Moiswell 155-Pint Crawl Space Dehumidifier vs Moiswell 120 Pint Dehumidifier (2026): Key Differences
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The moiswell 155 pint crawl space dehumidifier vs 120 pint dehumidifier comparison helps you choose the right unit for your damp space. Both models are Energy Star certified and designed for crawl spaces. They share similar weights and auto restart features. The main difference lies in moisture removal capacity and drainage. The 155-Pint model offers higher max capacity and a compact horizontal design. The 120 Pint model includes a built-in pump for flexible drainage. You should select based on your room size and installation needs.
Key differences
| Aspect | Moiswell 155-Pint Crawl Space Dehumidifier | Moiswell 120 Pint Dehumidifier with Pump |
|---|---|---|
| Moisture Removal Capacity | 155 PPD max, 70 PPD AHAM | 120 PPD max, 53 PPD AHAM |
| Drainage Method | Drain hose, auto drain | Built-in pump, 16.4 ft drain hose |
| Airflow Rate | 265 CFM | 180 CFM |
| Coverage Area | Up to 6,000 sq ft | 1,000 to 4,500 sq ft |
| Design | Horizontal, fits between joists | Standard vertical |
Which one should you choose?
Choose Moiswell 155-Pint Crawl Space Dehumidifier if
- You need to remove up to 155 pints of moisture daily in very damp spaces.
- You require a horizontal unit that fits between floor joists in tight crawl spaces.
- You prefer faster air circulation with a 265 CFM airflow rate.
Choose Moiswell 120 Pint Dehumidifier with Pump if
- You need automatic upward drainage without relying on gravity or external pumps.
- You want a built-in pump with a 16.4 ft hose for flexible installation.
- Your space is smaller, requiring up to 120 pints of daily moisture removal.
Verdict: Choose the 155-Pint model if you have a large, extremely damp space and need a low-profile unit for tight crawl spaces. Select the 120 Pint model if you prioritize the convenience of a built-in pump for drainage and have moderate moisture issues. Both units are Energy Star certified for efficient operation.
155-Pint vs 120-Pint Dehumidifier Comparison
Moisture removal
The Moiswell 155-Pint Crawl Space Dehumidifier offers a higher maximum moisture removal capacity of 155 pints per day. This model also achieves 70 pints per day under AHAM standards. In contrast, the Moiswell 120 Pint Dehumidifier with Pump removes up to 120 pints per day at saturation. It provides 53 pints per day under AHAM testing conditions. If you need to handle extremely damp environments or larger spaces quickly, the 155-pint model provides a clear advantage in raw extraction power. The 120-pint unit remains effective for standard humidity control needs.
Coverage area
Coverage capabilities differ significantly between the two units. The 155-Pint Crawl Space Dehumidifier is rated for large rooms up to 6,000 square feet. This makes it suitable for expansive crawl spaces or open commercial areas. The 120 Pint Dehumidifier with Pump covers a smaller range, from 1,000 to 4,500 square feet. While still powerful for its class, it is better suited for medium-sized basements or workshops. You should choose the 155-pint model if your space exceeds 4,500 square feet to ensure adequate air circulation and drying performance.
Drainage method
Drainage options vary between the two models. The Moiswell 155-Pint Crawl Space Dehumidifier relies on auto drain functionality and a standard drain hose connection. You must position it near a floor drain or use a pump separately if gravity drainage is not possible. The Moiswell 120 Pint Dehumidifier with Pump includes a built-in condensate pump with a 16.4-foot hose. This allows for automatic upward or long-distance drainage without manual intervention. If you need flexible installation in areas without easy access to a floor drain, the pump-equipped model is the superior choice.
Airflow
Air circulation strength impacts drying speed. The 155-Pint Crawl Space Dehumidifier boasts an impressive 265 CFM airflow rate. This high volume of air helps rapidly dry extremely damp spaces and maintains optimal humidity levels efficiently. The 120 Pint Dehumidifier with Pump features a 180 CFM airflow system. While still powerful for commercial-grade use, it moves less air than the 155-pint model. For large, stagnant crawl spaces where air movement is critical, the higher CFM of the 155-pint unit provides a tangible benefit for faster moisture removal.
