125-pint maximum rather than the separate AHAM capacity.

   • Maximum capacity:125 pints per day
   • AHAM capacity:60 pints per day
   • Coverage area:6,000 sq. ft.
   • Airflow:265 CFM
   • Power:830 watts; 115 volts
   • Drain hose:6.56 ft.
   • Dimensions and weight:19.2 × 12.2 × 13.4 in.; 50 lbs
   • Warranty:5 years: 2 years for the whole dehumidifier and 3 years for the dehumidification system
   Our verdict

   “Choose the GT-X5 if its warranty and automatic controls appeal and gravity drainage will work, but do not treat its 125-pint maximum as its AHAM capacity.”

   → See it on Amazon →

4. Airzentti 155-Pint Commercial Dehumidifier with Built-In Pump

   

   Best for the Largest, Wettest Spaces

   View on Amazon

   For a very large or persistently wet crawl space, the Airzentti offers the highest stated maximum capacity in this group: 155 pints per day under saturated conditions, with a listed 70-pint AHAM figure. That distinction matters when comparing it with the AIUSEVO 125-Pint and Airecoler GT-X5, whose maximum figures are lower but whose own ratings also use different capacity conditions. Airzentti pairs its output with a built-in pump rated for a 16.4-foot lift, continuous drainage, and a 6-inch air duct collar. Energy Star certification is another point of separation from the supplied details for those two alternatives. The tradeoff is substantial: at 59 pounds and 24.3 inches long, it is heavier and larger than either. Its 220 CFM airflow is also lower than the 265 CFM figures listed for both 125-pint competitors.

   Pros:

   • Highest stated maximum capacity in this five-product group at 155 pints per day
   • Built-in pump supports drainage lift up to 16.4 feet
   • Energy Star certified and TUV compliant
   • Automatic restart, defrost, shutoff, timer, and continuous drainage

   Cons:

   • At 59 pounds, it is the heaviest option in this group
   • Long 24.3-inch dimension may make placement difficult in tight crawl spaces
   • 220 CFM airflow is lower than the 265 CFM listed for the AIUSEVO 125-Pint and Airecoler GT-X5

   Best for: Owners of expansive, heavily damp crawl spaces who need elevated pump drainage and want Energy Star certification.

   Not ideal for: Buyers working through a narrow crawl-space opening, or owners of smaller areas who do not need its large capacity and footprint.

   • Daily capacity:155 pints maximum; 70 pints AHAM
   • Recommended floor area:Up to 7,500 sq. ft.
   • Airflow:220 CFM
   • Built-in pump lift:16.4 ft.
   • Drain hose:6.56 ft.
   • Air duct collar:6 in. (150 mm)
   • Dimensions and weight:14.2 × 24.3 × 15 in.; 59 lbs
   • Power and certification:860 watts; Energy Star certified; TUV compliant
   Our verdict

   “Choose the Airzentti for a large, wet crawl space that can accommodate its size and benefits from a built-in pump and high stated capacity.”

   → See it on Amazon →

5. DECIUU 100-Pint Dehumidifier for Spaces up to 5,000 Sq. Ft.

   

   Best for Buyers Who Want Multiple Drainage Choices

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   The DECIUU is the closest match to the roundup’s 100-pint target, but its home-oriented design makes it a different proposition from the metal crawl-space units above. It lists 100 pints per day and coverage up to 5,000 square feet, with tank collection, continuous drainage, and a third drainage option. Its 32.8-pound weight and swivel casters make it easier to move than the 50-pound Airecoler GT-X5 or 59-pound Airzentti. A washable filter, child lock, and adjustable 35%–80% RH settings add everyday convenience. For a crawl space, however, the 1.45-gallon tank is a limited backup if continuous drainage is unavailable, and the supplied details do not specify a built-in pump for lifting water to an elevated outlet. Its 300-watt figure also differs from the commercial models’ listed power, though that alone does not establish comparative performance.

   Pros:

   • 100-pint daily capacity and coverage listed up to 5,000 square feet
   • Three drainage options, including continuous draining
   • At 32.8 pounds, it is lighter than the commercial Airecoler and Airzentti models
   • Washable filter, child lock, timer, and automatic defrost and restart

   Cons:

   • The 1.45-gallon tank may need frequent emptying when hose drainage is not used
   • Supplied details do not specify a built-in pump for elevated drainage
   • Home-use features and listed specifications make it less directly suited to difficult crawl-space installations than the AIUSEVO units

   Best for: Homeowners with an accessible crawl space who want a 100-pint-rated unit that is lighter to move and offers tank or hose drainage.

