Dehumidifyer Questions Answered To reduce the level of moisture and humidity in the air around your home, what you need to get the job done is a dehumidifyer. Damp and humid air that is left unattended around the home can cause all sorts of problems such as encourage the growth of mold and lead to mildew and musky odors that will eventually lead you to health problems from breathing in polluted air. Not only that, but damp and humid air can be extremely uncomfortable and when you can’t breath properly, you won’t be able to sleep properly either. Humidity also encourages household pests such as fleas, cockroaches and moths to come into your home, and you certainly don’t want that. Mechanical/ Refrigerative This is the most common type of dehumidifyer. It works by first of all drawing in all the moist air using a small fan and when the water condenses, it begins to drip into a bucket where the water accumulates. From there, using the warm side of the refrigeration coil, the air is heated up once again. The thing about this sort of dehumidifyers is that they are only effective, or rather they perform best when the level of humidity is over 45%. |
This form of dehumidifyers performs at its best when the temperature is low and the level of humidity is relatively low as well. This type of unit uses a desiccant type of material which is responsible for the dehumidification process. Desiccant materials are something like silica gel type of materials, and they usually have a very high affinity for water vapor, which makes it excellent for use in a dehumidifier. When the level of humidity is relatively low, the desiccant material becomes equilibrium where the contents of the moisture are low and vice versa when the level of humidity is high.
By exposing desiccant material to high levels of humidity, what happens is that it will attract and retain some of the water vapor that is floating around in the air to a humidity air stream that is relatively high. These same desiccants will then be exposed to a humidity air stream that is relatively lower. The difference between the first air stream and the second air stream is that the first consists of air that is being dehumidified and the content of the water vapor is reduced, while the second is used to regenerate the desiccant material and the water content increases, allowing another cycle to begin in it. In short, desiccant dehumidifyers work to produce the dehumidification process by consuming heat.
This type of unit also consists of four major parts, which are:
- Several types of components to hold the desiccant
- A fan so that the air that is going to be dehumidified can move around in the desiccant holder
- A heater which will be used in the process of regenerating the air
- And a fan that will move the air that is low in humidity through the desiccant holders
Electronic
These units condense the water vapor in the air using a peltier heat hump that works to generate a cool surface that will condense the water vapor. One of the plus points of this type of dehumidifyer unit is that it is quiet because it uses a mechanical compressor to function. Another thing that you will love about them is that their design is small and compact and the parts are low cost as well, which make them very affordable
Air Conditioners
Although it may not seem like it, but air conditioners to double up as dehumidifyers when they chill the air around them. Some of the newer air conditioning units will use what is called a condensing coil and fan, and these two items are what will work to help evaporate some of the accumulated water and direct them towards the outdoor air. This is slightly different form the older units, which previously just allowed air to drip on the outside of your home instead of the inside, which is why any central air conditioning unit had to be connected to a drain of some sort in order for this process to take place.
Although air conditioners work to cool the air, they also perform the dehumidification process by passing over a series of cooling coils and then over a set of heating coils before it eventually goes back into the room in the form of air that is dryer. The only difference would be probably when the air goes thorough the cooling coils – which by the way are also known as evaporators – it directly goes into a room. Then, something which is known as the heated freon will pass thorough a tube located on the outside of your home before going into the heating coils (which are also known as the condenser). The outside air that passes over this will remain on the outside, while the water that has condensed over the evaporator in the dehumidifier will be directed into a hose leading to the drain.
Makeshift Dehumidifyers
Since these air conditioning units double up as a basic dehumidifier as well, some of the newer window air conditioning units are often given the dual role of being makeshift dehumidifiers. They work in a way that instead of the exhaust being sent outside, it id directed back into the room instead, which produces more or less the same effect as a dehumidifyer.
Collection
The thing about a lot of dehumidifiers is that most of them are adaptable, whereby they can be connected so that the output drips directly into your drain or garden using a hose instead of it dripping directly into your home. The dehumidifier units will usually come with sensors that trigger an automatic turn off once your dehumidifyer is full. Instead of having to empty the buckets every 8 or 12 hours or so like before, what is great about these units is that it can be linked to a plumbing or hose that will allow it to automatically drain once they are full.
Portability
Water from the dehumidifyer may not be suitable for consumption, but at least it wont go completely to waste because you can use them for other things like watering your plants or something. The reason that the water from the dehumidifiers is deemed not safe for consumption is because they may:
- Contain traces of metal such as solder, lead, copper, aluminum and zinc, all of which could be harmful to your body
- Contain all sorts of pathogens that have accumulated in the water such as fungus, especially because the water is stagnant
- Not contain minerals, and therefore the water would taste rather flat and unpleasant
Better not take the risk and consume the water because even if it does have the faintest traces of metal in it, it could prove to be dangerous. Try food-grade dehumidifyers instead, where the toxic metal bits are avoided and the collection tank is kept clean at all times.

