Principle of morning dew

Dehumidifiers condensing type (based on the refrigeration unit) used in residential and ancillary rooms apartments and cottages in the pools and on-site . They afford to rapidly lower the relative humidity in the room with 90-100 % to the most comfortable and supportive for the human body 40-60%. An indispensable condition : drainage should be performed indoors, the temperature of which corresponds to a range of operating temperatures of the selected device .

During operation of wet air in the room passes through the desiccant evaporator on the cold surfaces of which the moisture condenses , and then flows down and is drained into the sump . The dehumidified air is fed to the condenser fan , where it is heated and returned to the room.

Due to repeated passage of air through the dryer air humidity gradually decreases , resulting in enhanced processes of evaporation from wet surfaces of walls and furniture. Getting rid of the excess moisture , and design things dry up , then the humidity in the room is no longer beyond the user-specified values – and dryer automatically shuts off.

If you remove all the moisture from the room impossible , dehumidifier works cyclically. Such a regime is typical for pools.

Selection desiccant is always performed in view of its performance , which determines how many liters of water per unit time unit can ” remove” from the air at a specific temperature and humidity . Performance is measured in ” liters per day” and used in apartments and cottages models ranging from 12 to 300 liters / day . ( Air to be dried at a temperature of +30 ° C and relative humidity 80 %).

What does a market?

an indispensable tool

Domestic dehumidifiers can be used in any room where the humidity is above the norm. These devices can reduce humidity , eliminating the possibility of accumulation of condensate on the surfaces of the ceiling and walls , thereby protecting them from damage – tarnishing fabric and wallpaper, paint cracking . Afford domestic dehumidifier to prevent the appearance of mold and mildew – a frequent guest poorly ventilated bathrooms, showers , laundry .

Fight fungus after its incorporation into the thickness of the material is often not so easy – may require the use of toxic chemicals, and in some cases – even relining tiles.

In the rainy season housewives often complain that the laundry after washing them dries. If you put the unit next to the clothesline drying wet textiles dry in just a few hours.


Dehumidifiers put inside large bookstores and wardrobes in the rainy season . In the pantry where you store caches , dehumidifiers prevented from caking bulk foods – sugar, salt, flour. Logically stored in a ” dried ” room and laundry detergents , medicines, and construction materials for which the manufacturer specified a certain level of relative humidity.

By type of household dehumidifier is most like a mobile air conditioning . During the day, the unit can ” pump out ” of air up to 30 liters of moisture . Enough to put a dehumidifier in the right place ( 10-15 cm from any place adjacent to the wall mounting ) , connected to a wall outlet , set the desired humidity – and it will take to work.

In the simplest models – electromechanical control : start-stop button , humidity control , allows you to set the desired humidity in the room – from 30 to 80-100 %.

Better dryers equipped multifunction panel with buttons on / off the device and switch modes. For a visual display of the current temperature in the room , relative humidity and other parameters of the dryer control panel can be incorporated Liquid Crystal Display .

Most models provide freeze protection and compressor protection . Protection function includes frequent starts compressor only 3 minutes after shutdown.

Discomfort while operating the domestic unit, the network does not consume more than 300-700 watts of electrical power , as a rule, does not deliver. Is that the noise level of the instrument working households may seem excessively high ( 44-52 dB) , especially if the device dries excessively humid and works without rest throughout the night .

Dryers located inside retractable tank condensate 3-12 liters , which, with the filling (high relative humidity in just a few hours) the user will have to empty (otherwise the unit will automatically turn off .)

However, if you move the unit from place to place is not planned , it is possible to equip the condensate drain from the dehumidifier to the drain or onto the street through a flexible tube . When this unit can serve less , once a week , for example, to check and clean if necessary built-in filter , clean the air intake and outlet grill with a soft cotton cloth dipped in warm soapy water .

Talking about specific models , it should be noted that the selection of quality dehumidifiers on the Ukrainian market is still small . Positive feedback from users has a model of the MJ-E16VX of MITSUBISHI ELECTRIC, CD 400-18 from the company DANTHERM. Besides unit Mitsubishi Electric MJ-E16VX now is the quietest in the world of household dryer .

Draining water kingdom

More productive compared with household dryers equipment ( dehumidifiers for swimming pools ) are used to create a comfortable environment for bathers and safeguard the pool building . After open water even at relatively low temperature soars intensely . Especially needed in the pool dehumidifiers in the summer, when high humidity outside. If the relative humidity exceeds 50% of the best in the winter and 65% in the summer at least 15-20% , then the conditions of stay in the pool become unbearable – a feeling of closeness with the ceiling and then dripping condensation fogged glass. Moisture on the walls and other surfaces causing corrosion , rot and education materials on the surface and in the bulk material mildew , resulting in pool room can be rendered useless in just one season of operation .

