Dehumidifier Types: One for Every Situation

Excessive amounts of humidity can feel extremely uncomfortable. When the moisture level is high in your home, it can make rooms feel stuffy and even smell musty. More seriously, an overly humid home can lose its structural integrity, attract pests like silverfish and centipedes, and even make you sick.
Dehumidifiers remove excess moisture from the air to improve the comfort and health of your home. When you're buying a dehumidifier, it's important to understand the variations in technology and capacity, so that you can choose the right unit to suit your needs.

Dehumidifying Technology

AD-400 Image4Compressors
These dehumidifiers are the most common, and are very similar to air conditioners but with hot and cold coils inside the same box. A fan collects air from the surrounding area and pulls it into the dehumidifier. As the air passes through, it comes into contact with the cooled compressor coils. As the air cools, condensation collects on the coils and then drips into a reservoir. Then the dry air is then reheated to its original temperature and exhausted back into the room.
ADS-400 Image5Thermo-Electric
An alternative method of dehumidification uses thermo-electric technology. Instead of coils, an electric current passes through two dissimilar metals which transfer heat. There are no moving parts when thermo-electric peltiers are used, so the fan is the only component that makes noise. This makes them perfect for smaller, noise-sensitive environments even though they aren't as energy efficient as compressor units.
EDV-300 Image4Dessicant
These non-mechanical dehumidifiers use neither a compressor nor thermo-electric peltiers to reduce humidity. They pull in air and pass it over a desiccant material - such as a silica gel -which naturally absorbs moisture. The air doesn't need to be cooled before being dehumidified making them perfect for sub-zero conditions. Desiccant dehumidifiers complement mechanical units well, or can be used on their own in environments with relatively low humidity levels.

Dehumidifier Capacity

When you need more dehumidification in one part of your home than others, portable dehumidifiers are the way to go. These lightweight units are extremely maneuverable and ideal for homes with stairs. They often come with long power cords so they can be used anywhere and sometimes have a built-in humidistat that helps you gauge relative humidity in each room. They usually remove 30 to 60 pints of moisture from the air a day.
PD120 Image1Whole Home
A lot of research should be done before purchasing a whole home dehumidifier. They require higher purchase prices and proper maintenance, but are more than worth it if you find an appropriate unit in terms of size and functionality. They protect your home from mold, mildew, rust, cracking and warping, and can also preserve objects like furniture and artwork. These are high capacity units that can remove up to 100 pints of water per day.
WDH871 Image1Basements
Basements are the most susceptible area in your home to mold and high humidity. Sometimes a portable unit is sufficient, but basement dehumidifiers are designed especially for basement conditions. Some even have direct drain-off hoses to eliminate the need to run up and down the stairs making sure the water tank isn't full. These units usually draw 50 to 100 pints of water from the air a day.


Do you need help choosing a dehumidifier to help protect your home? Call  our toll free number to talk to expert about finding the right product to suit your needs.

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