how do i choose a commercial dehumidifier

Imagine walking into a bustling office building on a humid summer day. The air feels thick and sticky, making everyone uncomfortable and less productive. This scenario plays out in many commercial spaces, from hotels to hospitals. Businesses often struggle to find the right solution for controlling moisture levels effectively.

Choosing a commercial dehumidifier can be confusing with so many options available. The key is to select a unit based on the size of your space, the level of humidity, and specific features that meet your needs. Commercial dehumidifiers come in various sizes and types, each designed for different environments and moisture removal capacities.

A good commercial dehumidifier can make a big difference in air quality, energy costs, and overall comfort. It protects buildings from mold and mildew while creating a healthier space for employees and customers. With the right unit, you can say goodbye to damp, musty air and hello to a fresh, inviting atmosphere that boosts productivity and well-being.

Key Takeaways

  • Choose a dehumidifier based on space size and humidity levels
  • Consider features like automatic drainage and digital controls
  • Regular maintenance ensures optimal performance and longevity

Understanding Dehumidifiers

Commercial dehumidifiers are machines that remove excess moisture from the air in large spaces. They help maintain proper humidity levels in buildings like offices, hotels, and warehouses.

These devices work by pulling in damp air and extracting the water. The dry air is then released back into the room. This process keeps indoor spaces comfortable and prevents mold growth.

There are two main types of commercial dehumidifiers:

  • Condensation dehumidifiers: Cool the air to condense moisture
  • Desiccant dehumidifiers: Use special materials to absorb moisture

Key features to look for include:

  • Water removal capacity (measured in pints per day)
  • Coverage area (in square feet)
  • Energy efficiency rating
  • Noise level
  • Drain options

Proper humidity levels are crucial for comfort and building health. The ideal range is typically 30-50% relative humidity. Levels above 60% can lead to mold and mildew issues.

Commercial dehumidifiers come in various sizes to suit different spaces. Larger units can remove over 100 pints of water per day. Smaller ones may handle 30-50 pints daily.

Some models offer extra features like digital controls, auto-restart, and air filtration. These can make the dehumidifier easier to use and more effective.

how to choose a commercial dehumidifier

Assessing Your Space

Properly evaluating your commercial space is crucial for selecting the right dehumidifier. This involves analyzing the area and calculating the coverage needed for effective moisture control.

Commercial Space Analysis

When assessing your commercial space, consider these key factors:

  • Room type: Warehouses, basements, and large open areas have different needs.
  • Ceiling height: Taller ceilings increase the total volume to dehumidify.
  • Moisture sources: Identify areas prone to dampness or water intrusion.
  • Air circulation: Note any obstacles that may impede airflow.
  • Temperature variations: Cold spots can lead to condensation issues.

Create a floor plan marking problem areas and potential dehumidifier locations. This visual aid will help in determining the best placement for optimal performance.

Calculating Area of Coverage

To determine the appropriate dehumidifier size:

  1. Measure the length and width of the space in feet.
  2. Multiply these numbers to get the square footage.
  3. For spaces under 5,000 sq ft, choose a 50-70 pint unit.
  4. For 5,000-10,000 sq ft areas, select a 70-100 pint model.
  5. Spaces over 10,000 sq ft may require multiple units or a large 100+ pint system.

Note: Areas with high humidity might need more powerful units than the square footage suggests. Such as a specialized Basement/Crawl Space Dehumidifier.

Types of Dehumidifiers

Commercial dehumidifiers come in several types, each suited for different environments and needs. These machines use various methods to remove excess moisture from the air in large spaces.

Refrigerant Dehumidifiers

Refrigerant dehumidifiers are common in many commercial settings. They work by cooling air to condense moisture.

  • Use a refrigerant coil to cool incoming air
  • Collect water droplets in a tank or drain
  • Effective in warm, humid conditions

These units perform best in temperatures above 65°F (18°C). They're often used in:

  • Restaurants
  • Hotels
  • Office buildings

Refrigerant models can remove large amounts of moisture daily. Some commercial units extract over 100 pints per day.

Desiccant Dehumidifiers

Desiccant dehumidifiers use materials that absorb moisture from the air. They're ideal for cooler environments.

  • Contain a wheel of moisture-absorbing material
  • Work well in low temperatures
  • Use less energy than refrigerant types

These units are suitable for:

  • Cold storage facilities
  • Pharmaceutical manufacturing
  • Museums

Desiccant dehumidifiers can operate in temperatures as low as -4°F (-20°C). They're often more compact than refrigerant models.

Adsorption Dehumidifiers

Adsorption dehumidifiers use special materials to trap moisture molecules. They're similar to desiccant types but with some key differences.