   Not ideal for: Owners who need a crawl-space-specific metal unit, elevated pump drainage, or reliable tank-only operation during extended unattended use.

   • Moisture removal:Up to 100 pints per day
   • Coverage area:Up to 5,000 sq. ft.
   • Water tank:1.45 gallons (5.5 L)
   • Drain hose:6.56 ft.
   • Humidity setting range:35%–80% RH
   • Airflow:9,396 cubic feet per hour
   • Dimensions and weight:11.39 × 17.29 × 26.33 in.; 32.8 lbs
   • Power and certification:300 watts; 120 volts; ENERGY STAR Most Efficient 2024
   Our verdict

   “Pick the DECIUU if you want a 100-pint-rated, relatively light unit with flexible drainage and can arrange continuous drainage for unattended crawl-space use.”

   → See it on Amazon →

6. ALORAIR Smart Wi-Fi Crawl Space Dehumidifier, 120-Pint

   

   Best for Remote Humidity Control

   View on Amazon

   For crawl spaces where you want to check and adjust humidity without returning to the access hatch, the ALORAIR Sentinel HD55S WiFi is the standout here. Its app control adds a practical convenience the standard Sentinel HD55S lacks, while automatic restart and defrost support unattended operation. The headline 120-pint capacity is measured at saturation; the more useful AHAM figure is 55 pints per day, so I would not treat it as a 120-pint-per-day performer under typical test conditions. Its stated coverage is 1,300 square feet, making it a better fit for a defined crawl space than the much larger-area AprilAire E100. The tradeoff is a 41.7-pound unit that still needs a suitable drain setup, and the Wi-Fi functions may matter less if you can easily reach the equipment.

   Pros:

   • App-based humidity monitoring and adjustment reduce trips to the crawl-space access point.
   • Automatic defrost and restart support operation through changing temperatures and power interruptions.
   • Corrosion protection is suited to a damp installation environment.
   • Six-year limited warranty and ETL listing provide useful ownership and safety details.

   Cons:

   • The 120-pint figure is at saturation; listed AHAM capacity is 55 pints per day.
   • At 41.7 pounds, it is not a particularly light unit to position.
   • Wi-Fi control depends on usable wireless coverage at the installation location.

   Best for: Crawl-space owners who want to monitor and adjust humidity remotely and have reliable Wi-Fi near the installation area.

   Not ideal for: Buyers who need a verified 100-pint AHAM capacity, lack Wi-Fi in the crawl space, or want a very lightweight unit.

   • Model:Sentinel HD55S Wifi
   • Capacity:120 pints/day at saturation; 55 pints/day at AHAM
   • Coverage area:1,300 sq. ft.
   • Dimensions:19.2 × 12.2 × 13.3 in.
   • Weight:41.7 lbs
   • Features:Wi-Fi app control, adjustable humidity control, automatic defrost and restart, corrosion protection
   • Safety listing:ETL listed
   • Warranty:6-year limited warranty
   Our verdict

   “Choose this model when remote control matters more than a 100-pint AHAM rating or a larger stated coverage area.”

   → See it on Amazon →

7. AprilAire E100 Pro 100-Pint Whole-House Dehumidifier

   

   Best for Large Sealed Crawl Spaces

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   The AprilAire E100 is the strongest match in this group for a large sealed crawl space that needs whole-area moisture control rather than app-based convenience. Its stated 100-pint daily capacity and 5,500-square-foot coverage set it apart from the ALORAIR units, whose stated coverage is 1,300 square feet. Automatic humidity control and continuous-drain connections also suit a fixed installation where emptying a tank would be inconvenient. It can connect to a drain or HVAC system, and the washable filter and corrosion-resistant aluminum coils address ongoing maintenance and damp-air exposure. This is a substantially heavier 64-pound unit, though, and its large footprint and single speed make it less appealing for tight access points or buyers who want a portable setup. Compared with the CADPXS 80-Pint, it favors stated capacity and coverage over a built-in pump.

   Pros:

   • 100-pint daily capacity and stated 5,500-square-foot coverage suit larger areas than the compact crawl-space units.
   • Automatic humidity control reduces the need for repeated manual adjustments.
   • Drain or HVAC connection supports a permanent installation without routine tank emptying.
   • Washable filter, corrosion-resistant aluminum coils, and a five-year warranty support ongoing use.

   Cons:

   • At 64 pounds, moving and positioning it in a crawl space can be difficult.
   • The 14 × 26 × 15-inch dimensions may complicate access through a small hatch.
   • No built-in pump is specified, so the drain layout must work for gravity drainage or an appropriate connected system.