Design and fit
Both units are designed for tight spaces but differ in dimensions. The 155-Pint Crawl Space Dehumidifier has a sleek horizontal design measuring 22.5 inches in length, 14 inches in width, and 14.7 inches in height. Its compact form fits easily between floor joists. The 120 Pint Dehumidifier with Pump measures 14 inches in length, 21.8 inches in width, and 14.9 inches in height. It is slightly taller but narrower in length. Depending on the specific orientation of your joists or clearance constraints, one shape may fit better than the other in your unique crawlspace layout.
Which Moiswell Dehumidifier Fits Your Crawl Space
You need maximum moisture removal in large areas
The 155-Pint model removes up to 155 pints daily, handling spaces up to 6,000 square feet. Its 265 CFM airflow circulates air faster than the 120-Pint version. This higher capacity and airflow make it the better choice for extremely damp environments or larger crawl spaces requiring rapid drying.
You prefer gravity drainage over a built-in pump
This unit uses a standard drain hose for auto drainage without a pump mechanism. It relies on gravity for water removal, which simplifies installation if you have a suitable floor drain. The horizontal design fits between floor joists easily, making it ideal for tight crawl spaces where pump maintenance is a concern.
You need to pump water upward to a drain
The 120-Pint model includes a built-in condensate pump with a 16.4-foot hose. This allows you to drain water upward or over long distances, which is essential if your floor drain is not at the lowest point. The pump ensures continuous operation without manual emptying, offering flexible installation options in complex crawl spaces.
The products compared
Moiswell 155-Pint Crawl Space Dehumidifier
Best for: tight crawl spaces and floor joists
- Moisture Removal Capacity
- 155 PPD (70 PPD AHAM)
- Drainage Method
- Auto drain, drain hose
- Energy Star Certification
- Energy Star
- Room
- Basement, Crawl Space
- Features
- Auto Defrost
- Dimensions
- 22.5 × 14 × 14.7 inches
View on Amazon: Moiswell 155-Pint Crawl Space Dehumidifier Affiliate link
The Moiswell M145 is a horizontal dehumidifier built for tight crawl spaces. It measures 22.5 by 14 by 14.7 inches to fit between floor joists. It removes up to 155 pints of moisture daily in max conditions, or 70 pints per day by AHAM standards. It covers areas up to 6,000 square feet. The unit is Energy Star certified and includes auto drain and defrost features. You get a five-year limited warranty with this model.
Pros
- Horizontal design fits between floor joists
- 155-pint max moisture removal capacity
- Energy Star certified efficiency
- Auto drain and defrost functions
Cons
- Heavier at 63 pounds
- Limited to 70 pints at AHAM standard
- No remote control mentioned in specs
Good fit if
- You need to fit a unit between floor joists
- You require high capacity for large damp spaces
- You want Energy Star efficiency ratings
Skip if
- You need a vertical unit for open rooms
- You require AHAM certified 155-pint performance
- You prefer a lighter portable appliance
Verdict: Moiswell 155-Pint Crawl Space Dehumidifier fits tight crawl spaces with its horizontal build and high max capacity, making it ideal for homeowners needing robust moisture control in confined areas.
Moiswell 120 Pint Dehumidifier with Pump
Best for: Large crawl spaces requiring automatic drainage
- Moisture Removal Capacity
- 120 PPD (53 PPD AHAM)
- Coverage Area
- Up to 4,500 sq. ft.
- Drainage Method
- Built-in pump, drain hose
- Energy Star Certification
- Energy Star
- Connectivity
- Smart control panel
- Room
- Basement, Crawl Space
View on Amazon: Moiswell 120 Pint Dehumidifier with Pump Affiliate link
This Moiswell unit removes up to 120 pints of moisture daily, certified by Energy Star for efficiency. It includes a built-in pump with a 16.4 ft hose for automatic drainage, eliminating manual emptying. The device covers spaces from 1,000 to 4,500 sq ft with 180 CFM airflow. You get smart control via the panel, including timers and auto-defrost. This model suits large commercial or residential areas needing reliable humidity management.
