In industrial settings, excessive humidity not only disrupts the normal operation of production equipment but can also lead 

to issues such as product moisture damage, metal corrosion, and electrical short circuits. Particularly during low-temperature 

or high-humidity seasons, single-function dehumidifiers often fall short of meeting requirements. This is where industrial 

dehumidifiers with heating capabilities become the critical solution. This article provides equipment procurement and factory 

management personnel with a practical selection methodology to assist in scientifically and efficiently completing equipment 

configuration.

I. Why Choose Industrial Dehumidifiers with Heating Functionality?

Standard dehumidifiers experience significant efficiency drops in low-temperature environments and may even shut down 

due to frost buildup. Models with heating capabilities actively raise air temperature through heating elements. This not only 

maintains stable dehumidification efficiency but also enables direct space heating, achieving integrated temperature and 

humidity control. These units are particularly suitable for:

• Winter or low-temperature workshop environments

• Storage spaces with strict temperature requirements

• Process areas requiring simultaneous temperature and humidity control

• Facilities with poor sealing and significant heat loss

II. Key Parameter Analysis

1. Rated Dehumidification Capacity

Typically measured in “liters/day” or “kilograms/hour,” indicating moisture removal capability under standard conditions 

(e.g., 30°C, 80% RH). Considerations for selection:

• Standard conditions may differ significantly from actual environments

• Dehumidification efficiency may vary during heating mode due to temperature rise

• Allow a 15-30% margin based on the most severe operating conditions

2. Heating Power and Heating Capacity

Heating power directly impacts temperature rise speed and control precision:

• Resistance heating: Fast heating, simple control, but higher energy consumption

• Heat pump assist: High energy efficiency ratio, suitable for long-term operation, but efficiency may decrease at extremely

  low temperatures

• Hybrid heating: Combines the advantages of both, offering greater adaptability

3. Temperature Operating Range

Clearly define the stable operating temperature range for the equipment in heating and dehumidification modes, paying 

particular attention to:

• Minimum start-up temperature

• Maximum safe operating temperature

• Precision of temperature-humidity interlock control

4. Other Key Technical Parameters

• Air Circulation Volume: Affects temperature and humidity uniformity

• Control Method: Intelligent programmable control enables time-based humidity/temperature strategies

• Protection Rating: IP rating must meet industrial environment requirements

• Energy Efficiency: Comprehensive evaluation of dehumidification capacity versus heating energy consumption

III. Key On-site Environmental Assessment Points

1. Space Characteristic Measurement

• Volume Calculation: Length × Width × Height, account for irregular areas

• Airtightness Assessment: Leakage points including door/window gaps, vents, material passageways

• Thermal Insulation: Wall materials, presence of insulation layers

2. Initial Temperature/Humidity vs. Target Values

• Measure peak temperature/humidity during the wettest season/period

• Define temperature/humidity ranges required for processes or storage

• Account for potential demand adjustments due to future production changes

3. Thermal Load Analysis

Calculate heat required to maintain target temperatures, including:

• Conduction Heat Loss: Heat dissipated through walls, roofs, etc.

• Ventilation heat loss: Heat dissipation due to air exchange

• Process heat load: Equipment heat dissipation, personnel heat generation, heat introduced by materials, etc.

• Moisture evaporation heat consumption: Heat absorbed during vaporization of moisture in dehumidification processes

4. Identification of Humidity Sources

Quantify primary moisture sources:

• Personnel activity (approx. 0.1-0.3 kg/h per person)

• Production processes (washing, cooking, cooling, etc.)

• Building material off-gassing (particularly pronounced in new constructions)

• External air infiltration

IV. Configuration Strategies and Recommendations

Small spaces (<500m³)

• Typically accommodated by a single unit

• Select mobile or wall-mounted models for flexible deployment

• Prioritize control precision and noise levels

• Recommend smart humidity sensors for automatic start/stop operation

Medium-sized workshops (500-2000m³)

• Consider distributed multi-unit layouts to enhance temperature/humidity uniformity

• Calculate total dehumidification capacity and heating demand to determine unit quantity

• Recommend models with centralized control systems for coordinated operation

• Allow for equipment redundancy to ensure stable operation in critical zones

Large-scale facilities (>2000m³)

• Professional thermal/humidity load calculations are mandatory

• Consider hybrid central/distributed solutions

• Evaluate integration with existing HVAC systems

• Design efficient air circulation paths to eliminate dead zones

• Recommend zone-based independent control for granular management

V. Summary of Selection Process

• Requirement Definition: Specify temperature/humidity targets, control precision, and operating periods

• Site Assessment: Measure spatial parameters, identify moisture/heat sources, evaluate airtightness

• Load Calculation: Use professional formulas or software to compute dehumidification capacity and thermal load

• Parameter Matching: Align equipment key parameters with calculation results

• Solution Comparison: Evaluate energy efficiency, cost, and applicability of different technical approaches

• Installation Planning: Design equipment layout, airflow organization, and control systems

• Verification & Adjustment: Conduct post-installation validation tests and fine-tune as needed

VI. Long-Term Operation & Maintenance Considerations

• Energy Consumption Monitoring: Establish baseline operational energy usage to promptly detect anomalies

• Preventive Maintenance: Regularly clean heat exchangers, inspect refrigerants, and calibrate sensors

• Adaptive Adjustments: Optimize operating parameters based on seasonal and production variations

• Data Logging: Maintain operational records to accumulate experience for future selections

Selecting industrial dehumidifiers with heating capabilities is a systematic process requiring comprehensive consideration of 

technical specifications, site conditions, and long-term operational needs. Through rigorous evaluation and calculation, you 

can achieve solutions that meet current requirements while reserving flexibility for future production changes. For large-scale 

projects, seek technical support from professional engineers or suppliers to ensure optimal configuration.