Phone answered 24/7 · Chandler, AZ and nearby communities

Call 24/7: (480) 526-4676
Kyrene Water Damage HelpChandler, AZ · Answered 24/7

How Do Refrigerant Dehumidifiers Work in Restoration?

Last updated October 23, 2026

The short answer

The Core Cooling and Condensation Process

A refrigerant dehumidifier pulls humid air from a room through a fan. The air then passes over a set of cold coils containing a refrigerant, similar to an air conditioner. This rapid cooling causes the water vapor in the air to condense into liquid droplets on the coils. The collected water drips into a tank or drains away, and the drier air is reheated slightly before being released back into the space.

This continuous cycle gradually lowers the overall humidity level in the affected area. The process is most effective in warm, humid conditions. These conditions often occur in homes after air conditioning failures or storm-related leaks. Lowering humidity is critical to dry out building materials like drywall and flooring efficiently.

Why They Are Essential for Water Damage Work

Simply removing standing water is not enough after a leak. Moisture soaks into porous materials and lingers in the air, creating a perfect environment for mold and causing materials like wood to swell or warp. Refrigerant dehumidifiers tackle this hidden moisture by actively pulling water from the air. This accelerates the drying process for walls, floors, and personal belongings.

Without this step, a home may feel dry on the surface while structural components remain damp. This hidden dampness can lead to costly secondary damage, including mold growth and material degradation, weeks after the initial incident. The pros use specialized meters to monitor moisture levels and determine when the space is truly dry, ensuring a complete restoration.

  • They remove latent moisture from the air that fans and pumps cannot.
  • Lowering humidity prevents mold spores from finding the moisture they need to grow.
  • They help protect personal property like furniture and documents from warping and staining.
  • Accelerated drying minimizes the time your home is disrupted by restoration work.
  • Proper use can help prevent long-term structural damage to framing and subfloors.
  • They are a standard, critical component in the professional drying process.

How Pros Deploy and Monitor These Units

Water damage professionals do not just place a single dehumidifier in the middle of a wet room. They create a controlled drying environment. This involves using air movers or fans to circulate air across wet surfaces, which increases evaporation. The now-more-humid air is then directed toward the intake of strategically placed refrigerant dehumidifiers for efficient moisture removal.

The pros use tools like hygrometers and moisture meters to track progress. They measure the humidity in the air and the moisture content within walls and floors. Based on these readings, they adjust the number and placement of equipment. This scientific approach ensures all affected materials, even those hidden behind surfaces, are dried to a safe standard.

Comparing Refrigerant and Desiccant Dehumidifiers

Refrigerant models are the most common type used in residential restoration. They are effective in warmer conditions, typically above about 65 degrees Fahrenheit, and work well at reducing humidity to comfortable levels. Their operation relies on the temperature difference created by the refrigerant coils to condense water from the air.

Desiccant dehumidifiers use a rotating wheel of moisture-absorbing material and are better suited for colder environments or situations requiring extremely low humidity. For most home water damage events, refrigerant units are a standard choice. The pros select the equipment type based on the job's specific temperature, humidity, and drying goals.

What Homeowners Should Know and Do

If you experience water damage, your first step is to stop the water source if safe to do so. Then, contact local water damage pros for an inspection. They will assess the extent of the damage and develop a drying plan, which almost always includes industrial-grade refrigerant dehumidifiers. Do not rely on small, store-bought units for significant water damage.

Understand that this equipment must run continuously for days. It will be noisy and will increase your electricity usage temporarily. Keep the area sealed as much as possible for the system to work efficiently. Policies vary, and your insurer decides what is covered. Discuss the drying plan and equipment use with your insurance adjuster.

  • Turn off electricity to the wet area before entering for safety.
  • Remove easily movable wet items like rugs and cushions to aid drying.
  • Do not attempt to dry significant flooding with household appliances.
  • Keep windows and doors closed in the work area to contain dry air.
  • Save all receipts related to the incident for a potential insurance claim.
  • Ask the pros about their monitoring process and expected drying timeline.

Water damage does not wait

Phones are answered 24/7 for Chandler and nearby communities.

Call Now (480) 526-4676

Frequently asked questions

How long do refrigerant dehumidifiers need to run?

They typically run continuously for several days. The exact time depends on the amount of water, the materials affected, and indoor humidity. Professionals monitor moisture levels daily and remove the equipment only when everything meets a dry standard.

Can I rent one and do it myself?

While rentals are available, effective drying requires proper setup, monitoring, and powerful industrial equipment. Inadequate drying leads to mold and structural damage. For anything beyond a very small area, hiring a professional is strongly advised.

Will the dehumidifier remove the musty smell?

Yes, by removing the moisture that causes mold and mildew growth, the source of the odor is eliminated. However, if mold has already grown, specialized cleaning or removal may be needed to fully eliminate persistent smells.

Call Now (480) 526-4676