   Best for: Owners of large, sealed crawl spaces who want automatic humidity control and can install a permanent drain or HVAC connection.

   Not ideal for: Buyers with tight crawl-space access, a need for a built-in condensate pump, or electrical service outside its listed 110–120 VAC, 60 Hz compatibility.

   • Model:E100
   • Dehumidification capacity:100 pints/day
   • Recommended floor area:5,500 sq. ft.
   • Airflow capacity:280 CFM
   • Power:828 watts
   • Voltage and compatibility:120 V AC; 110–120 VAC, single-phase, 60 Hz
   • Dimensions:14 × 26 × 15 in. (D × W × H)
   • Weight:64 lbs
   • Warranty:5 years
   Our verdict

   “Pick the E100 for a large sealed crawl space with room for a fixed installation, not for a compact or pump-dependent setup.”

   → See it on Amazon →

8. ALORAIR Sentinel HD55S Energy Star Crawl Space Dehumidifier

   

   Best for Low-Temperature Crawl Spaces

   View on Amazon

   The standard ALORAIR Sentinel HD55S makes sense when cold-weather operation and a durable fixed installation matter more than remote monitoring. Its automatic defrost is intended to support low-temperature use, while the metal housing and washable MERV-1 filter suit a crawl space where dust and damp conditions are part of the job. Capacity needs a careful read: it is listed at 120 pints per day at saturation but 55 pints per day at AHAM conditions. That puts it well below the AprilAire E100 on stated AHAM capacity and coverage, but its 1,300-square-foot target is more clearly directed at crawl-space installations. Unlike the Wi-Fi ALORAIR version, this model does not include remote monitoring as standard. It also relies on continuous drainage, so a suitable drain outlet is part of the installation plan.

   Pros:

   • Automatic defrost is designed to support operation in low-temperature conditions.
   • Continuous drainage avoids routine manual tank emptying.
   • Metal housing and washable MERV-1 filter are practical for a fixed crawl-space installation.
   • Energy Star certification, cETL listing, and a six-year limited warranty are specified.

   Cons:

   • The listed AHAM capacity is 55 pints per day, despite the larger saturation figure.
   • Continuous drainage requires a suitable drain outlet.
   • Remote monitoring is optional rather than included as standard.

   Best for: Owners of cool, damp crawl spaces who want automatic defrost, continuous drainage, and a metal-cased unit without paying for built-in Wi-Fi features.

   Not ideal for: Buyers without a workable drain outlet, those seeking remote monitoring included, or anyone expecting 120 pints/day under AHAM conditions.

   • Model:Sentinel HD55S
   • Moisture removal capacity:120 pints/day at saturation; 55 pints/day at AHAM
   • Recommended area:Up to 1,300 sq. ft.
   • Airflow:130 CFM
   • Dimensions:19.2 × 12.2 × 13.3 in.
   • Weight:41.7 lbs
   • Features:Automatic defrost, continuous drainage, washable MERV-1 filter
   • Certifications:Energy Star certified; cETL listed
   • Warranty:6-year limited warranty
   Our verdict

   “Choose the standard HD55S for a cool crawl space with a drain outlet when defrost performance matters more than built-in Wi-Fi.”

   → See it on Amazon →

9. CADPXS 80-Pint Crawl Space and Commercial Dehumidifier with Pump and Drain Hose

   

   Best Value for Pumped Drainage

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   The CADPXS 80-Pint prioritizes flexible drainage in a smaller package rather than competing with 100-pint-class models on capacity. Its built-in pump can move condensate through the included 19.6-foot hose, which is useful when a crawl space has no convenient downhill drain. Gravity drainage is also available, giving it more installation options than the AlorAir Helios MP35, whose supplied description focuses on pump discharge. Its 80-pint saturation rating becomes 38 pints per day at AHAM conditions, so this is better suited to a moderate moisture load than a space that demands high extraction. The compact 37-pound body can be floor- or ceiling-mounted, but the product details give two different coverage figures—1,000 and up to 1,200 square feet. I would verify fit against the actual space and treat remote control as a separate purchase.

   Pros:

   • Built-in pump with a 19.6-foot hose can route water where gravity drainage is impractical.
   • Also includes a gravity-drain hose for simpler installations.
   • Compact 37-pound design supports floor or ceiling mounting.
   • Automatic defrost and restart support unattended operation after temperature changes or power interruptions.

   Cons:

   • Capacity is 38 pints/day at AHAM conditions, below the higher-capacity AprilAire E100.
   • Coverage is listed inconsistently as 1,000 and up to 1,200 square feet.
   • Remote control system is sold separately.