  • Use silica gel or activated alumina
  • Require less maintenance
  • Work in a wide range of temperatures

These units are often found in:

  • Healthcare facilities
  • Schools
  • Government buildings

Adsorption dehumidifiers are energy-efficient and can handle large spaces. They're quiet, making them good for noise-sensitive areas.

choose a commercial dehumidifier

Key Features and Specifications

When selecting a commercial dehumidifier, several important features and specifications can impact performance and efficiency. These factors help determine the best unit for specific commercial environments.

Dehumidifier Capacity and AHAM Standards

Dehumidifier capacity refers to how much moisture a unit can remove in 24 hours. The Association of Home Appliance Manufacturers (AHAM) sets standards for measuring capacity.

Key points:

  • Capacity is measured in pints per day
  • AHAM ratings are based on 80°F and 60% relative humidity
  • Higher capacities are needed for larger spaces or very humid conditions

Commercial dehumidifiers typically range from 50 to 300 pints per day. A 3,000 square foot space may require a 100-pint unit, while a 10,000 square foot area could need a 300-pint dehumidifier.

Humidistat and Humidity Control

A built-in humidistat allows precise control over humidity levels. This feature is crucial for maintaining optimal conditions in commercial settings.

Benefits of humidistats:

  • Automatic on/off cycling based on humidity levels
  • Adjustable humidity settings
  • Prevention of over-drying

Many units offer digital displays and remote monitoring capabilities. This allows staff to easily check and adjust humidity levels as needed.

Energy Efficiency and Operation Cost

Energy efficiency impacts both environmental sustainability and long-term operating costs. Look for ENERGY STAR certified models when possible.

Factors affecting efficiency:

  • Compressor type and size
  • Fan speed options
  • Automatic defrost systems

Some units feature low-temperature operation, which reduces energy use in cooler environments. Variable fan speeds can also help optimize energy consumption based on current conditions.

Consider the cost of replacement filters and other maintenance needs when calculating total operation expenses. High-efficiency models may have a higher upfront cost but can lead to significant savings over time.

Health, Safety, and Comfort

Commercial dehumidifiers play a key role in maintaining healthy indoor environments. They help control moisture levels, which is crucial for preventing mold and mildew growth.

Mold can cause respiratory issues and allergic reactions in building occupants. By keeping humidity in check, dehumidifiers reduce the risk of these health problems.

Improved air quality is another benefit. Dehumidifiers remove excess moisture from the air, making it feel less stuffy and more comfortable to breathe.

In commercial settings like hotels and offices, proper humidity control contributes to occupant comfort. It helps create a pleasant atmosphere for guests and employees alike.

Some key health and safety benefits include:

  • Reduced risk of slip-and-fall accidents from damp floors
  • Lower chance of electrical hazards due to moisture
  • Improved indoor air quality for those with asthma or allergies
  • Prevention of musty odors that can make spaces unpleasant

Dehumidifiers also protect building materials and furnishings from moisture damage. This helps maintain a safe and well-kept environment for all occupants.

Proper humidity levels (typically 30-50%) create more comfortable conditions. This can boost productivity in workplaces and enhance the experience in hospitality settings.

Specialized Industrial Applications

Industrial dehumidifiers play a crucial role in many specialized settings. These powerful machines control moisture levels to protect equipment, ensure product quality, and maintain safe environments.

Warehouses and Manufacturing

In warehouses and factories, humidity control is vital. High moisture can damage stored goods and disrupt production processes.

Industrial dehumidifiers for these spaces:

  • Have high capacity to handle large areas
  • Are durable for continuous operation
  • Include features like auto-defrost and drain pumps

Placement is key. Units should be spread out to cover the full space. Air circulation is important too. Fans help move dry air throughout the facility.

For manufacturing, precise humidity control may be needed. Some processes require specific moisture levels. In these cases, look for dehumidifiers with adjustable humidity settings and digital controls.

Hospitals and Greenhouses

Hospitals and greenhouses have unique humidity needs. In hospitals, low humidity helps prevent bacteria and mold growth. For greenhouses, higher humidity supports plant growth.

Hospital dehumidifiers should:

  • Be quiet to not disturb patients
  • Have HEPA filters to remove airborne particles
  • Be easy to clean and maintain

Greenhouse units need:

  • Corrosion-resistant materials
  • The ability to handle high moisture levels
  • Adjustable settings for different plant needs

Both settings benefit from units with remote monitoring. This allows staff to track humidity levels without constant checks.

Water Damage Restoration

After floods or leaks, quick drying is crucial. Restoration teams use specialized dehumidifiers for water damage to remove moisture fast.

Key features for restoration units:

  • Portability for easy transport
  • High extraction rates to remove water quickly
  • Durability to withstand tough conditions

These dehumidifiers often work alongside air movers. The air movers increase evaporation, while dehumidifiers remove the moisture from the air.

