Evaporative Air Conditioning
The Main Types of Evaporative Air Conditioners
Evaporative air conditioners, also referred to as the swamp coolers, are best suited for low-humidity areas. By evaporating water in such areas, these air conditioners provide energy-efficient and natural means of cooling. These air conditioners cool the surrounding air by blowing it over water-saturated pads. This causes the air to evaporate into the air hence cooling it to between 15 d 40̊F. The cool air is then blown into the house to replace the warmer air that is escaping through the windows.
Currently, various evaporative air conditioner brands are available in the market. However, the main types of evaporative conditioners are the fixed room units, the ducted units and the portable units.
This is one of the most preferred types of evaporative coolers. Portable evaporative coolers are relatively cheap to acquire, easy to install and operate. For them to operate, these units require a source of dry air, water and a standard power outlet. As such, such units should be placed close to an open window or an external door that has an opening on the opposite side of room. Portable evaporative air conditioners are best suited for small rooms. If you decide to purchase such units, you should opt for the ones with a variable fan speed, directional louvers and a water level gauge.
Fixed room evaporative air conditioner units
Fixed evaporative air conditioner units are permanently plumbered and wired on external windows. Such units are best suited for open spaces measuring between 30m2 and 50m2. For optimal performance, these units should be positioned towards the prevailing summer winds. Fixed evaporative air conditioners are more expensive to acquire as compared to the portable units.
Ducted air conditioner units
Ducted evaporative air conditioner units are installed on the roof of the house. Hot and dry air enters these units from the surrounding. This air is cooled by the unit and circulated in the house through vents. While using these units, you should ensure that the house is well ventilated to allow the hot air to escape from the house. Such units are ideal for use in buildings with a big ceiling space and whole homes.
The choice of air conditioner units should be based on the local climate, cost and personal preference. After installation, evaporative air conditioners should be cleaned and drained regularly to minimize the buildup of minerals and sediment, which may lead to the breakdown of the units. Basically, evaporative air conditioners should never be used in places with a humid climate. Since these units add humidity to the air to cool the house, they will not be effective in humid climates. Additionally, if you would like to install evaporative air conditioners, you should also consider water supply in your area as these coolers require a constant supply of water.
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