   Best for: Owners of moderate-sized crawl spaces who need a built-in pump, flexible hose routing, and floor-or-ceiling mounting options.

   Not ideal for: Buyers with heavy moisture loads who need 100-pint-class AHAM extraction, or those who require a clearly stated coverage figure and included remote control.

   • Capacity:80 pints/day at saturation; 38 pints/day at AHAM
   • Recommended area:Listed as 1,000 sq. ft. and up to 1,200 sq. ft.
   • Drainage:Built-in pump with 19.6 ft hose; gravity drain with 6.56 ft hose
   • Dimensions:15.6 × 12 × 12.6 in.
   • Weight:37 lbs
   • Power:310 W
   • Voltage:115 V
   • Mounting:Floor or ceiling
   • Warranty:5-year limited warranty
   Our verdict

   “Choose the CADPXS when pump-assisted drainage and mounting flexibility matter more than high AHAM capacity or remote control out of the box.”

   → See it on Amazon →

10. AlorAir Helios MP35 70-Pint Crawl Space Dehumidifier with Pump

    

    Best Compact Pumped Option

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    Where clearance is tight and condensate must be lifted to a drain, the AlorAir Helios MP35 offers a compact alternative to the larger ALORAIR Sentinel units. Its built-in pump can discharge water vertically up to 19.6 feet, and the 16.1 × 11.8 × 13.1-inch dimensions make it easier to place in a confined installation than the AprilAire E100. Automatic restart with saved settings is useful if a power interruption occurs, while corrosion-resistant casing is aimed at damp spaces. Capacity is the main limit: 70 pints per day at saturation translates to 35 pints per day under AHAM standards, making it a poor substitute for a true 100-pint AHAM-class unit. Its stated coverage is up to 1,000 square feet, and some installation accessories are sold separately, so check what the crawl space needs before choosing it.

    Pros:

    • Built-in pump discharges water vertically up to 19.6 feet.
    • Compact dimensions suit tighter crawl-space installations than the AprilAire E100.
    • Automatic restart retains settings after a power outage.
    • Corrosion-resistant casing and a six-year limited warranty are specified.

    Cons:

    • AHAM capacity is 35 pints per day, well below the 100-pint E100’s stated daily capacity.
    • Coverage is limited to up to 1,000 square feet.
    • Optional installation accessories are sold separately.

    Best for: Owners of smaller crawl spaces with limited clearance who need a built-in pump and vertical water discharge.

    Not ideal for: Buyers dealing with severe moisture loads or seeking 100-pint-class AHAM performance, and installers who need all mounting accessories included.

    • Capacity:70 pints/day at saturation; 35 pints/day at AHAM
    • Coverage area:Up to 1,000 sq. ft.
    • Pump discharge height:Up to 19.6 ft.
    • Airflow capacity:126 CFM
    • Power:323 W
    • Voltage:115 V
    • Dimensions:16.1 × 11.8 × 13.1 in.
    • Features:Built-in pump, automatic defrost, GPP mode, automatic restart
    • Warranty:6-year limited warranty; first 2 years full coverage
    Our verdict

    “Pick the Helios MP35 for a compact crawl space that needs pumped drainage, but skip it when high AHAM capacity is the priority.”

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11. AlorAir Sentinel HD55 Commercial Crawlspace Dehumidifier

    

    Best for Cooler Crawl Spaces

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    I’d choose the Sentinel HD55 when a crawl space needs dedicated drainage and can’t count on warm operating conditions. Its auto defrost is a useful distinction from the higher-capacity VEVOR 100-Pint: the AlorAir is rated for operation up to 104°F and is positioned for crawl-space use, while the VEVOR emphasizes greater extraction and airflow. At 53 pints per day under AHAM conditions, the HD55 is not a true 100-pint-class option, so it may be undersized for a very damp or expansive space. Automatic drainage also means there’s no bucket to empty, but buyers need a suitable drain setup, and the remote control is optional. Its metal casing and six-year limited warranty add reassurance for a fixed installation, though the 120 CFM airflow is modest beside the VEVOR’s 237 CFM.

    Pros:

    • Auto defrost supports use in cooler crawl-space conditions.
    • Automatic drainage avoids routine bucket emptying.
    • Metal casing suits a fixed utility-space installation.
    • Six-year limited warranty is longer than the Airecoler Stellar S10’s five-year limited warranty.

    Cons:

    • AHAM capacity is 53 pints per day, well below the 100-pint VEVOR and AprilAire options.
    • No built-in water tank, so it depends on a drain connection.
    • Remote control is optional rather than included.