Some units have built-in pumps to continuously drain water. This is helpful for long drying jobs. Look for models with hour meters to track usage time for billing purposes.

choosing a commercial dehumidifier

Convenience and Usability Features

Commercial dehumidifiers offer various features to enhance ease of use and efficiency. These features can significantly impact daily operations and maintenance requirements.

Continuous Drainage Options

Many commercial dehumidifiers come with continuous drainage capabilities. This eliminates the need for manual water bucket emptying.

  • Gravity drainage: Uses a hose to direct water to a floor drain.
  • Condensate pump: Pushes water upwards or over longer distances.

Some models include built-in pumps, while others may require separate pump installations. This feature is especially useful in basements or areas far from drains.

Continuous drainage saves time and effort for staff. It also ensures uninterrupted operation, crucial for maintaining consistent humidity levels in sensitive environments like server rooms or laboratories.

Portability and Design

The design of commercial dehumidifiers affects their mobility and placement options.

Key portability features:

  • Wheels or casters for easy movement
  • Handles for lifting and repositioning
  • Compact size for fitting in tight spaces

Lightweight units are ideal for frequent relocation. Heavier models may offer more power but sacrifice mobility.

Some dehumidifiers have wall-mounting options. This saves floor space in cramped areas like small offices or storage rooms.

Portability is crucial in disaster recovery situations. It allows quick deployment to multiple affected areas in a building.

Noise Level and Quiet Operation

Noise levels are a critical consideration, especially in occupied spaces like offices or hotel rooms.

Typical noise ranges:

  • Low: 45-50 dB (suitable for occupied areas)
  • Medium: 50-60 dB (acceptable for most commercial settings)
  • High: 60+ dB (may require isolation or sound dampening)

Features for quieter operation:

  • Insulated compressors
  • Variable fan speeds
  • Noise-reducing air flow design

Some models offer "night mode" for reduced noise during sensitive hours. This is particularly useful in hospitality settings.

Quieter units may sacrifice some dehumidification power. Balance noise concerns with performance requirements when selecting a model.

Environmental and Operational Conditions

The environment and operating conditions greatly impact a commercial dehumidifier's performance. These factors determine the unit's efficiency and longevity in various settings.

Temperature and Climate Considerations

Commercial dehumidifiers function best within specific temperature ranges. Most units operate effectively between 65°F and 85°F (18°C to 29°C).

Auto defrost is crucial for colder environments. This feature prevents ice buildup on coils, ensuring continuous operation.

Climate zones influence dehumidifier selection:

  • Humid subtropical: Choose units with higher capacity
  • Arid regions: Lower capacity may suffice
  • Coastal areas: Corrosion-resistant models are ideal

Moisture Sources and External Factors

Identifying moisture sources helps in selecting the right dehumidifier. Common sources in commercial settings include:

  • Kitchen steam
  • Shower areas
  • Laundry facilities
  • Outdoor air infiltration

Water leakage and flooding risks require consideration. Units with robust drainage systems and overflow protection are essential.

Condensation control is vital in areas with large temperature fluctuations. Look for models with adjustable humidity settings.

External factors affecting performance:

  • Building ventilation
  • Occupancy levels
  • Equipment heat output

Choose a dehumidifier that can handle these variables effectively.

Maintenance and Warranty

Regular maintenance helps commercial dehumidifiers last longer and work better. Clean or replace air filters monthly. Wipe down the exterior and check for blockages in air vents.

Empty the water collection tank often if there's no built-in pump. For units with pumps, clean the pump and hoses yearly. Check that drain lines aren't clogged.

Many models have automatic defrost to prevent ice buildup. Still, inspect coils for frost in cold areas. Units with low-temperature operation need extra care in freezing conditions.

Look for warranties of 1-5 years on parts and labor. Longer warranties often mean better quality. Some key warranty points:

  • Coverage for compressor and refrigeration system
  • On-site service for large units
  • Availability of replacement parts

Keep maintenance records. This helps with warranty claims and spotting recurring issues. Follow the manual's care instructions to avoid voiding the warranty.

Consider a service contract for critical applications. This ensures regular professional maintenance and quick repairs when needed.

Choosing the Best Commercial Dehumidifier

Selecting the right commercial dehumidifier involves comparing performance ratings, reading reviews, and considering budget constraints. These factors help businesses find a unit that effectively controls moisture in their specific commercial space.

Assessing Performance and Reviews

When evaluating commercial dehumidifiers, focus on key specs:

  • Capacity: Measured in pints per day (PPD)
  • Coverage area: Square footage the unit can handle
  • Airflow: Cubic feet per minute (CFM)

Read our reviews from other businesses to gauge real-world performance. Look for feedback on reliability, noise levels, and ease of use in commercial settings.