Most common in the pools got stationary dryers wall and floor mounting capacity from 30 to 110 liters per day . They are used mainly for small and medium-sized sites with water surface area of 20-40 square meters and consist of a single compact unit , which quickly mounted directly in the room and connected to the mains and drainage system of the building .

Stationary dehumidifiers channel capacity up to 300 liters / day . and more used in swimming pools with water surface area from 15-20 to over 100 square meters. They can be much larger floor and wall models , and functionality of such a technique is often wider .

For example , ducted dehumidifiers can be equipped with a water-cooled condenser, which allows the use of the heat of condensation of water vapor to heat the water in the pool or to preheat water used for domestic purposes . In some models (eg , DANTHERM CDP165) You can install a single-or two-piece water heater and the air damper to mix with fresh air (10-15 % of the performance of the drainage system ) . This will help to organize one installation in the pool forced ventilation , dehumidification and air heating.

In a particularly clever channel models dehumidifiers used plate heat exchangers , as well as special system relief valves , which, coupled with an advanced automation system allows you to maintain optimum humidity in the pool and under extreme climatic conditions “overboard” (tropics ) .

Mounted ducted dehumidifiers, usually in a separate technical room . With two pool their associated duct , through one of which moist air is drawn , and in the other in the pool fed dehumidified air .

Channel models with a low-pressure ventilators used in the case where the installation of wall or floor unit in the pool impossible. Have such devices can only bordering the pool technical room wall ( thickness of about 350 mm ) . To connect using short ducts with ventreshetkami .

Models with high-pressure fans can be installed away from the pool , the static pressure of their fans – to 250 Pa , it allows to overcome the aerodynamic drag of long ducts.

Ideally, dry air should reach the surfaces of all components basin , especially the panoramic windows , exterior walls and ceiling , otherwise they probably condensation. If there is a glass roof, then it is required and air cooling. For delivery of dry and heated air from the dryer to the powerful channel blown surfaces indoor pool collector duct routed to the distribution grids , which form the air jets so as to ” squeeze ” the humid air to the water surface , and the windows and building elements blow heated dehumidified air.

Removal and transport of humid air into the dehumidifier is often carried out through the false ceiling located in duct – manifold with intake grilles. Configuration and location of collectors are determined based on the characteristics of the building envelope pool shaped bowl .

Automatic maintenance of the required level of humidity using a wall, floor and channel models are usually provided with the integrated humidistat (usually it is set to a relative humidity of 60%). However , if you plan to reinstall frequent specified moisture level , it is recommended to connect to the remote channel drier room humidistat . The system includes a desiccant protection device antifreeze .

It should be noted that the drainage system works , not only during use of the pool , but also in a period of inactivity when the supply unit does not operate. Because in a deserted pool evaporation of moisture from the fixed surface of the water is less than during the operation , the performance of dehumidifiers logical substantially reduced.

Draining off possible by using a special film , harboring the entire surface of the water during periods of inactivity facilities and automatically or manually wound into a roll before using the pool.

Recognized leaders in quality products in the field of stationary dehumidifiers are products and companies DANTHERM CALOREX.

At the construction site , and not only

During the renovation and construction of housing is often used industrial dehumidifiers . These devices provide significant improvement in quality of finishing works through dry wall coverings ( plaster, wallpaper) , floor ( screed ) and ceiling without thermal deformations . They allow you to make a low moisture content in building materials, propped water, especially before laying decking flooring and wall covering , and therefore prevent the accumulation of moisture underneath.

Using a dehumidifier is very economical and efficient. Energy consumption compared with the heating and ventilation , followed by removal of moisture ( eg using heaters ) is minimal.

Another application of industrial dehumidifiers – mitigation of floods. With these devices, after pumping water pump can quickly dry the basement or ground floor flooded home . Common use of dryers – drying garages flooded spring floods .

Used on site , as a rule, industrial , mobile dehumidifiers . Performance of this class of devices is typically in the range of 22 to 120 liters per day. Devices like lockers at large ( for better maneuverability ) wheels. Chillers such dryers tend to work with ozone-friendly refrigerant. Built-in hygrometer and automatic defrost successfully prevent freezing of the evaporator. This allows the use of cell phones at low temperatures , up to +3 ° C. And on building such a need arises often .

Standard features include easy to clean air filter. The devices have a meter, which allows to measure the operating time of the compressor can be equipped with a remote humidistat for precise humidity control . In some models, the water tank is equipped with a built-in pump for pumping condensate drains.

On the Russian market of industrial mobile phones dryers presented KROLL, DANTHERM. Online you can find models from VEAB, REMKO and some other manufacturers.

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