    Best for: Crawl-space owners with moderate moisture loads who want automatic drainage, cold-condition defrost, and a compact metal unit.

    Not ideal for: Buyers seeking AHAM-rated output near 100 pints per day or those without a practical route for continuous drainage.

    • AHAM capacity:53 pints per day
    • Capacity at saturation:113 pints per day
    • Coverage area:1,200 sq. ft.
    • Airflow:120 CFM
    • Power:460 watts; 115 V
    • Dimensions:19.2 × 12.2 × 13.3 in.
    • Weight:41.7 lbs
    • Drainage and filter:Automatic drainage; MERV-1 filter
    • Warranty:6-year limited
    Our verdict

    “Choose the Sentinel HD55 for a cooler, moderately damp crawl space with a drain available, but skip it if you need 100-pint-class AHAM capacity.”

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12. VEVOR Commercial Dehumidifier, 100 Pints per Day, with Drain Hose

    

    Best for High-Output Crawl Spaces

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    The VEVOR 100-Pint is the clearest fit here when a large crawl space has a heavy moisture load and the buyer prioritizes extraction over easy handling. Its stated 100 pints per day at AHAM conditions and 237 CFM airflow put it ahead of the 53-pint AlorAir Sentinel HD55 on rated capacity and air movement. Three fan speeds, adjustable humidity settings, and a timer give more operating control than the simpler HD55, while automatic defrost supports use in cooler conditions. The tradeoff is physical: at 80 pounds and over 23 inches long, it can be awkward to carry through a crawl-space hatch or position under low joists. Its 1,053-watt draw is also substantial, so this is better suited to a demanding, planned installation than to a small space with modest dampness.

    Pros:

    • 100-pint AHAM capacity suits heavier moisture loads than the AlorAir Sentinel HD55.
    • 237 CFM airflow and three fan speeds provide flexible air movement.
    • Continuous drainage with included drain hose avoids manual tank emptying.
    • Automatic defrost, LCD display, timer, and memory function add practical operating controls.

    Cons:

    • At 80 pounds, placement and servicing can be difficult in a confined crawl space.
    • Large dimensions may not fit through tight access points or under low clearance.
    • Its 1,053-watt rating is comparatively high for ongoing operation.

    Best for: Owners of large or persistently damp crawl spaces who need high rated output, adjustable operation, and can place the unit near a drain.

    Not ideal for: People installing through a narrow access hatch or moving the dehumidifier between locations, given its 80-pound weight and large footprint.

    • AHAM capacity:100 pints per day
    • Capacity at saturation:190 pints per day
    • Coverage area:Up to 2,000 sq. ft.
    • Airflow:237 CFM
    • Fan speeds:3
    • Power:1,053 watts; 115 V
    • Dimensions and weight:23.2 × 15.6 × 15 in.; 80 lbs
    • Drainage:Continuous drainage with drain hose
    • Certification:CSA listed
    Our verdict

    “Pick the VEVOR when a large, wet crawl space needs high output and has room for a heavy unit, but choose a smaller model for tight access.”

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13. AprilAire E100W Smart Wi-Fi Whole-House Dehumidifier, 100-Pint, with Pump, Drain Hose, Hanging Kit, and MERV 11 Filter

    

    Best Smart-Connected Pick

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    I’d favor the AprilAire E100W when crawl-space humidity is part of a broader whole-home moisture plan and remote monitoring matters. Its built-in Wi-Fi and app control set it apart from the non-connected AprilAire E100, while the included pump, hose, and hanging kit give installers several ways to route condensate and position the unit. ENERGY STAR certification and a washable MERV 8 filter, plus a MERV 11 replacement filter, make it a more filtration-focused choice than the VEVOR, whose listed features center on high airflow and commercial operation. There are two cautions: the supplied coverage figures conflict at 4,400 and 5,500 square feet, and the MERV 11 filter needs replacement every six months. The description gives 100-pint capacity but not an AHAM condition, so I wouldn’t treat that figure as directly comparable to VEVOR’s AHAM rating.

    Pros:

    • Built-in Wi-Fi and app control allow humidity monitoring and adjustments remotely.
    • Included condensate pump, hose, and hanging kit support varied installation plans.
    • ENERGY STAR certified, with washable MERV 8 and MERV 11 filtration options.
    • Corrosion-resistant aluminum coils are suited to moisture-control equipment.

    Cons:

    • Listed coverage is inconsistent: 4,400 versus 5,500 sq. ft.
    • MERV 11 filter requires replacement every six months.
    • The description does not specify the test conditions behind its 100-pint capacity.

