Proper dehumidifier placement is critical for drying a property quickly after a water leak. The goal is to remove moisture from the air and accelerate the evaporation of water trapped in building materials.

 

Best Location for a Restoration Dehumidifier

1. Place the Dehumidifier Near the Wettest Area

Position the LGR dehumidifier as close as possible to the affected area, such as:

Water-damaged carpet

Damp drywall

Wet hardwood flooring

Flooded basement sections

Avoid placing it directly in standing water.

2. Put the Dehumidifier in the Center of the Affected Room

For a single-room leak, place the dehumidifier near the center of the room to maximize air circulation and moisture removal.

3. Keep Adequate Clearance

Most commercial dehumidifiers require:

At least 6–12 inches (15–30 cm) of space around air intakes and outlets

Unobstructed airflow

Access to a drain hose or collection tank

Always follow the manufacturer's clearance recommendations.

4. Close Doors and Windows

Keep the affected area isolated whenever possible. Closing doors and windows prevents humid outdoor air from entering and allows the dehumidifier to work more efficiently.

 

Multi-Room Water Damage Restoration

If water has spread into multiple rooms:

Place the dehumidifier in the area with the most severe damage.

Use air movers or fans to direct moist air toward the dehumidifier.

For extensive damage, multiple dehumidifiers may be required to maintain efficient drying conditions.

 

Basement Leak Placement

For basement leaks:

Position the unit on a dry, level surface.

Place it near the source of moisture, such as seepage walls or flooded areas.

Keep it away from obstructions that could block airflow.

Use continuous drainage if available, since water extraction can be substantial.

 

Additional Drying Tips

Remove standing water before operating the dehumidifier.

Run the unit continuously during the drying process.

Monitor humidity levels with a hygrometer.

Aim to reduce relative humidity to below 50%, ideally between 30% and 50%.

Combine dehumidifiers with air movers for faster structural drying.

 

Professional Water Damage Restoration

For significant leaks, restoration professionals often place a low-grain refrigerant (LGR) dehumidifier in the center of the drying chamber while strategically positioning air movers around wet materials. This creates continuous airflow across surfaces and significantly speeds up drying.

In most cases, the best place for a dehumidifier after a leak is close to the water-damaged area, with sufficient airflow around the unit and the room sealed from outside humidity. This setup maximizes moisture removal and helps prevent mold growth and secondary damage.