Evaporative coolers provide excellent air conditions. Evaporative coolers do not use chemical refrigerants, but rather use the natural cooling power of water. Evaporative coolers are often considered low-tech because they require less maintenance and use less electricity. They also have a lower risk of spiking harmful chemicals than AC refrigerants.
It is helpful to have a basic knowledge of the types of evaporative coolers before you start your search. This will allow you to narrow down your search based on the price range and specific cooling needs.
Understanding the main evaporative cooler brands will help you get an edge when you go to the appliance shop. Each brand has a reputation for having certain strengths and weaknesses. Only a few may have the right evaporative cooler to meet your needs.
We will be covering the main types of evaporative coolers as well as major brands in the remainder of this article. There are several types of evaporative coolers: direct, indirect, and 2-stage.
All air evaporative coolers work on the same principle. They allow water to evaporate into the air by providing mechanisms. These cold molecules reduce the temperature of the air because they evaporate the lowest-energy water molecules first.
The most popular type of evaporative cooler is the direct evaporative. They work by using a fan to draw hot air through a dampened membrane. The cooler air is then emitted into the home. You can purchase this evaporative cooler in a small or large size to cool one room or the entire house.
It can add humidity to the air so it is not recommended in areas where there are moisture problems. You can partially combat this by opening vents or using whole-house ventilation fans. It is important to place the direct cooler in a window, or open vents or windows slightly. They work best when there is constant airflow.
Indirect evaporative coolers work on the same principle as direct coolers. Indirect coolers don’t significantly alter the humidity. This is done by separating the air through the evaporative process and the inside air that is conditioned before being pushed in.
This is usually done by running air through a series of wet pipes. This will cool the air inside the pipes. This cooling method is suitable for areas that are more humid because it causes less humidity change. Indirect cooling is used most often in large applications such as warehouses or large retail establishments.
The name implies that 2-stage evaporative coolers combine both indirect and direct cooling technologies. This makes the air cooler than just indirect or direct evaporative coolers. This cooler air also has higher energy efficiency. This technology is not currently common.
The air is first cooled inside by an indirect cooling system. To cool the air further, it is then pushed through an indirect cooling system. This technology increases the inside humidity from 50% to 65%.
Because of their compact size and ease of use, portable evaporative coolers were named so. They can be easily moved from one room to another and stored in the non-cooling seasons. Many portable evaporative coolers have wheels at their bottoms.
Mounted evaporative coolers can be mounted on a roof, wall, roof, or ground. These coolers are usually permanent or semi-permanent. These coolers are too heavy to move, except for once per year. They are usually bolted in place all year. Nearly all indirect and 2-stage Evaporative Coolers must be mounted in some manner. Mounting larger direct evaporative cool is a good idea.