    Best for: Homeowners who want app-based humidity monitoring, included pump hardware, and a crawl-space unit that can also support whole-home moisture control.

    Not ideal for: Buyers who need clearly stated, directly comparable AHAM capacity or a consistent coverage-area specification before choosing equipment.

    • Moisture removal:Up to 100 pints per day
    • Listed coverage:Up to 4,400 or 5,500 sq. ft. (description figures conflict)
    • Connectivity:Built-in Wi-Fi; AprilAire Connect app
    • Certification:ENERGY STAR
    • Filters:Washable MERV 8 filter and MERV 11 replacement filter
    • Included installation items:Condensate pump, drain hose, and hanging kit
    • Coil material:Corrosion-resistant aluminum
    • Warranty:5 years
    • Origin:Designed and assembled in the USA
    Our verdict

    “Choose the E100W if app monitoring and flexible pumped installation matter more than having an unambiguous capacity and coverage specification.”

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14. Airecoler Stellar S10 70-Pint Commercial Dehumidifier

    

    Best Compact Remote-Control Option

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    The Airecoler Stellar S10 is a sensible middle-capacity choice for a smaller crawl space where unit size and convenient control matter more than reaching 100 pints per day. At about 15.5 inches long and 40.5 pounds, it is easier to fit and handle than the 80-pound VEVOR, though it still may be cumbersome to move through a tight access opening. Its detachable remote can be operated from outside the crawl space, a convenience the AlorAir Sentinel HD55 lacks unless you add its optional remote. The main qualification is capacity: the stated maximum is 70 pints per day, but the product data also gives 24.43 pints per day at 65°F and 60% RH. That makes it a less certain match for severe dampness than the VEVOR or either AprilAire 100-pint model. Gravity drainage also requires a drain positioned to accept the hose.

    Pros:

    • Compact listed dimensions make placement easier than with the larger VEVOR.
    • Detachable remote lets users adjust settings without entering the crawl space.
    • ENERGY STAR certification and 450-watt rating support energy-conscious operation.
    • Continuous gravity drainage, automatic defrost, and automatic restart reduce routine attention.

    Cons:

    • The 70-pint maximum differs sharply from the stated 24.43 pints per day at 65°F and 60% RH.
    • Gravity drainage depends on a suitable drain location and hose routing.
    • At 40.5 pounds, it is still not effortless to carry through confined access.

    Best for: Owners of crawl spaces up to about 1,000 sq. ft. who want a smaller metal unit, remote operation, and a gravity-drain setup.

    Not ideal for: Buyers dealing with severe moisture or needing confirmed 100-pint-class output, or anyone who cannot route a gravity drain.

    • Maximum capacity:Up to 70 pints per day
    • Capacity at 65°F and 60% RH:24.43 pints per day
    • Coverage area:Up to 1,000 sq. ft.
    • Dimensions:15.51 × 13.15 × 12.28 in.
    • Weight:40.5 lbs
    • Power:450 watts; 120 V
    • Airflow:206 CFM
    • Drainage:Continuous gravity drainage; 6.56 ft hose included
    • Warranty:5-year limited
    Our verdict

    “Choose the Stellar S10 for a smaller crawl space where remote control and compact dimensions are priorities, not for the heaviest moisture loads.”

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15. AprilAire E100 Whole-House Dehumidifier with Pump and Hanging Kit

    

    Best for Whole-Home Integration

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    The AprilAire E100 is the better fit when a crawl space is one part of a whole-home humidity system, rather than the only space being treated. It offers up to 100 pints per day, digital humidity controls, a washable MERV 8 filter, and a condensate pump with hanging kit. Compared with the E100W, it forgoes Wi-Fi and the listed MERV 11 replacement filter, but its stated six-year warranty is longer than the E100W’s five years. The VEVOR is a more straightforward commercial option with a stated AHAM capacity and higher listed airflow; AprilAire instead brings whole-house positioning, filtration, and installation accessories. This unit still needs a workable condensate route and may require connection to existing ductwork. Its 5,500-square-foot coverage claim is broad, but crawl-space fit depends on the actual space and installation plan.

    Pros:

    • Up to 100 pints per day for whole-home and crawl-space moisture control.
    • Included condensate pump and hanging kit offer installation flexibility.
    • Washable MERV 8 filter and digital humidity controls support ongoing operation.
    • Six-year warranty exceeds the E100W’s listed five-year warranty.

