The Best Place for a Dehumidifier in a Grow Room

Pro300 Ceiling Hung Dehumdifieir for Grow Room

The best place to put a dehumidifier in a grow room depends on the layout, size, and airflow dynamics of the space. Here are some general guidelines:

1. Central Location

Place the dehumidifier in the center of the room to allow even coverage and efficient moisture removal. This works well for smaller grow rooms.

2. Near Problem Areas

Position the dehumidifier near areas prone to high humidity, such as close to water sources (like hydroponic systems or irrigation setups) or dense plant clusters.

3. Elevated Position

Elevate the grow room dehumidifier off the floor (e.g., on a sturdy shelf or platform) to improve airflow and target rising humid air, as warm, moist air tends to accumulate higher in the room.

4. Near Air Circulation Sources

Place the dehumidifier for grow room near fans or airflow sources to help distribute the dry air evenly throughout the grow room.

5. Away from Direct Light or Heat Sources

Avoid placing the dehumidifier directly under grow lights or near heaters to prevent overloading the unit or creating uneven drying conditions.

6. Maintain Clearance

Ensure at least 6–12 inches of clearance around the dehumidifier for proper air intake and exhaust.

7. Consider Drainage

If your use the wall mounted dehumidifier with drain hose, place it near a drain or collection reservoir to facilitate continuous operation without frequent emptying.

PREAIR, as an expert on dehumidification, recommends growers to use ceiling mounted dehumidifiers to control indoor humidity. The extra moisture adheres to the ceilings and walls and then accumulates into numerous droplets, which will drop on plants to cause mold and mildew. On the one hand, ceiling mounted dehumidifiers can absorb the warm moisture and accelerate the inside air circulation. On the other hand, ceiling hung dehumidifiers are not put on the floor, saving space to grow more plants. There are many advantages of using ceiling dehumidifiers. However, according to the particular condition(fans, lights, etc), the number and position of dehumidifiers need professional design. PREAIR has provided dehumidification solutions for many growers. Don't hesitate to contact us for more advice.