Choosing the right commercial dehumidifier for a grow room hinges on capacity, efficiency, and ease of use. The Mounto 310 Pints LGR stands out for its high moisture removal rate and built-in pump, making it ideal for large, water-prone environments. Meanwhile, the 250 Pint Dehumidifier offers a balanced mix of power and portability, suitable for spaces up to 8,000 sqft. Both models trade some features for affordability or size, so understanding their differences will help you pick the best fit for your grow operation.
Key Takeaways
- The Mounto 310 Pints LGR is best for large, water-damaged or restoration-heavy environments thanks to its high capacity and built-in pump.
- The 250 Pint Dehumidifier provides a good balance for sizable grow rooms up to 8,000 sqft, with user-friendly controls and portability.
- Both models feature automatic drainage, but Mounto’s pump supports greater vertical lift, reducing maintenance.
- The primary tradeoff is size and weight; Mounto is heavier and more suited for stationary setups, while the 250 Pint is easier to move.
- Cost and energy efficiency vary, with Mounto being more power-efficient at high moisture loads, but at a higher upfront price.
| MOUNTO 310 Pints LGR Commercial Dehumidifier with Built-In Pump and Drain Hose |  | Best Overall for Large, Water-Intensive Grow Rooms | Capacity: 310 PPD | Tank Volume: 10 Pints | Power Consumption: 1150 Watts | VIEW LATEST PRICE | See Our Full Breakdown |
| 250 Pint Commercial Dehumidifier with Pump 8000sqft |  | Best for Balanced Power and Portability | Capacity: 110 PPD (AHAM) | Area Coverage: Up to 8,000 sqft | Power Consumption: Approx. comparable to Mounto | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
MOUNTO 310 Pints LGR Commercial Dehumidifier with Built-In Pump and Drain Hose
The Mounto 310 Pints LGR excels in moisture removal, capable of extracting up to 310 PPD, making it ideal for very large grow spaces with high humidity. Its built-in pump with a 15-foot lift simplifies continuous drainage, especially in basements or below-grade areas. Compared to smaller units, it offers superior capacity and efficiency, but this comes with a weight of 125 pounds and a higher initial cost. Its digital controls allow precise humidity management, which is critical in a grow room setting. The main tradeoff is its size and power consumption, which might be overkill for smaller setups. If you need high performance and minimal maintenance in a large-scale environment, this model delivers reliably.
Pros:- High moisture removal capacity of 310 PPD
- Built-in condensate pump with 15-foot lift
- Digital humidistat for precise control
- Automatic restart after outages
Cons:- Heavy and less portable
- Higher energy consumption and cost
- Larger footprint may require dedicated space
Best for: Large grow rooms, water damage restoration, and environments requiring continuous moisture removal
Not ideal for: Small, portable setups or budget-conscious growers
- Capacity:310 PPD
- Tank Volume:10 Pints
- Power Consumption:1150 Watts
- Air Flow:550 CFM
- Dimensions:22″D x 23″W x 35″H
- Weight:125 Pounds
Bottom line: This dehumidifier is the top choice for large, water-heavy grow rooms needing reliable, continuous moisture control.
250 Pint Commercial Dehumidifier with Pump 8000sqft
The 250 Pint Commercial Dehumidifier offers a solid 110 PPD in AHAM conditions, making it well-suited for grow rooms up to 8,000 sqft. Its built-in pump with a 16.5-foot hose simplifies drainage, and its compact size allows for easier movement—especially with large wheels and a sturdy handle. Compared to Mounto, it consumes slightly more energy at maximum capacity but is more portable and easier to install in various locations. Its digital controls include auto restart, timer functions, and auto defrost, giving growers flexible operation. The main drawback is the slightly lower moisture capacity, which could be insufficient in very humid or water-prone environments. For grow rooms needing a mix of power and mobility, this model makes a compelling choice.
Pros:- Effective dehumidification for large spaces
- Built-in pump with 16.5 ft drainage hose
- Easy-to-use digital controls with auto features
- Portable with large wheels and handle
Cons:- Lower capacity than Mounto for extreme environments
- Slightly higher energy use at max capacity
- Size still substantial but more mobile
Best for: Grow rooms up to 8,000 sqft, spaces requiring flexible placement, and fast moisture reduction
Not ideal for: Very water-heavy environments or those needing ultra-high capacity
- Capacity:110 PPD (AHAM)
- Area Coverage:Up to 8,000 sqft
- Power Consumption:Approx. comparable to Mounto
- Air Flow:370 CFM
- Dimensions:21.6″W x 19″D x 33″H
- Weight:Approx. 70 pounds
Bottom line: This model strikes a good balance for grow rooms that need reliable moisture control with easy relocation and operation.
How We Picked
Our selection process focused on capacity, reliability, ease of operation, and suitability for grow rooms. We compared dehumidifiers rated for large spaces, emphasizing models with automatic drainage, digital controls, and robust build quality. Features like portability, energy consumption, and user reviews also played key roles, ensuring each pick offers distinct advantages for different grow room scenarios.