Budget and Cost Considerations

Commercial dehumidifiers range widely in price. Set a budget based on your needs and space size.

Entry-level units start around $500-$1100. The Ebac CD30-S Series Industrial Dehumidifier offers good value in this range.

Mid-range options like the Ebac CS90 Series Industrial Dehumidifier cost $1,500-$3,000. These suit larger spaces or heavy-duty use.

High-end industrial dehumidifiers can exceed $3,000. They're built for extreme conditions or very large areas.

Consider long-term costs too. Energy-efficient models may cost more upfront but save money over time.

Conclusion

Looking for the right commercial dehumidifier can be overwhelming - we get it. After exploring all the options above, we consistently recommend Ebac Dehumidifiers to our customers, and as their preferred dealer, we're proud to offer these top-quality units at the industry's lowest prices. These workhorses deliver exceptional moisture control and are built to last, which is why they're our most popular choice for warehouses, gyms, and commercial spaces.

The best part? We make getting your Ebac dehumidifier easy with free shipping, no sales tax (Excl. WY), and lifetime support from our team. If you're tired of dealing with moisture issues and want a reliable solution you can count on, you can't go wrong with an Ebac. Give us a call - we're here to help you choose the perfect unit for your space.

Key factors to remember:

  • Capacity (measured in pints per day)
  • Energy efficiency
  • Noise levels
  • Durability and build quality

Look for features that suit your environment:

  • Built-in pumps for continuous drainage
  • Digital controls for precise humidity management
  • Portability options for flexible use

Think about long-term value. A well-chosen dehumidifier can lead to:

  1. Improved air quality
  2. Reduced mold and mildew growth
  3. Lower energy costs
  4. Extended equipment lifespan

FAQs

What factors should be considered when selecting a dehumidifier for a commercial space?

When selecting a dehumidifier for a commercial space, consider the size of the area and its humidity levels. Other important factors include the unit's capacity (measured in pints of water removed per day), energy efficiency, noise levels, and drainage options. For large or specialized spaces, features like built-in pumps, low-temperature operation, and digital controls may be necessary.

What are the key specifications to look for in a commercial dehumidifier?

Key specifications to look for in a commercial dehumidifier include moisture removal capacity, airflow rate, and operating temperature range. Other important factors are energy efficiency (ENERGY STAR rating), noise levels (decibels), tank capacity or drainage options, and special features like built-in pumps or digital controls. The unit's size and portability should also be considered for ease of placement and potential relocation.

How can I calculate the dehumidification needs for a specific area or application?

To calculate dehumidification needs for a specific area, determine the space's cubic volume (length × width × height) and consider factors like moisture sources and desired humidity level. Use industry guidelines or online calculators to estimate the required dehumidifier capacity in pints per day. For precise calculations, consult with a professional to account for all variables specific to your application.

What are the efficiency standards to compare when choosing a commercial dehumidifier?

When choosing a commercial dehumidifier, key efficiency standards to compare include Energy Factor (EF) and Integrated Energy Factor (IEF). Look for ENERGY STAR certification, which indicates superior energy efficiency. Compare the pints of water removed per kilowatt-hour (pints/kWh) and the Coefficient of Performance (COP) to assess overall efficiency. Higher values in these metrics indicate more efficient operation and lower running costs.

What maintenance considerations are there when selecting a commercial dehumidifier?

When selecting a commercial dehumidifier, consider maintenance requirements such as filter cleaning or replacement frequency. Look for models with easily accessible components and user-friendly controls. Check the recommended service intervals and availability of spare parts. Units with self-diagnostic features and automatic defrost cycles can reduce maintenance needs. Additionally, consider the ease of drainage options and whether a built-in pump is necessary for your setup.

How do environmental conditions influence the choice of a commercial dehumidifier?

Environmental conditions significantly influence the choice of a commercial dehumidifier. Temperature range is crucial, as standard compressor models may struggle in colder environments (below 65°F/18°C), where desiccant dehumidifiers perform better. Consider humidity levels, as higher humidity requires more powerful units. Air quality and potential contaminants may necessitate additional filtration. For spaces with specific requirements, like low-temperature operation or corrosion resistance, specialized models may be necessary.

About The Author

Aaron Dewit, the author of this content section at Commercial Cleaning Depot, brings over 9 years of hands-on commercial cleaning equipment expertise as the lead content specialist. Working directly with manufacturers and facility managers across diverse industries, Aaron combines practical experience with extensive product testing to provide trustworthy, evidence-based guidance. His commitment to thorough research and real-world equipment evaluation ensures readers receive reliable, actionable advice for their specific cleaning challenges.