    Cons:

    • Drain connection and possible ductwork requirements make installation more involved than a simple portable setup.
    • No Wi-Fi connectivity is listed, unlike the AprilAire E100W.
    • The listed 100-pint capacity does not specify AHAM test conditions.

    Best for: Homeowners planning a whole-house humidity system who want 100-pint-class stated capacity, a pump, and hanging hardware.

    Not ideal for: Buyers who need Wi-Fi controls, a clearly stated AHAM test rating, or a standalone unit requiring no drainage or ductwork planning.

    • Moisture removal capacity:Up to 100 pints per day
    • Coverage area:Up to 5,500 sq. ft.
    • Recommended relative humidity:40–60%
    • Filter:Washable MERV 8
    • Refrigerant:R32
    • Drainage:Bucketless; includes condensate pump
    • Included accessories:Pump, tubing, and hanging kit
    • Warranty:6 years (5-year full replacement plus 1-year parts)
    • Assembly:Designed and assembled in the USA
    Our verdict

    “Choose the E100 for a planned whole-home installation with crawl-space coverage, but select the E100W if app monitoring is a priority.”

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How We Picked

I ranked these options by how well their stated capacity and intended use align with crawl space moisture control, then weighed practical ownership factors: drainage method, controls, installation options, and maintenance features. A unit designed for crawl spaces earned a stronger fit than a general commercial or whole-house model when the listed features suggested simpler below-floor use. I also distinguished direct 100-pint options from smaller units and higher-capacity alternatives so the list serves buyers with different moisture loads, rather than treating capacity alone as a quality score.

The order reflects fit for the stated search, versatility, and the usefulness of the available features for common crawl space setups. The DECIUU 100-Pint leads as a direct capacity match; smart and premium whole-house models follow for buyers who value specific controls or broader coverage. Smaller-capacity options rank as alternatives for less demanding spaces, while larger commercial units suit buyers who need more removal capacity and can accommodate their installation demands. Product names and specifications are based on the supplied model information; buyers should confirm current manufacturer details, operating requirements, and installation clearances before purchase.

Factors to Consider When Choosing 100 Pint Dehumidifier For Crawl Space

Choosing a crawl space dehumidifier is less about chasing the biggest pint rating and more about matching the unit to moisture conditions and the way water can leave the space. I’d use these factors to narrow the shortlist before comparing accessories or smart features.

Match Capacity to Moisture Load, Not Just Floor Area

A capacity figure describes moisture removal under specified test conditions, not a guarantee that a unit will control every crawl space of a given size. Climate, ground moisture, air leakage, standing water, and insulation all affect the load. A damp space with water intrusion may overwhelm a dehumidifier regardless of its rating, so correct drainage and moisture repairs come first. For a relatively stable space, a 70-pint model may be sufficient; a persistent or more demanding load can justify a 100-pint or larger option. Avoid buying a 155-pint machine solely because the crawl space is large, since extra capacity may bring greater equipment demands without fixing the underlying source of water. Compare stated coverage and capacity, but treat both as screening figures rather than sizing guarantees.

Plan the Water Route Before Choosing a Pump

Every dehumidifier needs a dependable way to discharge collected water, and crawl spaces do not always offer a convenient floor drain. A gravity-drain hose is simple when it can maintain a continuous downward slope to an appropriate outlet. If the drain sits higher than the unit or the hose must run upward, a built-in pump can make installation possible, but it adds another component and a route for pumped water. Check the hose length, discharge height, outlet location, and access for clearing or inspection before settling on a model. A pump does not solve blocked drainage or poor placement, and a hose included in the package still has to fit the site. Sketching the full route first can prevent a unit from arriving without a workable discharge plan.

Check Crawl Space Access and Service Clearance

Measure the access opening and the actual area where the unit will sit, including room for hoses, cords, and air movement. A model may have a suitable capacity but be difficult to bring through a narrow hatch or position around ductwork and floor supports. Hanging kits can help when floor space is limited, but suspended installation requires a suitable structure and practical access for service. Leave room to reach controls, filters, drain connections, and any components that need periodic cleaning. A tight fit can turn routine maintenance into a difficult job or restrict airflow. Compare installation instructions and dimensions with the crawl space itself, not only with the available floor area.

Separate Crawl Space Units From Whole-House Systems

Crawl space-focused models are generally the more direct match when the problem is below the home, while whole-house models are designed to serve broader humidity-control needs. A whole-house unit may be attractive if the goal includes managing humidity beyond the crawl space, but that does not make it automatically easier to install beneath a floor. Ducting, placement, drainage, controls, and service access can differ between system types. Before buying, decide whether you want a dedicated crawl space appliance or a unit integrated with the home’s air system. Avoid assuming that a whole-house label means the unit can be placed in any crawl space without added installation work. The right choice depends on the intended coverage and the setup you can support.

