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Honeywell Whole-House Dehumidification System

A serious problem facing homeowners today is poor indoor air quality, according to the American Lung Association. The roots of this problem can be traced directly our need for energy-efficient homes to minimize the effects of high energy costs. Unfortunately, making homes tighter and more energy efficient also reduces the naturally occurring exchange of indoor and outdoor air. Fresh outside air stays out while air pollutants and excessive humidity can stagnate the indoor air quality over time.

Excessive humidity in particular, can create:

  • Feeling sticky or damp
  • Condensation on windows and other cold surfaces
  • Cupped wood flooring
  • Musty odor in the crawl space or your entire home

Sources of Humidity Include: Cooking, people consistently adding moisture into their own environment through breathing and perspiration, bathing/showering, and infiltration of outside air through cracks in flooring, electrical outlets, windows.

Many homeowners who are concerned with excess moisture in their homes purchase portable, single room dehumidifiers. However, portable units impact only a portion of the room or area in which they operate and can be difficult to maintain.

Portable Units:

  • Take up valuable space
  • Freeze up due to lack of airflow
  • Are noisy
  • Have a drain pan that needs to be emptied

Honeywell Whole House Dehumidification
The Better Solution

What homeowners don’t know is Whole-House Dehumidifiers are more effective, and can be less expensive than putting multiple single-room units in a home. Plus, whole-house solutions are virtually invisible. They are installed on central heating & cooling systems out of the living area so that treated air is distributed to all rooms.

How Whole-House Dehumidification Works

Honeywell’s Whole-House Dehumidifier, the DH9O can be installed in virtually any application: ducted with central heating and cooling equipment, standalone in a crawlspace or basement, or ducted to remove moisture within a single room or zone. Once installed, a Whole-House Dehumidifier automatically senses excess moisture and lowers humidity levels by removing moisture throughout the entire home.

Dehumidification Protects While Away

Whole House Dehumidifiers are the best way to protect vacation properties while the owners are away. When occupied, the thermostat may be set at a high temperature, keeping the AC from running and resulting in higher humidity. The whole house dehumidifier operates independent from the temperature setting, keeping humidity levels under control even with high temperatures in the home.


The secret is in the core. The Heat Recovery core of the DH90 acts much like an HRV, moving the air temperatures from one air stream to another.

Cooler air removes more moisture: After the initial air stream is cooled by moving through the evaporator, it moves through the core and pre-cools the new incoming air. The air temperature of the new incoming air is much cooler before hitting the evaporator, removing more moisture with less energy.

Call us today for more information about this wonderful product for our Florida climate! In-home analysis and our comprehensive price quotes are free of charge!