Factors to Consider When Choosing Best Commercial Dehumidifier For Grow Room
When choosing a commercial dehumidifier for a grow room, key considerations include capacity, drainage options, portability, and control features. Large, humid environments demand units with high moisture removal rates and reliable automatic drainage to minimize maintenance. Ease of movement and digital controls help optimize operation, especially if your space varies or expands. Energy consumption and size are also factors, as larger units can require dedicated space and power supply. Understanding these aspects will ensure you select a dehumidifier that meets your specific grow room needs efficiently.
Capacity and Coverage
The first step is to assess your grow room’s size and humidity levels. Larger spaces or more humid environments require higher capacity units, typically rated in pints per day (PPD). For most grow rooms over 2000 sqft, a dehumidifier with at least 110 PPD is advisable. For extensive or water-intensive setups, units like Mounto’s 310 Pints can handle heavy moisture loads effectively. Smaller or less humid spaces may do well with lower-capacity models, but always aim for a buffer to ensure consistent humidity control.
Drainage and Maintenance
Automatic drainage features, such as built-in pumps, significantly reduce maintenance by eliminating manual tank emptying. For grow rooms where humidity and water accumulation are high, a pump supporting vertical lift—like Mounto’s 15-foot pump—can streamline operation. Check hose length and drainage height capabilities to match your space layout. Manual drainage options are less convenient but may suffice for smaller, less water-prone environments. Prioritize units with easy access filters and simple maintenance protocols to keep your grow operation running smoothly.
Portability and Controls
Grow rooms often require flexible placement, so portability features such as wheels and handles matter. Digital controls, including humidity setpoints, auto restart, and timers, enable precise climate management, which is vital for plant health. The ability to move the unit effortlessly can be a game-changer if your space shifts or expands. Units with quieter operation can also reduce noise disruption, especially in shared or residential spaces. Balance these features against size and weight to find a model that fits your operational style.
Energy Efficiency and Cost
Energy consumption varies among models, impacting operational costs over time. High-capacity models like Mounto typically operate more efficiently at high moisture loads, but come with a higher initial investment. Smaller, portable units may cost less upfront but could consume more energy or require more frequent maintenance. Consider your long-term budget—investing in a reliable, efficient unit can save money and effort down the line. Always compare wattage and operational features to gauge overall value.
Frequently Asked Questions
What size dehumidifier do I need for my grow room?
The ideal dehumidifier size depends on your grow room’s square footage and humidity levels. For rooms up to 2,000 sqft, a unit rated around 70-110 PPD may suffice. Larger spaces or environments with high water vapor, such as water-heavy grow setups, benefit from higher-capacity models like the Mounto 310 Pints, which can handle 310 PPD. Always choose a unit with a capacity that exceeds your room’s needs to maintain stable humidity without overworking the machine.
Is automatic drainage necessary in a grow room dehumidifier?
Yes, automatic drainage simplifies maintenance, especially in grow rooms where humidity can produce significant water runoff. Units with built-in pumps, like the Mounto and the 250 Pint model, allow continuous operation without manual tank emptying. This feature reduces downtime and ensures consistent moisture control, which is crucial for healthy plant growth and preventing mold or mildew.
How important are digital controls for grow room dehumidifiers?
Digital controls are essential for precise humidity management. They enable setting target levels, automatic operation, timers, and auto restart after outages. These features help maintain optimal growing conditions, prevent over-drying, and reduce manual intervention. Clear displays and intuitive interfaces make adjustments straightforward, saving time and reducing operational errors.
Can a portable dehumidifier handle a large grow room?
Portable units like the 250 Pint model are suitable for large grow rooms up to 8,000 sqft, provided their capacity matches your humidity levels. Features like large wheels and handles facilitate movement, but keep in mind size and noise levels. For extremely water-heavy environments, a larger, stationary unit like Mounto’s may be more effective, although less portable.
What is the most energy-efficient dehumidifier for a grow room?
The Mounto 310 Pints stands out for its high efficiency at removing large amounts of moisture while consuming less power per pint compared to smaller units. Its COP (Coefficient of Performance) indicates excellent energy use, making it a smart choice for continuous operation. Though initially more expensive, its efficiency can lead to savings in electricity costs over time.
Conclusion
If your grow room is large or prone to water accumulation, the Mounto 310 Pints offers unmatched capacity and automation, making it ideal for water-heavy environments. For growers seeking a balance of power, portability, and user-friendly controls in spaces up to 8,000 sqft, the 250 Pint Dehumidifier provides excellent value. Smaller or budget-conscious growers with less water exposure might consider lower-capacity models, but for most large-scale grow operations, investing in a high-capacity, automatic drainage unit will ensure consistent, hassle-free humidity control.