Weigh Smart Features Against Local Controls

Wi-Fi monitoring can help when the crawl space is hard to visit, but connectivity is useful only if the signal reaches the unit and the app supports the functions you need. A clear onboard humidistat and straightforward controls may matter more in a space where remote access is unreliable. Look for a target humidity setting, automatic restart behavior, and controls that remain accessible after installation. Smart features do not replace checking for leaks, confirming drainage, or monitoring conditions during seasonal changes. Buyers who want remote status updates may value connected models; those who want a simpler setup can focus on dependable local operation. Decide which controls you will actually use before paying extra for features that may be difficult to access below the home.

Account for Maintenance, Noise, and Power

Before choosing a unit, check its electrical requirements and the location of a suitable outlet; crawl spaces can have limited or inconvenient power access. Ask how filters are accessed and cleaned, whether the drain path needs regular inspection, and whether the unit needs a clear airflow path. Noise may matter if the equipment sits near living areas or is connected to ductwork, though crawl space placement can reduce its impact. A larger commercial model may offer more capacity but can be harder to position and service in a confined area. Also look for operating limits suited to the expected temperature and humidity conditions, since performance can vary with the environment. Planning these details can make a moderate-capacity unit a better long-term fit than a more powerful model that is awkward to maintain.

Frequently Asked Questions

Do I need exactly 100 pints per day for my crawl space?

No. A 100-pint rating is a useful starting point, not a universal requirement for every crawl space. A smaller, drier space may be served by one of the 70-pint models in this roundup, while severe or persistent moisture may call for a higher-capacity option. Fix leaks, standing water, and ground moisture sources before relying on capacity alone. Use the manufacturer’s sizing guidance alongside the space’s conditions and the unit’s intended application.

Should I choose a crawl space model or a whole-house dehumidifier?

Choose based on where you need humidity control and how the unit will be installed. Crawl space models are the more direct match for moisture below the home, while the AprilAire E100 options are positioned for whole-house use. A whole-house unit may suit a broader system plan, but it can involve different placement or ducting needs. Confirm installation instructions and service access before treating one type as a substitute for the other.

Is a built-in pump worth choosing if I have a drain hose?

A pump is useful when water must be discharged upward or to a drain that is not lower than the unit. If a suitable drain sits below the dehumidifier and the hose can maintain a steady downward slope, gravity drainage may be simpler. Check how far the water must travel and where it will exit before deciding. A pump adds flexibility, but the discharge route still needs to be accessible and kept clear.

Can I use a 70-pint model instead of a 100-pint unit?

Possibly, if the crawl space has a moderate moisture load and the model’s stated coverage and operating conditions match the site. The 70-pint options here can be sensible alternatives when a full 100-pint capacity is unnecessary or the installation space is limited. They may be a poor fit for persistent dampness, frequent water intrusion, or conditions that exceed the manufacturer’s guidance. Address moisture sources first, then compare capacity with the actual load rather than choosing by floor area alone.

What should I verify before ordering a commercial dehumidifier for a low crawl space?

Measure the access hatch, installation area, and clearance needed for airflow and service. Confirm the unit’s dimensions, weight, operating requirements, drain or pump route, and any limits tied to temperature or placement. Check whether the product is intended for crawl space use or is a general commercial model that may need a different setup. If you plan to hang it, verify that the structure and included or compatible mounting hardware suit the installation. A capacity match is not enough if the unit cannot be moved in, positioned safely, or maintained later.

Conclusion

For most shoppers seeking a direct 100-pint crawl space match, I’d start with the DECIUU 100-Pint. Buyers who want a broader home humidity system should compare the AprilAire E100 models, while the AprilAire E100W is the premium choice for those who value Wi-Fi, a pump, and its listed accessories. For beginners, I’d favor a crawl space-focused model with a drainage plan that is easy to understand and maintain rather than a larger commercial unit with more installation demands. The best value in fit may be a 70-pint option such as the AIUSEVO 70-Pint or AlorAir Helios MP35 when the space’s moisture load is modest; choosing a lower capacity can avoid oversizing. For severe moisture loads or larger demanding spaces, compare the 120- to 155-pint options, especially the ALORAIR Smart Wi-Fi 120-Pint or Airzentti 155-Pint, after confirming that the site can accommodate their size, drainage, and service needs. My final choice would depend on measured conditions and a workable discharge route, not the pint rating alone.