Pros
- 120 Pint daily moisture removal capacity
- Built-in condensate pump with 16.4 ft hose
- Energy Star certified with 2.01 L/kWh efficiency
- Covers up to 4,500 sq ft area
- Smart control panel with cycle timer
Cons
- Heavier at 63.2 pounds than smaller models
- Larger footprint at 21.8 inches wide
- No smart app connectivity mentioned
Good fit if
- You need automatic drainage for a crawl space
- You require coverage for areas over 1,000 sq ft
- You want Energy Star certified efficiency
Skip if
- You prefer a compact unit under 50 pounds
- You need mobile app control for remote monitoring
- You only need to dehumidify small rooms
Verdict: Moiswell 120 Pint Commercial Dehumidifier fits users needing heavy-duty moisture removal and automatic pumping for large spaces. It is ideal for crawl spaces where manual draining is impractical.
Specifications side by side
| Spec | Moiswell 155-Pint Crawl Space Dehumidifier | Moiswell 120 Pint Dehumidifier with Pump |
|---|---|---|
| Moisture Removal Capacity | 155 PPD (70 PPD AHAM) | 120 PPD (53 PPD AHAM) |
| Coverage Area | not stated | Up to 4,500 sq. ft. |
| Drainage Method | Auto drain, drain hose | Built-in pump, drain hose |
| Energy Star Certification | Energy Star | Energy Star |
| Connectivity | not stated | Smart control panel |
| Capacity | not stated | 120 Pint |
| Room | Basement, Crawl Space | Basement, Crawl Space |
| Features | Auto Defrost | Energy Star, Pump, Auto Defrost |
| Dimensions | 22.5 × 14 × 14.7 inches | 14 × 21.8 × 14.9 inches |
| Weight | 63 pounds | 63.2 pounds |
| Size | 155 Pints | 120 Pints with Pump |
| Color | White | Black & White |
| Model | Defender M145 | Aegis HP110 |
Frequently asked questions
Which Moiswell dehumidifier is better for tight crawl spaces?
The Moiswell 155-Pint Crawl Space Dehumidifier is the better choice for tight spaces. Its horizontal design measures 22.5 inches in length, 14 inches in width, and 14.7 inches in height. This compact footprint allows it to fit easily among floor joists and in confined areas where larger units cannot fit.
Does the 120-Pint model have an automatic drain pump?
Yes, the Moiswell 120 Pint Dehumidifier with Pump includes an automatic drain pump. This feature allows you to remove moisture without manual intervention, which is ideal for large crawl spaces. The 155-Pint model does not list this specific pump feature in its specifications, so you would need to manage drainage differently.
How much space does each unit take up?
The 155-Pint model is 22.5 inches long, 14 inches wide, and 14.7 inches high. It weighs 63 pounds. The 120-Pint model is 14 inches long, 21.8 inches wide, and 14.9 inches high. It weighs 63.2 pounds. Both units are relatively similar in weight, but their dimensions differ significantly.
What is the difference in moisture removal capacity?
The 155-Pint model removes up to 155 pints of moisture per day. The 120-Pint model removes 120 pints per day. The 155-Pint version also achieves 70 pints per day under AHAM standards. This higher capacity makes the 155-Pint unit more suitable for very damp environments or larger square footage.
Are both units Energy Star certified?
Yes, both the Moiswell 155-Pint and the 120-Pint models are Energy Star certified. This certification indicates they meet specific energy efficiency guidelines. You can expect both units to operate efficiently while managing humidity levels in your crawl space without excessive power consumption.
Which model is heavier?
The Moiswell 120 Pint Dehumidifier with Pump is slightly heavier at 63.2 pounds. The 155-Pint Crawl Space Dehumidifier weighs 63 pounds. The difference is minimal, so both units will require similar effort to move if you need to reposition them within your crawl space.
Can the 120-Pint unit handle large areas?
The 120-Pint model is designed for large crawl spaces requiring automatic drainage. While the 155-Pint model handles up to 6,000 square feet, the 120-Pint version is ideal for heavy-duty moisture removal where manual draining is impractical. Its built-in pump facilitates continuous operation in larger, harder-to-access areas.