subject: How a Dehumidifier Works - De"myst"ifying the Dehumidifier [print this page] How a Dehumidifier Works - De"myst"ifying the Dehumidifier
Many people live in areas of very high humidity, and when it's humid outside, it's likely to be just as humid inside the home. For these homes, the owners may want to know How a Dehumidifier Works, as well as what the dehumidifier actually is. Let's start with what the dehumidifier actually is it's a device that helps remove the excessive humidity in the room by removing the extra moisture from the air. With special filters, the dehumidifier can also help remove various decontaminants from the room as well. There are various sizes ranging from mini units that dehumidify small rooms such as closets to the large whole house and basement sized units, and most use the same principles to dehumidify the room.
When looking at How a Dehumidifier Works, they are similar in many ways to air conditioners. The humid air is drawn into the dehumidifier and passes through cooled coils that are called an "evaporator". As the air passes through the coils, the moisture from the air condenses on these refrigerated coils, and drips into the tank or container. The water in the tank or container can be emptied or connected to a continuous drain hose. From the evaporator, the air is passed into a heat recovery systems and a fan blows the heated, dryer air back into the room.
Another component of the unit is a defrost system that automatically de-ices the unit when the temperature is cold enough to cause the unit to freeze up. A sensor automatically detects that the system is freezing up and the defroster automatically turns on. Another feature of the unit is that it detects when the container is full of water, it automatically shuts the unit off in order for container to not overflow.
One of the features of these dehumidifiers is a humidistat that allows the owner to determine the most comfortable humidity setting for the room or home. Obviously when it's too humid, it's extremely uncomfortable, and everything feels damp and soggy. But when the device over-dries the room, it's just as miserable particularly for those who are prone to dry uncomfortable sinuses, along with other problems for the structure of the home. The humidistat allows the consumer to set the humidity to a comfortable level and when the sensors detect that the selected level has been reached and it turns the unit off. In addition, when the humidity rises above the comfortable level, the units automatically turns on to start the process of removing the excess humidity from the air once again.
For the small devices that are used in closets and small spaces, these are quite different from their larger cousins. So How a Dehumidifier Works in these small spaces is that the container with the crystallized silica gel, or desiccant, is places in the space. The silica attracts the moisture in the air and captures the excess moisture in the container and eventually the desiccant becomes saturated. Once they are saturated, they must be allowed to dry out for up to 24 hours before being replaced in the room once again. These are very inexpensive and can be used in a variety of areas.
The theories of How a Dehumidifier Works are really very easy to understand and the units are quite easy to use.
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